[英]Sending ArrayList from server side to client side using TCP over socket
[英]Sending an ArrayList<String> from the server side to the client side over TCP using socket?
我正在嘗試通過 TCP 將一個對象從服務器端套接字發送到客戶端套接字。 我無法找出問題出在哪里。
這是我在客戶端遇到的錯誤:
java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2280)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2749)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:779)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:279)
at ClientSide.main(ClientSide.java:16)
服務器端代碼:
import java.io.*;
import java.net.*;
import java.util.ArrayList;
public class ServerSide {
public static void main(String[] args) {
try
{
ServerSocket myServerSocket = new ServerSocket(9999);
Socket skt = myServerSocket.accept();
ArrayList<String> my = new ArrayList<String>();
my.set(0,"Bernard");
my.set(1, "Grey");
try
{
ObjectOutputStream objectOutput = new ObjectOutputStream(skt.getOutputStream());
objectOutput.writeObject(my);
}
catch (IOException e)
{
e.printStackTrace();
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
客戶端代碼:
import java.io.*;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.ArrayList;
public class ClientSide {
public static void main(String[] args)
{
try {
Socket socket = new Socket("10.1.1.2",9999);
ArrayList<String> titleList = new ArrayList<String>();
try {
ObjectInputStream objectInput = new ObjectInputStream(socket.getInputStream()); //Error Line!
try {
Object object = objectInput.readObject();
titleList = (ArrayList<String>) object;
System.out.println(titleList.get(1));
} catch (ClassNotFoundException e) {
System.out.println("The title list has not come from the server");
e.printStackTrace();
}
} catch (IOException e) {
System.out.println("The socket for reading the object has problem");
e.printStackTrace();
}
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
從set
更改為add
可以解決問題
ArrayList<String> my = new ArrayList<String>();
my.add("Bernard");
my.add("Grey");
附: 正如其他人所建議的,這不是一個好主意,但僅用於學習
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