Mybatis學習中遇到的異常(2)

org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map pers.yijin.mapper.UserMapper.int

at org.apache.ibatis.builder.MapperBuilderAssistant.setStatementParameterMap(MapperBuilderAssistant.java:319)

at org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:283)

at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:107)

at org.apache.ibatis.session.Configuration.buildAllStatements(Configuration.java:698)

at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:668)

at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:663)

at org.apache.ibatis.binding.MapperMethod SqlCommand.(MapperMethod.java:180)atorg.apache.ibatis.binding.MapperMethod.(MapperMethod.java:43)atorg.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:58)atorg.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:51)at Proxy5.findUsernameById(Unknown Source)

at pers.yijin.test.UserMapperTest.test(UserMapperTest.java:37)

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.junit.runners.model.FrameworkMethod 1.runReflectiveCall(FrameworkMethod.java:44)atorg.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)atorg.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)atorg.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)atorg.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)atorg.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)atorg.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)atorg.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)atorg.junit.runners.ParentRunner 3.run(ParentRunner.java:193)

at org.junit.runners.ParentRunner 1.schedule(ParentRunner.java:52)atorg.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)atorg.junit.runners.ParentRunner.access 000(ParentRunner.java:42)

at org.junit.runners.ParentRunner 2.evaluate(ParentRunner.java:184)atorg.junit.runners.ParentRunner.run(ParentRunner.java:236)atorg.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)atorg.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)Causedby:java.lang.IllegalArgumentException:ParameterMapscollectiondoesnotcontainvalueforpers.yijin.mapper.UserMapper.intatorg.apache.ibatis.session.Configuration StrictMap.get(Configuration.java:797)

at org.apache.ibatis.session.Configuration.getParameterMap(Configuration.java:570)

at org.apache.ibatis.builder.MapperBuilderAssistant.setStatementParameterMap(MapperBuilderAssistant.java:317)

… 35 more

這個原因是把parameterType寫成了parameterMap，以後一定注意！