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分享请教:怎样将big5-->gb2312，高手帮忙
下面是big5.jsp:
<%@ page contentType="text/html; charset=big5" language="java" import="java.sql.*" errorPage="" %>
<html>
<head>
<title>givenumber</title>
</head>
<body bgcolor="#8B42D5">
<font size="+2"></font>
<p>test</p>
<form action="examples/servlet/fengren.test" method="get">
<input type="text" name="number">
<input type="submit" value="Ìá½»"
</form>
</body>
</html>
下面是servlet:
package fengren;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class test extends HttpServlet{
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,IOException{
response.setContentType("text/html;charset=gb2312");
String str1=request.getParameter("number");
PrintWriter out=response.getWriter();
out.println(str1);//我在这里检验一下，在big5.jsp
//中textfield中输入的big5字符（这个是肯定正确的）,可是在servlet中得到
//却是gb2312字符，这是为什么？
String str=new String();
try{
str=new String(str1.getBytes("big5"),"gb2312");//这段
//代码是我写的big5->gb2312，是否正确？
}
catch(Exception e)
{str=str1;}
out.println(str);
out.println("你好");//为什么不能正确显示，只是“？？？”
}
}
到底应该怎样将big5字符转换为gb2312字符，最好能给出一段代码示范
谢谢！！
<%@ page contentType="text/html; charset=big5" language="java" import="java.sql.*" errorPage="" %>
<html>
<head>
<title>givenumber</title>
</head>
<body bgcolor="#8B42D5">
<font size="+2"></font>
<p>test</p>
<form action="examples/servlet/fengren.test" method="get">
<input type="text" name="number">
<input type="submit" value="Ìá½»"
</form>
</body>
</html>
下面是servlet:
package fengren;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class test extends HttpServlet{
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,IOException{
response.setContentType("text/html;charset=gb2312");
String str1=request.getParameter("number");
PrintWriter out=response.getWriter();
out.println(str1);//我在这里检验一下，在big5.jsp
//中textfield中输入的big5字符（这个是肯定正确的）,可是在servlet中得到
//却是gb2312字符，这是为什么？
String str=new String();
try{
str=new String(str1.getBytes("big5"),"gb2312");//这段
//代码是我写的big5->gb2312，是否正确？
}
catch(Exception e)
{str=str1;}
out.println(str);
out.println("你好");//为什么不能正确显示，只是“？？？”
}
}
到底应该怎样将big5字符转换为gb2312字符，最好能给出一段代码示范
谢谢！！
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littlecpu 2003-08-30
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GB2312和BIG5码不是所有都能转，如GB中有的字在Big5中没有对应的码，就会变成?，约80%的字能互转
qiuzhongshu 2003-08-30
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下面的代码将 GB2312 文件转换成 Big5 文件,希望对你有用
?
import java.io.*;
import java.util.*;
?
public class gb2big5 {
?
static int iCharNum=0;
?
public static void main(String[] args) {
System.out.println("Input GB2312 file, output Big5 file.");
if (args.length!=2) {
System.err.println("Usage: jview gb2big5 gbfile big5file");
System.exit(1);
String inputString = readInput(args[0]);
writeOutput(inputString,args[1]);
System.out.println("Number of Characters in file: "+iCharNum+".");
}
?
static void writeOutput(String str, String strOutFile) {
try {
FileOutputStream fos = new FileOutputStream(strOutFile);
Writer out = new OutputStreamWriter(fos, "Big5");
out.write(str);
out.close();
}
catch (IOException e) {
e.printStackTrace();
e.printStackTrace();
}
}
?
static String readInput(String strInFile) {
StringBuffer buffer = new StringBuffer();
try {
FileInputStream fis = new FileInputStream(strInFile);
InputStreamReader isr = new InputStreamReader(fis, "GB2312");
Reader in = new BufferedReader(isr);
int ch;
while ((ch = in.read()) > -1) {
iCharNum += 1;
buffer.append((char)ch);
}
in.close();
return buffer.toString();
}
catch (IOException e) {
e.printStackTrace();
return null;
}
}
}
?
编码转化的过程如下：
GB2312------------------>Unicode------------->Big5
?
import java.io.*;
import java.util.*;
?
public class gb2big5 {
?
static int iCharNum=0;
?
public static void main(String[] args) {
System.out.println("Input GB2312 file, output Big5 file.");
if (args.length!=2) {
System.err.println("Usage: jview gb2big5 gbfile big5file");
System.exit(1);
String inputString = readInput(args[0]);
writeOutput(inputString,args[1]);
System.out.println("Number of Characters in file: "+iCharNum+".");
}
?
static void writeOutput(String str, String strOutFile) {
try {
FileOutputStream fos = new FileOutputStream(strOutFile);
Writer out = new OutputStreamWriter(fos, "Big5");
out.write(str);
out.close();
}
catch (IOException e) {
e.printStackTrace();
e.printStackTrace();
}
}
?
static String readInput(String strInFile) {
StringBuffer buffer = new StringBuffer();
try {
FileInputStream fis = new FileInputStream(strInFile);
InputStreamReader isr = new InputStreamReader(fis, "GB2312");
Reader in = new BufferedReader(isr);
int ch;
while ((ch = in.read()) > -1) {
iCharNum += 1;
buffer.append((char)ch);
}
in.close();
return buffer.toString();
}
catch (IOException e) {
e.printStackTrace();
return null;
}
}
}
?
编码转化的过程如下：
GB2312------------------>Unicode------------->Big5
