spring boot mybatis的问题

spring boot版本1.5.3.RELEASE

mybatis-spring-boot-starter版本1.1.1

pom.xml文件

 <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
  </parent>

  <dependencies>
    <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>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>1.1.1</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
  </dependencies>

test测试类

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes=Run.class)
public class DaoTest {

    @Autowired
    private Dao dao;

    @Test
    public void insertPeople(){
        People people = new People();
        people.setName("张三");
        people.setAge(23);
        Integer i = dao.insertPeople(people);
        System.out.println("插入数量"+i);
    }
}

错误信息

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'DaoTest': Unsatisfied dependency expressed through field 'dao'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'demo.repository.Dao' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:386) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:44) ~[spring-boot-test-autoconfigure-1.5.3.RELEASE.jar:1.5.3.RELEASE]
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) ~[spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12]
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12]
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12]
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12]
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12]
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12]
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) [spring-test-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) [.cp/:na]
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) [.cp/:na]
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'demo.repository.Dao' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1486) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) ~[spring-beans-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    ... 29 common frames omitted

可是当我将mybatis-spring-boot-starter版本改为1.0.1后测试却可以通过

2017-05-27 11:22:55.458  INFO 10388 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-05-27 11:22:55.753  INFO 10388 --- [           main] DaoTest                                  : Started DaoTest in 3.123 seconds (JVM running for 3.778)
插入数量1
2017-05-27 11:22:56.404  INFO 10388 --- [       Thread-2] o.s.w.c.s.GenericWebApplicationContext   : Closing org.springframework.web.context.support.GenericWebApplicationContext@7690781: startup date [Sat May 27 11:22:53 CST 2017]; root of context hierarchy

然后我又将mybatis-spring-boot-starter版本改为1.3.0,同样上面的错误,应该是dao无法创建bean,这是为什么?????

1个回答

mapper接口处注解问题
mybatis-spring-boot-starter 1.0.1 使用@MapperScan
mybatis-spring-boot-starter 1.1.0之后 使用@Mapper

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Cause: java.lang.IllegalArgumentException: No enum constant com.xxx.common.module.enums.StatusEnum.1 * org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.executor.result.ResultMapException: Error attempting to get column 'status' from result set. Cause: java.lang.IllegalArgumentException: No enum constant com.xxx.common.module.enums.StatusEnum.1 * at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:77) * at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446) * at com.sun.proxy.$Proxy132.selectList(Unknown Source) * at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:230) * at com.baomidou.mybatisplus.core.override.PageMapperMethod.executeForMany(PageMapperMethod.java:173) * at com.baomidou.mybatisplus.core.override.PageMapperMethod.execute(PageMapperMethod.java:86) * at com.baomidou.mybatisplus.core.override.PageMapperProxy.invoke(PageMapperProxy.java:64) * at com.sun.proxy.$Proxy137.selectList(Unknown Source) * at com.baomidou.mybatisplus.extension.service.impl.ServiceImpl.getOne(ServiceImpl.java:259) * at com.baomidou.mybatisplus.extension.service.IService.getOne(IService.java:230) * at com.xxx.common.module.service.impl.AppServiceImpl.queryByAppKey(AppServiceImpl.java:100) * at com.xxx.common.module.service.impl.AppServiceImpl$$FastClassBySpringCGLIB$$9380a940.invoke(<generated>) * at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) * at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684) * at com.xxx.common.module.service.impl.AppServiceImpl$$EnhancerBySpringCGLIB$$307b01.queryByAppKey(<generated>) * at com.xxx.common.module.service.impl.AppInfoServiceImpl.validateBaseApi(AppInfoServiceImpl.java:141) * at com.xxx.common.module.service.impl.AppInfoServiceImpl.appInfo(AppInfoServiceImpl.java:157) * at com.xxx.common.module.service.impl.AppInfoServiceImpl$$FastClassBySpringCGLIB$$2bb67632.invoke(<generated>) * at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) * at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684) * at com.xxx.common.module.service.impl.AppInfoServiceImpl$$EnhancerBySpringCGLIB$$8bd88917.appInfo(<generated>) * at com.xxx.controller.ApiAppProductController.list(ApiAppProductController.java:79) * at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) * at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) * at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) * at java.lang.reflect.Method.invoke(Method.java:483) * at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189) * at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) * at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) * at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) * at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800) * at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) * at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) * 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.doPost(FrameworkServlet.java:908) * at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) * 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.xxx.common.xss.XssFilter.doFilter(XssFilter.java:24) * 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:107) * 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:107) * 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:107) * 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:107) * 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:199) * at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) * at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) * at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) * at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) * 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:408) * at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) * at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) * at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) * at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) * at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) * at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) * at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) * at java.lang.Thread.run(Thread.java:745) * Caused by: org.apache.ibatis.executor.result.ResultMapException: Error attempting to get column 'status' from result set. Cause: java.lang.IllegalArgumentException: No enum constant com.xxx.common.module.enums.StatusEnum.1 * at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:68) * at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyAutomaticMappings(DefaultResultSetHandler.java:520) * at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:401) * at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:355) * at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:330) * at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:303) * at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:196) * at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64) * at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) * at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) * at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) * at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) * at java.lang.reflect.Method.invoke(Method.java:483) * at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63) * at com.sun.proxy.$Proxy200.query(Unknown Source) * at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) * at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:326) * at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) * at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:136) * at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) * at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) * at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) * at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) * at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) * at java.lang.reflect.Method.invoke(Method.java:483) * at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) * ... 77 common frames omitted * Caused by: java.lang.IllegalArgumentException: No enum constant com.xxx.common.module.enums.StatusEnum.1 * at java.lang.Enum.valueOf(Enum.java:238) * at org.apache.ibatis.type.EnumTypeHandler.getNullableResult(EnumTypeHandler.java:49) * at org.apache.ibatis.type.EnumTypeHandler.getNullableResult(EnumTypeHandler.java:26) * at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:66) * ... 102 common frames omitted
Spring Boot + Mybatis 配置多数据源出错
刚接触Spring Boot 不久,今天用 Spring Boot + Mybatis 按照网上的方法配置多数据源, 配置了多个DataConfig,并给其中一个打上了Primary注解,现在出现这样的问题: 给哪个数据源加Primary注解哪个数据源才能查询成功,其他的数据源一查就报异常,搞了好久不知道哪出的问题,各位大婶帮忙看看,下面是堆栈信息 org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.builder.BuilderException: Error invoking SqlProvider method (tk.mybatis.mapper.provider.ExampleProvider.dynamicSQL). Cause: java.lang.InstantiationException: tk.mybatis.mapper.provider.ExampleProvider at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:79) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:447) at com.sun.proxy.$Proxy62.selectList(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231) at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:128) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) at com.sun.proxy.$Proxy67.selectByExample(Unknown Source) at com.hworld.clp.component.companysetting.CompanySettingComponentImpl.getVerifyCodeSettings(CompanySettingComponentImpl.java:38) at com.hworld.clp.service.member.MemberServiceImpl.verifyCodeSetting(MemberServiceImpl.java:368) at com.hworld.clp.service.member.MemberServiceImpl.sendVerifyCode(MemberServiceImpl.java:280) at com.hworld.clp.controller.member.MemberController.sendVerifyCode(MemberController.java:78) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) 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:52) 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:107) 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.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 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:81) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 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:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 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:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.ibatis.builder.BuilderException: Error invoking SqlProvider method (tk.mybatis.mapper.provider.ExampleProvider.dynamicSQL). Cause: java.lang.InstantiationException: tk.mybatis.mapper.provider.ExampleProvider at org.apache.ibatis.builder.annotation.ProviderSqlSource.createSqlSource(ProviderSqlSource.java:102) at org.apache.ibatis.builder.annotation.ProviderSqlSource.getBoundSql(ProviderSqlSource.java:73) at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:292) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434) ... 64 more Caused by: java.lang.InstantiationException: tk.mybatis.mapper.provider.ExampleProvider at java.lang.Class.newInstance(Class.java:427) at org.apache.ibatis.builder.annotation.ProviderSqlSource.createSqlSource(ProviderSqlSource.java:85) ... 74 more Caused by: java.lang.NoSuchMethodException: tk.mybatis.mapper.provider.ExampleProvider.<init>() at java.lang.Class.getConstructor0(Class.java:3082) at java.lang.Class.newInstance(Class.java:412) ... 75 more
spring boot 整合mybatis,memcached
用spring boot 整合mybatis 和memcached具体实现,主要是memcached得配置,用注解的方式实现
spring-boot mybatis 查询mysql报错问题
``` 2018-06-24 17:32:23.171 ERROR 6371 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.NullPointerException ### The error may exist in file [/Users/ww/IdeaProjects/test-Service/test-Search/target/classes/mapping/TestMapper.xml] ### The error may involve com.test.data.mapper.TestMapper.selectByPrimaryKey ### The error occurred while executing a query ### Cause: java.lang.NullPointerException] with root cause java.lang.NullPointerException: null ``` 我的pom.xml ``` <!-- Spring Boot Mybatis--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.2</version> </dependency> <!-- 数据源 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.19</version> </dependency> <!-- MySQL--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.39</version> </dependency> ``` TestMapper.java代码 ``` TestConfig selectByPrimaryKey(Long id); ``` TestMapper.xml ``` <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Long" > select <include refid="Base_Column_List" /> from test_config where id = #{id,jdbcType=BIGINT} </select> ``` 请各位大神帮忙看一下,几乎所有查询都报这个错误,用了@Param 注释也不行
Spring boot 集成Mybatis怎么在控制台打印sql语句
用spring boot集成mybatis,想让Mybaitsi的运行sql语句在控制台打印出来,怎么配置
spring boot和mybatis整合项目,测试的时候出现这个错误,哪位大神知道怎么解决
# 在持久层测试运行的时候出现以下错误,一直找不出什么原因 ``` org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Cannot load driver class: com.mysql.jdbc.Driver at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:587) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:541) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:138) [spring-boot-test-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:108) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:246) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) [spring-test-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206) [.cp/:na] Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Cannot load driver class: com.mysql.jdbc.Driver at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] ... 42 common frames omitted Caused by: java.lang.IllegalStateException: Cannot load driver class: com.mysql.jdbc.Driver at org.springframework.util.Assert.state(Assert.java:94) ~[spring-core-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:224) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.initializeDataSourceBuilder(DataSourceProperties.java:176) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:43) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari.dataSource(DataSourceConfiguration.java:81) ~[spring-boot-autoconfigure-2.0.1.RELEASE.jar:2.0.1.RELEASE] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171] at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_171] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE] ... 43 common frames omitted ```
Spring Boot+Mybatis无法获取数据库的值
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求助Spring-boot Mybatis问题
单个Mapper都可以扫到,正常运行,就是两个放同一个目录下,就报错了,求解,下面是我的代码@Configuration @MapperScan(basePackages={"cn.com.bsfit.frms.ds.mapper"},sqlSessionFactoryRef="dsSqlSessionFactory") public class DsDataSourceConfig { @Bean @ConfigurationProperties(prefix = "frms.merchants.ds") public DataSource dsDataSource() { return DataSourceBuilder.create().build(); } @Bean public SqlSessionFactory dsSqlSessionFactory(@Qualifier("dsDataSource")DataSource dsDataSource) throws Exception { if (dsDataSource != null) { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dsDataSource); bean.setConfigLocation(new ClassPathResource("DSMybatisConfig.xml")); return bean.getObject(); } return null; } @Bean public DataSourceTransactionManager dsTransactionManager(@Qualifier("dsDataSource")DataSource dsDataSource){ if(dsDataSource!=null) return new DataSourceTransactionManager(dsDataSource); return null; } @Bean public DSPayOrderMapper dsPayOrderMapper() throws Exception { SqlSessionTemplate sessionTemplate = new SqlSessionTemplate(dsSqlSessionFactory())); return sessionTemplate.getMapper(DSPayOrderMapper.class); } } 下面是错误信息 19:46:34.272 [main] WARN o.s.b.f.s.DefaultListableBeanFactory - Bean creation exception on FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'DSPayOrderMapper' defined in file [D:\WORK\eclipse-4.5\workspace\frms-merchant\target\classes\cn\com\bsfit\frms\ds\mapper\DSPayOrderMapper.class]: Cannot resolve reference to bean 'dsSqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'dsSqlSessionFactory': Requested bean is currently in creation: Is there an unresolvable circular reference? 19:46:34.388 [main] WARN o.s.b.f.s.DefaultListableBeanFactory - Bean creation exception on FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'DSPayOrderMapper' defined in file [D:\WORK\eclipse-4.5\workspace\frms-merchant\target\classes\cn\com\bsfit\frms\ds\mapper\DSPayOrderMapper.class]: Cannot resolve reference to bean 'dsSqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'dsSqlSessionFactory': Requested bean is currently in creation: Is there an unresolvable circular reference?
spring boot mybatis 往 mysql数据库存date数据类型会诡异的多一秒
mysql数据库存date 如Tue Nov 07 16:18:11 CST 2017 存到数据库有时候(7 0%的概率)就会变成 2017-11-07 16:18:12。。求大牛指教
关于IDEA 创建spring boot +mybatis 项目 !!!
关于IDEA 创建spring boot +mybatis 项目 !!!启动tomcat 报错 Error creating bean with name xxx 刚接触用IDEA写spring Boot, 原项目在eclipse可以运行,我还是个初学者希望大家能帮帮忙· ![图片说明](https://img-ask.csdn.net/upload/201709/27/1506514385_422917.png) ![图片说明](https://img-ask.csdn.net/upload/201709/27/1506514379_606448.png) ![图片说明](https://img-ask.csdn.net/upload/201709/27/1506514570_663975.png)
spring boot 整合mybatis-generator如何搭建和配置
自己搭建了两个demo,按照网上的提示,最终都报 Exception getting jdbc driver, 我用的mysql,驱动依赖都有,因为不用mybatis-generator是能够运行的,可以与数据库连接实现简单的DQL和DML语句, 这是我的项目结构![图片说明](https://img-ask.csdn.net/upload/201711/15/1510712201_232957.png) 下面这是我的generatorConfig.xml文件的配置, <context id="MySQLTables"> <commentGenerator> <property name="suppressDate" value="true" /> <property name="suppressAllComments" value="false" /> </commentGenerator> <!--数据库链接地址账号密码 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/mydb" userId="root" password="root" /> <javaTypeResolver> <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!--生成Model类存放位置 --> <javaModelGenerator targetPackage="com.doudo.pojo" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> <property name="trimStrings" value="true" /> </javaModelGenerator> <!--生成映射文件存放位置 --> <sqlMapGenerator targetPackage="com.doudo.mapper" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <javaClientGenerator type="XMLMAPPER" targetPackage="com.doudo.mapper" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> </javaClientGenerator> <!--生成对应表及类名 --> <table tableName="user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> 下面这是pom.xml代码 <name>AdminLTE</name> <description></description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.8.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>net.sourceforge.nekohtml</groupId> <artifactId>nekohtml</artifactId> <version>1.9.21</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.5</version> <dependencies> <dependency> <groupId> mysql</groupId> <artifactId> mysql-connector-java</artifactId> <version> 5.1.39</version> </dependency> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency> </dependencies> <executions> <execution> <id>Generate MyBatis Artifacts</id> <phase>package</phase> <goals> <goal>generate</goal> </goals> </execution> </executions> <configuration> <!--允许移动生成的文件 --> <verbose>true</verbose> <!-- 是否覆盖 --> <overwrite>true</overwrite> <!-- 自动生成的配置 --> <configurationFile>src/main/resources/mybatis-generator.xml</configurationFile> </configuration> </plugin> </plugins> </build>
Spring Boot + Mybatis 配置多数据源出错
刚接触Spring Boot 不久,今天用 Spring Boot + Mybatis 按照网上的方法配置多数据源, 配置了多个DataConfig,并给其中一个打上了Primary注解,现在出现这样的问题: 给哪个数据源加Primary注解哪个数据源才能查询成功,其他的数据源一查就报异常,搞了好久不知道哪出的问题,各位大婶帮忙看看,下面是堆栈信息 org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.builder.BuilderException: Error invoking SqlProvider method (tk.mybatis.mapper.provider.ExampleProvider.dynamicSQL). Cause: java.lang.InstantiationException: tk.mybatis.mapper.provider.ExampleProvider at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:79) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:447) at com.sun.proxy.$Proxy62.selectList(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231) at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:128) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) at com.sun.proxy.$Proxy67.selectByExample(Unknown Source) at com.hworld.clp.component.companysetting.CompanySettingComponentImpl.getVerifyCodeSettings(CompanySettingComponentImpl.java:38) at com.hworld.clp.service.member.MemberServiceImpl.verifyCodeSetting(MemberServiceImpl.java:368) at com.hworld.clp.service.member.MemberServiceImpl.sendVerifyCode(MemberServiceImpl.java:280) at com.hworld.clp.controller.member.MemberController.sendVerifyCode(MemberController.java:78) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) 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:52) 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:107) 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.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 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:81) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 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:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 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:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.ibatis.builder.BuilderException: Error invoking SqlProvider method (tk.mybatis.mapper.provider.ExampleProvider.dynamicSQL). Cause: java.lang.InstantiationException: tk.mybatis.mapper.provider.ExampleProvider at org.apache.ibatis.builder.annotation.ProviderSqlSource.createSqlSource(ProviderSqlSource.java:102) at org.apache.ibatis.builder.annotation.ProviderSqlSource.getBoundSql(ProviderSqlSource.java:73) at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:292) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434) ... 64 more Caused by: java.lang.InstantiationException: tk.mybatis.mapper.provider.ExampleProvider at java.lang.Class.newInstance(Class.java:427) at org.apache.ibatis.builder.annotation.ProviderSqlSource.createSqlSource(ProviderSqlSource.java:85) ... 74 more Caused by: java.lang.NoSuchMethodException: tk.mybatis.mapper.provider.ExampleProvider.() at java.lang.Class.getConstructor0(Class.java:3082) at java.lang.Class.newInstance(Class.java:412) ... 75 more
spring boot 整合mybatis 取别名时遇到问题
![![图片说明](https://img-ask.csdn.net/upload/201705/23/1495530657_491711.png)图片说明](https://img-ask.csdn.net/upload/20170 5/23/1495530644_177591.png)为什么这样查到的数据都是null??? http://blog.csdn.net/jrainbow/article/details/51980036 照着这个弄的一个框架 以前用搭建好的框架也是这样取个别名 get set 就可以得到的呀
gradle+spring boot+mybatis+PageHelper 分页无效
被折磨了一天,网上也找了很多解决办法,都不行,求助大神 如果PageHelper 降版本到4.0的话,PageInfo里的属性就全是空的, 直接用PageHelper.startPage(1, 2); 也没用。 ,不废话,直接上代码。 测试类: ``` @RunWith(SpringRunner.class) @SpringBootTest public class UserMappertest { @Autowired private UserMapper userMapper; @Test public void getAllByPage(){ Map<String,Object> map = new HashMap<String,Object>(); map.put("email", "a"); // map.put("id", "2"); PageHelper.startPage(1, 2,true);// 默认从第一页开始,每页五条 List<Map<String,Object>> users = userMapper.getAllByPage(map); PageInfo<Map<String,Object>> pageBlog = new PageInfo<Map<String,Object>>(users);// 将查出来的blogArticleList绑定到pageInfo中 System.out.println(">======page====>"+pageBlog.toString()); int a = 1; for(Map<String,Object> m:users) { System.out.println(">============users===a====>"+a); System.out.println(">============users===username====>"+m.get("username")); a++; } } } ``` 输出结果: ``` >======page====>PageInfo{pageNum=1, pageSize=7, size=7, startRow=0, endRow=6, total=7, pages=1, list=[{password=$76NoUnuTJ8iAtKIUi, name=qweq,id=1, avatar=//localhost:8081/view/5a9f9509c99a7138a8ea306c, email=i@om, username=admin}, {password=$2a$IUi, name=Wu, id=2, avatar=//localhost:8081/view/5a9f962ec99a7138a8ea306d, email=wa@wa.com, username=wau}, {password=$2a$1O7s3Jo4XW, name=是释放, id=3, avatar=//localhost:8081/view/5a9f9684c99a7138a8ea306e, email=12321@sfa.cn, username=wjy0703}, {password=123456, name=fs士大夫撒, id=4, avatar=//localhost:8081/view/5aa777c3c99a715b60793591, email=safdaf@ssfdsa.com, username=wjy}, {password=$2EXdOSDS, name=发大好时光, id=6, avatar=//localhost:8081/view/5aa77a8cc99a715b60793592, email=123212@sfa.cn, username=wjiyu}, {password=123456, name=搭顺风很舒服, id=7, email=safdafaaa@ssfdsa.com, username=qwe123}, {password=$2QB6cdbsAySst80C9FS, name=safddasfa, id=9, email=fas2f@sfa.com, username=abc123}], prePage=0, nextPage=0, isFirstPage=true, isLastPage=true, hasPreviousPage=false, hasNextPage=false, navigatePages=8, navigateFirstPage=1, navigateLastPage=1, navigatepageNums=[1]} >============users===a====>1 >============users===username====>admin >============users===a====>2 >============users===username====>waylau >============users===a====>3 >============users===username====>wjy0703 >============users===a====>4 >============users===username====>wjy >============users===a====>5 >============users===username====>wayu >============users===a====>6 >============users===username====>qwe123 >============users===a====>7 >============users===username====>abc123 ``` gradle配置 springBootVersion = '1.5.2.RELEASE': ``` // 添加 MySQL连接驱动 的依赖 compile('mysql:mysql-connector-java:6.0.5') // 添加 Apache Commons Lang 依赖 compile('org.apache.commons:commons-lang3:3.5') //mybatis依赖 compile('org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.0') //pagehelper依赖 compile('com.github.pagehelper:pagehelper:5.1.2') ``` mybatis-config.xml 配置: 下面使用"com.github.pagehelper.PageHelper"也不行,都不报错,也不能分页。 ``` <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <typeAliases> <typeAlias alias="Integer" type="java.lang.Integer" /> <typeAlias alias="Long" type="java.lang.Long" /> <typeAlias alias="HashMap" type="java.util.HashMap" /> <typeAlias alias="LinkedHashMap" type="java.util.LinkedHashMap" /> <typeAlias alias="ArrayList" type="java.util.ArrayList" /> <typeAlias alias="LinkedList" type="java.util.LinkedList" /> </typeAliases> <plugins> <plugin interceptor="com.github.pagehelper.PageInterceptor"> </plugin> </plugins> </configuration> ``` application.properties 配置: ``` #Thymeleaf spring.thymeleaf.encoding=UTF-8 #热部署静态文件 spring.thymeleaf.cache=false #使用HTML5标准 spring.thymeleaf.mode=HTML5 #DataSource spring.datasource.url=jdbc:mysql://localhost/boot?useSSL=false&serverTimezone=UTC&characterEncoding=utf-8 spring.datasource.username=boot spring.datasource.password=boot spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver # mybatis配置 mybatis.config-location=classpath:mybatis-config.xml // 配置文件位置 mybatis.typeAliasesPackage=com.educate.domain mybatis.mapper-locations=classpath:com/educate/mapper/**/*.xml mybatis.config-locations=classpath:mybatis/mybatis-config.xml #pagehelper分页插件配置 pagehelper.helperDialect=mysql pagehelper.reasonable=true pagehelper.supportMethodsArguments=true #JPA spring.jpa.show-sql=true spring.jpa.hibernate.ddl-auto=update ``` UserMapper.xml 配置: ``` <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <mapper namespace="com.educate.mapper.user.UserMapper" > <sql id="Base_Column_List" > id,name, username, password, email,avatar </sql> <sql id="Base_Column_Where" > where 1=1 <if test="id != null"> and id=#{id}</if> <if test="name != null"> and name like '%${name}%'</if> <if test="email != null"> and email like '%${email}%'</if> </sql> <select id="getAll" resultType="java.util.HashMap" parameterType="java.util.HashMap"> SELECT <include refid="Base_Column_List" /> FROM user <include refid="Base_Column_Where" /> </select> <select id="getAllByPage" resultType="java.util.HashMap"> SELECT <include refid="Base_Column_List" /> FROM user <include refid="Base_Column_Where" /> </select> </mapper> ``` UserMapper 代码: ``` @Mapper public interface UserMapper { List<Map<String,Object>> getAll(Map<String,Object> map); List<Map<String,Object>> getAllByPage(Map<String,Object> page); } ```
spring boot 建立项目 小白求教大神啊
总框架 spring boot + mybatis 1. 总项目命名为platform 2. 子项目一个common(基础类)data(存放dto),model, utils 3. 子项目dao 数据访问对象 4. 子项目business (以后项目业务服务全部在此项目中,关联common和dao) 目录结构config、controller、interceptor,scheduler,service 集成tk.mybatis 和 PageHelper 分页后台插件
java多模块maven整合spring boot+mybatis
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