Druid + Mybatis批量增删写法

org.springframework.jdbc.UncategorizedSQLException: 
### Error updating database.  Cause: java.sql.SQLException: sql injection violation, syntax error: syntax error, error in :……

数据库操作报上面的错误,是由于Druid连接池开启了SQL注入防火墙。

原来批量删除记录是按主键,做循环删除,原以为这样偷懒就搞定了,结果被Druid挡住。老老实实的写批量删除吧,用的是Mybatis:

  <delete id="deleteBatch" parameterType="java.lang.String">
    delete from table1
    where id IN (
    <foreach collection="list" item="item" separator=",">
       #{item.stuId,jdbcType=VARCHAR}
    </foreach>
    )    
  </delete>

mapper类中这么写:

int deleteBatch(@Param("list") List<Student> list);

另外,插入操作也存在类似问题,需要批量处理,示例:

  <insert id="insertBatch" >
    insert into table1 (id, col1, col2) values
    <foreach collection="list" item="item" separator=",">
        (
        #{item.id,jdbcType=VARCHAR},
        #{item.stuName,jdbcType=VARCHAR},
        #{item.stuAge,jdbcType=VARCHAR}
        )
    </foreach>
  </insert>

mapper类中这么写:

int insertBatch(@Param("list") List<Student> list);




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转载自blog.csdn.net/softwave/article/details/80945905