6.引數繫結-陣列型別(傳智播客)
阿新 • • 發佈：2018-11-20
需求:通過陣列批量刪除商品資訊
1.controller層開發
//通過陣列批量刪除商品資訊 @RequestMapping(value = "/deleteItemsByItemIds") public ModelAndView deleteItemsByItemIds(Integer [] items_id) throws Exception{ ModelAndView modelAndView = new ModelAndView(); //將陣列轉換為列表 List<Integer> integerList = Arrays.asList(items_id); ItemsCustom itemsCustom = new ItemsCustom(); itemsCustom.setIntegerList(integerList); int rs = itemsService.deleteItemByIds(itemsCustom); if(rs != 0) { modelAndView.setViewName("items/success"); }else{ modelAndView.setViewName("items/failed"); } return modelAndView; }
2.service層開發
//通過陣列批量刪除商品資訊
int deleteItemByIds(ItemsCustom itemsCustom) throws Exception;
//通過陣列批量刪除商品資訊
@Override
public int deleteItemByIds(ItemsCustom itemsCustom) throws Exception {
return itemsMapperCustom.deleteItemByIds(itemsCustom);
}
3.dao層開發
//通過陣列批量刪除商品資訊 int deleteItemByIds(ItemsCustom itemsCustom) throws Exception;
<!--通過陣列批量刪除商品資訊--> <delete id="deleteItemByIds" parameterType="itemsCustom"> delete from item <where> <if test="integerList!=null and integerList.size>0"> <foreach collection="integerList" open=" and item_id in( " close=" ) " item="item_id" separator="," > #{item_id} </foreach> </if> </where> </delete>
public class ItemsCustom extends Items {
private int id;
private List<Integer> integerList;
//get和set方法......
}
4.web層開發
<head>
<script type="text/javascript">
function deleteItemsByIds(){
document.itemQueryForm.action="${pageContext.request.contextPath}/items/deleteItemsByItemIds";
document.itemQueryForm.submit();
}
</script>
</head>
<form id="itemQueryForm" name="itemQueryForm" method="post">
查詢條件：
<table width="100%" border=1>
<tr>
<td><input type="text" name="itemsCustom.itemName"/></td>
<td><input type="submit" value="查詢" onclick="queryItemByItemName()"/></td>
<td><input type="button" value="批量刪除" onclick="deleteItemsByIds()"/></td>
</tr>
</table>
商品列表：
<table width="100%" border=1>
<tr>
<td>選擇</td>
<td>商品編號</td>
<td>商品名稱</td>
<td>商品價格</td>
<td>商品描述</td>
<td>操作</td>
</tr>
<c:forEach items="${itemsList}" var="item">
<tr>
<td><input type="checkbox" name="items_id" value="${item.itemId}"/></td>
<td>${item.itemId}</td>
<td>${item.itemName}</td>
<td>${item.itemPrice}</td>
<td>${item.itemDetail}</td>
<td><a href="${pageContext.request.contextPath}/items/selectItem?item_id=${item.itemId}">修改</a></td>
</tr>
</c:forEach>
</table>
</form>