最近有这么一个需求，一个主页面从request中拿到请求的参数（中文）,主页面里有两个frame,
每个frame嵌着一个jsp,如何把主页面中得到的中文参数值传入frame里去呢，后来发现应该先把
中文编码成unicode,然后传给frame中的jsp，frame中的jsp再解码，程序清单如下:
index.jsp
====================================================================
<%@ page contenttype="text/html; charset=utf-8" %>
<%@ page import="java.net.urlencoder" %>
<%
string flowname = request.getparameter("flowname");
%>
<html>
<head>
<title>
业务相关资料
</title>
</head>
<frameset rows="70%,*" cols="*" framespacing="1" frameborder="yes" border="0">
<frame src="assetlist.jsp?flowname=<%=flowname%>" name="topframe" frameborder="1" scrolling="auto" noresize>
<frame src="#" name="acceframe" scrolling="auto">
</frameset>
</html>
assetlist.jsp
========================================================
<%@ page contenttype="text/html; charset=utf-8" %>
<%@ taglib uri="/web-inf/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/web-inf/struts-html.tld" prefix="html" %>
<%@ taglib uri="/web-inf/struts-logic.tld" prefix="logic" %>
<%@ page import="com.founder.oa.common.utils" %>
<%@ page import="com.founder.oa.uiframe.complexsearch.*" %>
<%@ page import="gov.police.tech.wcminterface.*" %>
<%@ page import="gov.police.tech.application.dataexchange.*" %>
<%@ page import="com.founder.fdam.oaiinterface.*" %>
<%@ page import="com.founder.oa.daminterfaceadapter.*" %>
<%@ page import="java.util.*" %>
<%@ page import="gov.police.tech.application.appdata.*" %>
<%
string cond ="flowname = '"+ request.getparameter("flowname")+"'";
// out.println(cond);
httpsession sess = request.getsession();
int allpage = 0;//页数
string pageno = request.getparameter("pageno");
//pageno为null,则赋值为1
if(pageno==null){
pageno="1";
sess.setattribute("flowname",cond);
}
else{
cond = (string)sess.getattribute("flowname");
// out.println(cond);
}
int p = integer.parseint(pageno);//当前页
arraylist al = new arraylist();
int size=0;
try{
daminterfaceapp dapp = new daminterfaceapp();
verify ver = new verify(dapp);
ver.login("admin","admin");
queryassetext quext = queryassetext.getinstance(dapp);
string strqueryresult = "";
try
{
strqueryresult = quext.queryallassets(150,cond, "", "", 0);
}
catch(exception qe)
{
system.err.print("错误：调用博思查询接口queryassetext.queryallassets出错，错误信息为："+qe.getmessage());
}
//对得到的查询结果进行解析
//system.out.println("提示：查询结果为： "+strqueryresult);
al = (arraylist)queryassetadapter.getqueryassets(strqueryresult);
allpage = pageutil.getallpage(al);
//out.println(allpage);
al = pageutil.getpageitems(al,p);
size = al.size();
//out.println(size);
}
catch(exception e){
e.printstacktrace();
}
%>
<html>
<head>
<title>
业务相关资料
</title>
<link href="<%=request.getcontextpath()%>/css/csstop.css" rel="stylesheet" type="text/css">
<link href="<%=request.getcontextpath()%>/css/link_sty.css" rel="stylesheet" type="text/css">
<script language="javascript" >
var swd = null;
function selected(t)
{
if(swd!=null)
swd.classname = "";
if(t==swd)
{
swd = null;
return;
}
t.classname = "xz";
swd=t;
submit();
}
function submit()
{
document.frmassets.assetid.value = swd.id;
document.frmassets.submit();
}
</script>
<style>
#table1 tr{ cursor:hand; }
.xz { color: #ffffff; background-color: #66cccc; }
</style>
</head>
<body bgcolor="#ffffff">
<center>业务相关资料
<form action="accessory.jsp" name="frmassets" target="acceframe" method="post">
<table id="table1" width="90%" border="1" align="center" cellpadding="2" cellspacing="3">
<tbody>
<tr class="gray">
<td align="center">标题
</td>
<td align="center">业务名称
</td>
<td align="center">处室
</td>
<td align="center">联系人
</td>
<td align="center">联系电话
</td>
<td align="center">版本
</td>
</tr>
<%
for(int j=0;j<size;j++){
%>
<tr id="<%=(string)((map)al.get(j)).get(new string("id"))%>" onclick="selected(this)">
<td align="center"><%=pageutil.getstr((string)((map)al.get(j)).get("title"))%>
</td>
<td align="center"><%=pageutil.getstr((string)((map)al.get(j)).get("flowname"))%>
</td>
<td align="center"><%=pageutil.getstr((string)((map)al.get(j)).get("unit"))%>
</td>
<td align="center"><%=pageutil.getstr((string)((map)al.get(j)).get("linkman"))%>
</td>
<td align="center"><%=pageutil.getstr((string)((map)al.get(j)).get("linktel"))%>
</td>
<td align="center"><%=pageutil.getstr((string)((map)al.get(j)).get("version"))%>
</td>
</tr>
<%}%>
</tbody>
</table>
<br />
共 <%=allpage%> 页
<a href="assetlist.jsp?pageno=1">首页</a>
<%
int ii = 0;
if(p>1){
ii = p - 1;
}
%>
<a href="assetlist.jsp?pageno=<%=ii%>">上一页</a>
<%
if(p<allpage){
ii = p + 1;
}
else if(p==allpage){
ii = p;
}
%>
<a href="assetlist.jsp?pageno=<%=ii%>">下一页</a>
<a href="assetlist.jsp?pageno=<%=allpage%>">末页</a>
<input type="hidden" name="assetid">
</form>
</center>
</body>
</html>
编码解码的java程序escape.java
===================================================================
package gov.police.tech.application.appdata;
public class escape {
private final static string[] hex = { "00", "01", "02", "03", "04", "05",
"06", "07", "08", "09", "0a", "0b", "0c", "0d", "0e", "0f", "10",
"11", "12", "13", "14", "15", "16", "17", "18", "19", "1a", "1b",
"1c", "1d", "1e", "1f", "20", "21", "22", "23", "24", "25", "26",
"27", "28", "29", "2a", "2b", "2c", "2d", "2e", "2f", "30", "31",
"32", "33", "34", "35", "36", "37", "38", "39", "3a", "3b", "3c",
"3d", "3e", "3f", "40", "41", "42", "43", "44", "45", "46", "47",
"48", "49", "4a", "4b", "4c", "4d", "4e", "4f", "50", "51", "52",
"53", "54", "55", "56", "57", "58", "59", "5a", "5b", "5c", "5d",
"5e", "5f", "60", "61", "62", "63", "64", "65", "66", "67", "68",
"69", "6a", "6b", "6c", "6d", "6e", "6f", "70", "71", "72", "73",
"74", "75", "76", "77", "78", "79", "7a", "7b", "7c", "7d", "7e",
"7f", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89",
"8a", "8b", "8c", "8d", "8e", "8f", "90", "91", "92", "93", "94",
"95", "96", "97", "98", "99", "9a", "9b", "9c", "9d", "9e", "9f",
"a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "aa",
"ab", "ac", "ad", "ae", "af", "b0", "b1", "b2", "b3", "b4", "b5",
"b6", "b7", "b8", "b9", "ba", "bb", "bc", "bd", "be", "bf", "c0",
"c1", "c2", "c3", "c4", "c5", "c6", "c7", "c8", "c9", "ca", "cb",
"cc", "cd", "ce", "cf", "d0", "d1", "d2", "d3", "d4", "d5", "d6",
"d7", "d8", "d9", "da", "db", "dc", "dd", "de", "df", "e0", "e1",
"e2", "e3", "e4", "e5", "e6", "e7", "e8", "e9", "ea", "eb", "ec",
"ed", "ee", "ef", "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
"f8", "f9", "fa", "fb", "fc", "fd", "fe", "ff" };
private final static byte[] val = { 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x01,
0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f };
/**
* 编码
*
* @param s
* @return
*/
public static string escape(string s) {
stringbuffer sbuf = new stringbuffer();
int len = s.length();
for (int i = 0; i < len; i++) {
int ch = s.charat(i);
if ('a' <= ch && ch <= 'z') { // 'a'..'z' : as it was
sbuf.append((char) ch);
} else if ('a' <= ch && ch <= 'z') { // 'a'..'z' : as it was
sbuf.append((char) ch);
} else if ('0' <= ch && ch <= '9') { // '0'..'9' : as it was
sbuf.append((char) ch);
} else if (ch == '-' || ch == '_' // unreserved : as it was
|| ch == '.' || ch == '!' || ch == '~' || ch == '*'
|| ch == '/'' || ch == '(' || ch == ')') {
sbuf.append((char) ch);
} else if (ch <= 0x007f) { // other ascii : map to %xx
sbuf.append('%');
sbuf.append(hex[ch]);
} else { // unicode : map to %uxxxx
sbuf.append('%');
sbuf.append('u');
sbuf.append(hex[(ch >>> 8)]);
sbuf.append(hex[(0x00ff & ch)]);
}
}
return sbuf.tostring();
}
/**
* 解码 说明：本方法保证 不论参数s是否经过escape()编码，均能得到正确的“解码”结果
*
* @param s
* @return
*/
public static string unescape(string s) {
stringbuffer sbuf = new stringbuffer();
int i = 0;
int len = s.length();
while (i < len) {
int ch = s.charat(i);
if ('a' <= ch && ch <= 'z') { // 'a'..'z' : as it was
sbuf.append((char) ch);
} else if ('a' <= ch && ch <= 'z') { // 'a'..'z' : as it was
sbuf.append((char) ch);
} else if ('0' <= ch && ch <= '9') { // '0'..'9' : as it was
sbuf.append((char) ch);
} else if (ch == '-' || ch == '_' // unreserved : as it was
|| ch == '.' || ch == '!' || ch == '~' || ch == '*'
|| ch == '/'' || ch == '(' || ch == ')') {
sbuf.append((char) ch);
} else if (ch == '%') {
int cint = 0;
if ('u' != s.charat(i + 1)) { // %xx : map to ascii(xx)
cint = (cint << 4) | val[s.charat(i + 1)];
cint = (cint << 4) | val[s.charat(i + 2)];
i += 2;
} else { // %uxxxx : map to unicode(xxxx)
cint = (cint << 4) | val[s.charat(i + 2)];
cint = (cint << 4) | val[s.charat(i + 3)];
cint = (cint << 4) | val[s.charat(i + 4)];
cint = (cint << 4) | val[s.charat(i + 5)];
i += 5;
}
sbuf.append((char) cint);
} else { // 对应的字符未经过编码
sbuf.append((char) ch);
}
i++;
}
return sbuf.tostring();
}
public static void main(string[] args) {
string stest = "中文1234 abcd[]()<+>,.~//";
system.out.println(stest);
system.out.println(escape(stest));
system.out.println(unescape(escape(stest)));
}
}
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