为什么我直接在servlet里面直接输出message不乱码，而跳转到web页面就出现乱码，而且存到数据库的也是乱码，我尝试了网上的各种方法，还是不成功。。
为什么我直接在servlet里面直接输出message不乱码，而跳转到web页面就出现乱码，而且存到数据库的也是乱码，我尝试了网上的各种方法，还是不成功。。
public class HandleRegister extends HttpServlet
{ public void init(ServletConfig config) throws ServletException
{ super.init(config);
try { Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
}
catch(Exception e){}
}
public String handleString(String s)
{ try{ byte bb[]=s.getBytes("iso-8859-1");
s=new String(bb);
}
catch(Exception ee){}
return s;
}
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{
response.setHeader("content-type","text/html;charset=UTF-8");
PrintWriter out=response.getWriter();
Connection con;
PreparedStatement sql;
Register reg=new Register();
request.setAttribute("register",reg);
String logname=request.getParameter("logname").trim(),
password=request.getParameter("password").trim(),
sex=request.getParameter("sex").trim(),
email=request.getParameter("email").trim(),
phone=request.getParameter("phone").trim(),
message=request.getParameter("message");
message= new String( message.getBytes("ISO-8859-1"),"gb2312");
out.println(message);
sex= new String( sex.getBytes("ISO-8859-1"),"gb2312");
out.println(sex);
int age=Integer.parseInt(request.getParameter("age").trim());
String uri="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=Student";
if(logname==null)
logname="";
if(password==null)
password="";
boolean isLD=true;
for(int i=0;i<logname.length();i++)
{ char c=logname.charAt(i);
if(!((c<='z'&&c>='a')||(c<='Z'&&c>='A')||(c<='9'&&c>='0')))
isLD=false;
}
boolean boo=logname.length()>0&&password.length()>0&&isLD;
String backNews="";
try{ con=DriverManager.getConnection(uri,"sa","sa");
String insertCondition="INSERT INTO member VALUES (?,?,?,?,?,?,?,?)";
sql=con.prepareStatement(insertCondition);
if(boo)
{ sql.setString(1,handleString(logname));
sql.setString(2,handleString(password));
sql.setString(3,handleString(sex));
sql.setInt(4,age);
sql.setString(5,phone);
sql.setString(6,email);
sql.setString(7,handleString(message));
sql.setString(8,"public.jpg");
int m=sql.executeUpdate();
if(m!=0)
{ backNews="注册成功";
reg.setBackNews(backNews);
reg.setLogname(logname);
reg.setPassword(handleString(password));
reg.setAge(age);
reg.setSex(handleString(sex));
reg.setEmail(handleString(email));
reg.setPhone(phone);
reg.setMessage(handleString(message));
}
}
else
{ backNews="信息填写不完整或名字中有非法字符";
reg.setBackNews(backNews);
}
con.close();
}
catch(SQLException exp)
{ backNews="该会员名已被使用，请您更换名字"+exp;
reg.setBackNews(backNews);
}
RequestDispatcher dispatcher= request.getRequestDispatcher("/ptext/User/showRegisterMess.jsp");
dispatcher.forward(request, response);
}
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException
{ doPost(request,response);
}
}
jsp页面：
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<%request.setCharacterEncoding("gb2312");%>
</head>
<BODY><Font size=2>
<CENTER>
<FORM action="helpRegister" name=form method="post">
<BR>输入您的信息，会员名字必须由字母和数字组成，带*号项必须填写。
<table>
<tr><td>会员名称:</td> <td><Input type=text name="logname" >*</td></tr>
<tr><td>设置密码:</td><td><Input type=password name="password">*</td></tr>
<tr><td>性别:</td>
<td><Input type=radio name="sex" checked="o" value="男">男
<Input type=radio name="sex" value="女">女
</td>
</tr>
<tr><td>会员年龄:</td><td><Input type=text name="age" value="0"></td></tr>
<tr><td>电子邮件:</td><td><Input type=text name="email"></td></tr>
<tr><td>联系电话:</td><td><Input type=text name="phone"></td></tr>
</table>
<table>
<tr><td>输入您的个人简介：</td></tr>
<tr>
<td><TextArea name="message" Rows="6" Cols="30"></TextArea></td>
</tr>
<tr><td><Input type=submit name="g" value="提交"></td> </tr>
</table>
</Form></CENTER>
</BODY>
</html>
显示页面：
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<%@ page import="mybean.data.Register"%>
<jsp:useBean id="register" type="mybean.data.Register" scope="request" />
</head>
<BODY bgcolor=cyan><Font size=2>
<CENTER><Font size=4 color=blue >
<jsp:getProperty name="register" property="backNews" />
</Font>
<Font size=2>
<table>
<tr><td>注册的会员名称:</td><td><jsp:getProperty name="register" property="logname" /></td></tr>
<tr><td>注册的性别:</td> <td><jsp:getProperty name="register" property="sex" /></td></tr>
<tr><td>注册的会员年龄:</td><td><jsp:getProperty name="register" property="age" /></td></tr>
<tr><td>注册的电子邮件:</td><td><jsp:getProperty name="register" property="email" /></td></tr>
<tr><td>注册的联系电话:</td><td><jsp:getProperty name="register" property="phone" /></td></tr>
</table>
<table><tr><td>您输入的个人简介：</td></tr>
<tr><td><TextArea name="message" Rows="6" Cols="30">
<jsp:getProperty name="register" property="message" />
</TextArea></td>
</tr>
</table>
</FONT></CENTER>
</BODY>
</html>
