springMVC+myBatis中如何进行事务处理

springMVC+myBatis中在使用注解方式的时候如何进行事务处理

1个回答

在Spring的xml文件里这么配


class="org.springframework.jdbc.datasource.DataSourceTransactionManager">




然后在dao层或者符合业务逻辑的地方加@Transactional 就可以

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springMVC+myBatis中如何进行事务处理
springMVC+myBatis中在使用注解方式的时候如何进行事务处理
请教怎么配置springmvc+spring+mybatis的事务,手动控制的
请教怎么配置springmvc+spring+mybatis的事务,手动控制的
SpringMVC Mybatis 注入和事务的问题 通过其他类
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SpringMVC mybatis注入Dao层失败
BaseDaoImpl.java ``` public class BaseDaoImpl<T> extends SqlSessionDaoSupport { @Resource public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) { super.setSqlSessionFactory(sqlSessionFactory); } public List<QuestionOption> GetTest() { return getSqlSession().selectList("executeSql", "SELECT * FROM xxx"); } } ``` BaseDao.java ``` public interface BaseDao { public List<QuestionOption> GetTest(); } ``` QuestionBankServiceImpl.java ``` @Transactional @Service("QuestionBankService") public class QuestionBankServiceImpl implements IQuestionBankService { @Resource private IQuestionBankDao questionBankDao; public List<QuestionOption> GetTest() { List<QuestionOption> list=questionBankDao.GetTest(); return list; } } ``` spring-mvc.xml ``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <mvc:annotation-driven /> <mvc:resources location="/images/" mapping="/images/**" /> <mvc:resources location="/css/" mapping="/css/**" /> <mvc:resources location="/js/" mapping="/js/**" /> <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.TJ.test.controller" /> <!--避免IE执行AJAX时,返回JSON出现下载文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> <value>application/json;charset=UTF-8</value> </list> </property> </bean> <!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 --> </list> </property> </bean> <!-- 定义跳转的文件的前后缀 ,视图模式配置 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 --> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> <!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 默认编码 --> <property name="defaultEncoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxUploadSize" value="10485760000" /> <!-- 内存中的最大值 --> <property name="maxInMemorySize" value="40960" /> </bean> <!-- 全局异常处理 自定义实现spring的全局异常解析器HandlerExceptionResolver --> <bean id="exceptionResolver" class="com.anyi.globallicai.mvcframework.CustomExceptionResolver"></bean> </beans> ``` spring-mybatis.xml ``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描 --> <context:component-scan base-package="com.Tj.test.*" /> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:conf/jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driver}" /> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:conf/mybatis-config.xml"></property> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/Tj/test/mapping/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.TJ.test.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans> ``` BaseDao 我想写一些基础的 增删改查 然后 以后dao的每个class 直接继承 BaseDao 在Service直接调用就可以了 现在 运行调用之后 提示 Invalid bound statement (not found): com.Tj.test.dao.IQuestionBankDao.GetTest 所以怀疑没有注入成功 ![结构目录](https://img-ask.csdn.net/upload/201808/20/1534754528_778233.jpg)
springmvc+mybatis 事务该怎么配置,请大神详细解答 谢啦
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基于springmvc+mybatis的登录表单提交后404
前端填写正确的用户名和密码后,提交登录,浏览器显示404,前端提交的地址是/userlogin,后端对接的/user/userlogin也是对的,浏览器f12里显示请求的确成功传给了后端,但是不知道为什么404。用的是tomcat8.5,java版本1.8,phpstudy最新版,mysql5.7.26。 ## 这是所用到的包: ![图片说明](https://img-ask.csdn.net/upload/202002/01/1580567617_880785.jpg) ## 这是目录结构: ![图片说明](https://img-ask.csdn.net/upload/202002/01/1580567511_223692.jpg) ## 这是web.xml: ```xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>springmvc_test</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 配置spring监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 加载spring配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/context-config.xml</param-value> </context-param> <!-- 配置前端控制器 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <!-- DispatcherServlet在初始化方法里面会读取该初始化参数的值来获得 spring配置文件的位置 ,然后启动spring容器。 --> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/springmvc-config.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 配置字符编码 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app> ``` ## 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这是mybatis-config.xml: ```xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <typeAliases> <!-- 配置别名 --> <typeAlias alias="User" type="com.test.pojo.User"/> </typeAliases> </configuration> ``` ## 这是springmvc-config.xml: ```xml <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!-- 扫描controller包下的注解 --> <context:component-scan base-package="com.test.controller"></context:component-scan> <!-- 开启注解 --> <mvc:annotation-driven></mvc:annotation-driven> <!-- 静态资源访问 --> <mvc:default-servlet-handler/> <!-- 视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置试图解析的默认路径,即配置页面的根路径 --> <property name="prefix" value="/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans> ``` ## 这是UserController.java: ```java package com.test.controller; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.ModelAndView; import com.test.pojo.User; import com.test.service.UserService; //声明控制器 @Controller //设置bean的scope属性为多例(prototype) @Scope("prototype") //设置请求映射,当客户端请求/user时,转到该控制器处理 @RequestMapping("/user") public class UserController { @Autowired private UserService userService; @RequestMapping(value="/userlogin") public ModelAndView login(String user_Name,String user_pwd,ModelAndView mv,HttpSession session){ //调用userService中的login方法处理user实体类对象 User user = userService.login(user_Name,user_pwd); //登录的逻辑判断,判断条件是返回结果不为空 if(user!=null){ //登陆成功,将user对象设置到HttpSession作用范围域中,相当于服务端的cookie,有效时间默认30分钟 //在程序运行期间,在任意页面都可以提取它的值。 session.setAttribute("user",user); //转发到main请求 //登录成功,跳转页面 mv.setViewName("login/login-success"); }else{ //登录失败,向前端传递失败信息 mv.addObject("message","用户名或密码错误,请重新输入!"); //登录失败,跳转到登录页面 mv.setViewName("login"); } return mv; } //跳转到用户注册界面 @RequestMapping(value="/userregister"/*,method=RequestMethod.POST*/) public String register(User user){ String user_Name = user.getUser_Name(); //如果数据库中没有该用户,可以注册,否则跳转页面 if(userService.findByUserName(user_Name)==null){ //添加用户 userService.register(user); //注册成功,跳转到主页面 return "index"; }else{ //注册失败,跳转到错误页面 return "error"; } } } ``` ## 这是UserMapper.java: ```java package com.test.mapper; import org.apache.ibatis.annotations.Param; import com.test.pojo.User; public interface UserMapper { //根据用户名和密码查找,mybatis中有多个参数时,需要使用@Param注解 User findByUserNameAndPassword(@Param("user_Name")String user_Name,@Param("user_Pwd")String user_Pwd); //增加用户 void addUser(User user); //根据用户名查询 User findByUserName(String user_Name); } ``` ## 这是UserMapper.xml: ```xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.tes.mapper.UserMapper"> <!-- 根据用户名和密码查询 --> <select id="findByUserNameAndPasssword" resultType="User"> select * from user where user_Name=#{user_Name} and user_Pwd=#{user_Pwd} </select> <!-- 增加用户 --> <insert id="addUser" parameterType="User"> insert into user (user_Name,user_Pwd,user_Email,user_NickName,user_Birth,user_Phone,user_InvitationCode) values(#{user_Name},#{user_Pwd},#{user_Email},#{user_NickName},#{user_Birth},#{user_Phone},#{user_InvitationCode}) </insert> <!-- 根据用户名查询 --> <select id="findByUserName" resultType="User"> select * from user where user_Name=#{user_Name} </select> </mapper> ``` ## 这是User.java: ```java package com.test.pojo; import java.sql.Timestamp; public class User { private int user_Id; private String user_Name; private int user_Pwd; private String user_Email; private String user_NickName; private Timestamp user_Time; private String user_Birth; private int user_Fans; private int user_Follow; private int user_Score; private String user_HeadImgAddr; private int user_Phone; private String user_InvitationCode; public int getUser_Id() { return user_Id; } public void setUser_Id(int user_Id) { this.user_Id = user_Id; } public String getUser_Name() { return user_Name; } public void setUser_Name(String user_Name) { this.user_Name = user_Name; } public int getUser_Pwd() { return user_Pwd; } public void setUser_Pwd(int user_Pwd) { this.user_Pwd = user_Pwd; } public String getUser_Email() { return user_Email; } public void setUser_Email(String user_Email) { this.user_Email = user_Email; } public String getUser_NickName() { return user_NickName; } public void setUser_NickName(String user_NickName) { this.user_NickName = user_NickName; } public Timestamp getUser_Time() { return user_Time; } public void setUser_Time(Timestamp user_Time) { this.user_Time = user_Time; } public String getUser_Birth() { return user_Birth; } public void setUser_Birth(String user_Birth) { this.user_Birth = user_Birth; } public int getUser_Fans() { return user_Fans; } public void setUser_Fans(int user_Fans) { this.user_Fans = user_Fans; } public int getUser_Follow() { return user_Follow; } public void setUser_Follow(int user_Follow) { this.user_Follow = user_Follow; } public int getUser_Score() { return user_Score; } public void setUser_Score(int user_Score) { this.user_Score = user_Score; } public String getUser_HeadImgAddr() { return user_HeadImgAddr; } public void setUser_HeadImgAddr(String user_HeadImgAddr) { this.user_HeadImgAddr = user_HeadImgAddr; } public int getUser_Phone() { return user_Phone; } public void setUser_Phone(int user_Phone) { this.user_Phone = user_Phone; } public String getUser_InvitationCode() { return user_InvitationCode; } public void setUser_InvitationCode(String user_InvitationCode) { this.user_InvitationCode = user_InvitationCode; } @Override public String toString() { return "User [user_Id=" + user_Id + ", user_Name=" + user_Name + ", user_Pwd=" + user_Pwd + ", user_Email=" + user_Email + ", user_NickName=" + user_NickName + ", user_Time=" + user_Time + ", user_Birth=" + user_Birth + ", user_Fans=" + user_Fans + ", user_Follow=" + user_Follow + ", user_Score=" + user_Score + ", user_HeadImgAddr=" + user_HeadImgAddr + ", user_Phone=" + user_Phone + ", user_InvitationCode=" + user_InvitationCode + "]"; } } ``` ## 这是UserService.java: ```java package com.test.service; import com.test.pojo.User; public interface UserService { //通过用户名及密码核查用户登录 User login(String user_Name,String user_Pwd); //增加用户 void register(User user); //根据用户名查询 User findByUserName(String user); } ``` ## 这是UserServiceImpl.java: ```java package com.test.service.impl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import com.test.mapper.UserMapper; import com.test.pojo.User; import com.test.service.UserService; @Service @Transactional public class UserServiceImpl implements UserService { //注入UserMapper接口 @Autowired private UserMapper userMapper; //登录,根据用户名和密码进行查询 @Override public User login(String user_Name,String user_Pwd){ return userMapper.findByUserNameAndPassword(user_Name,user_Pwd); } //注册,增加用户 @Override public void register(User user){ userMapper.addUser(user); } //根据用户名查询 @Override public User findByUserName(String user_Name){ return userMapper.findByUserName(user_Name); } } ``` ##这是login.jsp ```jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <link rel="stylesheet" type="text/css" href="../css/login.css" /> <title>登录</title> </head> <body> <!--导航栏--> <nav class="nav"> <ul> <li class="logo"><a href="#">Eday</a></li> <li class="shouye"><a href="../index.jsp" class="neirong">首页</a></li> <li class="fgx">|</li> <li><a href="#" class="neirong">文章列表</a></li> <li class="fgx">|</li> <li><a href="#" class="neirong">留言板</a></li> <li class="fgx">|</li> <li><a href="#" class="neirong">更新日志</a></li> </ul> </nav> <!--登录板块--> <header class="header"> <p class="logintitle"> <b>登录</b> </p> <form action="${pageContext.request.contextPath }/user/userlogin" method="post" class=login-form> <p class= login-username-p> <label for="username" class="login-username-text">用户名:</label> <input type=text name="user_Name" class="login-username-input"> <br><a href="register.jsp" class=login-register>注册</a> </p> <p class="login-psw-p"> <label for="psw" class="login-psw-text">密码:</label> <input type=password name="user_Pwd" class="login-psw-input"> <br><a href="#" class=login-forget>忘记密码</a> </p> <div class=login-button-div> <label for=button></label> <button type=sublim class=login-button>登录</button> </div> </form> </header> </body> </html> ``` ## 这是login-success.jsp: ```jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>登录成功,请等待跳转...</title> <script type="text/javascript"> onload=function(){ setInterval(go, 1000); }; var x=3; //利用了全局变量来执行 function go(){ x--; if(x>0){ document.getElementById("sp").innerHTML=x; //每次设置的x的值都不一样了。 }else{ location.href='../index.jsp'; } } </script> </head> <body> <!--导航栏--> <nav class="nav"> <ul> <li class="logo"><a href="#">Eday</a></li> <li class="shouye"><a href="../index.jsp" class="neirong">首页</a></li> <li class="fgx">|</li> <li><a href="#" class="neirong">文章列表</a></li> <li class="fgx">|</li> <li><a href="#" class="neirong">留言板</a></li> <li class="fgx">|</li> <li><a href="#" class="neirong">更新日志</a></li> </ul> </nav> <header> <div> <p>登录成功!页面将在3秒后自动跳转,请稍等...</p> </div> </header> </body> </html> ``` ## 这是数据库: ![图片说明](https://img-ask.csdn.net/upload/202002/01/1580568589_694404.jpg)
springMVC集成mybatis报错
springMVC集成mybatis报错: org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'basVideoMapper' defined in file [D:\TOOLS\software\apache-tomcat-7.0.69\wtpwebapps\TanWuAppAPI\WEB-INF\classes\com\tanwuapp\java\BasVideoMapper.class]: Cannot resolve reference to bean 'SqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'SqlSessionFactory' is defined at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5068) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5584) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:679) at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1966) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'SqlSessionFactory' is defined at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:529) at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1095) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:277) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322) ... 28 more applicationContext配置文件 ``` <!-- spring mvc 自动扫描注解 --> <context:component-scan base-package="com.app.mapper"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mapperLocations" value="classpath:com/app/mapper/*.xml" /> </bean> <!-- mybatis 配置 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.app.java" /> <property name="SqlSessionFactoryBeanName" value="SqlSessionFactory" /> </bean> <!-- spring 事务处理 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> ``` springMVC-servlet配置文件: ``` <context:component-scan base-package="com.app.controller" /> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/views/" /> <property name="suffix" value=".jsp" /> </bean> ``` web.xml ``` <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> </listener> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止Spring内存溢出监听器 --> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>SpringMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/springMVC-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app> ``` tomcat服务启动时报错,求帮忙看下。
重复的事务标识,求解决方案,框架:springMVC+mybatis,数据库oracle
项目总是隔两天报一次错误:重复的事物标识,报错的sql总是涉及到 使用 db_link的sql语句,重启项目后就好了,求高手解答!!! 报错内容如下: ``` HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: type Exception report message Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: description The server encountered an internal error that prevented it from fulfilling this request. exception org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: ### Error querying database. Cause: java.sql.SQLException: ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) ### The error may exist in file [C:\tomcat\apache-tomcat-7.0.70\webapps\webApi\WEB-INF\classes\com\petrochina\mapping\StaypxsjhMapper.xml] ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### SQL: SELECT nvl(sum(A.XSL/A.ZB),0) FROM (SELECT nvl(sum(QY_PFWCL+ QY_LSWCL+CY_PFWCL+ CY_LSWCL),0) as XSL,MZXNJG, (select AREA_SCZB FROM BASE_PROVINCIAL_AREA@xbzhpdb WHERE AREA_SQBM = MZXNJG) as ZB FROM STA_YPXSJH_WC WHERE to_char(CALDAY,'yyyy-mm-dd') BETWEEN ? and ? GROUP BY MZXNJG) A WHERE A.ZB is not null ### Cause: java.sql.SQLException: ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) ; uncategorized SQLException for SQL []; SQL state [99999]; error code [24757]; ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) ; nested exception is java.sql.SQLException: ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:973) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) root cause org.springframework.jdbc.UncategorizedSQLException: ### Error querying database. Cause: java.sql.SQLException: ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) ### The error may exist in file [C:\tomcat\apache-tomcat-7.0.70\webapps\webApi\WEB-INF\classes\com\petrochina\mapping\StaypxsjhMapper.xml] ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### SQL: SELECT nvl(sum(A.XSL/A.ZB),0) FROM (SELECT nvl(sum(QY_PFWCL+ QY_LSWCL+CY_PFWCL+ CY_LSWCL),0) as XSL,MZXNJG, (select AREA_SCZB FROM BASE_PROVINCIAL_AREA@xbzhpdb WHERE AREA_SQBM = MZXNJG) as ZB FROM STA_YPXSJH_WC WHERE to_char(CALDAY,'yyyy-mm-dd') BETWEEN ? and ? GROUP BY MZXNJG) A WHERE A.ZB is not null ### Cause: java.sql.SQLException: ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) ; uncategorized SQLException for SQL []; SQL state [99999]; error code [24757]; ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) ; nested exception is java.sql.SQLException: ORA-24757: 重复的事务处理标识 ORA-02063: 紧接着 line (起自 XBZHPDB) org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:84) org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:371) com.sun.proxy.$Proxy13.selectOne(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:163) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52) com.sun.proxy.$Proxy30.queryShengTotalZhanBi(Unknown Source) com.petrochina.service.impl.staypxsjhServiceImpl.XBWL_scgk(staypxsjhServiceImpl.java:383) com.petrochina.controller.HomeController.XBWL_scgk(HomeController.java:1041) sun.reflect.GeneratedMethodAccessor146.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:498) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:690) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) javax.servlet.http.HttpServlet.service(HttpServlet.java:624) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) note The full stack trace of the root cause is available in the Apache Tomcat/7.0.70 logs. Apache Tomcat/7.0.70 ```
springmvc+mybatis一次操作多张表插入的问题
如题,本人才接触Java的springmvc,前端的一次保存点击事件,后端需要分别向5张表插入数据,看了网上的demo,几乎一张表对应一个mapper,mapper里面有对应这张表的操作,五张表执行插入操作。。。任何一张出问题就回滚,自然想到用事务来控制,但是貌似网上也没有怎么看到这方面的说明。。。。目前的插入数据方式是kssryjbxxbService.insert(kssryjbxx); 这种方式,有没有事务控制可回滚的方式,比如sqlsession,sringmvc里面怎么使用sqlsession,还有就是问个额外的问题,目前开发的系统涉及到几百张表。。。都写mapper的话太麻烦了,有没有老式的直接执行sql语句的操作方式。。。而不是每张表都去建立对应的dao,mapper,service....
关于springmvc+mybatis 注入问题
service: ``` package com.yhq.service.biz; import com.yhq.service.po.User; public interface UserBiz { void insert(User u); } ``` impl: ``` package com.yhq.service.impl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.yhq.service.api.UserMapper; import com.yhq.service.biz.UserBiz; import com.yhq.service.po.User; @Service public class UserBizImpl implements UserBiz { @Autowired private UserMapper userMapper; public void insert(User u) { // TODO Auto-generated method stub userMapper.insert(u); } } ``` database.xml ``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"> <aop:aspectj-autoproxy/> <!-- 数据源配置,使用应用内的DBCP数据库连接池 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName"><value>${jdbc.driverClassName}</value></property> <property name="url"><value>${jdbc.url}</value></property> <property name="username"><value>${jdbc.username}</value></property> <property name="password"><value>${jdbc.password}</value></property> <property name="maxActive"><value>${jdbc.maxActive}</value></property> <property name="maxWait"><value>${jdbc.maxWait}</value></property> <property name="maxIdle"><value>${jdbc.maxIdle}</value></property> <property name="initialSize"><value>${jdbc.initSize}</value></property> <property name="removeAbandoned"><value>true</value></property> <property name="testWhileIdle"><value>true</value></property> <property name="testOnBorrow"><value>false</value></property> <property name="validationQuery"><value>SELECT 1</value></property> </bean> <!-- Transaction manager for a single JDBC DataSource --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:sqlmap-config.xml" /> <property name="mapperLocations"> <value>classpath*:com/yhq/service/map/*Mapper.xml</value> </property> </bean> <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate" scope="prototype"> <constructor-arg index="0" ref="sqlSessionFactory" /> </bean> <!-- 连接事务的注解配置 --> <tx:annotation-driven transaction-manager="transactionManager" /> <bean id="txInterceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor"> <property name="transactionManager"> <ref bean="transactionManager"/> </property> <property name="transactionAttributes"> <props> <prop key="insert*">PROPAGATION_REQUIRED,-Exception</prop> <prop key="save*">PROPAGATION_REQUIRED,-Exception</prop> <prop key="delete*">PROPAGATION_REQUIRED,-Exception</prop> <prop key="update*">PROPAGATION_REQUIRED,-Exception</prop> <prop key="create*">PROPAGATION_REQUIRED,-Exception</prop> <prop key="*">PROPAGATION_REQUIRED,readOnly</prop> </props> </property> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionTemplateBeanName" value="sqlSession"/> <property name="basePackage"> <value> com.yhq.service.api </value> </property> </bean> <bean id="aspectJExpressionPointcutAdvisor" class="org.springframework.aop.aspectj.AspectJExpressionPointcutAdvisor"> <property name="advice"> <ref bean="txInterceptor" /> </property> <property name="expression"> <value><![CDATA[execution(* com.yhq..*.*BizImpl.*(..)) && @within(org.springframework.stereotype.Service) && (execution(* create*(..)) || execution(* delete*(..)) || execution(* update*(..)) || execution(* save*(..)))]]></value> </property> </bean> </beans> ``` spring.xml ``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <mvc:annotation-driven/> <context:component-scan base-package="com.yhq"> </context:component-scan> <bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"> <property name="order" value="0" /> <property name="cache" value="true" /> <property name="prefix" value=""/> <property name="suffix" value=".html"/> <property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView" /> <property name="exposeSpringMacroHelpers" value="true" /> <property name="exposeRequestAttributes" value="true" /> <property name="exposeSessionAttributes" value="true" /> <property name="requestContextAttribute" value="rc" /> <property name="contentType" value="text/html;charset=UTF-8" /> </bean> <bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"> <property name="templateLoaderPath" value="/WEB-INF/pages/" /> <property name="defaultEncoding" value="UTF-8" /> <property name="freemarkerSettings"> <props> <prop key="template_update_delay">0</prop> <prop key="locale">zh_CN</prop> <prop key="default_encoding">UTF-8</prop> <prop key="number_format">0.##########</prop> <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop> <prop key="classic_compatible">true</prop> <prop key="template_exception_handler">ignore</prop> </props> </property> </bean> </beans> ```
SpringMVC+mybatis运行报错
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring-mybatis.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [F:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\SimulatedMarket\WEB-INF\classes\com\iquant\simulated\mapping\StrategySystemAccountDao.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.iquant.simulated.entity.StrategySystemAccount'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.iquant.simulated.entity.StrategySystemAccount mybatis配置: <!-- 自动扫描 --> <context:component-scan base-package="com.iquant.simulated.*" /> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${datasource.driver}" /> <property name="url" value="${datasource.url}" /> <property name="username" value="${datasource.username}" /> <property name="password" value="${datasource.password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${datasource.initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${datasource.maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${datasource.maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${datasource.minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${datasource.maxWait}"></property> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/iquant/simulated/mapping/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.iquant.simulated.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> 找了一天,实在不知道错哪了,求大神指点一二感激不尽啊!
springmvc+mybatis整合maven项目跳转页面404问题
controller package com.cn.hnust.controller; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import com.cn.hnust.pojo.User; import com.cn.hnust.service.IUserService; @Controller @RequestMapping("/user") public class UserController { @Resource private IUserService userService; @RequestMapping("/showUser") public String toIndex(HttpServletRequest request,Model model){ int userId = Integer.parseInt(request.getParameter("id")); User user = this.userService.getUserById(userId); model.addAttribute("user", user); return "showUser"; } } web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name>Archetype Created Web Application</display-name> <!-- Spring和mybatis的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mybatis.xml</param-value> </context-param> <!-- 编码过滤器 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- Spring监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止Spring内存溢出监听器 --> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <!-- Spring MVC servlet --> <servlet> <servlet-name>SpringMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <!-- 此处可以可以配置成*.do,对应struts的后缀习惯 --> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> <!-- 配置SESSION超时,单位是分钟 --> <session-config> <session-timeout>15</session-timeout> </session-config> </web-app> springmvc-mybatis <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描 --> <context:component-scan base-package="com.cn.hnust" /> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driver}" /> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/cn/hnust/mapping/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.cn.hnust.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans> 大神们帮忙看看哪里出错了,谢谢
spring+springmvc+mybatis环境搭建报错
## # application.xml spring配置文件内容: <!-- 引入jdbc配置文件 --> <context:property-placeholder location="classpath:config/jdbc.properties" /> <!-- 可通过注解控制事务 <tx:annotation-driven />--> <!-- 扫描注解类,否则找不到bean --> <context:component-scan base-package="com.zj.service"></context:component-scan> ## # springmvc-servlet.xml 文件内容: <!-- 启用spring mvc 注解 <context:annotation-config />--> <!-- 设置使用注解的类所在的jar包 --> <context:component-scan base-package="com.zj.controller"></context:component-scan> <!--创建jdbc数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driver}" /> <property name="url" value="${url}" /> <property name="username" value="${uname}" /> <property name="password" value="${pwd}" /> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/zj/dao/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.zj.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- 完成请求和注解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> <!-- 对转向页面的路径解析。prefix:前缀, suffix:后缀 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> ## # LoginController.java package com.zj.controller; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.zj.entity.UserInfo; import com.zj.service.LoginService; @Controller public class LoginController { private LoginService loginService; public LoginService getLoginService() { return loginService; } @Autowired public void setLoginService(LoginService loginService) { this.loginService = loginService; } @RequestMapping("/login") public ModelAndView login(String username,String password, HttpServletRequest request){ return new ModelAndView("login"); } @RequestMapping("/login2") public ModelAndView testLogin2(String username, String password){ UserInfo ui = new UserInfo(); UserInfo result = this.loginService.find(ui); System.out.println("用户名:"+result.getUsername()); // request和response不必非要出现在方法中,如果用不上的话可以去掉 // 参数的名称是与页面控件的name相匹配,参数类型会自动被转换 if (result==null) { return new ModelAndView("loginError"); // 手动实例化ModelAndView完成跳转页面(转发),效果等同于上面的方法返回字符串 }else{ return new ModelAndView("loginSuccess"); } // 采用重定向方式跳转页面 // 重定向还有一种简单写法 // return new ModelAndView("redirect:../index.jsp"); } } } ## # LoginDao.java package com.zj.dao; import com.zj.entity.UserInfo; public interface LoginDao { public UserInfo getUserInfo(UserInfo UserInfo); // public void addUserInfo(UserInfo UserInfo); // // public void updateUserInfo(UserInfo UserInfo); // // public void deleteUserInfo(int UserInfoId); } ## # LoginDao.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.zj.dao.LoginDao"> <select id="getUserInfo" parameterType="com.zj.entity.UserInfo" resultType="com.zj.entity.UserInfo"> SELECT * FROM userinfo WHERE username=#{username} AND password=#{password} </select> </mapper> # 业务实现类LoginServiceImpl.java package com.zj.service.impl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.zj.dao.LoginDao; import com.zj.entity.UserInfo; import com.zj.service.LoginService; @Service("loginService") public class LoginServiceImpl implements LoginService{ private LoginDao loginDao; public LoginDao getUserDao() { return loginDao; } @Autowired public void setUserDao(LoginDao userDao) { this.loginDao = userDao; } public UserInfo find(UserInfo userInfo) { return this.loginDao.getUserInfo(userInfo); } } ## # web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>pro</display-name> <!-- 不拦截静态文件 --> <servlet-mapping> <servlet-name>default</servlet-name> <url-pattern>/js/*</url-pattern> <url-pattern>/css/*</url-pattern> <url-pattern>/imgs/*</url-pattern> <url-pattern>/fonts/*</url-pattern> </servlet-mapping> <!-- Spring配置 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:config/applicationContext.xml</param-value> </context-param> <!-- Spring MVC配置 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:config/springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 配置字符集 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <session-config> <session-timeout>30</session-timeout> </session-config> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> </web-app> # 最后是错误信息: Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.zj.dao.LoginDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 用测试类测试的时候没有问题,一启动tomcat就报错,求看看是哪里的问题,谢谢![![![图片说明](https://img-ask.csdn.net/upload/201512/22/1450795020_467185.png)图片说明](https://img-ask.csdn.net/upload/201512/22/1450795014_103343.png)图片说明](https://img-ask.csdn.net/upload/201512/22/1450794997_116981.png)
springmvc+mybatis调用controller报autowired失败
@service、@controller都写了,@service也写在了实现类而不是接口上,controller中autowired标在了set方法上,单元测试中service和serviceImpl没有问题,但页面调用controller却宝座autowired失败找不到对应service网上找了很多问题我都没有,大概是我检查不够仔细?求大神帮助 添加了一下spring配置和web.xml 异常信息: ``` org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'loginController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void controller.LoginController.setLoginService(service.LoginService); nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [service.LoginService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {} ``` controller ``` @Controller("loginController") @RequestMapping("/User") @Component public class LoginController { private LoginService loginService; public LoginService getLoginService() { return loginService; } @Autowired @Qualifier("loginService") public void setLoginService(LoginService loginService) { this.loginService = loginService; } @RequestMapping(value = "/Login",method=RequestMethod.POST) public String userLogin(HttpSession session,@RequestParam("userid") String userid, @RequestParam("password") String password, @RequestParam("perflg") int perflg,Model model ) { User user = loginService.Login(userid, password, perflg); if (loginService.Login(userid, password, perflg) != null) { session.setAttribute("userid", user.getUserId()); session.setAttribute("username",user.getUserName()); session.setAttribute("permission", user.getPermission()); session.removeAttribute("nologin"); if (perflg == 0) { return "adminhome"; } if (perflg == 1) { return "goverhome"; } if (perflg == 2) { return "compahome"; } if (perflg == 3) { return "consehome"; } if (perflg == 4) { return "peoplehome"; } } model.addAttribute("Lb_alert", "用户名或密码不正确"); session.setAttribute("nologin", "你还没有登陆."); return "forward:/Login"; } } ``` serviceimpl: ``` @Service("loginService") @Transactional @Component public class LoginServiceImpl implements LoginService { private LoginMapper loginMapper; public LoginMapper getLoginMapper() { return loginMapper; } @Autowired public void setLoginMapper(LoginMapper loginMapper) { this.loginMapper = loginMapper; } @Override public User Login(String userid, String password, int perflg){ return loginMapper.Login(userid, password, perflg); } } ``` service ``` public interface LoginService { public User Login(String userid,String password,int perflg); } ``` spring.xml ``` <!-- 引入属性文件 --> <context:property-placeholder location="classpath:mysqldb.properties" /> <!-- 自动注入 --> <context:component-scan base-package="service" /> <!-- 加载properties文件 --> <!-- <bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"> <property name="locations"> <list> <value>classpath:mysqldb.properties</value> </list> </property> </bean> --> ``` spring-mvc.xml ``` <!-- 自动扫描controller包下的所有类,使其认为spring mvc的控制器 --> <context:component-scan base-package="controller" /> <!-- 配置静态资源吗,直接映射到对应的文件夹,不被DispatcherServlet处理,需要重新spring-mvc-3.0.xsd --> <mvc:resources mapping="/images/**" location="/images/" /> <mvc:resources mapping="/js/**" location="/js/" /> <mvc:resources mapping="/css/**" location="/css/" /> <!-- 对转向页面的路径解析。prefix:前缀, suffix:后缀 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" /> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding"> <value>UTF-8</value> </property> <property name="maxUploadSize"> <value>32505856</value><!-- 上传文件 大小限制为31M,31*1024*1024 --> </property> <property name="maxInMemorySize"> <value>4096</value> </property> </bean> ``` spring-mybatis.xml ``` <!-- 配置数据源 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> <!-- 基本属性 url、user、password --> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/electric" /> <property name="username" value="root" /> <property name="password" value="root" /> <property name="initialSize" value="1" /> <property name="minIdle" value="1" /> <property name="maxActive" value="20" /> <property name="maxWait" value="60000" /> <!-- 超过时间限制是否回收 --> <property name="removeAbandoned" value="true" /> <!-- 超过时间限制多长; --> <property name="removeAbandonedTimeout" value="180" /> <!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 --> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 --> <property name="minEvictableIdleTimeMillis" value="300000" /> <!-- 用来检测连接是否有效的sql,要求是一个查询语句--> <property name="validationQuery" value="SELECT 1" /> <!-- 申请连接的时候检测 --> <property name="testWhileIdle" value="true" /> <!-- 申请连接时执行validationQuery检测连接是否有效,配置为true会降低性能 --> <property name="testOnBorrow" value="false" /> <!-- 归还连接时执行validationQuery检测连接是否有效,配置为true会降低性能 --> <property name="testOnReturn" value="false" /> </bean> <!-- Mybatis文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 映射文件路径 --> <property name="mapperLocations" value="classpath:mapping/*.xml" /> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="mapper" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> </bean> <!-- 事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> ``` web.xml ``` <display-name>Archetype Created Web Application</display-name> <!-- Spring和mybatis的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value> </context-param> <!-- spring mvc servlet --> <servlet> <description>spring mvc servlet</description> <servlet-name>springMvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <description>spring mvc 配置文件</description> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> <!-- 配置session超时时间,单位分钟 --> <session-config> <session-timeout>15</session-timeout> </session-config> ```
Springmvc-myBatis配置文件不解析数据库的properties文件
初次配置SpringMVC+myBatis,使用properties来存储数据库的相关数据,并在xml中读取出来,写入dataSource中。 这时发现报错:Cannot load JDBC driver class ${jdbc.driverClassName} java.lang.ClassNotFoundException: ${driverClass} 按理说没有jar包,应该报错Cannot load JDBC driver class com.mysql.jdbc.Drive ``` <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driverClass}"/> <property name="url" value="${jdbcUrl}"/> <property name="username" value="${username}"/> <property name="password" value="${password}"/> ``` 如果像上述这样就会报错,properties文件无误。 如果改成这样: ``` <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/Lettiy"/> <property name="username" value="root"/> <property name="password" value="root"/> ``` 便可以正常访问,所以怀疑时properties文件没有正常导入 在xml最开始已经引入了该properties,路径正确,可以通过ctrl直接打开 ``` <context:property-placeholder location="classpath:jdbc.properties"/> ``` 现在贴出全部的xml ``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <context:property-placeholder location="classpath:jdbc.properties"/> <!-- 扫描注解Bean --> <context:component-scan base-package="*.service"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 开启AOP监听 只对当前配置文件有效 --> <aop:aspectj-autoproxy expose-proxy="true"/> <!--myBatis 配置--> <!-- 第一种方式:加载一个properties文件 --> <!--<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">--> <!--<property name="location" value="classpath:resource/jdbc.properties"/>--> <!--</bean>--> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driverClass}"/> <property name="url" value="${jdbcUrl}"/> <property name="username" value="${username}"/> <property name="password" value="${password}"/> </bean> <!-- mybatis和spring完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="configLocation" value="classpath:mybatis-spring.xml" /> <property name="dataSource" ref="dataSource"/> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:datamapper/**/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="login.repository"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <tx:annotation-driven transaction-manager="transactionManager"/> <!--repository 注解扫描--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="annotationClass" value="org.springframework.stereotype.Repository"/> <property name="basePackage" value="login.repository"/> <property name="sqlSessionFactory" ref="sqlSessionFactory"/> </bean> </beans> ```
spring,springMVC,mybatis三大框架整合
debug时进入controller中的List<ItemsCustom> list=itemsService.findItemsList(null) 报空指针异常 代码如下: controller类: package com.itcast.ssm.controller; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.itcast.ssm.po.ItemsCustom; import com.itcast.ssm.service.ItemsService; import com.itcast.ssm.service.impl.ItemsServiceImpl; @Controller public class ItemsController { @Resource ItemsService itemsService; @RequestMapping("/queryItems") public ModelAndView queryItems()throws Exception{ List<ItemsCustom> list=itemsService.findItemsList(null); ModelAndView modelAndView =new ModelAndView(); modelAndView.addObject("itemsList",list); modelAndView.setViewName("items/itemsList"); return modelAndView; } } Service接口: package com.itcast.ssm.service; import java.util.List; import com.itcast.ssm.po.ItemsCustom; import com.itcast.ssm.po.ItemsQueryVo; public interface ItemsService { public List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo)throws Exception; } Service实现: package com.itcast.ssm.service.impl; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Service; import com.itcast.ssm.mapper.ItemsMapperCustom; import com.itcast.ssm.po.ItemsCustom; import com.itcast.ssm.po.ItemsQueryVo; import com.itcast.ssm.service.ItemsService; @Service public class ItemsServiceImpl implements ItemsService { @Resource ItemsMapperCustom itemsMapperCustom; public List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo) throws Exception { return itemsMapperCustom.findItemsList(itemsQueryVo); } } mapper类: package com.itcast.ssm.mapper; import java.util.List; import com.itcast.ssm.po.ItemsCustom; import com.itcast.ssm.po.ItemsQueryVo; public interface ItemsMapperCustom { public List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo)throws Exception; } mapper.xml: <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.itcast.ssm.mapper.ItemsMapperCustom"> <sql id="items_test"> <if test="ItemsCustom!=null"> <if test="ItemsCustom.name!=null and ItemsCustom.name!=' ' "> items.name like '%${ItemsCustom.name}%' </if> </if> </sql> <select id="findItemsList" parameterType="com.itcast.ssm.po.ItemsQueryVo" resultType="com.itcast.ssm.po.ItemsCustom"> select * from items <where> <include refid="items_test" /> </where> </select> </mapper> sqlMapConfig.xml配置: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <typeAliases> <package name="com.itcast.ssm.po" /> </typeAliases> </configuration> applicationContext-do.xml: <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 扫描配置文件 --> <context:property-placeholder location="classpath:db.properties" /> <!-- 连接数据库 --> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.name}" /> <property name="password" value="${jdbc.psw}" /> </bean> <!-- sqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 连接池 --> <property name="dataSource" ref="dataSource" /> <!-- 加载mybatis的全局配置文件 --> <property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml" /> </bean> <!-- mapper扫描 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.itcast.ssm.mapper" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> </bean> </beans> 事务控制: <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 事务管理 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 通知 --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="insert*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="edit*" propagation="REQUIRED" /> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="new*" propagation="REQUIRED" /> <tx:method name="set*" propagation="REQUIRED" /> <tx:method name="remove*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="change*" propagation="REQUIRED" /> <tx:method name="get*" propagation="SUPPORTS" read-only="true" /> <tx:method name="find*" propagation="SUPPORTS" read-only="true" /> <tx:method name="load*" propagation="SUPPORTS" read-only="true" /> <tx:method name="*" propagation="SUPPORTS" read-only="true" /> </tx:attributes> </tx:advice> <aop:config> <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.itcast.ssm.service.impl.*.*(..))" /> </aop:config> </beans> spring配置: <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context/spring-context.xsd"> <bean class="com.itcast.ssm.controller.ItemsController"/> //为何使用组键扫描不到controller,只能单个配置 <!-- <context:component-scan base-package="com.itcast.ssm.controller" /> --> <mvc:annotation-driven /> <!-- 视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </beans> web.xml配置: <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name>wjnt</display-name> <!-- 加载spring容器 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/classes/spring/applicationContext-*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>springMvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/springmvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springMvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
SpringMVC+Mybatis 出现新增数据偶尔查不到的情况。
情况1: 重启服务后,新增数据的插入没有问题,数据库中能查到,但是项目中查询的结果是浮动的, 即偶尔查询正确,偶尔会出现本次重启服务后新增数据没查到,仅查询到原有数据(重启服务之前 已有的数据)的情况; 情况2: 在重启服务后,原有的数据不会出现查询时丢数据的情况; 情况3: 已上现象为整个项目中普遍存在的情况,即任意表都会出现上述情况; 情况4: 上述查询问题即使在不存在事务的简单查询中也存在; 附示例: 以下为筛选日志结果: 数据库记录数为3条,查询结果为2和3,并且一直持续存在; 、、、 [ERROR]-[Thread: 201712022233077548st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 20171202223308468Dst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233088862st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233093165st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223309843Fst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233102741st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233109243st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233116034st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233123791st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233130438st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233136847st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233144678st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223314845Cst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233152237st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223315588Est.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233159568st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 20171202223316739Bst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233173903st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233180297st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 20171202223318843Cst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233194784st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233201245st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223320520Fst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233210862st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233214528st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223321817Cst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233224558st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 20171202223323240Cst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 20171202223323909Dst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233245542st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233253420st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233259899st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223326365Fst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233267379st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233271049st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223327605Est.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233282475st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233288928st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233298680st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 20171202223330510Dst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233311501st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233319217st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223332300Ast.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 201712022233326794st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223333046Dst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===2 [ERROR]-[Thread: 20171202223333414Cst.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233342048st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233348460st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233354911st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 [ERROR]-[Thread: 201712022233362800st.ParameterRequest.printTheResponsePara()]: ===Para:[1, 2]===3 、、、 以下为查询结果为2时的查询sql 、、、 [20171202223331921753A0] [DEBUG] org.mybatis.spring.SqlSessionUtils - Releasing transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@82fbac2] [20171202223331921753A0] [DEBUG] org.mybatis.spring.SqlSessionUtils - Fetched SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@82fbac2] from current transaction [20171202223331921753A0] [DEBUG] c.T.d.s.w.o.O.getOrdersForMulti - ==> Preparing: select * from `orders` WHERE `member_id`= ? and `order_state` IN ( ? , ? ) order by id desc limit ?,? [20171202223331921753A0] [DEBUG] c.T.d.s.w.o.O.getOrdersForMulti - ==> Parameters: 24(String), 1(Integer), 2(Integer), 0(Integer), 10(Integer) [20171202223331921753A0] [DEBUG] c.T.d.s.w.o.O.getOrdersForMulti - <== Total: 2 、、、 以下为查询结果为3时的查询sql 、、、 [20171202223333414C2A60] [DEBUG] o.s.jdbc.datasource.DataSourceUtils - Fetching JDBC Connection from DataSource [20171202223333414C2A60] [DEBUG] o.m.s.t.SpringManagedTransaction - JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@708060c1] will not be managed by Spring [20171202223333414C2A60] [DEBUG] c.T.d.s.w.o.O.getOrdersForMulti - ==> Preparing: select * from `orders` WHERE `member_id`= ? and `order_state` IN ( ? , ? ) order by id desc limit ?,? [20171202223333414C2A60] [DEBUG] c.T.d.s.w.o.O.getOrdersForMulti - ==> Parameters: 24(String), 1(Integer), 2(Integer), 0(Integer), 10(Integer) [20171202223333414C2A60] [DEBUG] c.T.d.s.w.o.O.getOrdersForMulti - <== Total: 3 [20171202223333414C2A60] [DEBUG] org.mybatis.spring.SqlSessionUtils - Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@3103e6df] [20171202223333414C2A60] [DEBUG] o.s.jdbc.datasource.DataSourceUtils - Returning JDBC Connection to DataSource [20171202223333414C2A60] [DEBUG] org.mybatis.spring.SqlSessionUtils - Creating a new SqlSession [20171202223333414C2A60] [DEBUG] org.mybatis.spring.SqlSessionUtils - SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@222f700b] was not registered for synchronization because synchronization is not active 、、、
使用junit测试springMVC和mybatis项目出现autowired field
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cn.com.qzinfo.test.example.ExampleDaoTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.com.qzinfo.example.dao.ExampleDao cn.com.qzinfo.test.example.ExampleDaoTest.exampleDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [cn.com.qzinfo.example.dao.ExampleDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1064) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:374) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:110) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:333) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:220) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:301) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:303) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41) at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:220) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private cn.com.qzinfo.example.dao.ExampleDao cn.com.qzinfo.test.example.ExampleDaoTest.exampleDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [cn.com.qzinfo.example.dao.ExampleDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:507) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283) ... 26 more Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [cn.com.qzinfo.example.dao.ExampleDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. 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