java代码写客户端,java客户端编程
java写tcp客户端测试类该怎么写
1.TCP服务端的程序编写
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package test;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
public class MyTcp{
private BufferedReader reader;
private ServerSocket serverSocket;
private Socket socket;
/**
* 创建服务端的程序，读取客户端传来的数据
*/
void getserver(){
try {
serverSocket = new ServerSocket(8998); //实例化服务端socket
System.out.println("服务器套接字已经创建成功");
while (true) {
System.out.println("等待客户机的连接:");
socket = serverSocket.accept(); //实例化socket对象
reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); //实例化BufferReader对象
getClientMessage();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void getClientMessage() {
try {
while (true) {
System.out.println("客户机传来的信息是："+reader.readLine());
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
MyTcp myTcp = new MyTcp(); //创建本类对象
myTcp.getserver();
}
}
2.TCP客户端程序编写
package test;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintWriter;
import java.net.Socket;
import java.nio.channels.WritableByteChannel;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.BevelBorder;
public class MyTcpClient extends JFrame{
private PrintWriter printWriter;
Socket socket;
private JTextField jTextField = new JTextField();
private JTextArea jTextArea = new JTextArea();
Container container;
/**
* 创建的Tcp客户端程序
*/
public MyTcpClient (String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
container = this.getContentPane();
final JScrollPane jScrollPane = new JScrollPane();
jScrollPane.setBorder(new BevelBorder(BevelBorder.RAISED)); //显示边框
getContentPane().add(jScrollPane,BorderLayout.CENTER);
jScrollPane.setViewportView(jTextArea);
container.add(jTextField,"South"); //将文本框放在窗体下面
jTextField.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
printWriter.println(jTextField.getText()); //将文本框的信息写入流（为下面的输出流写入信息做准备）
jTextArea.append(jTextField.getText() + "\n");
jTextArea.setSelectionEnd(jTextArea.getText().length());
jTextField.setText(null);
}
});
}
private void connect() {
jTextArea.append("尝试连接中...\n");
try {
socket = new Socket("127.0.0.1",8998);
printWriter = new PrintWriter(socket.getOutputStream(),true); //将printwriter中的信息流写入到套接字的输出流传送给服务端
jTextArea.setText("已完成连接\n\n");
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
MyTcpClient myTcpClient = new MyTcpClient("向服务器发送数据");
myTcpClient.setSize(500,200);
myTcpClient.setVisible(true);
myTcpClient.connect();
}
}
3.效果展示
1先将服务端的程序跑起来
2再将客户端的程序跑起来
3.客户端和服务端进行交互
webservice中怎样用java写客户端程序（）
基于AXIS的web service：
1 比如要建一个Server.java类的web service
public class Server {
public String printInfo(String name){
return "Hello,"+name;
}
}
2 把Server.java改为Server.Jws放到
…\Tomcat 5.5\webapps\axis中，重启服务器
3 访问
4 在cmd中输入 cd D:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\axis\WEB-INF
输入命令：Java -Djava.ext.dirs=lib org.apache.axis.wsdl.WSDL2Java
5 找到…\Tomcat 5.5\webapps\axis\WEB-INF下生成的localhost文件夹复制到工程中
6 建一个Client端的类进行测试：
public class Client {
public static void main(String arg[]) throws ServiceException, RemoteException{
ServerService ss=new ServerServiceLocator();
Server s=ss.getServer();
System.out.println("............"+s.printInfo("shiyou"));
}
}
怎么用java编写简单客户端程序
我这里有一个例子希望能够帮助你
public class Client{
private Socket socket;
try{
Socket socket=new Socket ("localhoast',8088);
ip=InetAddress.getLocalHost();
String localip=ip.getHostAddress();
System.out.println(localip);
String name=ip.getHostName();
System.out.println(name);
}
catch(Exception e){
}
public void start(){
try{
Run r2=new Run();
Thread t1=new Thread(r2);
t1.setDaemon(true);
t1.start();
Scanner sc=new Scanner(System.in);
OutputStream os=socket.getOutputStream();
OutputStreamWriter osw=new OutputStreamWriter(os);
PrintWriter writer=new PrintWriter(osw,true);
while(true){
writer.println(sc.nextLine());
}
}catch(Exception e){
}
}
public static void main(String args[]){
Client client=new Client();
client.start();
}
class Run implements Runnable{
public void run() {
while(true){
try {
InputStream is=socket.getInputStream();
InputStreamReader isr=new InputStreamReader(is);
BufferedReader br=new BufferedReader(isr);
while(true){
String str=br.readLine();
System.out.println("服务器说:"+str);
if("bye".equals(str)){
System.out.println("再见客户端");
System.out.println("聊天结束");
}
}
} catch (IOException e) {
e.printStackTrace();
} finally{
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
}
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