1,如何把Unicode转化为正常字符呢?

/*** 把unicode转化为中文* @param str* @return*/public static String unicodeToChinese(String str) {if (IsChineseUtil.isHasChinses2(str))//判断是否有中文字符return str;if (str.indexOf("\\u") == -1 || str == null || "".equals(str.trim())) {/*若不是unicode，则直接返回*/return str.replaceAll("\\\\ ", " ");//删掉英文中的\,such as "default\ value1"/* 主要是针对 zk 中的国际化问题 */}StringBuffer sb = new StringBuffer();if(!str.startsWith("\\u")){/*若开头不是unicode，如“abc\u4e2d\u56fd” */int index=str.indexOf("\\u");sb.append(str.substring(0, index));str=str.substring(index);}if (str.endsWith(":")) /*如“\u4e2d\u56fd：” */{str = str.substring(0, str.length() - 1);}String[] chs = str.trim().split("\\\\u");for (int i = 0; i < chs.length; i++) {String ch = chs[i].trim();if (ch != null && !"".equals(ch)) {int length_ch=ch.length();if(length_ch>4){length_ch=4;}//中文的长度是4，英文的长度是2sb.append((char) Integer.parseInt(ch.substring(0, length_ch), 16));//按照十六进制解析if (ch.length() > 4) {sb.append(ch.substring(4));}}}return sb.toString();}

应用:

selectContent=Conversion.unicodeToChinese(selectContent);

依赖的方法:

    public static boolean isHasChinses2(String str){String encodeName = "UTF-8";char[] chars = str.toCharArray();for (int i = 0; i < chars.length; i++){try{char c = chars[i];int leng = getEncodeLength(c, encodeName);//                System.out.println(singleStr + "\t" + leng);if (leng == 9)//表示是中文字符{
//                    System.out.println("有中文");return true;}}catch (UnsupportedEncodingException e){e.printStackTrace();}catch (MyException e){e.printStackTrace();}}return false;}public static int getEncodeLength(String str, String encodeName)throws MyException, UnsupportedEncodingException{//返回值为9 的话，则说明有中文。if (str.length() != 1){throw new MyException("超过一个字符");}String encod = URLEncoder.encode(str, "UTF-8");return encod.length();}public static int getEncodeLength(char c, String encodeName)throws MyException, UnsupportedEncodingException{//返回值为9 的话，则说明有中文。return getEncodeLength(String.valueOf(c), encodeName);}