jsp中实现批量删除
提交页：
<%@ page language="java" import="java.util.*,java.sql.*,com.it.bean.*" pageEncoding="utf-8"%>
<jsp:useBean id="common" class="com.it.bean.pageinfo" scope="page"/>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<script language="javascript" type="text/javascript">
var flag=1;
function selectAll(){
if(flag==1){
if(common_delete.selectdelete.length!=undefined){
for (var i=0;i <common_delete.selectdelete.length;i++)
common_delete.selectdelete[i].checked=true;
}else{
common_delete.selectdelete.checked=true;
}
flag=0;
}else{
if(common_delete.selectdelete.length!=undefined){
for (var i=0;i <common_delete.selectdelete.length;i++)
common_delete.chxSong[i].checked=false;
}else{
common_delete.selectdelete.checked=false;
}
flag=1;
}
}
</script>
</head>
<body>
<div align="center">
<div align="center">
<form name="common_delete" method="post" action="../CommonDeleteServlet">
<table bgcolor="#FFFFFF" border="0" cellspacing="0" cellpadding="5">
<tr bgcolor="#cc99cc">
<td width="10%" align="center"><input type= "button" name= "selall " value= "全选/反选 " onClick= "selectAll();"></td>
<td width="10%" align="center"><font face="华文隶书" size="4">编号</font></td>
<td width="10%" align="center"><font face="华文隶书" size="4">描述</font></td>
<td width="10%" align="center"><font face="华文隶书" size="4">所属类</font></td>
<td width="20%" align="center"><font face="华文隶书" size="4">诊断</font></td>
<td width="10%" align="center"><font face="华文隶书" size="4">频率</font></td>
</tr>
<%
int i=0;
String setcolor;
try
{
ResultSet rst1=common.getCommon("100");
while(rst1.next())
{
if(i%2==0)
setcolor="#ffffff";
else
setcolor="#D9D9D9";
%>
<tr bgcolor=<%=setcolor%>>
<td width="10%" align="center"><input type="checkbox" name="selectdelete" value="<%=rst1.getString(1).trim()%>"></td>
<td width="10%" align="center"><font face="楷体_GB2312" size="3"><%=rst1.getString(1).trim()%></font></td>
<td width="10%" align="center"><font face="楷体_GB2312" size="3"><%=rst1.getString(3).trim()%></font></td>
<td width="10%" align="center"><font face="楷体_GB2312" size="3"><%=rst1.getString(2).trim()%></font></td>
<td width="20%" align="center"><font face="楷体_GB2312" size="3"><%=rst1.getString(4).trim()%></font></td>
<td width="10%" align="center"><font face="楷体_GB2312" size="3"><%=rst1.getInt(6)%></font></td>
</tr>
<%
i++;
}
rst1.close();
}
catch(Exception e){}
%>
<tr><td colspan="3"> </td>
<td align="center">
<input type="submit" value="删 除" onclick="return confirm('你确定所选？')"></td></tr>
</table>
</form>
</div>
</div>
</body>
</html>
处理页：
public class CommonDeleteServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
PrintWriter out=response.getWriter();
String[] selectdelete = request.getParameterValues("selectdelete");
String ids ="";
for(int i=0;i<selectdelete.length;i++){
ids += "'"+selectdelete[i]+"'";
if(i!=selectdelete.length-1) ids+=",";
}
String sql = "delete from COMMON where id in ("+ids+")";
Connection con = null;
Statement dodel = null;
DBcon dbcon = new DBcon();
try
{
con = dbcon.getConn();
dodel = con.createStatement();
dodel.executeUpdate(sql);
con.close();
}
catch(Exception e)
{
e.printStackTrace();
}
out.print("<script language='javascript'>alert('Do Success');window.location.href='delete.jsp';</script>");
out.flush();
out.close();
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
}
