The expression of JAVA tool class and special character filter __java

Emojiutils

Package com.lh.wx.utils;
Import Java.util.regex.Matcher;

Import Java.util.regex.Pattern;

Import Org.apache.http.util.TextUtils;
            public class Emojiutils {public static string filter (String str) {if (str = NULL | | str.length () = 0) {
        Return "";
        StringBuffer sb = new StringBuffer ();
            for (int i=0;i<str.length (); i++) {int ch = str.charat (i);
            int min = integer.parseint ("E001", 16);
            int max = Integer.parseint ("E537", 16);
            if (ch >= min && ch <= max) {sb.append ("");
            }else{Sb.append ((char) ch);
    } return sb.tostring ();
            /** * Filter Nickname SPECIAL expression * * public static string FilterName (String name) {if (name==null) {

        return null;
        } if ("". Equals (Name.trim ()) {return "";
    Pattern patter = Pattern.compile ("[A-za-z0-9\u4e00-\u9fa5]");    Matcher match = patter.matcher (name);
        StringBuffer buffer = new StringBuffer ();
        Boolean flag=false;
        while (Match.find ()) {Buffer.append (Match.group ());
        } if (!name.equals (buffer.tostring ())) {flag=true; } if (flag) return "?"   
        +buffer.tostring ();
    else return buffer.tostring (); /** * Converts the emoji expression in the string to Unicode encoding * @param src * @return/public static string Emoji2unicod

        E (String src) {stringbuffer unicode = new StringBuffer ();
            for (int i = 0; i < src.length (); i++) {char c = src.charat (i);
            int codepoint = Src.codepointat (i);
            if (Isemojicharacter (codepoint)) {unicode.append ("\\u"). Append (Integer.tohexstring (c));
            else {unicode.append (c);
    } return unicode.tostring (); /** * Determine whether to include emoji symbol * @param codEpoint * @return/public static Boolean isemojicharacter (int codepoint) {return (codepoint >= 0x2600 && codepoint <= 0x27bf)//miscellaneous symbols and symbols fonts | | Codepoint = = 0x303d | | Codepoint = = 0x2049 | | Codepoint = = 0X203C | | (codepoint >= 0x2000 && codepoint <=)//| | (codepoint >= 0x2028 && codepoint <=)//| | Codepoint = = 0x205f//| | (codepoint >= 0x2065 && codepoint <= 0x206f)/* Punctuation area * (codepoint >= 0x2100 && codepoint <= 0x214f)//Letter Symbols | | (codepoint >= 0x2300 && codepoint <= 0x23ff)//various technical symbols | | (codepoint >= 0x2b00 && codepoint <= 0X2BFF)//arrow A | | (codepoint >= 0x2900 && codepoint <= 0x297f)//arrow B | | (Codepoint >= 0x3200 && Codepoint <= 0x32ff)//Chinese Symbols | | (codepoint >= 0xd800 && codepoint <= 0xDFFF)//high/low position substitution reserved Area | | (codepoint >= 0xe000 && codepoint <= 0xf8ff)//private reserved Area | | (codepoint >= 0xfe00 && codepoint <= 0xfe0f)//mutation Selector | | Codepoint >= 0x10000; Plane in the second plane, Char can not save, all turn}/** * Convert Unicode characters to Chinese * @param src * @return/public static
       String Unicode2emoji (String src) {if (Textutils.isempty (src)) {return ";
       } stringbuffer retbuf = new StringBuffer ();
       int maxloop = Src.length (); for (int i = 0; i < Maxloop i++) {if (Src.charat (i) = = ' \ ') {if ((I < maxLoop-5) &am p;& ((Src.charat (i + 1) = = ' u ') | | (Src.charat (i + 1) = = ' U ')) 
                       {try {retbuf.append ((char) integer.parseint (src.substring (i + 2, i + 6), 16)); i + 5;
                   The catch (NumberFormatException localnumberformatexception) {retbuf.append (src).
                   CharAt (i));
               } else {retbuf.append (Src.charat (i));
           } else {retbuf.append (Src.charat (i));
   } return retbuf.tostring ();
 }
}