config.properties 修改

[jking8866]

config.properties文件中,最后一行

mapper.Mapper = tk.mybatis.mapper.common.Mapper

是否应改为:

mapper.Mapper = com.isea533.mybatis.util.UtilMapper

原因是,用原来的配置,会导致生成的mapper包中接口继承有问题,不修改直接启项目会报错

启动报错后,查了好久才发现是这个问题

[abel533]

这行配置只在 generatorConfig.xml 中用到了。

[jking8866]

如果不修改的话,启动服务会报错

[abel533]

报什么错？

[jking8866]

一月 09, 2017 11:57:57 下午 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 'dishService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected tk.mybatis.mapper.common.Mapper org.orange.wenhe.service.impl.BaseService.mapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [tk.mybatis.mapper.common.Mapper] 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:334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1204)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:762)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4842)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1407)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1397)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected tk.mybatis.mapper.common.Mapper org.orange.wenhe.service.impl.BaseService.mapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [tk.mybatis.mapper.common.Mapper] 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:555)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 22 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [tk.mybatis.mapper.common.Mapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1308)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1054)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:527)
    ... 24 more

一月 09, 2017 11:57:57 下午 org.apache.catalina.core.StandardContext startInternal
严重: One or more listeners failed to start. Full details will be found in the appropriate container log file
一月 09, 2017 11:57:57 下午 org.apache.catalina.core.StandardContext startInternal
严重: Context [/orange] startup failed due to previous errors
一月 09, 2017 11:57:57 下午 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
一月 09, 2017 11:57:57 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
警告: The web application [orange] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
一月 09, 2017 11:57:57 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
警告: The web application [orange] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
一月 09, 2017 11:57:57 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesThreads
警告: The web application [orange] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Object.wait(Native Method)
 java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
 com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:40)
一月 09, 2017 11:57:57 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-nio-7080"]
一月 09, 2017 11:57:57 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-nio-7009"]
一月 09, 2017 11:57:57 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 6658 ms

[jking8866]

在命令行中使用generator,生成代码后,在mapper接口中继承的是Mapper,应继承MyMapper, 修改config.properties中的mapper.Mapper,才能正常启动,

[abel533]

generator 用了 mapper.Mapper 属性。。所以你改的对。

[liuxiang]

我也入坑(遇到这个问题) 查起来还挺费劲

还有另一种处理办法： spring-context.xml，更新markerInterface值为tk.mybatis.mapper.common.Mapper

<!-- @MyBatisDao注解的接口(Mapper<Entity>类支持) -->
<bean id="mapperScannerConfigurer" class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
   <property name="markerInterface" value="tk.mybatis.mapper.common.Mapper"/>

建议： 为同在学习和使用Mybatis-Spring的同学们,少入一点坑。建议项目源码调整markerInterface默认值。 让使用过程更顺利，更灵活的能力可通过注释和文档进一步引导

[zhanghaichang]

config.properties 注释显示数据库连接池你是用的c3p0么，不是druid么？

[abel533]

@zhanghaichang 看这个：https://github.com/abel533/Mybatis-Spring/blob/master/src/main/resources/applicationContext.xml