需求:通过数组批量删除商品信息
1.controller层开发
//通过数组批量删除商品信息
@RequestMapping(value = "/deleteItemsByItemIds")
public ModelAndView deleteItemsByItemIds(Integer [] items_id) throws Exception{
ModelAndView modelAndView = new ModelAndView();
//将数组转换为列表
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层开发
//通过数组批量删除商品信息
int deleteItemByIds(ItemsCustom itemsCustom) throws Exception;
//通过数组批量删除商品信息
@Override
public int deleteItemByIds(ItemsCustom itemsCustom) throws Exception {
return itemsMapperCustom.deleteItemByIds(itemsCustom);
}
3.dao层开发
//通过数组批量删除商品信息
int deleteItemByIds(ItemsCustom itemsCustom) throws Exception;
<!--通过数组批量删除商品信息-->
<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层开发
<head>
<script type="text/javascript">
function deleteItemsByIds(){
document.itemQueryForm.action="${pageContext.request.contextPath}/items/deleteItemsByItemIds";
document.itemQueryForm.submit();
}
</script>
</head>
<form id="itemQueryForm" name="itemQueryForm" method="post">
查询条件:
<table width="100%" border=1>
<tr>
<td><input type="text" name="itemsCustom.itemName"/></td>
<td><input type="submit" value="查询" onclick="queryItemByItemName()"/></td>
<td><input type="button" value="批量删除" onclick="deleteItemsByIds()"/></td>
</tr>
</table>
商品列表:
<table width="100%" border=1>
<tr>
<td>选择</td>
<td>商品编号</td>
<td>商品名称</td>
<td>商品价格</td>
<td>商品描述</td>
<td>操作</td>
</tr>
<c:forEach items="${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>