MyBatis中接口代理异常org.apache.ibatis.binding.BindingException: Type * is not known to the MapperRegistry
2024-05-07 10:48:15
异常位置:
sqlSession.getMapper(studentMapper.class);
获得目标接口实现类对象时报错;
解决办法:
1. 映射配置文件中的空间名称是否与目标接口的全类名相同;
2. 映射配置文件中增删改查标签的名字是否与目标接口的方法名相同;
3. 核心配置文件中引入指定的映射配置文件是否正确
异常内容:
org.apache.ibatis.binding.BindingException: Type interface com.itheima.demo1.studentMapper is not known to the MapperRegistry.at org.apache.ibatis.binding.MapperRegistry.getMapper(MapperRegistry.java:47)at org.apache.ibatis.session.Configuration.getMapper(Configuration.java:779)at org.apache.ibatis.session.defaults.DefaultSqlSession.getMapper(DefaultSqlSession.java:291)at com.itheima.demo1.test1.selectall(test1.java:31)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:567)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.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)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$2.evaluate(ParentRunner.java:268)at org.junit.runners.ParentRunner.run(ParentRunner.java:363)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)Process finished with exit code -1
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