org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.dao.mapper.UserInfoMapper.countByExample
at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:196)
at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:44)
at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:59)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
at com.sun.proxy.$Proxy93.countByExample(Unknown Source)
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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java
报错原因是Mapper.xml文件中没有id为countByExample的语句
如果出现:
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)
一般的原因是Mapper interface和xml文件的定义对应不上,需要检查包名,namespace,函数名称等能否对应上,需要比较细致的对比,
我经常就是写错了一两个字母搞的很长时间找不到错误
按以下步骤一一执行:
1:检查xml文件所在的package名称是否和interface对应的package名称一一对应
2:检查xml文件的namespace是否和xml文件的package名称一一对应
3:检查函数名称能否对应上
4:去掉xml文件中的中文注释
5:随意在xml文件中加一个空格或者空行然后保存
6: mapper.xml文件没有被扫描到
一般来说到此就可以排除错误了
mybatis Mapper插件中,updateByPrimaryKey 方法在使用时,入参必须包含id,
实际使用的sql如下:
2016-11-14 11:23:18.885 DEBUG 640 --- [ main] t.m.s.m.U.updateByPrimaryKey : ==> Preparing: UPDATE user_info SET username = ?,password = ?,usertype = ?,enabled = ?,qq = ?,email = ?,tel = ? WHERE Id = ?
2016-11-14 11:23:18.915 DEBUG 640 --- [ main] t.m.s.m.U.updateByPrimaryKey : ==> Parameters: test1(String), 12345678(String), 1(String), null, null, null, null, null
2016-11-14 11:23:18.924 DEBUG 640 --- [ main] t.m.s.m.U.updateByPrimaryKey : <== Updates: 0
如果只想更新指定字段的值,可以使用api: userInfoMapper.updateByPrimaryKeySelective
/**
* 根据主键更新属性不为null的值
*
* @param record
* @return
*/
@UpdateProvider(type = BaseUpdateProvider.class, method = "dynamicSQL")
int updateByPrimaryKeySelective(T record);