設想如下：啟動服務端--啟動客戶端，鍵入數據，發送--服務端接收數據，打印出來，鍵入數據，發送--客戶端接收數據，打印出來，鍵入數據，發送--如此無限反復--public?class?Server?{
????static?BufferedReader?br?=?null;
????static?BufferedWriter?bw?=?null;
????static?Scanner?scanner?=?new?Scanner(System.in);
????
????public?static?void?main(String[]?args)?{
??????try?{
??????????ServerSocket?serverSocket?=?new?ServerSocket(8877);
????????System.out.println("這里是服務端，等待客戶端連接");
????????Socket?socket?=?serverSocket.accept();
????????System.out.println("已和客戶端建立連接");
br?=?new?BufferedReader(new?InputStreamReader(socket.getInputStream()));
bw?=?new?BufferedWriter(new?OutputStreamWriter(socket.getOutputStream()));
Receiver();
}?catch?(IOException?e)?{
e.printStackTrace();
}
}
public?static?void?send()?{
String?info?=?scanner.nextLine();
try?{
bw.write(info);
bw.flush();
}?catch?(IOException?e)?{
e.printStackTrace();
}
Receiver();
}
public?static?void?Receiver()?{
String?info?=?null;
try?{
while?((info?=?br.readLine())?!=?null)?{
System.out.println(info);
}
}?catch?(IOException?e)?{
e.printStackTrace();
}
send();
}
}客戶端類似，也是一個send()一個receiver()方法，先調用send方法發送然后調用receiver接收，無限循環。但執行起來在鍵入數據后卻無法發送，按回車發送不出去，怪事。后來我嘗試另一種寫法，每次在方法里面創建輸入輸出流，然后在finally里面關閉public?class?Server?{
static?Scanner?scanner?=?new?Scanner(System.in);
static?Socket?socket;
public?static?void?main(String[]?args)?{
try?{
ServerSocket?serverSocket?=?new?ServerSocket(8877);
System.out.println("這里是服務端，等待客戶端連接");
socket?=?serverSocket.accept();
System.out.println("已和客戶端建立連接");
Receiver();
}?catch?(IOException?e)?{
e.printStackTrace();
}
}
public?static?void?send()?{
String?info?=scanner.nextLine();
try?{
BufferedWriter?bw?=??new?BufferedWriter(new?OutputStreamWriter(socket.getOutputStream()));
bw.write(info);
bw.flush();
}?catch?(IOException?e)?{
e.printStackTrace();
}?finally?{
try?{
socket.shutdownOutput();
}?catch?(IOException?e)?{
e.printStackTrace();
}
Receiver();
}
}
public?static?void?Receiver()?{
String?info?=?null;
try?{
BufferedReader?br?=?new?BufferedReader(new?InputStreamReader(socket.getInputStream()));
while?((info?=?br.readLine())?!=?null)?{
System.out.println(info);
}
}?catch?(IOException?e)?{
e.printStackTrace();
}?finally?{
try?{
socket.shutdownInput();
}?catch?(IOException?e)?{
e.printStackTrace();
}
send();
}
}
}這樣能循環一次，但后面就提示流=已經關閉，是不是意味著shutdown輸入輸出流后就不能重新打開了？但不關閉的話又會出現和上面一樣的情況。請問大神們這樣子到底應該怎么寫呢？
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