1. String string = "id=9586&err=成功&src=1393904****&msg=你好吗&dst=&time=200505241713" ;//地址
2. String param = "src";//参数
3. String re = string.split(param)[1].substring(1, string.split(param)[1].indexOf("&"));
4. System.err.println(re);//re=1393904****