org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)

mybatis绑定无效问题

1、XML文件无法找到

2、xml文件中sql id和接口方法名不一致

3、存在多余的空格

4、返回值出错

5、编译文件中缺少xml文件  这种情况一般存在于maven项目，在pom.xml中添加

<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.*</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>