方式一：把list或者陣列包裝到map中，傳遞到mapper檔案中的引數是map

1、把陣列包裝到map中：

java程式碼：

Long[] id = {1,2};
Map queryMap = new HashMap();
queryMap.put("id", id);
getSqlSession().update(queryMap, "deleteConbineCode");

xml

<update id="deleteConbineCode" parameterType="map">
        DELETE from combine_code_normal
        where id in
        <foreach item="item" index="index" collection="id" open="("  separator="," close=")">  
            #{item}  
        </foreach>  
    </update>
 

2、把list<物件>包裝到map中

java程式碼

<pre code_snippet_id="612746" snippet_file_name="blog_20150305_1_7164380" name="code" class="java" style="font-size: 14px;">Map tMap = new HashMap();tMap.put("id",1);tMap.put("id",2);

List<Map> list = new ArrayList<Map>();<pre code_snippet_id="612746" snippet_file_name="blog_20150305_1_7164380" name="code" class="java" style="font-size: 14px;"><pre name="code" class="javascript" style="font-size: 14px;">list.add(tMap);<pre name="code" class="javascript" style="font-size: 14px;">//上面構造了一個集合，集合裡面是Map物件
 

Map queryMap = new HashMap();
queryMap.put("id",<span style="font-family: Arial, Helvetica, sans-serif;">list</span><span style="font-family: Arial, Helvetica, sans-serif;">);</span>

getSqlSession().update(queryMap, "deleteConbineCode");

<update id="deleteConbineCode" parameterType="map">
        DELETE from combine_code_normal
        where id in
        <foreach item="item" index="index" collection="id" open="("  separator="," close=")">  
            #{item.id}  
        </foreach>  
    </update>
 

java程式碼

//上面構造了一個集合，集合裡面是基本型別
List<Integer> list = new ArrayList<Integer>();
list.add(1);
list.add(3);
Map queryMap = new HashMap();
queryMap.put("id",list);
getSqlSession().update(queryMap, "deleteConbineCode");

xml

<update id="deleteConbineCode" parameterType="map">
        DELETE from combine_code_normal
        where id in
        <foreach item="item" index="index" collection="id" open="("  separator="," close=")">  
            #{item}  
        </foreach>  
    </update>

方式二：直接使用陣列或者list作為引數傳遞到mapper檔案
1、list方式：

java程式碼：

//構造了一個集合，集合裡面是基本型別
List<Integer> list = new ArrayList<Integer>();
list.add(1);
list.add(2);
List<Map> = getSqlSession().selectList(sqlName,list);

<select id="selectTotalImpression1"  resultType="java.util.Map">
	SELECT * FROM iams_adplacement_impression
	WHERE TO_DAYS(NOW()) - TO_DAYS(FROM_UNIXTIME(time)) >= 1
		AND adplacement_id in 
		<foreach collection="list" index="index" item="item" open="(" separator="," close=")">  
	            	#{item}   
	    	</foreach> 
</select>

//構造了一個數組，數組裡面是基本型別
Integer[] ids = {1,2};
List<Map> = getSqlSession().selectList(sqlName,ids);

<select id="selectTotalImpression1"  resultType="java.util.Map">
	SELECT * FROM iams_adplacement_impression
	WHERE TO_DAYS(NOW()) - TO_DAYS(FROM_UNIXTIME(time)) >= 1
	AND adplacement_id in 
		<foreach collection="array" index="index" item="item" open="(" separator="," close=")">  
	            	#{item}   
	    	</foreach> 
</select>

如果傳入的是單引數且引數型別是一個List的時候，collection屬性值為list .
如果傳入的是單引數且引數型別是一個array陣列的時候，collection的屬性值為array