ASCII string 互转

/**
     * 字符串转换为Ascii
     * @param value
     * @return
     */
    public static String stringToAscii(String value)  
    {  
        StringBuffer sbu = new StringBuffer();  
        char[] chars = value.toCharArray();   
        for (int i = 0; i < chars.length; i++) {  
            if(i != chars.length - 1)  
            {  
                sbu.append((int)chars[i]).append(",");  
            }  
            else {  
                sbu.append((int)chars[i]);  
            }  
        }  
        return sbu.toString();  
}

 /**
     * Ascii转换为字符串
     * @param value
     * @return
     */
    public static String asciiToString(String value)
    {
        StringBuffer sbu = new StringBuffer();
        String[] chars = value.split(",");
        for (int i = 0; i < chars.length; i++) {
            sbu.append((char) Integer.parseInt(chars[i]));
        }
        return sbu.toString();
    }