常見JSP中文亂碼例子及其解決方法
JSP開發(fā)應(yīng)用是,中文亂碼是個比較常見的問題,其根源是:Web容器默認(rèn)的字符處理編碼是ISO-8859-1。
實(shí)例一、JSP頁面顯示時
- <html>
 - <head>
 - <title>中文亂碼——JSP頁面顯示時</title>
 - </head>
 - <body>
 - <center>
 - <br/>
 - <h1>木蘭辭擬古決絕詞柬友</h1>
 - <p>人生若只如初見,何事秋風(fēng)悲畫扇。</p>
 - <p>等閑變卻故人心,卻道故人心易變。</p>
 - <p>驪山語罷清宵半,淚雨霖鈴終不怨。</p>
 - <p>何如薄幸錦衣郎,比翼連枝當(dāng)日愿。</p>
 - </center>
 - </body>
 - </html>
 
運(yùn)行結(jié)果:
解決方法:為其指定中文字符集,<html>前加入
- <%@ page contentType="text/html;charset=gb2312" %>
 
實(shí)例二、JSP頁面?zhèn)鬟f中文參數(shù)時
注冊頁面:
- <%@ page contentType="text/html;charset=gb2312" %>
 - <html>
 - <head>
 - <title>中文亂碼——JSP頁面?zhèn)鬟f中文參數(shù)時</title>
 - </head>
 - <body>
 - <h2>申請賬號:</h2>
 - <form action="userMsg.jsp" method="POST">
 - <p>郵箱: <input type="text"name="email" id="email"/><p/>
 - <p>昵稱: <input type="text"name="nickname" id="nickname"/><p/>
 - <p>密碼: <input type="password"name="password" id="password"/><p/>
 - <p>性別: <input type="radio"name="sex" id="sex"value="男" /> 男
 - <input type="radio" name="sex"id="sex" value="女" /> 女<p/>
 - <textarea name="introduction"id="introduction" rows="5" cols="27">一句話介紹自己...</textarea>
 - <p><input type="submit"value="提交申請"></p>
 - </form>
 - </body>
 - </html>
 
個人信息頁面:
- <%@ page contentType="text/html;charset=gb2312" %>
 - <html>
 - <head>
 - <title>中文亂碼——JSP頁面?zhèn)鬟f中文參數(shù)時 </title>
 - </head>
 - <body>
 - <center>
 - <h2>用戶信息:</h2>
 - <% String email = request.getParameter("email"); %>
 - <% String nickname = request.getParameter("nickname"); %>
 - <% String password = request.getParameter("password"); %>
 - <% String sex = request.getParameter("sex"); %>
 - <% String introduction = request.getParameter("introduction");%>
 - <p>郵箱: <% out.print(email); %><p/>
 - <p>昵稱: <% out.print(nickname); %><p/>
 - <p>密碼: <% out.print(password); %><p/>
 - <p>性別: <% out.print(sex); %><p/>
 - <p>個人介紹:<%out.print(introduction); %></p>
 - </center>
 - </body>
 - </html>
 
運(yùn)行結(jié)果:
解決方法:修改個人信息頁面如下
- <%@ page contentType="text/html;charset=gb2312" %>
 - <html>
 - <head>
 - <title>中文亂碼——JSP頁面?zhèn)鬟f中文參數(shù)時 </title>
 - </head>
 - <body>
 - <h2>用戶信息:</h2>
 - <% String email = newString(request.getParameter("email").getBytes("ISO-8859-1"), "gb2312");%>
 - <% String nickname = newString(request.getParameter("nickname").getBytes("ISO-8859-1"), "gb2312");%>
 - <% String password = newString(request.getParameter("password").getBytes("ISO-8859-1"), "gb2312");%>
 - <% String sex = newString(request.getParameter("sex").getBytes("ISO-8859-1"), "gb2312");;%>
 - <% String introduction = newString(request.getParameter("introduction").getBytes("ISO-8859-1"), "gb2312");;%>
 - <p>郵箱: <% out.print(email); %><p/>
 - <p>昵稱: <% out.print(nickname); %><p/>
 - <p>密碼: <% out.print(password); %><p/>
 - <p>性別: <% out.print(sex); %><p/>
 - <p>個人介紹:<%out.print(introduction); %></p>
 - </body>
 - </html>
 
實(shí)例三、Servlet處理中文參數(shù)時
注冊頁面:
- <%@ page contentType="text/html;charset=gb2312" %>
 - <%@ page import="test.UserMsg"%>
 - <html>
 - <head>
 - <title>中文亂碼——JSP頁面?zhèn)鬟f中文參數(shù)時</title>
 - </head>
 - <body>
 - <h2>申請賬號:</h2>
 - <form action="./UserMsg" method="POST">
 - <p>郵箱: <input type="text"name="email" id="email"/><p/>
 - <p>昵稱: <input type="text"name="nickname" id="nickname"/><p/>
 - <p>密碼: <input type="password"name="password" id="password"/><p/>
 - <p>性別: <input type="radio"name="sex" id="sex"value="男" /> 男
 - <input type="radio" name="sex"id="sex" value="女" /> 女<p/>
 - <textarea name="introduction"id="introduction" rows="5" cols="27">一句話介紹自己...</textarea>
 - <p><input type="submit"value="提交申請"></p>
 - </form>
 - </body>
 - </html>
 
UserMsg.java(Servlet)
- package test;
 - importjava.io.IOException;
 - importjava.io.PrintWriter;
 - importjava.io.UnsupportedEncodingException;
 - importjavax.servlet.http.HttpServlet;
 - importjavax.servlet.http.HttpServletRequest;
 - importjavax.servlet.http.HttpServletResponse;
 - public classUserMsg extends HttpServlet{
 - public void doGet(HttpServletRequestrequest,
 - HttpServletResponse response){
 - doPost(request, response);
 - }
 - public void doPost(HttpServletRequestrequest,
 - HttpServletResponse response){
 - try {
 - request.setCharacterEncoding("gb2312");
 - } catch (UnsupportedEncodingExceptione) {
 - e.printStackTrace();
 - }
 - PrintWriter out = null;
 - try {
 - out = response.getWriter();
 - } catch (IOException e1) {
 - e1.printStackTrace();
 - }
 - out.print("<html>");
 - out.print("<body>");
 - out.print("<h2>" +"用戶信息:"+ "</h2>");
 - out.print("<p>"+"郵箱:"+request.getParameter("email")+"<p/>");
 - out.print("<p>"+"昵稱:"+request.getParameter("nickname")+"<p/>");
 - out.print("<p>"+"密碼:"+request.getParameter("password")+"<p/>");
 - out.print("<p>"+"性別:"+request.getParameter("sex")+"<p/>");
 - out.print("<p>"+"個人介紹:"+request.getParameter("introduction")+"<p/>");
 - out.print("</html>");
 - out.print("</body>");
 - }
 - }
 
運(yùn)行結(jié)果:
解決方法:在doPost中加入:
- response.setContentType("text/html; charset=gb2312");
 
原文鏈接:http://blog.csdn.net/cannel_2020/article/details/7375768
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