Spring+MyBatis 错误:org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.b

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   今天用SSM框架做一个项目的时候,在进行简单的测试,发现一个错误,而这个坑在我毕设的时候遇到一次忘记了,这回要记下来。

   

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter 'groupName' not
found. Available parameters are [0, 1, param1, param2]

at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:79)at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:447)at com.sun.proxy.$Proxy19.update(Unknown Source)at org.mybatis.spring.SqlSessionTemplate.update(SqlSessionTemplate.java:295)at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:62)at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)at com.sun.proxy.$Proxy20.updateByPrimaryKey(Unknown Source)at com.user.group.service.GroupService.updateByPrimaryKey(GroupService.java:38)at TestOne.selectUsersInGroup(TestOne.java:54)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:497)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)at org.junit.runners.ParentRunner.run(ParentRunner.java:363)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262)at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)Caused by: org.apache.ibatis.binding.BindingException: Parameter 'groupName' not found. Available parameters are [0, 1, param1, param2]at org.apache.ibatis.binding.MapperMethod$ParamMap.get(MapperMethod.java:195)at org.apache.ibatis.reflection.wrapper.MapWrapper.get(MapWrapper.java:45)at org.apache.ibatis.reflection.MetaObject.getValue(MetaObject.java:122)at org.apache.ibatis.scripting.defaults.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:79)at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:93)at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:64)at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:86)at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:49)at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)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:497)at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63)at com.sun.proxy.$Proxy26.update(Unknown Source)at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434)... 40 more
 
void updateByPrimaryKey( String groupId, String groupName);
经测试应该是忘了使用@Param。当只有一个参数时,Mapper中可以不使用,应该使用如下:
void updateByPrimaryKey(@Param("groupId") String groupId,@Param("groupName") String groupName);

这样就可以解决了。

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