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分享求助中文乱码问题
我的代码如下
public class ZhanghaoLuru extends HttpServlet{
public void doGet(HttpServletRequest req ,HttpServletResponse resp)
throws ServletException,IOException{
resp.setCharacterEncoding("gb2312");
resp.setContentType("text/html;charset=utf-8");
String username=req.getParameter("username");
String password=req.getParameter("password");
String str = new String(username.getBytes("ISO-8859-1"),"UTF-8");
String information=str+","+password;
if(str!=null && password!=null){
resp.sendRedirect("success.html");
}
File javaFile = new File( "E:\\java\\shijiong.txt ");
try{
if(javaFile.isFile()){
System.out.println( "文件已存在！ ");
}
else{
javaFile.createNewFile();
System.out.println( "文件创建成功！ ");
}
String fileName = "E:\\java\\shijiong.txt";
appendMethodB(fileName, information);
}
catch (IOException e1) {
e1.printStackTrace();
}
}
public static void appendMethodB(String fileName, String content) throws IOException{
try {
FileWriter writer = new FileWriter(fileName, true);
writer.write(content);
writer.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
public void doPost(HttpServletRequest req ,HttpServletResponse resp)
throws ServletException,IOException{
resp.setContentType("text/html;charset=gbk");
doGet(req,resp);
}
}
在页面输入英文没问题但是中文后在返回的TXT文档里出现的就是几个问号，不出汉字，是怎么回事，求大神帮忙解决一下，。
public class ZhanghaoLuru extends HttpServlet{
public void doGet(HttpServletRequest req ,HttpServletResponse resp)
throws ServletException,IOException{
resp.setCharacterEncoding("gb2312");
resp.setContentType("text/html;charset=utf-8");
String username=req.getParameter("username");
String password=req.getParameter("password");
String str = new String(username.getBytes("ISO-8859-1"),"UTF-8");
String information=str+","+password;
if(str!=null && password!=null){
resp.sendRedirect("success.html");
}
File javaFile = new File( "E:\\java\\shijiong.txt ");
try{
if(javaFile.isFile()){
System.out.println( "文件已存在！ ");
}
else{
javaFile.createNewFile();
System.out.println( "文件创建成功！ ");
}
String fileName = "E:\\java\\shijiong.txt";
appendMethodB(fileName, information);
}
catch (IOException e1) {
e1.printStackTrace();
}
}
public static void appendMethodB(String fileName, String content) throws IOException{
try {
FileWriter writer = new FileWriter(fileName, true);
writer.write(content);
writer.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
public void doPost(HttpServletRequest req ,HttpServletResponse resp)
throws ServletException,IOException{
resp.setContentType("text/html;charset=gbk");
doGet(req,resp);
}
}
在页面输入英文没问题但是中文后在返回的TXT文档里出现的就是几个问号，不出汉字，是怎么回事，求大神帮忙解决一下，。
...全文
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李博666 2012-11-08
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你按照我的改就行了，我给你写了一份贴上去了，自己看吧
<!DOCTYPE html>
<html>
<head>
<title>MyHtml.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
</head>
<body>
<form action="Login" method="post">
<table>
<tr>
<td>请输入用户名：</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>请输入密码：</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td><input type="reset" value="重填"></td>
<td><input type="submit" value="确认"></td>
</tr>
</table>
</form>
</body>
</html>
public class Login extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
resp.setContentType("text/html");
resp.setCharacterEncoding("utf-8");
String username = new String(req.getParameter("username").getBytes("ISO-8859-1"),"UTF-8");
//String username = req.getParameter("username");
String password = req.getParameter("password");
/*
* String str = new String(username.getBytes("ISO-8859-1"),"UTF-8");
*/
String information=username+","+password;
if (username != null && password != null) {
resp.sendRedirect("success.html");
}
File javaFile = new File("E:\\java\\shijiong.txt ");
try {
if (javaFile.isFile()) {
System.out.println("文件已存在！ ");
} else {
javaFile.createNewFile();
System.out.println("文件创建成功！ ");
}
String fileName = "E:\\java\\shijiong.txt";
appendMethodB(fileName, information);
} catch (IOException e1) {
e1.printStackTrace();
}
}
public static void appendMethodB(String fileName, String content)
throws IOException {
try {
FileWriter writer = new FileWriter(fileName, true);
writer.write(content);
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Tony-Lu 2012-11-07
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同意楼上说的，要统一啊~
zxhcloth 2012-11-07
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resp.setCharacterEncoding("gb2312");
resp.setContentType("text/html;charset=utf-8");
你这两种不同的编码什么意思？
最美的词 2012-11-07
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编码统一，顶楼上
Sarah_Neil 2012-11-07
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注意编码的统一性、以及你开发工具的编码要一致
shijiong1989 2012-11-07
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我把两个都改成一致了并且前台也用的是post但还是乱码，解决不了啊
<body>
<form action="login" method="post">
<table>
<tr>
<td>请输入用户名：</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>请输入密码：</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td><input type="reset" value="重填"></td>
<td><input type="submit" value="确认"></td>
</tr>
</table>
</form>
</body>
hay_lee 2012-11-07
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编码必须统一！
李博666 2012-11-07
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resp.setCharacterEncoding("gb2312");
resp.setContentType("text/html;charset=utf-8");
上面这两个都要用"utf-8"
而且使用resp.setCharacterEncoding("gb2312");设置编码，前台<form method="post">这样才可以，记得也要使用dopost方法
人生若只如初见 2012-11-07
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尽量保证都统一...
aa8771206 2012-11-07
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resp.setCharacterEncoding("gb2312");
resp.setContentType("text/html;charset=utf-8");
String username=req.getParameter("username");
String password=req.getParameter("password");
String str = new String(username.getBytes("ISO-8859-1"),"UTF-8");
跟他们说的差不多，统一，不同类型肯定会出乱码。
还要检查你页面传过来的值的类型
fccfcc1234 2012-11-07
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JSP开头加上下面的这句话。
<%@ page contentType="text/html; charset=gb2312" %>
shijiong1989 2012-11-07
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我把他们都改成了“gb2312"可是输出的还是几个问号，不输出汉字，求指导啊
