java中URLEncode和URLDecode

URLEncode和URLDecode用于完成普通字符串和 application/x-www-from-urlencoded MIME字符串之间的相互转化  

如果传递的字符串中包含非西欧字符的字符串，会被转化成%XX%XX   XX为十六进制的数字

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2. try {  
3.             // 将application/x-www-from-urlencoded字符串转换成普通字符串    
4.             String keyWord = URLDecoder.decode("%C4%E3%BA%C3", "GBK");    
5.             System.out.println(keyWord);  //输出你好  
6.             // 将普通字符创转换成application/x-www-from-urlencoded字符串    
7.             String urlString = URLEncoder.encode("你好", "GBK");  //输出%C4%E3%BA%C3  
8.   
9.             System.out.println(urlString);  
10.         } catch (UnsupportedEncodingException e) {  
11.             // TODO Auto-generated catch block  
12.             e.printStackTrace();  
13.         }    

try {
      // 将application/x-www-from-urlencoded字符串转换成普通字符串  
      String keyWord = URLDecoder.decode("%C4%E3%BA%C3", "GBK");  
      System.out.println(keyWord);  //输出你好
      // 将普通字符创转换成application/x-www-from-urlencoded字符串  
      String urlString = URLEncoder.encode("你好", "GBK");  //输出%C4%E3%BA%C3
    System.out.println(urlString);
  } catch (UnsupportedEncodingException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
  }  </pre><br><br><p></p>
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