Android字符串转Ascii码实例代码

package com.my.page;
public class stringtoascii {

    private static string tohexutil(int n){
        string rt="";
        switch(n){
        case 10:rt+="a";break;
        case 11:rt+="b";break;
        case 12:rt+="c";break;
        case 13:rt+="d";break;
        case 14:rt+="e";break;
        case 15:rt+="f";break;
        default:
            rt+=n;
        }
        return rt;
    }

    public static string tohex(int n){
        stringbuilder sb=new stringbuilder();
        if(n/16==0){
            return tohexutil(n);
        }else{
            string t=tohex(n/16);
            int nn=n%16;
            sb.append(t).append(tohexutil(nn));
        }
        return sb.tostring();
    }

    public static string parseascii(string str){
        stringbuilder sb=new stringbuilder();
        byte[] bs=str.getbytes();
        for(int i=0;i<bs.length;i++)
            sb.append(tohex(bs[i]));
        return sb.tostring();
    }

    public static void main(string args[]){
        string s="xyz";
        system.out.println("转换后的字符串是："+stringtoascii.parseascii(s));
    }
}