struts2批量删除

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2012-10-27 12:48 997人阅读评论(0) 收藏举报

逻辑代码

[java] view plain copy

package com.stu2;
import java.util.ArrayList;
import java.util.List;
import java.sql.*;
import com.stu.Conn;
import com.stu.DBclose;
public class Stubean {
private Connection ct=null;
private PreparedStatement ps=null;
private ResultSet rs=null;
private Statement st=null;
public List all(){
List list=new ArrayList();
try{
ct=Conn.getinstance();
ps=ct.prepareStatement("select * from Stu ");
rs=ps.executeQuery();
Stu s=null;
while(rs.next()){
s=new Stu();
s.setId(rs.getInt(1));
s.setSname(rs.getString(2));
s.setClasses(rs.getString(3));
list.add(s);
}
}catch(Exception e){
e.printStackTrace();
}finally{
DBclose.close(ct, ps, rs);
}
return list;
}
public void delete(String id){
try{
ct=Conn.getinstance();
st=ct.createStatement();
st.addBatch("delete from Stu where id="+id+"");
st.executeBatch();
}catch(Exception e){
e.printStackTrace();
}finally{
DBclose.close(ct, ps);
}
}
}

Action类

[java] view plain copy

package com.stu2;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class StuAction extends ActionSupport{
private List list;
public List getList() {
return list;
}
public void setList(List list) {
this.list = list;
}
@Override
public String execute() throws Exception {
Stubean sb=new Stubean();
list=sb.all();
return SUCCESS;
}
public String remove(){
Stubean sb=new Stubean();
HttpServletRequest q=ServletActionContext.getRequest();
String id[]=q.getParameterValues("choice");
for(int i=0;i<id.length;i++){
sb.delete(id[i]);
}
list=sb.all();
return SUCCESS;
}
}

删除页面

[html] view plain copy

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<style type="text/css">
table{ border:0;border-collapse:collapse;}
td{ font:normal 12px/17px Arial;padding:2px;width:100px;}
th{ font:bold 12px/17px Arial;text-align:left;padding:4px;border-bottom:1px solid #333;}
.even{ background:#FFF38F;} /* 偶数行样式*/
.odd{ background:#FFFFEE;} /* 奇数行样式*/
.selected{ background:#FF6500;color:#fff;}
</style>
<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>
<script type="text/javascript">
//插件编写
(function ($) {
$.fn.extend({
"alterBgColor": function (options) {
//设置默认值
options = $.extend({
odd: "odd", /* 偶数行样式*/
even: "even", /* 奇数行样式*/
selected: "selected" /* 选中行样式*/
}, options);
$("tbody>tr:odd", this).addClass(options.odd);
$("tbody>tr:even", this).addClass(options.even);
$('tbody>tr', this).click(function () {
//判断当前是否选中
var hasSelected = $(this).hasClass(options.selected);
//如果选中，则移出selected类，否则就加上selected类
$(this)[hasSelected ? "removeClass" : "addClass"](options.selected)
//查找内部的checkbox,设置对应的属性。
.find(':checkbox').attr('checked', !hasSelected);
});
//表头中的checkbox （全选反选）
$("thead>tr th:first :checkbox:first ").click(function () {
//判断当前是否选中
var hasSelected = $(this).attr("checked");
//如果选中，则移出selected类，否则就加上selected类
$('tbody>tr')[!hasSelected ? "removeClass" : "addClass"](options.selected);
if (hasSelected)
$('tbody>tr :checkbox').attr("checked",true);
else
$('tbody>tr :checkbox').attr("checked",false);
});
// 如果单选框默认情况下是选择的，则高色.
$('tbody>tr:has(:checked)', this).addClass(options.selected);
return this; //返回this，使方法可链。
}
});
})(jQuery);
//插件应用
$(function(){
$("#remove").click(function(){
if($(":checkbox[name=choice]:checked").size()==0){
alert("请选择一行");
return false;
}
});
$("#table2")
.alterBgColor() //应用插件
.find("th").css("color","red");//可以链式操作
});
</script>
<base href="<%=basePath%>">
<title>My JSP 'All.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form action="delete.action" method="post">
<table id="table2">
<tr><input type="submit" value="删除" id="remove"/></tr>
<thead><tr><th><input type="checkbox"/></th><th>编号</th><th>姓名</th><th>班级</th></tr></thead>
<tbody>
<s:iterator value="list">
<tr>
<td><input type="checkbox" name="choice" value="<s:property value='id'/>"/></td>
<td><s:property value="id"/></td>
<td><s:property value="sname"/></td>
<td><s:property value="classes"/></td>
</tr>
</s:iterator>
</tbody>
</table>
<input type="hidden" value="<s:property value='id'/>" />
</form>
<s:debug></s:debug>
</body>
</html>