跑了一年的代码报错。。。

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$SqlCommand.<init>(MapperMethod.java:235)
	at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.<init>(MybatisMapperMethod.java:50)
	at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.lambda$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

@DS("xxxx")
public List<xx业务> getxx业务s(List<Long> 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<xx业务> 的默认方法

修复的代码

@DS("xxxx")
public List<xx业务> getxx业务s(List<Long> uid) {
		return  xx业务Mapper.selectList(new LambdaQueryWrapper<xx业务>()
			.in(xx业务::getUid, uid)
	);
}