1. 求实现基于java Socket网络通信的客户端和服务器端的源代码。
服务器端Server.java: import java.io.*;import java.net.*; public class Server{ publicstatic void main(String[] args) { try{ ServerSocket s = newServerSocket(9000); while (true) { Socket incoming =s.accept(); try { FileInputStreamfstream = new FileInputStream("Server.java"); //假设输入文件为Server.java DataInputStream in =new DataInputStream(fstream); BufferedReaderbr = new BufferedReader(new InputStreamReader(in)); OutputStreamostream = incoming.getOutputStream(); PrintWriterout = new PrintWriter(ostream, true); String strLine; while ((strLine =br.readLine()) != null) { out.println(strLine); } in.close(); } finally { incoming.close(); } } }catch (Exception e){ e.printStackTrace(); } }} 客户端Client.java: import java.io.*;import java.net.*;import java.util.*; public class Client{ publicstatic void main(String[] args) { try { Sockets = new Socket("localhost", 9000); try { InputStreaminStream = s.getInputStream(); Scannerin = new Scanner(inStream); PrintWriter out = newPrintWriter("test.txt");//假设输出文件为test.txt while(in.hasNextLine()) { Stringline = in.nextLine(); System.out.println(line); out.println(line); } out.close(); } finally { s.close(); } } catch(IOException e) { e.printStackTrace(); } }}
2. java 服务器代码倒出来,就是源码吗
是的。因为源代码，gitlab上下载的代码，后缀名是java的就是源代码，可以用IDEA打开查看，查看某个方法可以实现跳转。所以java服务器代码倒出来，就是源码。
3. 编写代码，使用java ServerSocket创建服务器端ServerSocket的过程。
packagesocket;
importjava.io.BufferedReader;
importjava.io.IOException;
importjava.io.InputStreamReader;
importjava.io.PrintWriter;
importjava.net.ServerSocket;
importjava.net.Socket;
publicclassSocketService{
//搭建服务器端
publicstaticvoidmain(String[]args)throwsIOException{
SocketServicesocketService=newSocketService();
//1、a)创建一个服务器端Socket，即SocketService
socketService.oneServer();
}
publicvoidoneServer(){
try{
ServerSocketserver=null;
try{
server=newServerSocket(5209);
//b)指定绑定的端口，并监听此端口。
System.out.println("服务器启动成功");
//创建一个ServerSocket在端口5209监听客户请求
}catch(Exceptione){
System.out.println("没有启动监听："+e);
//出错，打印出错信息
}
Socketsocket=null;
try{
socket=server.accept();
//2、调用accept()方法开始监听，等待客户端的连接
//使用accept()阻塞等待客户请求，有客户
//请求到来则产生一个Socket对象，并继续执行
}catch(Exceptione){
System.out.println("Error."+e);
//出错，打印出错信息
}
//3、获取输入流，并读取客户端信息
Stringline;
BufferedReaderin=newBufferedReader(newInputStreamReader(socket.getInputStream()));
//由Socket对象得到输入流，并构造相应的BufferedReader对象
PrintWriterwriter=newPrintWriter(socket.getOutputStream());
//由Socket对象得到输出流，并构造PrintWriter对象
BufferedReaderbr=newBufferedReader(newInputStreamReader(System.in));
//由系统标准输入设备构造BufferedReader对象
System.out.println("Client:"+in.readLine());
//在标准输出上打印从客户端读入的字符串
line=br.readLine();
//从标准输入读入一字符串
//4、获取输出流，响应客户端的请求
while(!line.equals("end")){
//如果该字符串为"bye"，则停止循环
writer.println(line);
//向客户端输出该字符串
writer.flush();
//刷新输出流，使Client马上收到该字符串
System.out.println("Server:"+line);
//在系统标准输出上打印读入的字符串
System.out.println("Client:"+in.readLine());
//从Client读入一字符串，并打印到标准输出上
line=br.readLine();
//从系统标准输入读入一字符串
}//继续循环
//5、关闭资源
writer.close();//关闭Socket输出流
in.close();//关闭Socket输入流
socket.close();//关闭Socket
server.close();//关闭ServerSocket
}catch(Exceptione){//出错，打印出错信息
System.out.println("Error."+e);
}
}
}
4. JAVA 聊天室服务器端和客户端完整代码
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.*;
import java.util.*;
import java.io.*;
public class Server extends JFrame
{
JMenuBar mb = new JMenuBar();
JMenu m1 = new JMenu("文件");
JMenu m2 = new JMenu("帮助");
JMenuItem mi1 = new JMenuItem("连接");
JMenuItem mi2 = new JMenuItem("退出");
JLabel lab1 = new JLabel("用户在线列表");
JLabel lab2 = new JLabel("消息：");
JTextArea ta = new JTextArea(9,30);
java.awt.List list = new java.awt.List(9);
JTextField tf = new JTextField(24);
JButton b = new JButton("发送");
JScrollPane sp = new JScrollPane();
JPanel p1 = new JPanel();
JPanel p2 = new JPanel();
JPanel p3 = new JPanel();
ServerSocket serverSocket;
Socket socket;
ArrayList array = new ArrayList();
int connect;
public Server()
{
super("聊天服务器");
setJMenuBar(mb);
mb.add(m1);
mb.add(m2);
m1.add(mi1);
m1.addSeparator();
m1.add(mi2);
sp.getViewport().add(ta);
p1.setLayout(new BorderLayout());
p3.add(lab1);
p1.add(p3,BorderLayout.NORTH);
p1.add(list,BorderLayout.SOUTH);
p2.add(lab2);
p2.add(tf);
p2.add(b);
getContentPane().add(sp,BorderLayout.NORTH);
getContentPane().add(p1,BorderLayout.CENTER);
getContentPane().add(p2,BorderLayout.SOUTH);
pack();
//服务器端界面居中显示
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frameSize = this.getSize();
if(frameSize.width > screenSize.width)
{
frameSize.width = screenSize.width;
}
if(frameSize.height > screenSize.height)
{
frameSize.height = screenSize.height;
}
setLocation((screenSize.width - frameSize.width)/2,
(screenSize.height - frameSize.height)/2);
setSize(400,430);
setVisible(true);
setResizable(false);
mi1.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
if(serverSocket == null)
{
try
{
serverSocket = new ServerSocket(7000);
ta.append("系统提示："+" 聊天服务器"
+" 正在启动......\n");
}
catch(IOException ex)
{
ta.append("系统提示："+" 聊天服务器"
+" 启动失败！\n");
}
}
else
{
ta.append("系统消息："+" 聊天服务器"
+" 已经启动......\n");
}
//启动监听客户端连接线程
Thread t = new Watch();
t.start();
}
});
mi2.addActionListener(new ServerListener());
b.addActionListener(new ServerListener());
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
closeAll();
System.exit(0);
}
});
}
class Watch extends Thread
{
public void run()
{
while(true)
{
if(array.size() <= 10)
{
try
{
socket = serverSocket.accept();
}
catch(IOException ex)
{
ta.append("系统消息： "+ex+"\n");
}
//创建客户端线程，一个线程对应一个客户端
Client c = new Client(socket);
array.add(c);
c.start();
}
else
{
ta.append("系统消息："+" 聊天服务器"
+" 已经超过最大连接数，请待会连接！\n");
}
}
}
}
class Client extends Thread
{
String name;
String ip;
String ipAddress;
Socket socket;
BufferedReader br;
PrintStream ps;
public Client(Socket s)
{
try
{
socket = s;
br = new BufferedReader(new InputStreamReader(s.getInputStream()));
ps = new PrintStream(s.getOutputStream());
}
catch (IOException ex)
{
ta.append("系统消息： "+ex+"\n");
}
}
public void run()
{
String info;
try
{
while(true)
{
info = br.readLine();
if(info == null)
break;
StringTokenizer st = new StringTokenizer(info, ":");
String keyword = st.nextToken();
//处理客户端传来的信息
if (keyword.equals("CONNECT"))
{
name = st.nextToken();
ip = st.nextToken();
ipAddress = ip.substring(ip.indexOf("/")+1);
ta.append("系统消息： " + name + "/"
+ ipAddress +" 已经连接\n");
list.add(name + " " + ip
+" 已经登录");
notifyChatRoom();
}
else if (keyword.equals("MSG"))
{
String broadcast = st.nextToken();
StringBuffer message = new StringBuffer("MSG:" +broadcast);
message.append(st.nextToken("\0"));
if (broadcast.equals("BROAD"))
{
5. axis2 wsdl2java 生成服务端代码怎么去实现
wsdl通常是由接口提供商生成的,也就是说服务端代码在提供商那。 自己通过wsdl2java命令可生成服务端与客户端的代码,但是服务端中的代码只包含接口定义,没有代码实现.测试的时候可以自己实现,只需要保证数据能正确传输就行了。
6. 关于java，soap服务器端的代码怎么写
<soapenv:Header/>
<soapenv:Body>
<api:getEmp>
<shopId>string</shopId>
</api:getEmp>
</soapenv:Body>
</soapenv:Envelope>
这个时SOAP协议的标准报文格式，客户端只要发送这样的报文给支持SOAP协议的webservice服务器即可成功调用web service服务
服务端：部署服务只需要自己定义服务的接口和实现类，并用@webservice注解，通过endPoint类直接发布即可
7. 急求一段JAVA代码，有关客户端和服务器的。。。
客户端
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.net.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;
/**
*
* @author Administrator
*/
public class Main extends JFrame{
JPanel jp;
JButton jb;
javax.swing.JTextField jt1;
JTextField jt2;
JTextField jt3;
JLabel jl1;
JLabel jl2;
public Main()
{
this.setBounds(150, 50, 300, 100);
jp= new JPanel(new GridLayout(3, 2));
jb=new JButton("登陆");
jt1=new JTextField();
jt2=new JTextField();
jt3=new JTextField();
jt3.setEditable(false);
jl1=new JLabel("用户名");
jl2=new JLabel("密码");
this.getContentPane().add(jp);
jp.add(jl1);
jp.add(jt1);
jp.add(jl2);
jp.add(jt2);
jp.add(jt3);
jp.add(jb);
this.setVisible(true);
jb.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String sentence;
String modifiedSentence = null;
//BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
Socket clientSocket = null;
try {
clientSocket = new Socket("127.0.0.1", 6789);
} catch (UnknownHostException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
//System.out.println("connection ok");
DataOutputStream outToServer = null;
try {
outToServer = new DataOutputStream(clientSocket.getOutputStream());
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
BufferedReader inFromServer = null;
try {
inFromServer = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
sentence=jt1.getText()+" "+jt2.getText();
try {
//System.out.println(sentence);
outToServer.writeBytes(sentence + '\n');
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
try {
modifiedSentence = inFromServer.readLine();
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
//System.out.println("FROM SERVER:"+modifiedSentence);
jt3.setText(modifiedSentence);
try {
clientSocket.close();
} catch (IOException ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
}
}
});
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws Exception
{
Main m=new Main();
}
}
服务器端
import java.io.*;
import java.net.*;
public class Main {
public static void main(String[] args) throws Exception {
String clientSentence;
String capitalizedSentence;
ServerSocket welcomeSocket=new ServerSocket(6789);
while(true){
Socket connectionSocket=welcomeSocket.accept();
BufferedReader inFromClient=new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
DataOutputStream outToClient=new DataOutputStream(connectionSocket.getOutputStream());
clientSentence=inFromClient.readLine();
//capitalizedSentence=clientSentence.toUpperCase()+'\r'+'\n';
//outToClient.writeBytes(capitalizedSentence);
if(clientSentence.equalsIgnoreCase("admin 1234"))
outToClient.writeBytes("ok"+'\n');
else
outToClient.writeBytes("error"+'\n');
}
}
}
8. java socket 我想要一段服务端的代码！最好注释完整一点的 。
ServerSocket ss = null;
Socket you = null;
String s = null;
DataOutputStream out = null;
DataInputStream in = null;
try {
ss = new ServerSocket(4333);
} catch (Exception e) {
e.printStackTrace();
}
try {
System.out.println("等到客户呼叫：");
you = ss.accept();// 堵塞状态，除非有客户呼叫
out = new DataOutputStream(you.getOutputStream());//连接建立之后才能得到输入输出流！
in = new DataInputStream(you.getInputStream());
while (true) {
s = in.readUTF();// in读取客户放入“线路”的信息，堵塞状态
System.out.println("服务器收到:" + s);
int m = Integer.parseInt(s);
out.writeUTF("你好，我是服务器:");
out.writeUTF("你的数乘以2之后是：" + 2 * m);
Thread.sleep(500);
}
} catch (Exception sss) {
System.out.println("客户已断开");
} finally {
try {
in.close();
out.close();
ss.close();
you.close();
} catch (Exception e) {
e.printStackTrace();
}
}
9. 怎样用JAVA代码实现一个REST服务端
REST是http一个接口的规范,你只要对你JAVA实现的http接口，遵循REST规范就可以了
具体规范大致是get请求表示查询数据 ，POST请求表示对数据赋值，也就是新增或者更新数据，DELETE 请求就是删除数据。
其中java实现http接口，有很多种方式，你可以用传统的servlet，或者spring框架来做，都可以
10. 用java代码实现客户端与服务端建立连接
套接字 Socket
import java.net.*;
Server:
ServerSocket server=new ServerSocket(port);//port是端口
Socket socket=server.accept();
//等待客户机的连接请求，若连接，则创建一套接字，并将返回。
Client:
Socket socket=new Socket("host",port);//host主机名（本机：127.0.0.1）