MyBatis 批量更新，批量更新

Mapper的内容如下：

package com.xxx.user.mapper;

import com.baomidou.mybatisplus.mapper.BaseMapper;
import com.xxx.user.entity.TbSysUserPhoneBelong;

import java.util.List;

/**
 * 

 * 功能：
 * 
 *
 * @author tuzq
 * Copyright 2018 xxx.com, Inc. All rights reserved
 * @version v1.0
 * @ClassName: xxxx
 * @date 2018/3/22
 */
public interface TbSysUserPhoneBelongMapper extends BaseMapper {

    /**
     * 归属地相关的批处理
     * @param phoneBelongs       :归属地list
     */
    public void insertBatch(@Param("phoneBelongs")List phoneBelongs);
}

xml的内容如下：
要注意的是，不要INSERT INTO里面不要加id

		
			SELECT LAST_INSERT_ID()
		
		INSERT INTO
			xxxxx
			(
				xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx,
		        xxx
			)
		VALUES
		
			(
				#{item.id},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.types},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.xx},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.xxx},
			    #{item.xxx}
			)
		

批量更新
具体参考：https://blog.csdn.net/xyjawq1/article/details/74129316

Mapper.java文件中的定义如下：

public void updateBatchById(@Param("keywordsList")List keywordsList);

mapper.xml中的内容如下

        update mydata_table
        
            
                
                     when id=#{item.id} then #{item.status}
                
            
        
        where id in
        
            #{item.id,jdbcType=BIGINT}
        
    

方法二：

        
            UPDATE
                XXX
            
                
                    
                        article_id = #{item.articleId},
                    
                    
                        keywords = #{item.keywords},
                    
                    xxxxxx
                
            
            WHERE
            id = #{item.id}
        
    

这种方法可能会报：

Caused by: java.sql.SQLException: sql injection violation, multi-statement not allow : update device_bd_token 
                 SET access_token=? 
                where device_id = ?
          ; 
                update device_bd_token 
                 SET access_token=? 
                where device_id = ?
	at com.alibaba.druid.wall.WallFilter.check(WallFilter.java:714)
	at com.alibaba.druid.wall.WallFilter.connection_prepareStatement(WallFilter.java:240)
	at com.alibaba.druid.filter.FilterChainImpl.connection_prepareStatement(FilterChainImpl.java:448)
	at com.alibaba.druid.filter.FilterAdapter.connection_prepareStatement(FilterAdapter.java:928)
	at com.alibaba.druid.filter.FilterEventAdapter.connection_prepareStatement(FilterEventAdapter.java:122)
	at com.alibaba.druid.filter.FilterChainImpl.connection_prepareStatement(FilterChainImpl.java:448)
	at com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl.prepareStatement(ConnectionProxyImpl.java:342)
	at com.alibaba.druid.pool.DruidPooledConnection.prepareStatement(DruidPooledConnection.java:318)

原因是druid给控制住了，解决办法是：