mybatis一个怪异的问题: Invalid bound statement (not found)

原文链接：http://blog.csdn.net/on_my_way20xx/article/details/9178989

Invalid bound statement (not found): me.tspace.pm.dao.UserDao.getUser

at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:178)

at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:38)

at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:49)

at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:42)

at $Proxy22.getUser(Unknown Source)

........................

........................

Caused by: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for me.tspace.pm.dao.UserDao.getUser
at org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:775)

at org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:615)

at org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:608)

at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:176)

... 34 more

三种情况：

1.

<mapper namespace="me.tspace.pm.dao.UserDao">

mapper的namespace写的不对！！！注意系修改。

2.

UserDao的方法在UserDao.xml中没有，然后执行UserDao的方法会报此

3. 删除配置文件里中文的注释,保存.

4. 如果你确认没有以上问题,请任意修改下对应的xml文件,比如删除一个空行,保存.问题解决...