Spring @Configuration注解

在Spring中使用@configuration注解进行bean声明时候遇到一个疑惑:
//这是一个父类

public class Parent {

public Parent() {
    System.out.println("parent...");
}

}

//子类继承父类

public class Son extends Parent{

public Son() {
    super();
    System.out.println("son...");
}

}

//进行配置

@Configuration
public class AnnotationConfig {

@Bean
public Son son(){
    return new Son();
}

    @Bean
public Parent parent(){
    return new Parent();
}   

}
在单元测试用中进行使用:

ApplicationContext annotationContext = new AnnotationConfigApplicationContext("com.jerry");

运行的结果是:
parent...
parent...
son...
为什么不是:
parent...
son...
parent...
另外,如果在Parent类加上@Scope("protoptype")注解,结果又变成:
parent init...
son...

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spring 注解 空指针错误
先贴异常吧: [code="java"]cn.buct.inteWeb.user.web.LoginAction.login(LoginAction.java:52) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) java.lang.reflect.Method.invoke(Unknown Source) com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:440) com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:279) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242) com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:163) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:249) org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:148) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:93) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:128) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:104) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138) com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:148) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:128) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176) com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52) org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468) org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77) org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:76) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Unknown Source)[/code] 下面是代码 [code="java"] package cn.buct.inteWeb.user.web; import javax.annotation.Resource; import org.apache.commons.lang.StringUtils; import cn.buct.inteWeb.common.web.AbstractAjaxAction; import cn.buct.inteWeb.user.entity.User; import cn.buct.inteWeb.user.service.UserManager; import cn.buct.inteWeb.Constants; import cn.buct.inteWeb.SessionHolder; public class LoginAction extends AbstractAjaxAction <User,Long>{ private static final long serialVersionUID = 1L; private UserManager userManager; private static final String USER_LOGIN = "index"; private String userName; private String password; private String message; public String login() { String userName2 = getRequest().getParameter("userName"); System.out.println("userName=" + userName2); String password2 = getRequest().getParameter("password"); System.out.println("password=" + password2); System.out.println(userManager); /** * 判断当前是否已经登录 */ if(SessionHolder.isLogined(getRequest())) { return USER_LOGIN; } /** * 登录验证码显示控制begin */ long count = 1; if (null != getRequest().getSession() && null != getRequest().getSession().getAttribute("count")) { count = ((Long) getRequest().getSession().getAttribute("count")) + 1; } getRequest().getSession().setAttribute("count", count); if (StringUtils.isBlank(userName) && StringUtils.isNotBlank(getRequest().getParameter("userName"))) { userName = getRequest().getParameter("userName").trim(); } // 判断用户是否存在 User user = userManager.getByName(userName); if (user == null) { message = Constants.LOGIN_USER_ERROR_MSG; return USER_LOGIN; } return null; } public String loginInput() { return USER_LOGIN; } @Override protected BaseEntityManager<User, Long> getManager() { // TODO Auto-generated method stub return null; } @Override protected Long getId() { // TODO Auto-generated method stub return null; } public void setUserManager(UserManager userManager) { this.userManager = userManager; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } } [/code] web.xml文件: [code="xml"] <?xml version="1.0" encoding="UTF-8"?> <web-app id="contact" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>test</display-name> <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> <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath*:spring/applicationContext.xml classpath*:spring/modules/applicationContext*.xml classpath*:spring/modules/applicationContext-dnsis-soa.xml <!-- classpath*:spring/modules/applicationContext-quartz-client.xml --> </param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <!-- encodingFilter--> <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> <!-- struts2Filter--> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter </filter-class> <init-param> <param-name>actionPackages</param-name> <param-value>cn.buct</param-value> </init-param> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>*.jsp</url-pattern> </filter-mapping> <session-config> <session-timeout>20</session-timeout> </session-config> </web-app> [/code] struts.xml [code="xml"] <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <constant name="struts.custom.i18n.resources" value="messageResource" /> <constant name="struts.multipart.maxSize" value="1000000000" /> <!-- <constant name="struts-devMode" Value="true"> --> <constant name="struts.devMode" value="true"/> <package name="user" extends="struts-default" namespace="/user"> <action name="Login" class="cn.buct.inteWeb.user.web.LoginAction"> <result name="index">/view/user-login.jsp</result> </action> </package> </struts> [/code] applicationContext.xml [code="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:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd" default-lazy-init="true" default-autowire="byName"> <description></description> <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" lazy-init="false"> <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_NEVER" /> <property name="ignoreResourceNotFound" value="true" /> <property name="order" value="1" /> <property name="ignoreUnresolvablePlaceholders" value="true" /> <property name="locations"> <list> <value>classpath:application.properties</value> </list> </property> </bean> <!-- 使用annotation 自动注册bean,并检查@Required,@Autowired的属性已被注入 --> <context:component-scan base-package="cn.knet" /> <!-- 使用aop定义事务 --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <aop:config proxy-target-class="true"> <aop:advisor pointcut="execution(* cn.knet.dnsis.*.service.*.*(..))" advice-ref="txAdvice" /> </aop:config> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <tx:method name="get*" read-only="true" /> <tx:method name="find*" read-only="true" /> <tx:method name="select*" read-only="true" /> <tx:method name="*" /> </tx:attributes> </tx:advice> <bean class="org.springframework.beans.factory.annotation.RequiredAnnotationBeanPostProcessor" /> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <property name="maxActive" value="30" /> </bean> <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean"> <property name="configLocation" value="classpath:ibatis/SqlMapConfig.xml" /> </bean> <bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate" /> <!-- freemarker template engine --> <bean id="templateEngine" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"> <property name="freemarkerSettings"> <props> <prop key="template_update_delay">0</prop> <prop key="default_encoding">UTF-8</prop> <prop key="locale">zh_CN</prop> </props> </property> </bean> </beans> [/code] 麻烦多指教了。
Spring 下websock注解方式注册,chrome连接一直报404错误
Spring4.0,用的是注解配置类的方式注册websocket,chrome一直报404错误,后台代码如下@Configuration @EnableWebMvc @EnableWebSocket public class WebSocketConfig implements WebSocketConfigurer { @Override public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { registry.addHandler(new WebSocketHander(),"/new").addInterceptors(new HandshakeInterceptor()); --- 前台代码: if ('WebSocket' in window) { websocket = new WebSocket("ws://localhost:8080/MyWebSocket/new"); ----- 请问哪里写错了呢!第一次用!
spring注解无法读取配置文件的属性,时间可以读取,求大神帮忙看看
//运用注解读取配置文件 @Component @ComponentScan @Configuration @PropertySource({ "classpath:/info.properties" }) public class PropertiesResolve { private static Logger logger = Logger.getLogger(PropertiesResolve.class.getName()); //把配置文件的属性值直接注解到类的属性里面 @Value("${mongodb.url}") //url static String mongodbUrl; @Value("${mongodb.name}") //name static String mongodbName; @Value("${mongodb.password}") //password static String mongodbPassword; @Bean public static PropertySourcesPlaceholderConfigurer propertyConfigInDev() { return new PropertySourcesPlaceholderConfigurer(); } @Scheduled(cron = "${time1}") public static void test1(){ logger.info("1111111111111111111111111"); System.out.println("mongodbUrl的值: "+mongodbUrl); System.out.println("mongodbName的值: "+mongodbName); System.out.println("mongodbPassword的值: "+mongodbPassword); } //************************************************************************************* @Autowired private static Environment env; @Scheduled(cron = "${time2}") public static void test2(){ logger.info("2222222222222222222222"); System.out.println(env.getProperty("mongodb.url")); System.out.println(env.getProperty("mongodb.name")); System.out.println(env.getProperty("mongodb.password")); } } 配置文件内容: ##mongodbUrl## mongodb.url = 127.0.0.1 ##mongodbName## mongodb.name= xs@tt.cok ##mongodbPassword## mongodb.password= 1245sdsh ##time## time1 = 0/20 * * * * ? time2 = 0/58 * * * * ? test1方法输出: mongodbUrl的值: null mongodbName的值: null mongodbPassword的值: null test2方法直接报错,错误为:java.lang.NullPointerException, 就算是static String mongodbUrl属性去掉static也是一样的错误,求大神帮忙
spring是如何保证注入的bean和方法调用得来的对象是一致的呢?求解
``` @Bean public Object o1() { System.out.println("o1"); return new Object(); } @Bean public Object o2(Object o1) { System.out.println(new Object() == new Object()); System.out.println("注入的对象和直接调用的一样吗?" + (o1 == o1())); return new Object(); } ``` 在springboot下的输出: o1 false 注入的方法和调用的一样吗?true 我的想法:初始化o1, 初始化o2注入o1, 在o2内部调用o1得到一个新的object, 比较得false 还是自己想到了,最后只有一种方法可以拦截上面的o1调用,那就是代理 下面是用@Configuration 注解的 BeanTest的代理类 class spring.BeanTest$$EnhancerBySpringCGLIB$$310664fb
SpringCloud Feign 替换默认配置,不加 @Configuration怎么理解?
### SpringCloud Feign 替换默认配置,不加 @Configuration怎么理解? ### 在学习Feign的时候有看到替换默认配置要么把配置类创建到启动类外层目录,这样要加@Configuration注解,要么是放在同级或下级目录,此时不加@Configuration。 ### 但是实际实验结果表示,放在同级或下级目录,不加@Configuration,则会报错,或者不生效。 ### 那么该怎么理解官方文档的这段话呢? > FooConfiguration不需要使用@Configuration注释。但是,如果是,则请注意将其从任何@ComponentScan中排除,否则将包含此配置,因为它将成为feign.Decoder,feign.Encoder,feign.Contract等的默认来源,指定时。这可以通过将其放置在任何@ComponentScan或@SpringBootApplication的单独的不重叠的包中,或者可以在@ComponentScan中明确排除。 ### 相关代码 ``` java // 启动类在com.vvlin包下 package com.vvlin.config; ... // 这里注释掉之后,不会在控制台打印,说明方法未调用 // 不注释则正常 // @Configuration public class FeignUploadFileConfiguration { @Bean public Encoder feignFormEncoder() { System.err.println("FeignUploadFileConfiguration.feignFormEncoder()"); return new springFormEncoder(); } } ```
spring2.5事务注解
用到的是spring2.5的注解方式配置事务。 在接口中加入@Transactional这个就会报错,否则正常。 配置文件。 [code="java"]<?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"> <bean id="db-properties" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" p:ignoreUnresolvablePlaceholders="true"> <property name="locations"> <list> <value>classpath:DataBase.properties </value> </list> </property> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> <!-- 配置同一个数据源 --> <bean id="daoTemplate" abstract="true" lazy-init="true"> <property name="dataSource" ref="dataSource" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName"> <value>${db.driver}</value> </property> <property name="url"> <value>${db.url}</value> </property> <property name="username"> <value>${db.username}</value> </property> <property name="password"> <value>${db.password}</value> </property> <property name="initialSize"> <value>${db.pool.initial}</value> </property> <property name="maxActive"> <value>${db.pool.max}</value> </property> <property name="defaultAutoCommit" value="false" /> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" p:dataSource-ref="dataSource" /> <bean id="threadPoolTaskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor"> <property name="corePoolSize" value="2" /> <property name="keepAliveSeconds" value="200" /> <property name="maxPoolSize" value="10" /> <property name="queueCapacity" value="60" /> </bean> <bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate"> <property name="transactionManager"> <ref bean="transactionManager" /> </property> </bean> </beans>[/code] 接口代码: [code="java"] import javax.jws.WebService; import javax.ws.rs.core.Response; import org.springframework.transaction.annotation.Transactional; import com.sns.bestv.entity.VisFclass; import com.sns.bestv.service.impl.VisFclassServiceImpl.Fclasses; @WebService @Transactional public interface VisFclassService { Response save(VisFclass fclass); Response delete(String app_key,int cid,String groupsids); Response update(VisFclass fclass); Fclasses get(String app_key,int cid); } [/code] 启动时候控制台错误信息: [code="java"] 2009-9-1 20:57:07 org.apache.catalina.core.AprLifecycleListener init 信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: E:\java\jdk1.6.0_13\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;E:\java\jdk1.6.0_13\jre\bin;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Java\jdk1.6.0_13\BIN;C:\Program Files\Common Files\Adobe\AGL;;C:\Program Files\Common Files\Thunder Network\KanKan\Codecs;C:\Program Files\TortoiseSVN\bin;D:\;C:\Program Files\MySQL\MySQL Server 5.0\bin;C:\Program Files\Microsoft Visual Studio\Common\Tools\WinNT;C:\Program Files\Microsoft Visual Studio\Common\MSDev98\Bin;C:\Program Files\Microsoft Visual Studio\Common\Tools;C:\Program Files\Microsoft Visual Studio\VC98\bin;d:\Program Files\SSH Secure Shell;C:\Program Files\SSH Communications Security\SSH Secure Shell 2009-9-1 20:57:07 org.apache.coyote.http11.Http11Protocol init 信息: Initializing Coyote HTTP/1.1 on http-8081 2009-9-1 20:57:07 org.apache.catalina.startup.Catalina load 信息: Initialization processed in 763 ms 2009-9-1 20:57:07 org.apache.catalina.core.StandardService start 信息: Starting service Catalina 2009-9-1 20:57:07 org.apache.catalina.core.StandardEngine start 信息: Starting Servlet Engine: Apache Tomcat/6.0.18 log4j:ERROR Parsing error on line 30 and column 23 log4j:ERROR The content of element type "log4j:configuration" must match "(renderer*,appender*,(category|logger)*,root?,categoryFactory?)". 2009-9-1 20:57:08 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring root WebApplicationContext 20:57:08,359 INFO org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:189): Root WebApplicationContext: initialization started 20:57:08,437 INFO org.springframework.context.support.AbstractApplicationContext.prepareRefresh(AbstractApplicationContext.java:411): Refreshing org.springframework.web.context.support.XmlWebApplicationContext@db95a1: display name [Root WebApplicationContext]; startup date [Tue Sep 01 20:57:08 CST 2009]; root of context hierarchy 20:57:08,609 INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:323): Loading XML bean definitions from class path resource [applicationContext.xml] 20:57:08,937 INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:323): Loading XML bean definitions from class path resource [serviceContext.xml] 20:57:09,000 INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:323): Loading XML bean definitions from class path resource [META-INF/cxf/cxf.xml] 20:57:09,046 INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:323): Loading XML bean definitions from class path resource [META-INF/cxf/cxf-extension-soap.xml] 20:57:09,093 INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:323): Loading XML bean definitions from class path resource [META-INF/cxf/cxf-servlet.xml] 20:57:09,187 INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:323): Loading XML bean definitions from class path resource [META-INF/cxf/cxf-extension-jaxrs-binding.xml] 20:57:09,296 INFO org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:426): Bean factory for application context [org.springframework.web.context.support.XmlWebApplicationContext@db95a1]: org.springframework.beans.factory.support.DefaultListableBeanFactory@138847d 20:57:09,671 INFO org.springframework.core.io.support.PropertiesLoaderSupport.loadProperties(PropertiesLoaderSupport.java:178): Loading properties file from class path resource [DataBase.properties] 20:57:10,000 INFO org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:414): Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@138847d: defining beans [db-properties,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,daoTemplate,dataSource,transactionManager,userDao,customerDao,custUserDao,aipUsersDao,aipLogDao,postDao,friendDao,messageDao,fclassDao,userClassDao,customizeDao,threadPoolTaskExecutor,transactionTemplate,cxf,org.apache.cxf.bus.spring.BusApplicationListener,org.apache.cxf.bus.spring.BusWiringBeanFactoryPostProcessor,org.apache.cxf.bus.spring.Jsr250BeanPostProcessor,org.apache.cxf.bus.spring.BusExtensionPostProcessor,org.apache.cxf.resource.ResourceManager,org.apache.cxf.configuration.Configurer,org.apache.cxf.binding.BindingFactoryManager,org.apache.cxf.transport.DestinationFactoryManager,org.apache.cxf.transport.ConduitInitiatorManager,org.apache.cxf.wsdl.WSDLManager,org.apache.cxf.phase.PhaseManager,org.apache.cxf.workqueue.WorkQueueManager,org.apache.cxf.buslifecycle.BusLifeCycleManager,org.apache.cxf.endpoint.ServerRegistry,org.apache.cxf.endpoint.ServerLifeCycleManager,org.apache.cxf.endpoint.ClientLifeCycleManager,org.apache.cxf.transports.http.QueryHandlerRegistry,org.apache.cxf.endpoint.EndpointResolverRegistry,org.apache.cxf.headers.HeaderManager,org.apache.cxf.catalog.OASISCatalogManager,org.apache.cxf.endpoint.ServiceContractResolverRegistry,org.apache.cxf.binding.soap.SoapBindingFactory,org.apache.cxf.binding.soap.SoapTransportFactory,org.apache.cxf.binding.soap.customEditorConfigurer,org.apache.cxf.transport.servlet.ServletTransportFactory,org.apache.cxf.jaxrs.JAXRSBindingFactory,userServices,profileService,postService,friendService,messageService,groupService,custermerService,customizeService,userServices_wa]; root of factory hierarchy 20:57:10,500 INFO org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor.initialize(ThreadPoolTaskExecutor.java:250): Initializing ThreadPoolExecutor 'threadPoolTaskExecutor' 2009-9-1 20:57:12 org.apache.cxf.jaxrs.utils.InjectionUtils reportServerError 严重: Method setMessageContext injection failure 20:57:12,968 INFO org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:421): Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@138847d: defining beans [db-properties,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,daoTemplate,dataSource,transactionManager,userDao,customerDao,custUserDao,aipUsersDao,aipLogDao,postDao,friendDao,messageDao,fclassDao,userClassDao,customizeDao,threadPoolTaskExecutor,transactionTemplate,cxf,org.apache.cxf.bus.spring.BusApplicationListener,org.apache.cxf.bus.spring.BusWiringBeanFactoryPostProcessor,org.apache.cxf.bus.spring.Jsr250BeanPostProcessor,org.apache.cxf.bus.spring.BusExtensionPostProcessor,org.apache.cxf.resource.ResourceManager,org.apache.cxf.configuration.Configurer,org.apache.cxf.binding.BindingFactoryManager,org.apache.cxf.transport.DestinationFactoryManager,org.apache.cxf.transport.ConduitInitiatorManager,org.apache.cxf.wsdl.WSDLManager,org.apache.cxf.phase.PhaseManager,org.apache.cxf.workqueue.WorkQueueManager,org.apache.cxf.buslifecycle.BusLifeCycleManager,org.apache.cxf.endpoint.ServerRegistry,org.apache.cxf.endpoint.ServerLifeCycleManager,org.apache.cxf.endpoint.ClientLifeCycleManager,org.apache.cxf.transports.http.QueryHandlerRegistry,org.apache.cxf.endpoint.EndpointResolverRegistry,org.apache.cxf.headers.HeaderManager,org.apache.cxf.catalog.OASISCatalogManager,org.apache.cxf.endpoint.ServiceContractResolverRegistry,org.apache.cxf.binding.soap.SoapBindingFactory,org.apache.cxf.binding.soap.SoapTransportFactory,org.apache.cxf.binding.soap.customEditorConfigurer,org.apache.cxf.transport.servlet.ServletTransportFactory,org.apache.cxf.jaxrs.JAXRSBindingFactory,userServices,profileService,postService,friendService,messageService,groupService,custermerService,customizeService,userServices_wa]; root of factory hierarchy 20:57:12,984 INFO org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor.shutdown(ThreadPoolTaskExecutor.java:349): Shutting down ThreadPoolExecutor 'threadPoolTaskExecutor' 20:57:12,984 ERROR org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:215): Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServices_wa': Invocation of init method failed; nested exception is org.apache.cxf.service.factory.ServiceConstructionException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:578) 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) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: org.apache.cxf.service.factory.ServiceConstructionException at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:112) 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) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335) ... 30 more Caused by: javax.ws.rs.WebApplicationException at org.apache.cxf.jaxrs.utils.InjectionUtils.reportServerError(InjectionUtils.java:277) at org.apache.cxf.jaxrs.utils.InjectionUtils.injectThroughMethod(InjectionUtils.java:190) at org.apache.cxf.jaxrs.utils.InjectionUtils.injectContextProxies(InjectionUtils.java:656) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.injectContexts(JAXRSServerFactoryBean.java:180) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.updateClassResourceProviders(JAXRSServerFactoryBean.java:201) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:81) ... 37 more 2009-9-1 20:57:13 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 'userServices_wa': Invocation of init method failed; nested exception is org.apache.cxf.service.factory.ServiceConstructionException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:578) 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) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: org.apache.cxf.service.factory.ServiceConstructionException at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:112) 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) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335) ... 30 more Caused by: javax.ws.rs.WebApplicationException at org.apache.cxf.jaxrs.utils.InjectionUtils.reportServerError(InjectionUtils.java:277) at org.apache.cxf.jaxrs.utils.InjectionUtils.injectThroughMethod(InjectionUtils.java:190) at org.apache.cxf.jaxrs.utils.InjectionUtils.injectContextProxies(InjectionUtils.java:656) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.injectContexts(JAXRSServerFactoryBean.java:180) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.updateClassResourceProviders(JAXRSServerFactoryBean.java:201) at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:81) ... 37 more 2009-9-1 20:57:13 org.apache.catalina.core.StandardContext start 严重: Error listenerStart 2009-9-1 20:57:13 org.apache.catalina.core.StandardContext start 严重: Context [] startup failed due to previous errors 2009-9-1 20:57:13 org.apache.catalina.core.ApplicationContext log 信息: Closing Spring root WebApplicationContext 2009-9-1 20:57:13 org.apache.coyote.http11.Http11Protocol start 信息: Starting Coyote HTTP/1.1 on http-8081 2009-9-1 20:57:13 org.apache.jk.common.ChannelSocket init 信息: JK: ajp13 listening on /0.0.0.0:9009 2009-9-1 20:57:13 org.apache.jk.server.JkMain start 信息: Jk running ID=0 time=0/47 config=null 2009-9-1 20:57:13 org.apache.catalina.startup.Catalina start 信息: Server startup in 6270 ms [/code] [b]问题补充:[/b] 1:@Transactional 不是说用注解就得用接口吗?你说的加到实现类上我也试了一样的错误。 2:[code="java"]<bean id="threadPoolTaskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor"> <property name="corePoolSize" value="2" /> <property name="keepAliveSeconds" value="200" /> <property name="maxPoolSize" value="10" /> <property name="queueCapacity" value="60" /> </bean> [/code] 这是连接池的东西。 3: <!-- 定义切入点,引用事务通知 --> [code="java"]<aop:config proxy-target-class="true"> <aop:advisor advice-ref="txAdvice" pointcut="execution (* com.mobile.dao.*.*(..))"/>[/code] </aop:config> 这种方式我试过了。也会出错。 [b]4:其二,既然你要用注解的方式,那么你就要在你的项目中,加入这两个jar包:aspectjweaver.jar aspectjrt.jar 我好像没加这两个包。我加加试试。[/b] 5:配置文件哪里有问题?如果我不在接口或类上加@Transactional 就是完全正确的运行。 谢谢!请帮忙! [b]问题补充:[/b] [b]再补充:两个包我加了,还是一样的错误。而且那两个包是aop才需要的吧?[/b] [b]问题补充:[/b] [b][color=darkred]yangtao309[/color][/b] 按照你说的把那个多余的连接池delete了。程序不会出错了。 但是不会回滚事务? 那我另问一下:[color=blue]我把@Transactional(readOnly=false) public Response addCustomer(VisCustomer cut) 放在一个接口的实现类的方法上面,那是不是就说我这个方法体都具有一个相同的事务呢?只要其中一个地方出错整个方法都执行失败? 因为我这个方法内不止使用了一个dao的一个方法,有多个方法。比如我现在有 table1,table1-2(关系表),table2 我现在要操作table1,给其insert ,insert之后要向 table1-2中添加一条数据,这时我添加table1-2时出错了,那么我操作table1的数据可以回滚吗? [/color] [b]问题补充:[/b] [b]我添加table1-2时并没有异常,是在数据库中被回滚的,程序中执行是正确的。这样能把它在程序中就回滚了吗?我正在看spring2.5的开发参考手册,其中rollbackForClassname 是定义一组类的名字,必须是Throwable的子类,遇到时必须回滚。如果我产生不了异常不就是说还是回滚不了?[/b] [b]问题补充:[/b] [quote]@Transactional(readOnly=false,rollbackFor = Throwable.class)[/quote] 不能回滚事务。肯定还有地方不对。但是配置我想是没问题了。看了api现在完全按照上面来了。非常非常感谢[color=olive]yangtao309 [/color]
Spring boot controller类加入@Autowired注解启动报错
![图片说明](https://img-ask.csdn.net/upload/201904/11/1554974904_886024.png) 工程结构 ``` //下面是全部的代码,最下面时错误日志。第一次提问,不知道插入代码片的格式是不是这样的,跪求大神指导,已经看了很多解决方案,但都无法解决我的问题,注释掉Autowired或者@注释掉Autowired(required=false)虽然可以启动项目,但是程序执行时又会发生错误,问题是逃避不了的。再次跪求大神指导。 //controller package controller; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import bean.AppMessage; import service.AppMessageService; @RestController @RequestMapping("/appmessage") public class AppMessageController { @Autowired/*(required=false)*/ private AppMessageService service; @RequestMapping("/getThree") public List<AppMessage> getThreeForMessage(){ List<AppMessage> list = service.getMessage(); return list; } @RequestMapping("/getAll") public List<AppMessage> getAllMessage(){ List<AppMessage> list = service.getAllMessage(); int num = list.size(); if(null!=list && num>3){ for (int i = 0; i < num-3; i++) { list.remove(0); } } return list; } @RequestMapping("/getByID") public List<AppMessage> getMessageById(@RequestParam("id") String id){ List<AppMessage> list = service.getMessageById(id); int num = list.size(); if(null!=list && num>5){ for (int i = 0; i < num-5; i++) { list.remove(0); } } return list; } @RequestMapping(value = "/add",method = RequestMethod.POST) public int addMessage(@RequestBody AppMessage appMessage){ return service.addMessage(appMessage); } @RequestMapping(value="/delMessageById",method=RequestMethod.POST) public int delMessageById(@RequestParam("id") String id){ return service.delMessage(id); } } ``` ``` //Service package service; import java.util.ArrayList; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import bean.AppMessage; import mapper.AppMessageMapper; @Transactional @Service("appMessageService") public class AppMessageService { @Autowired private AppMessageMapper mapper; public List<AppMessage> getMessage(){ List<AppMessage> list = new ArrayList<AppMessage>(); list.add(mapper.selectByPrimaryKey("xtt")); //list = mapper.selectAll(); return list; } public List<AppMessage> getAllMessage(){ List<AppMessage> list = new ArrayList<AppMessage>(); list = mapper.selectAll(); return list; } public int addMessage(AppMessage appMessage) { return mapper.insert(appMessage); } public List<AppMessage> getMessageById(String id) { return mapper.getMessById(id); } public int delMessage(String id) { return mapper.deleteByPrimaryKey(id); } } ``` ``` //Mapper 接口,映射到mapper.xml package mapper; import java.util.List; import bean.AppMessage; public interface AppMessageMapper { int deleteByPrimaryKey(String id); int insert(AppMessage record); int insertSelective(AppMessage record); AppMessage selectByPrimaryKey(String id); int updateByPrimaryKeySelective(AppMessage record); int updateByPrimaryKey(AppMessage record); List<AppMessage> selectAll(); List<AppMessage> getMessById(String id); } ``` ``` <!-- Mapper.xml文件 --> <?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="mapper.AppMessageMapper" > <!-- 对应mapper接口的位置 --> <resultMap id="BaseResultMap" type="bean.AppMessage" > <id column="id" property="id" jdbcType="VARCHAR" /> <result column="message" property="message" jdbcType="VARCHAR" /> <result column="senddate" property="senddate" jdbcType="TIMESTAMP" /> </resultMap> <sql id="Base_Column_List" > id, message, senddate </sql> <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String" > select <include refid="Base_Column_List" /> from appuser_message where id = #{id,jdbcType=VARCHAR} </select> <delete id="deleteByPrimaryKey" parameterType="java.lang.String" > delete from appuser_message where id = #{id,jdbcType=VARCHAR} </delete> <insert id="insert" parameterType="bean.AppMessage" > insert into appuser_message (id, message, senddate ) values (#{id,jdbcType=VARCHAR}, #{message,jdbcType=VARCHAR}, #{senddate,jdbcType=TIMESTAMP} ) </insert> <insert id="insertSelective" parameterType="bean.AppMessage" > insert into appuser_message <trim prefix="(" suffix=")" suffixOverrides="," > <if test="id != null" > id, </if> <if test="message != null" > message, </if> <if test="senddate != null" > senddate, </if> </trim> <trim prefix="values (" suffix=")" suffixOverrides="," > <if test="id != null" > #{id,jdbcType=VARCHAR}, </if> <if test="message != null" > #{message,jdbcType=VARCHAR}, </if> <if test="senddate != null" > #{senddate,jdbcType=TIMESTAMP}, </if> </trim> </insert> <update id="updateByPrimaryKeySelective" parameterType="bean.AppMessage" > update appuser_message <set > <if test="message != null" > message = #{message,jdbcType=VARCHAR}, </if> <if test="senddate != null" > senddate = #{senddate,jdbcType=TIMESTAMP}, </if> </set> where id = #{id,jdbcType=VARCHAR} </update> <update id="updateByPrimaryKey" parameterType="bean.AppMessage" > update appuser_message set message = #{message,jdbcType=VARCHAR}, senddate = #{senddate,jdbcType=TIMESTAMP} where id = #{id,jdbcType=VARCHAR} </update> <select id="selectAll" resultMap="BaseResultMap"> select id, message, senddate from appuser_message order by senddate </select> <select id="getMessById" resultMap="BaseResultMap" parameterType="java.lang.String"> select id, message, senddate from appuser_message where id = #{id,jdbcType=VARCHAR} order by senddate asc </select> </mapper> ``` ``` //实体类 package bean; import java.util.Date; public class AppMessage { private String id; private String message; private Date senddate; public String getId() { return id; } public void setId(String id) { this.id = id == null ? null : id.trim(); } public String getMessage() { return message; } public void setMessage(String message) { this.message = message == null ? null : message.trim(); } public Date getSenddate() { return senddate; } public void setSenddate(Date senddate) { this.senddate = senddate; } } ``` ``` //启动类 package com.shuai.spring_boot_1; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ComponentScan; /** * Hello world! * */ @ComponentScan(basePackages="controller") @SpringBootApplication public class App { public static void main(String[] args) { SpringApplication.run(App.class, args); } } ``` ``` pom.xml <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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.5.RELEASE</version> </parent> <groupId>com.shuai</groupId> <artifactId>spring-boot-1</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>spring-boot-1</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> <!--web应用基本环境配置 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>com.jayway.jsonpath</groupId> <artifactId>json-path</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.0.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!-- <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <version>1.3.5.RELEASE</version> </dependency> --> </dependencies> <build> <plugins> <!-- spring-boot-maven-plugin插件就是打包spring boot应用的 --> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> ``` ``` #properties文件 spring.datasource.url=jdbc:mysql://localhost:3306/world spring.datasource.username=root spring.datasource.password=000000 spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.max-idle=10 spring.datasource.max-wait=10000 spring.datasource.min-idle=5 spring.datasource.initial-size=5 server.port=8012 server.session.timeout=10 server.tomcat.uri-encoding=UTF-8 # mybatis.config= classpath:mybatis-config.xml mybatis.mapperLocations=classpath:mappers/*.xml # domain object's package #mybatis.typeAliasesPackage=com.lgp.SpringBoot.bean mybatis.typeAliasesPackage=bean # handler's package # mybatis.typeHandlersPackage= # check the mybatis configuration exists # mybatis.check-config-location= # mode of execution. Default is SIMPLE # mybatis.executorType= ``` ![图片说明](https://img-ask.csdn.net/upload/201904/11/1554976465_217387.png) 错误日志
spring如何在Aspect中获取切点注解方法的泛型参数类型
业务场景是这样:想要做一个自定义注解@MethodCache,注解方法,功能是通过Aspect切片来自动缓存方法结果 ``` @Target({ METHOD }) @Retention(RUNTIME) public @interface MethodCache { /** * 过期时间 单位秒 默认60秒 */ int expire() default 60; } ``` Aspect类 ``` @Aspect @Configuration public class MethodCacheAnnotationAspect { // 日志 private Logger logger = LoggerFactory.getLogger(MethodCacheAnnotationAspect.class); //redis @Autowired private RedisTemplate bbscache; // around 建言 切入点为匹配注解了@MethodCache @Around("@annotation(com.ewt360.bbsapi.service.component.MethodCache)") public Object cacheProcess(ProceedingJoinPoint jp) throws Throwable { Class<?> targetClz = jp.getTarget().getClass(); String methodName = jp.getSignature().getName(); if(!(jp.getSignature() instanceof MethodSignature)){ logger.warn("该方法接口无法启用缓存功能: {}", jp.getSignature().toLongString()); return jp.proceed(); } MethodSignature methodSign = (MethodSignature)jp.getSignature(); MethodCache sc = methodSign.getMethod().getAnnotation(MethodCache.class); if (sc == null) return jp.proceed(); int expire = sc.expire() > 0 ? sc.expire() : 200; // 组装缓存key String cacheKey = buildCacheKey(targetClz, methodName, jp.getArgs()); logger.info("cacheInvoke =>{}",cacheKey); Object rval = cacheInvoke(sc, methodSign, jp, cacheKey, expire); return rval; } private String buildCacheKey(Class targetClz, String methodName, Object[] args){ return targetClz.getPackage()+methodName+ StringUtils.arrayToDelimitedString(args, "."); } private Object cacheInvoke(MethodCache sc, MethodSignature methodSign, ProceedingJoinPoint jp, String cacheKey, int expire) throws Throwable { //得到方法的结果类型 Class returnClazz = methodSign.getReturnType(); Object result; Object rval = bbscache.opsForValue().get(cacheKey); if (rval == null) { logger.info("miss from cache, load backend for key : {}", cacheKey); result = jp.proceed(); if(result != null){ logger.info("cache to redis {},{}", cacheKey, JSON.toJSONString(result)); bbscache.opsForValue().set(cacheKey, result, expire, TimeUnit.SECONDS); } } else{ if(ObjectUtils.isBaseType(returnClazz)){ result = rval; } else { JSON.parseObject((String) rval, new TypeReference<List<Integer>>() {}); result = JSONObject.toJavaObject((JSON) rval, returnClazz); } logger.info("cache get object: {}", JSON.toJSONString(rval)); } return result; } } ``` 使用的时候只要在方法上加上注解就ok ``` @MethodCache() public List<Integer> testInt() { List<Integer> list = new ArrayList<>(); list.add(0); list.add(1); return list; } ``` 利用redis缓存方法执行结果,如果已缓存则将缓存转换为方法出参类型,正常的参数类型都OK的,可以得到方法的结果类型,但是如果是泛型类型的话,比如List和map, 却只能得到List,Map类型,并不能得到确切的泛型类型,比如 ``` List<Map<String,String>> List<User> Map<String, User> ``` 只能解出 ``` List<JSONObject> Map<Object, JSONObject> ``` 因为泛型的类型擦除,所以很难做到,也想过在注解里面传入具体类型,但是也没办法把泛型类型传进来,这个要怎么做,希望大家提供思路!!
spring boot 2.1.7 重写 RequestMappingHandlerMapping 实现url 自动前缀 出错
最近重写了spring boot 2.1.7的 RequestMappingHandlerMapping 想要实现 用不同注解实现不同的URL前缀但是项目启动后却出现了空指针,经过dedug 发现 在 getHandler这个方法里 ``` if (logger.isTraceEnabled()) { logger.trace("Mapped to " + handler); } ``` logger 为空 具体错误如下 ``` java.lang.NullPointerException at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:416) at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1232) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1015) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897) at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:128) at org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) at org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) at org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1591) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) ``` 重写方法如下 ``` @Override protected RequestMappingInfo getMappingForMethod(Method method, Class<?> handlerType) { RequestMappingInfo info = super.getMappingForMethod(method, handlerType); if (info != null) { AdminRequestMapping adminRequestMapping= method.getDeclaringClass().getAnnotation(AdminRequestMapping.class); if (adminRequestMapping!=null){ return RequestMappingInfo.paths(new String[]{adminRequestMapping.prefix()}).build().combine(info); } } return info; } ``` 配置类如下 ``` @Configuration @Order(Ordered.HIGHEST_PRECEDENCE) public class WebMvcConfig implements WebMvcRegistrations { @Override public PrefixRequestMappingHandlerMapping getRequestMappingHandlerMapping() { return new PrefixRequestMappingHandlerMapping(); } } ``` 请问这个问题怎么解决???
spring task xml起了作用可以用,但注解就不行,ehcache缓存没起作用,
applicationContext-task.xml ,注释部分解除了是可以使用的,但我想用注解 ``` 头部删除 <task:annotation-driven/> <!-- <bean id="task" class="task.TestTask"></bean> <task:scheduled-tasks> <task:scheduled ref="task" method="test" cron="0 * 13 * * ?"/> </task:scheduled-tasks> --> <!-- --> </beans> ``` TestTask.java 这是测试 定时器的, 测试类 ``` package task; import org.springframework.scheduling.annotation.Scheduled; import org.springframework.stereotype.Component; @Component public class TestTask { @Scheduled(cron = "0/5 * 11 * * ?") public void test() { System.out.println("-----执行------"); } } ``` 这是 CityCache.java 缓存 测试类 ``` package cache; import java.util.List; import javax.annotation.Resource; import org.springframework.cache.annotation.Cacheable; import org.springframework.stereotype.Controller; import org.springframework.stereotype.Service; import dao.AreaDao; import dao.CityDao; import dao.ProvinceDao; import entity.Area; import entity.City; import entity.Province; @Controller public class CityCache { @Resource private ProvinceDao provinceDao; @Resource private CityDao cityDao; @Resource private AreaDao areaDao; @Cacheable(value = "province") public List<Province> listProvince() { // TODO Auto-generated method stub return provinceDao.list(); } @Cacheable(value = "province") public List<Province> listProvince1() { // TODO Auto-generated method stub return null; } @Cacheable(value = "city") public List<City> listCityByProvinceId(String id) { // TODO Auto-generated method stub return cityDao.listCityByProvinceId(id); } @Cacheable(value = "area") public List<Area> listAreaByAreaId(String id) { // TODO Auto-generated method stub return areaDao.listAreaByCityId(id); } } ``` applicationContext.xml ``` 头部占位置 删了 <!-- dataSource --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/city" /> <property name="username" value="root" /> <property name="password" value="root" /> </bean> <!-- DataSource JNDI --> <!-- <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean" p:jndiName="java:comp/env/jdbc/house"></bean> --> <!-- AOP 实现事务管理 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" p:dataSource-ref="dataSource"> </bean> <!-- 配置事务相关属性 --> <tx:advice id="advice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="save*"/> <tx:method name="update*"/> <tx:method name="delete*"/> <tx:method name="*"/> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut expression="execution(public * service.impl.*.*(..))" id="servicePointcut"/> <aop:advisor advice-ref="advice" pointcut-ref="servicePointcut"/> </aop:config> <!-- sqlSessionFactory 会话工厂--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 注入数据源 --> <property name="dataSource" ref="dataSource"></property> <!-- 注入mybatis配置文件路径 --> <property name="configLocation" value="classpath:mybatis-config.xml"></property> </bean> <!-- sqlSession 注:SqlSessionTemplate 没有提供set方法注入--> <!-- <bean id="session" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg> </bean> --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="dao"></property> </bean> <!-- 启用缓存注解功能 --> <!-- <cache:annotation-driven cache-manager="springCacheManager" proxy-target-class="false"/> --> <cache:annotation-driven cache-manager="cacheManager"/> <bean id="cacheManagerFactory" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"> <property name="configLocation" value="classpath:ehcache.xml"/> </bean> <bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager"> <property name="cacheManager" ref="cacheManagerFactory"/> </bean> <import resource="applicationContext-task.xml"/> </beans> ``` springmvc.xml ``` 头部删除 <!-- 使用 annotation 方式完成映射 --> <!-- 让spring扫描报下的所有类,让标注spring注解的类生效 --> <context:component-scan base-package="controller,dao,service,cache,task"/> <mvc:annotation-driven> <!-- 消息转换器 --> <mvc:message-converters register-defaults="true"> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="supportedMediaTypes" value="text/html;charset=UTF-8"/> </bean> </mvc:message-converters> </mvc:annotation-driven> <!-- --> <mvc:resources location="/statics/" mapping="/**"/> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans> ``` mybatis-config.xml ``` <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//ibatis.apache.org//DTD Config 3.0//EN" "ibatis-3-config.dtd"> <configuration> <settings> <setting name="logImpl" value="LOG4J"/> <setting name="cacheEnabled" value="true" /> </settings> <typeAliases> <package name="entity"/> </typeAliases> </configuration> ``` 在缓存哪方面我看了下 感觉是@Cacheable(value = "province")没起作用,我把province写错运行也没有报错,按说,我的ehcache。xml中没有配置名字,在@Cacheable(value = "province")中使用会 抛出异常。 如有大神看出问题请告知 ,谢谢
springboot启动类不加载RetentionPolicy.CLASS注解吗?
最近写了一个注解,用的默认的Retention,也就是CLASS,里面import了一个bean,发现将这个注解加在springboot的启动类上的时候,import的bean无法实例化,如果是把这个注解加在普通@Configuration配置类的时候是可以实例化import的bean的。如果把这个注解的RetentionPolicy 改为 runtime ,加在启动类的时候也是可以实例化bean的!弄了一下午没搞明白原理!求助大神们! 这个是我写的注解,LogConfig为一个bean ``` @Import({LogConfig.class}) public @interface EnableCPSPLogConfig { } @Configuration @EnableConfigurationProperties @RefreshScope @ConfigurationProperties( prefix = "cpsplog" ) public class LogConfig { private List<String> include; private List<String> exclude; public LogConfig() { } } ``` 这种情况是可以正常使用的: ``` @Configuration @EnableCPSPLogConfig public class WebConfig { } ``` 这种情况下必须要把RetentionPolicy 改为 runtime也是可以使用的 ``` @SpringBootApplication @EnableCPSPLogConfig public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } } ```
Java学习的正确打开方式
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