Java实现 中文转换成Unicode编码 和 Unicode编码转换成中文

想要实现中文字符转换为Unicode编码的话主要用到的是一个这样的包，自己可以去API文档里面查看下的

java.util.Properties; 

直接进入主题吧，主要是

package Test01;

import java.util.Properties;    
public class Test {            
    public static void main(String[] args) {            
        String s = "简介";           
        String tt = gbEncoding(s);          
        System.out.println(decodeUnicode("\u7b80\u4ecb"));      
        System.out.println(HTMLDecoder.decode("开始"));         
        String s1 = "u7b80u4ecb";          
        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();             
        }         
    }