救急！又遇中文输入问题！

代码转换方法
  //中文编码的转换
   public String toGb(String uniStr){
    String gbStr = "";
    if(uniStr == null){
      uniStr = "";
    }
    try{
     byte[] tempByte = uniStr.getBytes("ISO8859_1");
     gbStr = new String(tempByte,"GB2312");
    }catch(UnsupportedEncodingException uef){
   }
    return gbStr;
  }
  public String toUni(String gbStr){
    String uniStr = "";
    if(gbStr == null){
      gbStr = "";
    }
    try{
     byte[] tempByte = gbStr.getBytes("GB2312");
     uniStr = new String(tempByte,"ISO8859_1");
    }catch(UnsupportedEncodingException uef){
   }
    return uniStr;
  }

在request.getParameter()之后，进行toGb编码转化再存入数据库就可以了

String name=request.getParameter("name");
name = new String(name.getBytes("8859_1"),"gb2312");
    // byte[]  tmpbyte=name.getBytes("ISO8859_1");
    // name=new String(tmpbyte);
String title=request.getParameter("title");
title = new String(title.getBytes("8859_1"),"gb2312");
     //   tmpbyte=title.getBytes("ISO8859_1");
     //   title=new String(tmpbyte);
String content=request.getParameter("content");
content = new String(content.getBytes("8859_1"),"gb2312");
      //  tmpbyte=content.getBytes("ISO8859_1");
      //  content=new String(tmpbyte);

可是当我把add_message.jsp改为：

<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<%@ page contentType="text/html;charset=gb2312"%>
<link href="web/css/style1.css" rel="stylesheet" type="text/css">
<HTML>
<HEAD>
<TITLE>提交留言 </TITLE>
</HEAD>
<body background=images/back.jpg bgcolor="#FFFFFF">
<%
        String name=request.getParameter("name");
        name = new String(name.getBytes("8859_1"),"gb2312");
String mail=request.getParameter("mail");
String title=request.getParameter("title");
        title= new String(title.getBytes("8859_1"),"gb2312");
String content=request.getParameter("content");
       content= new String(content.getBytes("8859_1"),"gb2312");
if(name==null)
name="";
if(title==null)
title="";
if(content==null)
content="";
if(mail==null)
mail="";
if(name.length()==0)
out.println("留言人姓名不能为空！");
else if(title.length()==0)
out.println("留言主题不能为空！");
else if(content.length()==0)
out.println("留言内容不能为空！");
else
{
java.util.Date date=new java.util.Date();
String datetime=new Timestamp(date.getTime()).toString(); try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url="jdbc:odbc:bookshop";
Connection con=DriverManager.getConnection(url,"simba","12345");
PreparedStatement stm=con.prepareStatement("insert into message values(?,?,?,?,?)");
stm.setString(1,title);
stm.setString(2,name);
if(mail.length()==0)
stm.setString(3,null);
else stm.setString(3,mail);
stm.setString(4,datetime);
stm.setString(5,content);
try
{
stm.executeQuery();
} catch(Exception e)
{}
con.close();
}
catch (Exception e)
{}
%>
<jsp:forward page="view_message.jsp" />
<%
}
%>
</body>
</html>
还是一堆问号等着我

String name=request.getParameter("name");
out.print("name=="+name) ;
        name = new String(name.getBytes("8859_1"),"gb2312");
out.print("转换后name=="+name) ;
String mail=request.getParameter("mail");
String title=request.getParameter("title");
out.print("title=="+title) ;
        title= new String(title.getBytes("8859_1"),"gb2312");
out.print("转换后title=="+title) ;
String content=request.getParameter("content");
out.print("content=="+content) ;
       content= new String(content.getBytes("8859_1"),"gb2312");
   out.print("转换后content=="+content) ;查查看有没有转换？
如果转换了，则不这里的问题。

index.html:

<%@ page contentType="text/html;charset=gb2312"%>
<link href="web/css/style1.css" rel="stylesheet" type="text/css">
<HTML>
<HEAD>
<TITLE> 留言板 </TITLE>
</HEAD>
<body background=images/back.jpg bgcolor="#FFFFFF">
<TABLE  width="90%" align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">
<TR>
<TD align="center" bgcolor="#88a6dd">访客留言板</TD>
</TR>
<TR>
<TD><TABLE  align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">
<FORM ACTION="add_message.jsp">
<TR>
<TD>姓名：</TD>
<TD bgcolor="#88a6dd"><input type="text" name="name" size=25></TD>
</TR>
<TR>
<TD bgcolor="#88a6dd">E-mail：</TD>
<TD bgcolor="#88a6dd"><input type="text" name="mail" size=25></TD>
</TR>
<TR>
<TD>主题：</TD>
<TD bgcolor="#88a6dd"><input type="text" name="title" size=25></TD>
</TR>
<TR>
<TD valign="top" bgcolor="#88a6dd">留言：</TD>
<TD><textarea name="content" rows=7 cols=25></textarea></TD>
</TR>
<TR>
<TD colspan=3><TABLE align="center" width="100%" cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">
<TR>
<TD align="center" bgcolor="#88a6dd"><input type="submit" value="提交留言"></TD>
<TD align="center"><a href="view_message.jsp"><font size=2>查看留言</font></a></TD>
<TD align="center" bgcolor="#88a6dd"><input type="reset" value="重新填写"></TD>
</TR>
</TABLE></TD>
</TR>
</FORM>
</TABLE></TD>
</TR>
</TABLE>
</BODY>
</HTML>
add_message.jsp:

<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<%@ page contentType="text/html;charset=gb2312"%>
<link href="web/css/style1.css" rel="stylesheet" type="text/css">
<HTML>
<HEAD>
<TITLE>提交留言 </TITLE>
</HEAD>
<body background=images/back.jpg bgcolor="#FFFFFF">
<%
       String name=request.getParameter("name");
out.print("name=="+name) ;
        name = new String(name.getBytes("8859_1"),"gb2312");
out.print("转换后name=="+name) ;
String mail=request.getParameter("mail");
String title=request.getParameter("title");
out.print("title=="+title) ;
        title= new String(title.getBytes("8859_1"),"gb2312");
out.print("转换后title=="+title) ;
String content=request.getParameter("content");
out.print("content=="+content) ;
       content= new String(content.getBytes("8859_1"),"gb2312");
   out.print("转换后content=="+content) ;

if(name==null)
name="";
if(title==null)
title="";
if(content==null)
content="";
if(mail==null)
mail="";
if(name.length()==0)
out.println("留言人姓名不能为空！");
else if(title.length()==0)
out.println("留言主题不能为空！");
else if(content.length()==0)
out.println("留言内容不能为空！");
else
{
java.util.Date date=new java.util.Date();
String datetime=new Timestamp(date.getTime()).toString(); try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url="jdbc:odbc:bookshop";
Connection con=DriverManager.getConnection(url,"simba","12345");
PreparedStatement stm=con.prepareStatement("insert into message values(?,?,?,?,?)");
stm.setString(1,title);
stm.setString(2,name);
if(mail.length()==0)
stm.setString(3,null);
else stm.setString(3,mail);
stm.setString(4,datetime);
stm.setString(5,content);
try
{
stm.executeQuery();
} catch(Exception e)
{}
con.close();
}
catch (Exception e)
{}
%>
<jsp:forward page="view_message.jsp" />
<%
}
%>
</body>
</html>
view_message.jsp:

<%@ page contentType="text/html;charset=gb2312"%>
<link href="web/css/style1.css" rel="stylesheet" type="text/css">
<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<HTML>
<HEAD>
<TITLE> 查看留言 </TITLE>
</HEAD>
<body background=images/back.jpg bgcolor="#FFFFFF">
<p align="center">所有访客留言</p>
<hr>
<%
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url="jdbc:odbc:bookshop";
Connection con=DriverManager.getConnection(url,"simba","12345");
Statement stm=con.createStatement();
ResultSet result=stm.executeQuery("select count(*) from message");
int message_count=0;
if(result.next())
{
message_count=result.getInt(1);
result.close();
}
if(message_count>0)
{
result=stm.executeQuery("select * from message order by time desc");
while(result.next())
{
   String title=result.getString("title");
   String name=result.getString("name");
   String mail=result.getString("mail");
   Timestamp time=result.getTimestamp("time");
   Date date_time=new Date(time.getTime());
   Time time_time=new Time(time.getTime());
                           String content=result.getString("content");
        %>
         <TABLE  width="100%" align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#000000" bordercolorlight="#88a6dd">
<tr><td bgcolor="#88a6dd"><div align="center"><font size=2>主题：</font></div></td><td colspan=3><%=title%></td></tr>
<tr><td bgcolor="#88a6dd"><div align="center"><font size=2>留言人：</font></div></td>
<td colspan=3><%=name%>
                                </td>
                                <td bgcolor="#88a6dd"><div align="center"><font size=2>E-mail：</font></div></td>
<td>
       <%
out.println(""+mail+"");
%>
</td></tr>
<tr><td bgcolor="#88a6dd"><div align="center"><font size=2>留言时间：</font></div></td><td colspan=3>
<%
out.println("<font size=2>"+date_time+" "+time_time+"</font>");

%>
</td></tr>
<tr><td align="center">
<%
out.println("("+message_count+")");
%>
</td>
<td colspan=3><%=content%></td></tr>
</table>
<%
out.println("<hr>");
message_count--;
}
result.close();
con.close();
}
else
{
out.println("目前还没有任何留言！");
con.close();
}
} catch(Exception e)
{out.println(e);}
%>
<p align="center"><a href="index.html">我要留言</a></p>
</body>
</html>

调试易

救急！又遇中文输入问题！

解决方案 »