后台接收前台字符串乱码问题

今天遇到一个比较奇怪的问题，后台接收到前台一个文本框传递的数据是乱码，但其它数据正常

最终解决方法是对此文本框数据做加密处理，后台接收后再进行解密，代码如下：

前台加密：escape($('#name').val());

后台解密：
    public static String unescape(String s) {  
        StringBuffer sbuf = new StringBuffer();  
        int i = 0;  
        int len = s.length();  
        while (i < len) {  
            int ch = s.charAt(i);  
            if (ch == '+') {                        // + : map to ' '   
                sbuf.append(' ');  
            } else if ('A' <= ch && ch <= 'Z') {    // 'A'..'Z' : as it was  
                sbuf.append((char)ch);  
            } else if ('a' <= ch && ch <= 'z') {    // 'a'..'z' : as it was  
                sbuf.append((char)ch);  
            } else if ('0' <= ch && ch <= '9') {    // '0'..'9' : as it was  
                sbuf.append((char)ch);  
            } else if (ch == '-' || ch == '_'       // unreserved : as it was  
                || ch == '.' || ch == '!'  
                || ch == '~' || ch == '*'  
                || ch == '/' || ch == '('  
                || ch == ')') {  
                sbuf.append((char)ch);  
            } else if (ch == '%') {  
                int cint = 0;  
                if ('u' != s.charAt(i+1)) {         // %XX : map to ascii(XX)  
                    cint = (cint << 4) | val[s.charAt(i+1)];  
                    cint = (cint << 4) | val[s.charAt(i+2)];  
                    i+=2;  
                } else {                            // %uXXXX : map to unicode(XXXX)  
                    cint = (cint << 4) | val[s.charAt(i+2)];  
                    cint = (cint << 4) | val[s.charAt(i+3)];  
                    cint = (cint << 4) | val[s.charAt(i+4)];  
                    cint = (cint << 4) | val[s.charAt(i+5)];  
                    i+=5;  
                }  
                sbuf.append((char)cint);  
            }  
            i++;  
        }  
        return sbuf.toString();  
    }

private final static byte[] val = {  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,  
        0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F  
    };

问题完美解决