计算机网络Socket编程

服务器端： import java.io.*; import java.net.*; public class Server { public static void main(String[] args) { ServerSocket server=null; Socket custom=null; String s=null; DataOutputStream out=null; DataInputStream in=null; double num[]=new double[2]; int i=0; try { server=new ServerSocket(6000); } catch(IOException e) { System.out.println(e); } try { System.out.println("等待客户端呼叫"); custom=server.accept(); out=new DataOutputStream(custom.getOutputStream()); in=new DataInputStream(custom.getInputStream()); while(i<2) { s=in.readUTF(); num[i]=Double.parseDouble(s); System.out.println("服务器收到的数据为："+num[i]); i++; } double temp0,temp1,temp2,temp3; temp0=num[0]+num[1]; temp1=num[0]-num[1]; temp2=num[0]*num[1]; temp3=num[0]/num[1]; out.writeUTF(temp0+""); out.writeUTF(temp1+""); out.writeUTF(temp2+""); out.writeUTF(temp3+""); } catch(Exception ee) { System.out.println("与客户端断开连接"+ee); } } } 客户端： import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.DataInputStream; import java.io.DataOutputStream; import java.net.Socket; import javax.swing.*; import javax.swing.border.*; import java.util.*; public class Client { public static void main(String args[]) { new ClientWindow(); } } class ClientWindow extends Frame implements ActionListener { String s=null; Socket mysocket; DataOutputStream out=null; DataInputStream in=null; String temp[]=new String[4]; Box baseBox=Box.createHorizontalBox(); Box box1=Box.createVerticalBox(); Box box2=Box.createVerticalBox(); Label lnum1=new Label("第一个数"); Label lnum2=new Label("第二个数"); Label ladd=new Label("和"); Label lsubtract=new Label("差"); Label lmultiple=new Label("积"); Label ldivide=new Label("商"); TextField tnum1=new TextField(7); TextField tnum2=new TextField(7); TextField tadd=new TextField(7); TextField tsubtract=new TextField(7); TextField tmultiple=new TextField(7); TextField tdivide=new TextField(7); Button bcompute=new Button("计算结果"); ClientWindow() { box1.add(lnum1); box1.add(Box.createVerticalStrut(8)); box1.add(lnum2); box1.add(Box.createVerticalStrut(8)); box1.add(ladd); box1.add(Box.createVerticalStrut(8)); box1.add(lsubtract); box1.add(Box.createVerticalStrut(8)); box1.add(lmultiple); box1.add(Box.createVerticalStrut(8)); box1.add(ldivide); box1.add(Box.createVerticalStrut(8)); box2.add(tnum1); box2.add(Box.createVerticalStrut(8)); box2.add(tnum2); box2.add(Box.createVerticalStrut(8)); box2.add(tadd); box2.add(Box.createVerticalStrut(8)); box2.add(tsubtract); box2.add(Box.createVerticalStrut(8)); box2.add(tmultiple); box2.add(Box.createVerticalStrut(8)); box2.add(tdivide); box2.add(Box.createVerticalStrut(8)); baseBox.add(box1); baseBox.add(Box.createHorizontalStrut(12)); baseBox.add(box2); setLayout(new FlowLayout()); add(baseBox); add(bcompute); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); bcompute.addActionListener(this); setBounds(120,120,400,360); setVisible(true); } public void actionPerformed(ActionEvent ee) { if(ee.getSource()==bcompute) { int x,y; x=Integer.parseInt(tnum1.getText()); y=Integer.parseInt(tnum2.getText()); try { mysocket=new Socket("58.192.1.138",6000); out=new DataOutputStream(mysocket.getOutputStream()); in=new DataInputStream(mysocket.getInputStream()); out.writeUTF(""+x); out.writeUTF(""+y); String s=in.readUTF(); StringTokenizer sti=new StringTokenizer(s,","); tadd.setText(sti.nextToken()); tsubtract.setText(sti.nextToken()); tmultiple.setText(sti.nextToken()); tdivide.setText(sti.nextToken()); } catch(Exception e2) {System.out.println(e2.toString());} } } }