Mapped Statements collection does not contain value for [namespace]

mybatis 入門練習項目報錯：

### Error updating database.  Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for c***********ent
### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for c***********ent
    at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:26)
    at ………………

原因在於session執行的映射文件名錯誤，與映射文件中<mapper namespace="***********">不一樣

// Test.java
SqlSession session = factory.openSession();
session.insert("com.lee.dao.IStudentMapper.saveStudent"); // 映射文件路徑

<!-- StuMapper.xml -->
<mapper namespace="com.lee.dao.IStudentMapper">