jsp中架構頁面請求中的中文編碼問題

最後更新：2018-12-04 來源：互聯網

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最近有這麼一個需求，一個首頁面從request中拿到請求的參數（中文）,首頁面裡有兩個Frame,

每個Frame嵌著一個jsp,如何把首頁面中得到的中文參數值傳入Frame裡去呢，後來發現應該先把

中文編碼成unicode,然後傳給frame中的jsp，frame中的jsp再解碼，程式清單如下:

index.jsp

====================================================================

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ page import="java.net.URLEncoder" %>
<%
String flowname = request.getParameter("flowname");
%>
<html>
<head>
<title>
業務相關資料
</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;//頁數
String pageNo = request.getParameter("pageNo");
//pageNo為null,則賦值為1
if(pageNo==null){
  pageNo="1";
        sess.setAttribute("flowname",cond);
}
        else{
          cond = (String)sess.getAttribute("flowname");
         // out.println(cond);
        }
        int p = Integer.parseInt(pageNo);//當前頁

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("錯誤：調用博思查詢介面QueryAssetExt.queryAllAssets出錯，錯誤資訊為："+qe.getMessage());
      }
      //對得到的查詢結果進行解析

      //System.out.println("提示：查詢結果為： "+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>
業務相關資料
</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>業務相關資料

   </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%> 頁
   <a href="assetlist.jsp?pageNo=1">首頁</a>
   <%
   int ii = 0;
   if(p>1){
             ii = p - 1;
   }

%>
<a href="assetlist.jsp?pageNo=<%=ii%>">上一頁</a>

   <%
   if(p<allpage){
             ii = p + 1;
   }
        else if(p==allpage){
          ii = p;
        }

%>
<a href="assetlist.jsp?pageNo=<%=ii%>">下一頁</a>

編碼解碼的java程式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 };

/**
* 編碼
*
* @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();
}

/**
* 解碼說明：本方法保證不論參數s是否經過escape()編碼，均能得到正確的“解碼”結果
*
* @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 { // 對應的字元未經過編碼
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)));
}

}

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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