xml配置如下:<update id="updateUsers" parameterType="java.util.List"> <foreach collection="users" item="item" index="index" open="" close="" separator=";">update user  <set> parent_id = 0  </set> where id = ${item.id} and bjid = ${item.bjid} and njid = ${item.njid}  </foreach> </update> mapper如下:Integer updateUsers(@Param("users") List<user> users); 調(diào)用： userDao.updateUsers(userList); 異常信息如下：org.mybatis.spring.MyBatisSystemException:nested exception is org.apache.ibatis.exceptions.PersistenceException: \n### Error updating database. Cause: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long\n### The error may involve com.kjm.calm.mmapper.UserDao.updateUserInfo-Inline\n### The error occurred while setting parameters\n### SQL: \n### Cause: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long