使用springmvc注解报Forecast is not mapped

添加数据都能成功,就是查询是报错
进入query
2015-1-9 10:50:33 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet springMVC threw exception
org.hibernate.hql.internal.ast.QuerySyntaxException: Forecast is not mapped
at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:189)
at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:109)
at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:95)
at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:331)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3633)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3522)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:706)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:562)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:299)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:247)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:278)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:206)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:158)
at org.hibernate.engine.query.spi.HQLQueryPlan.(HQLQueryPlan.java:126)
at org.hibernate.engine.query.spi.HQLQueryPlan.(HQLQueryPlan.java:88)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:190)
at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:301)
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1796)
at com.lesogo.dao.ForecastDao.queryForecast(ForecastDao.java:44)
at com.lesogo.dao.ForecastDao$$FastClassBySpringCGLIB$$76bb1b77.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:711)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644)
at com.lesogo.dao.ForecastDao$$EnhancerBySpringCGLIB$$2d6f7fda.queryForecast()
at com.lesogo.controller.AirController.queryForecast(AirController.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
1.dao层
@Repository
public class ForecastDao {
@Autowired
private SessionFactory sessionFactory;
//添加预报信息
public boolean addForecast(Forecast forecast)
{

System.out.println("进入add");
Session session=sessionFactory.openSession();
Transaction t=session.beginTransaction();
session.save(forecast);
t.commit();
session.close();
return false;
}
//查询预报信息
public List queryForecast()
{
System.out.println("进入query");
Session session=sessionFactory.openSession();
Transaction t=session.beginTransaction();
//HQL查询语句
String hql="from Forecast";
Query query=session.createQuery(hql);
List list=query.list();
t.commit();
session.close();
return list;
}

实体
@Entity(name="forecast")

@Resource
public class Forecast implements Serializable {
private int forecastId;//预报编号
private String forecastArea;//预报区县
private String forecastTime;//预报时间
private String forecastAir;//天气
private int temperature;//温度
private int humidity;//湿度
private float windSpeed;//风速
private String windDirection;//风向
private float capacity;//降雨量
private float totalCould;//总云量
private float lowCapacity;//低动量
@Id
@GeneratedValue

public int getForecastId() {
    return forecastId;
}
public void setForecastId(int forecastId) {
    this.forecastId = forecastId;
}
@Column(name="forecast_area")
public String getForecastArea() {
    return forecastArea;
}
public void setForecastArea(String forecastArea) {
    this.forecastArea = forecastArea;
}

@Column(name="forecast_time")
public String getForecastTime() {
    return forecastTime;
}
public void setForecastTime(String forecastTime) {
    this.forecastTime = forecastTime;
}

1个回答

最后发现是maven里面配置了这个才导致这个错误:

    <!--<groupId>org.springframework</groupId> -->
    <!--<artifactId>spring-jdbc</artifactId> -->
    <!--<version>${org.springframework-version}</version> -->
    <!--</dependency> -->
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nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\apache-tomcat-7.0.67\wtpwebapps\springDemo2\WEB-INF\classes\org\yzl\controller\HelloController.class]; nested exception is java.lang.IllegalArgumentException at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:290) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242) at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84) at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1438) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1428) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:195) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:139) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:108) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451) Caused by: org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\apache-tomcat-7.0.67\wtpwebapps\springDemo2\WEB-INF\classes\org\yzl\controller\HelloController.class]; nested exception is java.lang.IllegalArgumentException at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:56) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:80) at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:266) ... 39 more Caused by: java.lang.IllegalArgumentException at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:53) ... 42 more 五月 08, 2017 4:25:45 下午 org.apache.catalina.core.ApplicationContext log 严重: StandardWrapper.Throwable org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [D:\apache-tomcat-7.0.67\wtpwebapps\springDemo2\WEB-INF\classes\org\yzl\controller\HelloController.class]; nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\apache-tomcat-7.0.67\wtpwebapps\springDemo2\WEB-INF\classes\org\yzl\controller\HelloController.class]; nested exception is java.lang.IllegalArgumentException at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180) hableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451) at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:602) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:521) at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:462) at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) at javax.servlet.GenericServlet.init(GenericServlet.java:158) at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5327) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5617) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\apache-tomcat-7.0.67\wtpwebapps\springDemo2\WEB-INF\classes\org\yzl\controller\HelloController.class]; nested exception is java.lang.IllegalArgumentException at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:56) ... 39 more Caused by: java.lang.IllegalArgumentException at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:53) ... 42 more 五月 08, 2017 4:25:45 下午 org.apache.catalina.core.StandardContext loadOnStartup 严重: Servlet [springmvc] in web application [/springDemo2] threw load() exception java.lang.IllegalArgumentException at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.asm.ClassReader.<init>(Unknown Source) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:53) ``` 求好心人帮忙解决下.非常感谢!

springmvc的全注解配置(完全不用xml)框架

最近在看spring实战的第五章springmvc,了解到了在使用springmvc时,我们原来的做法是需要将dispatcherservlet配置在xml中,而如今我们可以舍弃这种做法而选择配置在java类中(即完全不需要xml了)。但我在实现的时候按照书上的源码打,最后想在web页面中验证springmvc却开不开jsp动态网页,报404错误(是不是哪里地方需要启动这个java类而我却没有启动呢)。求高手指点,下面将po出我的源码 //这个类替代了原先的dispatcherservlet public class SpittrWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer{ @Override protected Class<?>[] getRootConfigClasses() { // TODO Auto-generated method stub return new Class<?>[]{RootConfig.class}; } @Override protected Class<?>[] getServletConfigClasses() { // TODO Auto-generated method stub return new Class<?>[]{WebConfig.class}; } @Override protected String[] getServletMappings() { // TODO Auto-generated method stub return new String[]{"/"}; } } //这个类是由dispatcherservlet加载应用上下文 @Configuration @EnableWebMvc @ComponentScan("spittr.web") public class WebConfig extends WebMvcConfigurerAdapter{ @Bean public ViewResolver viewResolver(){ InternalResourceViewResolver resolver=new InternalResourceViewResolver(); resolver.setPrefix("/WEB-INF/"); resolver.setSuffix(".jsp"); resolver.setExposeContextBeansAsAttributes(true); return resolver; } public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer){ configurer.enable(); } } //这个类是由ContextLoaderListener加载应用上下文 @Configuration @ComponentScan(basePackages={"spittr"},excludeFilters={@Filter(type=FilterType.ANNOTATION,value=EnableWebMvc.class)}) public class RootConfig { } 配置完这三个类之后我就在项目目录WEB-INF下面创建了index页面,然而却打不开这个页面,报404,去掉之前那三个类就可以正常运行这个页面。希望高手指出错误在哪里

SpringMVC中注解事物注解

@Transational(value="",rollbackFor = Exception.class)中的value属性是什么意思,有什么用呢

SpringMVC+ajax上传文件+提交表单数据报错The current request is not a multipart request

AJAX var commercialName=$("#commercialName").val() var commerciaPhone=$("#commerciaPhone").val() var commerciaSite=$("#commerciaSite").val() console.log(commercialName) var file=document.getElementById('file').files var formData=new FormData() formData.append("file",file[0]) $.ajax({"url":"/systemController/merchantController/contact", "encType": 'multipart/form-data', "processData": false, "contentType":false, "data":{"file":formData,"commercialName":commercialName,"commerciaPhone":commerciaPhone, "commerciaSite":commerciaSite}, "type":"post", "dataType":"json", "success":... ``` JAVA ``` @RequestMapping(value = "contact" ,method = RequestMethod.POST) @ResponseBody public Dto contact( MultipartFile file, DbBusinessInformation businessInformation, HttpServletRequest request) ``` ``` 也找了很多方法,还是没办法解决

servlet错误The requested resource is not available

初学jsp,servlet的错误, servlet: import java.io.*; import javax.servlet.*; import javax.servlet.http.*; public class HelloWorld extends HttpServlet{ public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException{ PrintWriter out = response.getWriter(); out.println("Hello World!"); } } web.xml: <?xml version="1.0" encoding="ISO-8859-1"?> <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <web-app 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" version="2.5"> <display-name>Welcome to Tomcat</display-name> <description> Welcome to Tomcat </description> <servlet> <servlet-name>HelloWorld</servlet-name> <servlet-class>HelloWorld</servlet-class> </servlet> <servlet-mapping> <servlet-name>HelloWorld</servlet-name> <url-pattern>HelloWorld</url-pattern> </servlet-mapping> </web-app> 文件位置: ![图片说明](https://img-ask.csdn.net/upload/201506/07/1433652632_362213.jpg) 错误信息: ![图片说明](https://img-ask.csdn.net/upload/201506/07/1433652719_276680.jpg)

SpringMVC使用注解解析json总是报415错误

用HTML访问这个总是报415错, 这是Spring 配置文件 <?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" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!--指明 controller 所在包,并扫描其中的注解--> <context:component-scan base-package="com.ch.controller"/> <!-- 静态资源(js、image等)的访问 --> <mvc:default-servlet-handler/> <!-- 开启注解 --> <mvc:annotation-driven /> <!--ViewResolver 视图解析器--> <!--用于支持Servlet、JSP视图解析--> <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/WEB-INF/pages/"/> <property name="suffix" value=".jsp"/> </bean> <!-- 表示JPA Repository所在的包 --> <!-- 链接到persistence.xml --> <!-- 事务管理 --> <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/bookshop"></property> <property name="username" value="root"/> <property name="password" value="689571"/> <!-- 数据库连接池保持的最小连接数 --> <property name="minIdle" value="5"/> <!-- 数据库连接池保持的最大连接数 --> <property name="maxIdle" value="30"/> <!-- 当数据库连接因为某种原因断掉之后,再重新从连接池中拿另外一个连接时实际上这个连接可能 已经无效,所以为了确保所拿到的连接全都有效需要在获取连接,返回连接以及连接空闲时进行 有效性验证 下面3个设置为ture时进行验证,默认为false --> <!-- 取得连接时是否进行有效性验证 --> <property name="testOnBorrow" value="true"/> <!-- 返回连接时是否进行有效性验证 --> <property name="testOnReturn" value="true"/> <!-- 连接空闲时是否进行有效性验证 --> <property name="testWhileIdle" value="true"/> </bean> <!-- 设置Hibernate sessionFactory --> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource" ref="datasource"/> <property name="packagesToScan" value="com.ch.model"/> <property name="hibernateProperties"> <props> <prop key="dialect">org.hibernate.dialect.MySQLInnoDBDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> <prop key="hibernate.transaction.coordinator_class">jdbc</prop> </props> </property> </bean> <!-- 设置Spring事务 --> <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"/> </bean> <!--启动spring事务注解功能--> <tx:annotation-driven transaction-manager="txManager"/> <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter"/> </list> </property> </bean> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>application/json;charset=UTF-8</value> <value>text/html;charset=UTF-8</value> </list> </property> </bean> </beans> WEB配置文件 <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <display-name>SpringMVCDemo Web Application</display-name> <servlet> <servlet-name>mvc-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>mvc-dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <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> </web-app> 所有的包和依赖 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.ch123</groupId> <artifactId>myspringtest</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>bookahop Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <spring.version>4.2.0.RELEASE</spring.version> <spring-data.version>1.2.0.RELEASE</spring-data.version> </properties> <dependencies> <!-- hibernate 4.0 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.1.0</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.5.3</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.1.0</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-jpa</artifactId> <version>${spring-data.version}</version> </dependency> <dependency> <groupId>org.hibernate.javax.persistence</groupId> <artifactId>hibernate-jpa-2.0-api</artifactId> <version>1.0.0.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.2.2.Final</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> </dependencies> <build> <finalName>bookshop</finalName> </build> </project> 控制器 package com.ch.controller; import com.ch.bean.OBeanBase; import com.ch.bean.userinfo.userloginIbean; import com.ch.model.UsersEntity; import com.ch.service.UserService; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.*; /** * Created by 57183 on 2016/3/29. */ @Controller public class MainController { @RequestMapping(value = "/my", method = RequestMethod.POST) public String index(@RequestParam String userID,String password) { UsersEntity use=new UsersEntity(userID,password); UserService us = new UserService(); if (us.checklogin(use)) { return "index"; } else { return "err"; } } HTML代码: <html> <head> <title>Spring Hello World!</title> </head> <body> <form action="http://localhost:8080/my" method="POST" enctype="application/x-www-form-urlencoded"> 用户名<input type="text" name="userID"> 密码<input type="password" name="password"> <input type="submit" value="提交"> </body> </html> 求解为什么一直是415错误,网上的方法都试过了依旧没用。

初学Spring aop ,遇到了object is not an instance of declaring class的问题

CompareInterceptor类 package com.spring.advice; import org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation; public class CompareInterceptor implements MethodInterceptor { @Override public Object invoke(MethodInvocation invocation) throws Throwable { // TODO Auto-generated method stub Object result = null; String sname = invocation.getArguments()[0].toString(); if(sname.equals("forever")){ result = invocation.proceed(); } else{ System.out.println("此学生是:"+sname+",而不是forever"); } return result; } } Test 类 package com.spring.test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.spring.aop.Istudent; public class Test { public static void main(String args[]){ ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); Istudent st = (Istudent)context.getBean("student"); st.addStudent("forever"); } } applicationContext.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <bean id="beforeAdvice" class="com.spring.advice.BeforeAdvice" /> <bean id="afterAdvice" class="com.spring.advice.AfterAdvice" /> <bean id="compareInterceptor" class="com.spring.advice.CompareInterceptor" /> <bean id="studentTarget" class="com.spring.aop.StudentImpl" /> <bean id="student" class="org.springframework.aop.framework.ProxyFactoryBean" > <property name="proxyInterfaces"> <value>com.spring.aop.Istudent</value> </property> <property name="interceptorNames"> <list> <value>beforeAdvice</value> <value>afterAdvice</value> <value>compareInterceptor</value> </list> </property> <property name="target"> <value>studentTarget</value> </property> </bean> </beans> 只要不是参数不是forever,一切都正常。。。求帮助!

springmvc 使用注解的问题

jdk1.8,tomcat7,spring3.2.0 简单写了个controller,不用注解一切正常,一开注解就报错 目录树如下 ![图片说明](https://img-ask.csdn.net/upload/201510/14/1444787416_426761.png) springxml如下 ![图片说明](https://img-ask.csdn.net/upload/201510/14/1444787467_384686.png) 报错信息如下 ``` org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [C:\xampp\tomcat\wtpwebapps\springDemo\WEB-INF\classes\org\com\Controller\TestController.class]; nested exception is java.lang.IllegalArgumentException org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:281) org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242) org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84) org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73) org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1435) org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1425) org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:184) org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:140) org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:111) org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493) org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390) org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334) org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302) org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174) org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209) org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180) org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125) org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94) org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:131) org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537) org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451) org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:647) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:598) org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:661) org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:517) org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:458) org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:138) javax.servlet.GenericServlet.init(GenericServlet.java:158) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) ``` jdk16.17.18三个版本都换过,感觉还是版本问题

SpringMVC自动注解问题

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'alarmDaoImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.ucloudlink.oss.cache.dao.MongoDBDao com.ucloudlink.oss.alarmservice.dao.alarm.AlarmDaoImpl.mongoDBDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ucloudlink.oss.cache.dao.MongoDBDao] 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:292) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) at com.ucloudlink.oss.alarmservice.Main.main(Main.java:20) Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.ucloudlink.oss.cache.dao.MongoDBDao com.ucloudlink.oss.alarmservice.dao.alarm.AlarmDaoImpl.mongoDBDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ucloudlink.oss.cache.dao.MongoDBDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289) ... 13 more Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.ucloudlink.oss.cache.dao.MongoDBDao] 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.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1100) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480) ... 15 more 求大神解决方法,我都自动注入了额

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注解版SpringMVC写完后,浏览器访问是404,求解

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