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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                **1.UserMapper.java** ~~~ //通過id修改名稱 id name兩個參數 便是多條件 int updateNameById(int id, String name); ~~~ **2.UserMapper.xml** **方式一:使用 arg** ~~~ <update id="updateNameById"> update t_user set u_name=#{arg1} where u_id=#{arg0} </update> ~~~ **方式二:使用param** ~~~ <!--注:arg開始為arg0 param開始為param1--> <update id="updateNameById"> update t_user set u_name=#{param2} where u_id=#{param1} </update> ~~~ **方式三:使用注解** 3.1修改UserMapper.java ~~~ //通過id修改名稱 id name兩個參數 便是多條件 int updateNameById(@Param("id") int id, @Param("name") String name); ~~~ 3.2 UserMapper.xml ~~~ <update id="updateNameById"> update t_user set u_name=#{name} where u_id=#{id} </update> ~~~
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