java中unicode和中文相互转换的简单实现

如下所示：

package test.com.gjob.services;
  import java.util.properties;
   public class test { 
      public static void main(string[] args) { 
      string s = "简介"; 
      string tt = gbencoding(s); 
  //    string tt1 = "你好，我想给你说一个事情";
      system.out.println(decodeunicode("\\u7b80\\u4ecb")); 
  //    system.out.println(decodeunicode(tt1)); 
      system.out.println(htmldecoder.decode("中国"));
      string s1 = "\u7b80\u4ecb";
      system.out.println(s.indexof("\\"));
     } 
     public static string gbencoding(final string gbstring) { 
     char[] utfbytes = gbstring.tochararray(); 
        string unicodebytes = ""; 
        for (int byteindex = 0; byteindex < utfbytes.length; byteindex++) { 
           string hexb = integer.tohexstring(utfbytes[byteindex]); 
            if (hexb.length() <= 2) { 
              hexb = "00" + hexb; 
           } 
            unicodebytes = unicodebytes + "\\u" + hexb; 
          } 
          system.out.println("unicodebytes is: " + unicodebytes); 
          return unicodebytes; 
       } 
      
       public static string decodeunicode(final string datastr) { 
        int start = 0; 
         int end = 0; 
         final stringbuffer buffer = new stringbuffer(); 
         while (start > -1) { 
           end = datastr.indexof("\\u", start + 2); 
           string charstr = ""; 
           if (end == -1) { 
             charstr = datastr.substring(start + 2, datastr.length()); 
           } else { 
             charstr = datastr.substring(start + 2, end); 
           } 
           char letter = (char) integer.parseint(charstr, 16); // 16进制parse整形字符串。 
          buffer.append(new character(letter).tostring()); 
          start = end; 
         } 
         return buffer.tostring(); 
       } 
     }

public static string decodeunicode(string thestring) {  
 
   char achar;  
 
   int len = thestring.length();  
 
   stringbuffer outbuffer = new stringbuffer(len);  
 
   for (int x = 0; x < len;) {  
 
   achar = thestring.charat(x++);  
 
   if (achar == '\\') {  
 
    achar = thestring.charat(x++);  
 
    if (achar == 'u') {  
 
    // read the xxxx  
 
    int value = 0;  
 
    for (int i = 0; i < 4; i++) {  
 
     achar = thestring.charat(x++);  
 
     switch (achar) {  
 
     case '0':  
 
     case '1':  
 
     case '2':  
 
     case '3':  
 
    case '4':  
 
     case '5':  
 
     case '6':  
      case '7':  
      case '8':  
      case '9':  
      value = (value << 4) + achar - '0';  
      break;  
      case 'a':  
      case 'b':  
      case 'c':  
      case 'd':  
      case 'e':  
      case 'f':  
      value = (value << 4) + 10 + achar - 'a';  
      break;  
      case 'a':  
      case 'b':  
      case 'c':  
      case 'd':  
      case 'e':  
      case 'f':  
      value = (value << 4) + 10 + achar - 'a';  
      break;  
      default:  
      throw new illegalargumentexception(  
       "malformed  \\uxxxx  encoding.");  
      }  
 
     }  
     outbuffer.append((char) value);  
     } else {  
     if (achar == 't')  
      achar = '\t';  
     else if (achar == 'r')  
      achar = '\r';  
 
     else if (achar == 'n')  
 
      achar = '\n';  
 
     else if (achar == 'f')  
 
      achar = '\f';  
 
     outbuffer.append(achar);  
 
     }  
 
    } else  
 
    outbuffer.append(achar);  
 
    }  
 
    return outbuffer.tostring();  
 
   }

以上这篇java中unicode和中文相互转换的简单实现就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。