savedata.jsp

采用JSP + Ajax + 文本来演示多选、全选

<%@ page language="java" contentType="text/html; charset=GBK" pageEncoding="GBK" %>
<%@ page import="java.util.*"%>
<%@ page import="java.lang.*" %>
<%@ page import="javax.servlet.*" %>
<%@ page import="javax.servlet.jsp.*" %>
<%@ page import="javax.servlet.http.* "%>
<%@ page import="java.io.*" %>
<%@ page import="java.nio.*" %>
<% 
/***********/
/* Author : JarryLi 
/* Blog:http://jiarry.blogchina.com
/***********/
request.setCharacterEncoding("GBK");
response.setCharacterEncoding("GBK");
response.setContentType("text/html; charset=GBK");
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Cache-Control", "must-revalidate");
response.setDateHeader("Expires",0);
%>

<%@ include file="../inc/data.jsp" %>

<%

 String name="",value="",desc=""; 
 if(request.getParameter("name") != null) name = request.getParameter("name").trim();
 if(request.getParameter("value") != null)value = request.getParameter("value").trim();
 if(request.getParameter("desc") != null)desc = request.getParameter("desc").trim();
 
 if(name.equals("") || value.equals("") || desc.equals("")){
   out.print("参数不对:(");
   return;
 }
     
	try{
	//get contents and append write new string;
	
	//得到最新的真实行号(最后一行第一列的数字加１,这样即便删除后还能得到最真实的行号,不过对本例来讲意义不大);
  int lastline = getRowCount;
  if( lastline > 0){
  	//如果至少有一行的话;
	  String[] content_list = new String[]{};
  	content_list = getContents.split("\r\n");
  	String lastLine_1col = content_list[content_list.length-1].split("\t")[0] ;
  	//得到最后一行第一列记录的行号;
    lastline = getRowCount > Integer.parseInt( lastLine_1col ) ?  getRowCount : Integer.parseInt( lastLine_1col );
    
   //比较
 }
  int newline =  lastline + 1;//得到新行号

/*-----------------------------*/	
	//write data in;
/*-----------------------------*/	
	String checkboxlist = "";	

	//checkboxlist = getStrCn(getContents) + newline + "\t" + getStrCn(name) +"\t"+ getStrCn(value) +"\t"+ getStrCn(desc) +  "\r\n" ;	
	checkboxlist = getContents + newline + "\t" + name +"\t"+ value +"\t"+ desc +  "\r\n" ;	//如果采用utf-8编码则不用转换;

  
	String Writestr =  GBKtoUTF(checkboxlist);
	/*out.print("\r\n checkboxlist:" + checkboxlist);
	out.print("\r\n GBKtoUTF(checkboxlist):" + GBKtoUTF(checkboxlist));
	out.print("\r\n decodeUTF(checkboxlist):" + decodeUTF(checkboxlist));
	out.print("\r\n getStrCn(checkboxlist):" + getStrCn(checkboxlist));
	*/
	
	//得到post的值用
	if( writeContent( checkboxlist , filename  ).equals("success") )
	    out.print("\"$appendOK$\"");//output ok status
      //存储数据并且输出ok
    
    }catch(Exception e) {
      out.print(e.getMessage());
    }

%>