Mybatis大字段clob处理

2022-08-23 10:17:58

1. 实体类View

package com.ttt.sysManager.po;

public class View {
	private String VIEW_NAME;
	private String TEXT_LENGTH;
	private String TEXT;<span style="white-space:pre">	</span>// clob大字段
	private String EDITIONING_VIEW;
	private String READ_ONLY;
        // ...(get、set方法)
	
}


2. Dao

List<View> getViewByPage(Map<String, Object> map);

3. XML

<resultMap id="viewResultMap" type="com.ttt.sysManager.po.View">     
        <result property="VIEW_NAME" column="VIEW_NAME"/>
        <result property="TEXT_LENGTH" column="TEXT_LENGTH"/>  
        <result property="TEXT" column="TEXT" javaType="String" jdbcType="VARBINARY"/>  
        <result property="EDITIONING_VIEW" column="EDITIONING_VIEW" />  
        <result property="READ_ONLY" column="READ_ONLY" />  
</resultMap>  
	
<select id="getViewByPage" parameterType="map" resultMap="viewResultMap" >
	SELECT VIEW_NAME,TEXT_LENGTH,TEXT,EDITIONING_VIEW,READ_ONLY FROM (
		SELECT A.*,  ROWNUM RN
 			FROM (SELECT * FROM user_views) A
 			WHERE ROWNUM <![CDATA[<=]]> #{endRow}
 	) WHERE RN <![CDATA[>]]> #{startRow}
</select>


4. 写入

写入大字段与普通写入无区别,但是数据库字段类型需为clob,如为blob会报错,暂不解决。


  • 作者:公子
  • 原文链接:https://blog.csdn.net/gongzi2311/article/details/49073655
    更新时间:2022-08-23 10:17:58