java Unicode编码转中文

java Unicode编码转中文

/*
* unicode编码转中文
*/
public static String decodeUnicode(final String dataStr) {try{final StringBuffer buffer = new StringBuffer(dataStr==null?"":dataStr);
        if(StringUtils.isNotBlank(dataStr) && ains("\u")) {buffer.delete(0,buffer.length());
            int start = 0;
            int end = 0;
            while (start > -1) {end = dataStr.indexOf("\u", start + 2);
                String a="";//如果夹着非unicode编码的字符串，存放在这
                String charStr = "";
                if (end == -1) {if(dataStr.substring(start + 2, dataStr.length()).length()>4){charStr = dataStr.substring(start + 2, start + 6);
                        a = dataStr.substring(start + 6, dataStr.length())  ;
                    }else{charStr = dataStr.substring(start + 2, dataStr.length());
                    }} else {charStr = dataStr.substring(start + 2, end);
                }char letter = (char) Integer.im(), 16); // 16进制parse整形字符串。
                buffer.append(new Character(letter).toString());
                if(StringUtils.isNotBlank(a)){buffer.append(a);
                }start = end;
            }}String();
    } catch (Exception e){logger.error(dataStr+" 字符串转换失败",e);
    }return dataStr;
}