?? socketutil.java
字號:
package com.tarena.exam.util;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.util.Properties;
public class SocketUtil {
private static Socket s;
private static ObjectInputStream ois;//確保輸入輸出流是一個對象
private static ObjectOutputStream oos;
public static Socket createSocket(){
Properties pro=new Properties();
try {
pro.load(new FileInputStream("client.cfg"));
String serverIP=pro.getProperty("ServerIP");
int serverPort=Integer.parseInt(pro.getProperty("ServerPort"));
s=new Socket(serverIP,serverPort);
return s;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void closeSocket(){
try {
s.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public static ObjectInputStream getInputStream(){
try {
if(ois==null){
ois= new ObjectInputStream(s.getInputStream());
}
} catch (IOException e) {
e.printStackTrace();
}
return ois;
}
public static ObjectOutputStream getOutputStream(){
try {
if(oos==null)
oos= new ObjectOutputStream(s.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
return oos;
}
}
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