通过套接字发送对象和对象数组
通过套接字发送对象和对象数组
提问于 2014-10-08 05:07:26
我正在创建一个java服务器和一个java客户端。我需要从服务器发送到客户端，反之亦然，一个对象，然后是一个对象数组。我如何才能做到这一点？我需要序列化对象类吗？
这是服务器：
import java.io.*;
import java.net.*;
public class Server extends Thread {
private final ServerSocket Server;
public static void main(String[] args) throws Exception {
new Server();
}
public Server() throws Exception {
Server = new ServerSocket(3000);
System.out.println("Server started on port 3000.");
this.start();
}
@Override
public void run() {
while (true) {
try {
System.out.println("Server is listening to new connections...");
Socket client = Server.accept();
System.out.println("Connection accepted from: " + client.getInetAddress());
Connect c = new Connect(client);
} catch (IOException exception) {
System.out.println(exception.getMessage());
}
}
}
class Connect extends Thread {
private Socket client = null;
BufferedReader in = null;
PrintStream out = null;
public Connect(Socket clientSocket) {
client = clientSocket;
try {
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
out = new PrintStream(client.getOutputStream(), true);
} catch (IOException mainException) {
try {
client.close();
} catch (IOException exception) {
System.out.println(exception.getMessage());
}
}
this.start();
}
@Override
public void run() {
try {
out.close();
in.close();
client.close();
} catch (IOException exception) {
System.out.println(exception.getMessage());
}
}
}这是我的客户：
import java.io.*;
import java.net.*;
public class Client {
String remoteAddress = "localhost";
BufferedReader in = null;
PrintStream out = null;
Socket socket = null;
String message = null;
String username = null;
String password = null;
public Client(String username, String password) {
this.username = username;
this.password = password;
}
public String connect() {
try {
// begin a new client connection
socket = new Socket(remoteAddress, 3000);
// open I-O channels
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = new PrintStream(socket.getOutputStream(), true);
} catch (Exception exception) {
return false;
System.out.println(exception.getMessage());
}
return "ERROR";
}
public boolean disconnect() throws IOException {
// close flushes I-O with the server
out.close();
in.close();
return true;
}
}相反，这是一个类：
class Contact {
private String name;
private String surname;
private String telephone;
private String birthday;
public String getName() {
return name;
}
public String getSurname() {
return surname;
}
public String getTelephone() {
return telephone;
}
public String getBirthday() {
return birthday;
}
public void setName(String value) {
name = value;
}
public void setSurname(String value) {
surname = value;
}
public void setTelephone(String value) {
telephone = value;
}
public void setBirthday(String value) {
birthday = value;
}
}目前，只有服务器可以向客户端发送数据(对象、数组或仅对象)，但我正在考虑让两者都能做到这一点。另外，发送一个对象(就像上面的类)，一个相同对象的数组和一个不同对象的数组(我不能用经典数组获得它，对吗？我可以使用ArrayList吗？)
谢谢。
回答 2
Stack Overflow用户
发布于 2014-10-08 05:10:18
那java.io.ObjectOutputStream呢？尝试此http://docs.oracle.com/javase/7/docs/api/java/io/ObjectOutputStream.html
编辑:以下是包含在-slightly modified类的javadoc中的示例，如注释中所示：
ObjectOutputStream oos = new ObjectOutputStream(client.getOutputStream());
oos.writeInt(12345);
oos.writeObject("Today");
oos.writeObject(new Date());
oos.close();在另一边应该有一个java.io.ObjectInputStream。
Stack Overflow用户
发布于 2014-10-08 05:16:01
是的，你应该为此使用序列化。在这种情况下，您可以使用ObjectOutpuStream和writeObject()方法。因此，管理它非常简单，无需考虑计算位数等问题。http://www.tutorialspoint.com/java/java_serialization.htm
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/26245306
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