spring-boot配置Mybatis的时候总是出现这样的情况。
控制台显示错误：
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.example.demo.dao.mapper.clDao.queryAll
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SqlCommand.<init>(MapperMethod.java:235) ~[mybatis-3.5.6.jar:3.5.6] at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:53) ~[mybatis-3.5.6.jar:3.5.6] at org.apache.ibatis.binding.MapperProxy.lambda
SqlCommand.<init>(MapperMethod.java:235) [mybatis−3.5.6.jar:3.5.6]atorg.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:53) [mybatis−3.5.6.jar:3.5.6]atorg.apache.ibatis.binding.MapperProxy.lambdacachedInvoker
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0(MapperProxy.java:115) ~[mybatis-3.5.6.jar:3.5.6] at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_171] at org.apache.ibatis.binding.MapperProxy.cachedInvoker(MapperProxy.java:102) ~[mybatis-3.5.6.jar:3.5.6] at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:85) ~[mybatis-3.5.6.jar:3.5.6] at com.sun.proxy.
0(MapperProxy.java:115) [mybatis−3.5.6.jar:3.5.6]atjava.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) [na:1.8.0171]atorg.apache.ibatis.binding.MapperProxy.cachedInvoker(MapperProxy.java:102) [mybatis−3.5.6.jar:3.5.6]atorg.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:85) [mybatis−3.5.6.jar:3.5.6]atcom.sun.proxy.Proxy73.queryAll(Unknown Source) ~[na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_171]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_171]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) ~[spring-aop-5.3.4.jar:5.3.4]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.3.4.jar:5.3.4]
解决方法：
在application.properties里加上
mybatis.mapperLocations=classpath:com/example/demo/dao/sqlmap/*.xml
或者是这一段路径写错了修改一下。之后便可以查询出来。
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