java 汉字转Unicode

 /**
     * 汉字转Unicode
     * @param s
     * @return
     */
    public static String gbEncoding(final String s){
        String str = "";
        if(!"".equals(s) && null!=s){
	        for (int i = 0; i < s.length(); i++) {
	        int ch = (int) s.charAt(i);
	        str += "\\u" + Integer.toHexString(ch);
	        }
        }
        return str;
    }
    /**
     * Unicode转汉字
     * @param str
     * @return
     */
    public static String encodingtoStr(String str){
    	if(!"".equals(str) && null!=str){
	        Pattern pattern = Pattern.compile("(\\\\u(\\p{XDigit}{4}))");
	        Matcher matcher = pattern.matcher(str);
	        char ch;
	        while (matcher.find()) {
	        ch = (char) Integer.parseInt(matcher.group(2), 16);
	        str = str.replace(matcher.group(1), ch + "");
	        }
    	}
        return str;
    }
    /**
     * 将汉字转为Unicode编码
     * @param str
     * @return
     */
    public static String chinaToUnicode(String str){  
        String result="";
        if(!"".equals(str) && null!=str){
	        for (int i = 0; i < str.length(); i++){  
	            int chr1 = (char) str.charAt(i);  
	            if(chr1>=19968&&chr1<=171941){//汉字范围 \u4e00-\u9fa5 (中文)  
	                result+="\\u" + Integer.toHexString(chr1);  
	            }else{  
	                result+=str.charAt(i);  
	            }  
	        }  
        }
        return result;  
    }  
  
    /** 
     * 判断是否为中文字符 
     * @param c 
     * @return 
     */  
    public  boolean isChinese(char c) {  
        Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);  
        if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS  
                || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS  
                || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A  
                || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION  
                || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION  
                || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {  
            return true;  
        }  
        return false;  
    }

评论

3 楼 linksky1018 2014-11-10  

是我弄错啦，我忘了进行url解码了

2 楼 linksky1018 2014-11-10  

纯汉字转换还行

1 楼 linksky1018 2014-11-10  

貌似有问题吧