解决org.apache.ibatis.binding.BindingException: Type interface xxx is not known to the MapperRegistry

运行SpringMVC时控制台报错

D:\Java\jdk1.8.0_131\bin\java.exe -ea -Didea.test.cyclic.buffer.size=1048576 -javaagent:D:\IntelliJ_IDEA\lib\idea_rt.jar=55364:D:\IntelliJ_IDEA\bin -Dfile.encoding=UTF-8 -classpath D:\IntelliJ_IDEA\lib\idea_rt.jar;D:\IntelliJ_IDEA\plugins\junit\lib\junit-rt.jar;D:\IntelliJ_IDEA\plugins\junit\lib\junit5-rt.jar;D:\Java\jdk1.8.0_131\jre\lib\charsets.jar;D:\Java\jdk1.8.0_131\jre\lib\deploy.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\access-bridge-64.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\cldrdata.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\dnsns.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\jaccess.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\jfxrt.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\localedata.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\nashorn.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\sunec.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\sunjce_provider.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\sunmscapi.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\sunpkcs11.jar;D:\Java\jdk1.8.0_131\jre\lib\ext\zipfs.jar;D:\Java\jdk1.8.0_131\jre\lib\javaws.jar;D:\Java\jdk1.8.0_131\jre\lib\jce.jar;D:\Java\jdk1.8.0_131\jre\lib\jfr.jar;D:\Java\jdk1.8.0_131\jre\lib\jfxswt.jar;D:\Java\jdk1.8.0_131\jre\lib\jsse.jar;D:\Java\jdk1.8.0_131\jre\lib\management-agent.jar;D:\Java\jdk1.8.0_131\jre\lib\plugin.jar;D:\Java\jdk1.8.0_131\jre\lib\resources.jar;D:\Java\jdk1.8.0_131\jre\lib\rt.jar;D:\idea_workspace\SpringMVC\SpringMVC_02\target\test-classes;D:\idea_workspace\SpringMVC\SpringMVC_02\target\classes;D:\oxy\MyRepository\junit\junit\4.12\junit-4.12.jar;D:\oxy\MyRepository\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar;D:\oxy\MyRepository\org\springframework\spring-webmvc\4.3.10.RELEASE\spring-webmvc-4.3.10.RELEASE.jar;D:\oxy\MyRepository\org\springframework\spring-aop\4.3.10.RELEASE\spring-aop-4.3.10.RELEASE.jar;D:\oxy\MyRepository\org\springframework\spring-beans\4.3.10.RELEASE\spring-beans-4.3.10.RELEASE.jar;D:\oxy\MyRepository\org\springframework\spring-context\4.3.10.RELEASE\spring-context-4.3.10.RELEASE.jar;D:\oxy\MyRepository\org\springframework\spring-core\4.3.10.RELEASE\spring-core-4.3.10.RELEASE.jar;D:\oxy\MyRepository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;D:\oxy\MyRepository\org\springframework\spring-expression\4.3.10.RELEASE\spring-expression-4.3.10.RELEASE.jar;D:\oxy\MyRepository\org\springframework\spring-web\4.3.10.RELEASE\spring-web-4.3.10.RELEASE.jar;D:\oxy\MyRepository\org\mybatis\mybatis\3.4.1\mybatis-3.4.1.jar;D:\oxy\MyRepository\mysql\mysql-connector-java\5.1.43\mysql-connector-java-5.1.43.jar com.intellij.rt.execution.junit.JUnitStarter -ideVersion5 -junit4 com.zs.test.StudentTest

org.apache.ibatis.binding.BindingException: Type interface com.zs.dao.StudentDao 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:717)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.getMapper(DefaultSqlSession.java:292)
	at com.zs.test.StudentTest.test(StudentTest.java:34)
	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.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.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	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$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)


Process finished with exit code -1

解决办法

检查定义的接口和实体类映射的接口名是否一致


特别注意的是当项目只有一个包的时候可以只写com.zs.dao，但是有多个包，要具体到类名com.zs.dao.StudentDao