服務(wù)端與客戶端的數(shù)據(jù)是怎樣進(jìn)行傳輸?shù)?？為什么在客戶端?chuàng)建的數(shù)據(jù)報(bào)會(huì)包含服務(wù)器對(duì)客戶端的相應(yīng)數(shù)據(jù)？

//1.創(chuàng)建數(shù)據(jù)報(bào)，用于接收服務(wù)器端響應(yīng)的數(shù)據(jù)

byte[] data2=new byte[1024];

DatagramPacket packet2=new DatagramPacket(data2, data2.length);

//2.接收服務(wù)器響應(yīng)的數(shù)據(jù)

socket.receive(packet2);

//3.讀取數(shù)據(jù)

String reply=new String(data2, 0, packet2.getLength());

System.out.println("我是客戶端，服務(wù)器說(shuō)："+reply);