java 中文转换16进制

JAVA字符编码系列一：Unicode,GBK,GB2312,UTF-8概念基础 : http://blog.csdn.net/qinysong/archive/2006/09/05/1179480.aspx 

JAVA字符编码系列二：Unicode,ISO-8859,GBK,UTF-8编码及相互转换 http://blog.csdn.net/qinysong/archive/2006/09/05/1179489.aspx

JAVA字符编码系列三：Java应用中的编码问题 http://blog.csdn.net/qinysong/archive/2006/09/05/1179513.aspx

java字符集 http://blog.csdn.net/shangye/archive/2007/05/14/1608951.aspx

在网上搜查，终于凑成了一个java文件。。。实现将本地文件或输入的字符串或UNICODE码转化成其他编码方式。

  import java.io.*;

public class StrToUnicode
{ 
 static Integer outIng;
 static String unicodeStr;
 static boolean isSend = true;

    public static void main(String[] args)
 {     try{
                InputStreamReader reader = new InputStreamReader(System.in);
    BufferedReader input = new BufferedReader(reader);
    System.out.println("Enter your number:(input end,the app exit) ");
    String name = input.readLine();
       
                if(name !="end")
    {    //方法一:将asceII字符串转成unicode字符串
              //String unicodeTmp=toUnicode(name);
           //System.out.println("unicodeTmp="+unicodeTmp);
      //方法二:将asceII字符串转成unicode字符串
          //String unicodeTmp = new String(name.getBytes("iso-8859-1"),"gb2312");
                         //System.out.println("unicodeTmp="+unicodeTmp);
                     //将字符串转化成十六进制unicode码
           String unicodeTmp=toFormatUnicode(name);
        System.out.println("unicodeTmp="+unicodeTmp);
       
    }
         }catch(Exception ex){
    System.out.println("Exception :"+ex);
   }
     }
   public static String toStr(String unicode)
  {  String strRet = "";
        

        return strRet;
   }  

  public static String toUnicode(String strText)
  throws UnsupportedEncodingException {
   char c;
   String strRet = "";
   int intAsc;
   String strHex;
   for (int i = 0; i < strText.length(); i++) {
    c = strText.charAt(i);
    intAsc = (int) c;
    if (intAsc > 128) {
     strHex = Integer.toHexString(intAsc);
     strRet += "//u" + strHex;
    } else {
      strRet = strRet + c;
    }
   }
   return strRet;
  }
     public static String toFormatUnicode(String strText)
   throws UnsupportedEncodingException {
           char c;
   String strRet = "";
   int intAsc;
   String strHex;
   for (int i = 0; i < strText.length(); i++) {
        c = strText.charAt(i);
        intAsc = (int) c;
     strHex = Integer.toHexString(intAsc);
     if (intAsc > 128) {
          strRet += "//u" + strHex;
     }else{
       strRet += "//u00" + strHex;
     }
   } 
  return strRet;
  }

  public String readUnicodeFile(String filename) {
  StringBuffer buffer = null;
  InputStream is = null;
  InputStreamReader isr = null;
  try {
   Class c = this.getClass();
   is = c.getResourceAsStream(filename);
   if (is == null)  throw new Exception("File Does Not Exist");

    isr = new InputStreamReader(is,"UTF8");

     buffer = new StringBuffer();
   int ch;
   while ((ch = isr.read()) > -1) {
    buffer.append((char)ch);
   }
   if (isr != null)
    isr.close();
     } catch (Exception ex) {
   System.out.println(ex);
  }
  return buffer.toString();
      }
 /*

////////22222
String str="test测试";
new String(str.getBytes("iso-8859-1"));

///////33333
new String(str.getBytes("iso-8859-1"),"gb2312");
*/
   private String convertStrToUnicode(String value)
 {
  short valueAsShort = Short.parseShort(value.trim(),16);
  return String.valueOf((char)valueAsShort);
 }
  public String convertUnicodeToStr(String unicode)
 { 
      
    try{ 
     byte[]  temp_t=unicode.getBytes("ISO8859-1"); 
           String  temp=new  String(temp_t); 
           System.out.println(temp);
     return temp; 
          }catch(Exception  e){} 
  return null; 
     }
//*************如何将确定的Unicode代码转化为相应的字符（串）？***************//
//使用java.util.Properties类的源代码里面的这两个方法
// private   String   loadConvert(String   theString)
// private   String   loadConvert(String   theString)  
// 他们就符合你的要求，这两个方法的代码比较常，
//原因是其中的10进制数和16进制的转换
//没有使用Integer类里面的现成的方法，而是自己直接使用算法转换的。。        
  //private   String   loadConvert(String   theString,   boolean   escapeSpace)  
 //########java所有支持的文件编码 http://java.sun.com/j2se/1.4.2/docs/guide/intl/encoding.doc.html 
 public static byte[] convert(byte[] data, String srcEncoding, String targetEncoding)
 {
      // First, decode the data using the source encoding.
      // The String constructor does this (Javadoc).
       try{ String str = new String(data, srcEncoding);

      // Next, encode the data using the target encoding.
      // The String.getBytes() method does this.
 
         byte[] result = str.getBytes(targetEncoding);
         return result;
   }catch(UnsupportedEncodingException ex1){System.out.println("ex1"+ex1);}

      return null;
  }

//try { convert(args[0], args[1], "GB2312", "UTF8"); } // or "BIG5"
//catch (Exception e) {}

  public static void convert(String infile, String outfile, String fromEncoding, String toEncoding)  
  { try{
  // set up byte streams
  InputStream in;
  if (infile != null) in = new FileInputStream(infile);
  else in = System.in;
  OutputStream out;
  if (outfile != null) out = new FileOutputStream(outfile);
  else out = System.out;

  // Use default encoding if no encoding is specified.
  if (fromEncoding == null)
     fromEncoding = System.getProperty("file.encoding");
  if (toEncoding == null)
     toEncoding = System.getProperty("file.encoding");

  // Set up character stream
  Reader r = new BufferedReader(new InputStreamReader(in, fromEncoding));
  Writer w = new BufferedWriter(new OutputStreamWriter(out, toEncoding));

  // Copy characters from input to output.  The InputStreamReader
  // converts from the input encoding to Unicode,, and the OutputStreamWriter
  // converts from Unicode to the output encoding.  Characters that cannot be
  // represented in the output encoding are output as '?'
  char[] buffer = new char[4096];
  int len;
  while((len = r.read(buffer)) != -1)
    w.write(buffer, 0, len);
  r.close();
  w.flush();
  w.close();
      }catch(UnsupportedEncodingException ex1){System.out.println("ex1"+ex1);}
      catch(IOException ioex1){System.out.println("ioex1"+ioex1);}
  }

///////start--->666666666666666中文转换成uncode,又转成中文
//http://community.csdn.net/Expert/topic/5533/5533122.xml?temp=.3077356
//System.out.println(encode("中文"));
//System.out.println(decode(encode("中文")));
/*
 * 16进制数字字符集
 */
private static String hexString="0123456789ABCDEF";
/*
 * 将字符串编码成16进制数字,适用于所有字符（包括中文）
 */
public static String encode(String str)
{
 //根据默认编码获取字节数组
 byte[] bytes=str.getBytes();
 StringBuilder sb=new StringBuilder(bytes.length*2);
 //将字节数组中每个字节拆解成2位16进制整数
  for(int i=0;i<bytes.length;i++)
  {
  sb.append(hexString.charAt((bytes[i]&0xf0)>>4));
  sb.append(hexString.charAt((bytes[i]&0x0f)>>0));
  }
  return sb.toString();
}
/*
 * 将16进制数字解码成字符串,适用于所有字符（包括中文）
 */
public static String decode(String bytes)
{
 ByteArrayOutputStream baos=new ByteArrayOutputStream(bytes.length()/2);
 //将每2位16进制整数组装成一个字节
 for(int i=0;i<bytes.length();i+=2)
 baos.write((hexString.indexOf(bytes.charAt(i))<<4 |hexString.indexOf(bytes.charAt(i+1))));
 return new String(baos.toByteArray());
}
///////End--->666666666666666中文转换成uncode,又转成中文

}