跑了一年的代码报错。。。 ``` bash 022-11-10 17:22:19.628 [http-nio-60051-exec-6] ERROR c.g.p.e.ExceptionProcessHandler - Invalid bound statement (not found): xx业务Mapper.selectBatchIds org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): xx业务Mapper.selectBatchIds at org.apache.ibatis.binding.MapperMethod$SqlCommand.(MapperMethod.java:235) at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.(MybatisMapperMethod.java:50) at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.lambda$cachedInvoker$0(MybatisMapperProxy.java:111) at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(Unknown Source) at com.baomidou.mybatisplus.core.toolkit.CollectionUtils.computeIfAbsent(CollectionUtils.java:115) at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.cachedInvoker(MybatisMapperProxy.java:98) at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:89) at com.sun.proxy.$Proxy120.selectBatchIds(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at com.baomidou.dynamic.datasource.aop.DynamicDataSourceAnnotationInterceptor.invoke(DynamicDataSourceAnnotationInterceptor.java:50) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) at com.sun.proxy.$Proxy121.selectBatchIds(Unknown Source) ``` 原本的代码 ``` java @DS("xxxx") public List getxx业务s(List uid) { return xx业务Mapper.selectBatchIds(uid); } ``` 可能原因 #### 1.mapper.xml 里面的 namespace与实际类不一样 排查,一致 #### 2.mapper接口的函数名称和mapper.xml里面的标签id不一致 selectBatchIds 是com.baomidou.mybatisplus.core.mapper.BaseMapper 的默认方法 修复的代码 ``` java @DS("xxxx") public List getxx业务s(List uid) { return xx业务Mapper.selectList(new LambdaQueryWrapper() .in(xx业务::getUid, uid) ); } ```