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

ssm中报一下错误：

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：

mapper的namespace写的不对！！！注意系修改。

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

3. userdao的方法返回值是list<user>,而select元素没有正确配置resultmap,或者只配置resulttype!

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...

转载自http://blog.csdn.net/two_people/article/details/51984516