zbb20171215 MyBatis报错: Parameter '*' not found. Available parameters are [1, 0, param1, param2]

mapper代理接口中的方法:

  public User login(String loginid,String loginpwd) throws Exception;

mapper.xml中的代码:

  <select id="login" parameterType="String" resultType="User">
    SELECT * FROM `user` WHERE LoginID='#{loginid}' and LoginPwd='#{loginpwd}' AND Role=2
  </select>

 

调用login()时出现Parameter 'loginid' not found. Available parameters are [1, 0, param1, param2]的错误。

 

解决方案:

 当只传一个参数到sql语句时,可以直接写参数名,当传多个参数时,应当这样写(多个参数已#{0}开始):

1
public User login(String loginid,String loginpwd) throws Exception;

 

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2
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<select id="loginByTeacher" parameterType="String" resultType="User">
    SELECT * FROM `user` WHERE LoginID=#{0} and LoginPwd=#{1} AND Role=2
 </select>

  

 

参考:http://www.2cto.com/database/201409/338155.html

posted @ 2018-01-02 11:36  DaryllD  阅读(336)  评论(0编辑  收藏  举报