java 替换四个字节的字符 '-xF0-x9F-x98-x84-xF0-x9F）的解决方案 😁

1/**
2     * 替换四个字节的字符 '\xF0\x9F\x98\x84\xF0\x9F）的解决方案 😁
3     * @author ChenGuiYong
4     * @data 2015年8月11日 上午10:31:50
5     * @param content
6     * @return
7     */
8    public static String removeFourChar(String content) {
9        byte[] conbyte = content.getBytes();
10        for (int i = 0; i < conbyte.length; i++) {
11            if ((conbyte[i] & 0xF8) == 0xF0) {
12                for (int j = 0; j < 4; j++) {                          
13                    conbyte[i+j]=0x30;                     
14                }  
15                i += 3;
16            }
17        }
18        content = new String(conbyte);
19        return content.replaceAll("0000", "");
20    }
21
22结果：
23
24String title = "ff的范德萨分😁😁😁😁Llfldakf;dsk。f😁😁😁😁😁😁daslfjdsa;lfkjdsd'j'l'f'k'd'j'sa'l'k";
25        System.out.println(Test_Common2.removeFourChar(title).replaceAll("0000", ""));
26        //ff的范德萨分Llfldakf;dsk。fdaslfjdsa;lfkjdsd'j'l'f'k'd'j'sa'l'k