java站内信源代码 java 站内信
帮我把下面Java写的站内信的代码,转化成c#的,,高手来帮帮我
using System;
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//using UserPackage
public class Message {
public static const string STATUS_NEW = "NEW";
public static const string STATUS_READED = "READED";
public static const string STATUS_DELETED = "DELETED";
public static const string STATUS_SENDED = "SENDED";
public static const string STATUS_DELETE_FOREVER = "DELETE_FOREVER";
/**
* @hibernate.id
* generator-class="native"
*/
private int id;
/**
* @hibernate.property
*/
private string title;
/**
* @hibernate.property
*/
private string content;
/**
* @hibernate.property
*/
private string sendStatus;
/**
* @hibernate.property
*/
private string receiveStatus;
/**
* update="false"表示此字段不更新
* @hibernate.property update="false"
*/
private DateTime createTime;
/**消息发送方
* @hibernate.many-to-one
*/
private User sender;
/**消息接收方
* @hibernate.many-to-one
*/
private User receiver;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public string getTitle() {
return title;
}
public void setTitle(string title) {
this.title = title;
}
public string getContent() {
return content;
}
public void setContent(string content) {
this.content = content;
}
public User getSender() {
return sender;
}
public void setSender(User sender) {
this.sender = sender;
}
public User getReceiver() {
return receiver;
}
public void setReceiver(User receiver) {
this.receiver = receiver;
}
public string getSendStatus() {
return sendStatus;
}
public void setSendStatus(string sendStatus) {
this.sendStatus = sendStatus;
}
public string getReceiveStatus() {
return receiveStatus;
}
public void setReceiveStatus(string receiveStatus) {
this.receiveStatus = receiveStatus;
}
public DateTime getCreateTime() {
return createTime;
}
public void setCreateTime(DateTime createTime) {
this.createTime = createTime;
}
}
注意第二行
java中如何根据一个网址获得该网页的源代码?
package test;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class HttpTest {
private String u;
private String encoding;
public static void main(String[] args) throws Exception {
HttpTest client = new HttpTest("", "UTF-8");
client.run();
}
public HttpTest(String u, String encoding) {
this.u = u;
this.encoding = encoding;
}
public void run() throws Exception {
URL url = new URL(u);// 根据链接(字符串格式),生成一个URL对象
HttpURLConnection urlConnection = (HttpURLConnection) url
.openConnection();// 打开URL
BufferedReader reader = new BufferedReader(new InputStreamReader(
urlConnection.getInputStream(), encoding));// 得到输入流,即获得了网页的内容
String line; // 读取输入流的数据,并显示
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
}
}
根据具体问题类型,进行步骤拆解/原因原理分析/内容拓展等。
具体步骤如下:/导致这种情况的原因主要是……
初学者请求java源代码
class Car
{
// 车辆属性
private String brand; // 品牌
private double engineDisplacement;// 排气量
private double speed;// 当前速度
private boolean status;// 启动状态
private double maxSpeed;// 最大速度
public double getSpeed () {
return this.speed;
}
public Car(String brand, double engineDisplacement, double maxSpeed) {
this.brand = brand;
this.engineDisplacement = engineDisplacement;
this.maxSpeed = maxSpeed;
// 其他属性也要有初始值,不然执行出错。
this.speed = 0;
this.status = false;
}
/** 启动 */
public void start() {
this.status = true;
printNowStatus ();
}
/** 关闭(熄火) */
public void stop() {
// 只在速度为0时关闭(貌似楼上两位没仔细看题…)
if (this.speed == 0)
{
this.status = false;
}
printNowStatus ();
}
/** 加速 */
public void speedUp() {
// 只在启动时可以加速
if (this.status)
{
this.speed = this.speed + 20;
if (this.speed this.maxSpeed)
{
this.speed = this.maxSpeed;
}
}
printNowStatus ();
}
/** 减速 */
public void slowDown() {
// 只在启动时可以减速
if (this.status)
{
this.speed = this.speed - 10;
if (this.speed 0)
{
this.speed = 0;
}
}
printNowStatus ();
}
/** 状态打印,在每次启动,加减速,关闭时调用 */
private void printNowStatus () {
System.out.println("轿车【" + this.brand + "】现在的启动状态是:" + this.status + "速度是:" + this.speed +"。");
}
}
public class TestCar
{
public static void main(String[] args)
{
Car myCar = new Car ("红旗", 2, 120);
//启动
myCar.start();
// 循环加速到120
while (myCar.getSpeed() 120)
{
myCar.speedUp();
}
//循环减速
while (myCar.getSpeed() 0)
{
myCar.slowDown();
}
//关闭
myCar.stop();
}
}
/* 直接拿文本写的,我用的电脑没装jdk,楼主自己到Java开发环境下调试,应该没什么问题… */
Java访问指定URL并获取网页源代码
1.编写useSourceViewer 类的基本框架,该类仅包括无返回值的main ()方法,该方法从参数中获取URL,通过输入缓冲和输出缓冲将该URL 原码输出。
2.编写useSourceViewer 类,代码如下:
import java.net.*;
import java.io.*;
public class useSourceViewer
{
public static void main (String[] args)
{
if (args.length 0)
{
try
{
//读入URL
URL u = new URL(args[0]);
InputStream in = u.openStream( );
// 为增加性能存储输入流
in = new BufferedInputStream(in);
// 将输入流连接到阅读器
Reader r = new InputStreamReader(in);
int c;
while ((c = r.read( )) != -1)
{
System.out.print((char) c);
}
Object o = u.getContent( );
System.out.println("I got a " + o.getClass().getName( ));
}
catch (MalformedURLException e)
{
System.err.println(args[0] + " is not a parseable URL");
}
catch (IOException e)
{
System.err.println(e);
}
} // end if
} // end main
} // end SourceViewer}
如何使用java实现两台计算机的通信 源代码
一个简单的聊天程序
参考一下;
//客户端的
import java.io.*;
import java.net.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class ChatClient {
public static void main(String[] args) {
ChatClient cc=new ChatClient();
cc.receive();
}
JTextField jtf;
JTextArea jta;
Socket s;
PrintWriter out;
BufferedReader in;
public ChatClient(){
JFrame frame=new JFrame("ChatClient");
frame.setSize(400,300);
jta=new JTextArea();
jta.setEditable(false);
jtf=new JTextField();
jtf.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
send();
}
});
frame.getContentPane().add(new JScrollPane(jta));
frame.getContentPane().add(jtf,"South");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
try {
s=new Socket("127.0.0.1",9000);
in=new BufferedReader(new InputStreamReader(s.getInputStream()));
out=new PrintWriter(s.getOutputStream());
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void receive(){
while(true){
try {
String text=in.readLine();
this.jta.append(text+"\n");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
}
}
public void send(){
String text=this.jtf.getText();
this.jtf.setText("");
out.println(text);
out.flush();
}
}
//服务器端的
import java.net.*;
import java.io.*;
import java.util.*;
public class ChatServer {
public static void main(String[] args) throws Exception {
ServerSocket ss=new ServerSocket(9000);
List list=new ArrayList();
while(true){
Socket s=ss.accept();
list.add(s);
Thread t=new ServerThread(s,list);
t.start();
}
}
}
class ServerThread extends Thread{
Socket s;
List list;
BufferedReader in;
PrintWriter out;
public ServerThread(Socket s, List list) {
this.s = s;
this.list = list;
try {
in=new BufferedReader(new InputStreamReader(s.getInputStream()));
out=new PrintWriter(s.getOutputStream());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void run(){
while(true){
try {
String str=in.readLine();
if (str==null) return;
Iterator it=list.iterator();
while(it.hasNext()){
Socket socket=(Socket)(it.next());
PrintWriter o=new PrintWriter(socket.getOutputStream());
o.println(str);
o.flush();
}
} catch (IOException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
return;
}
}
}
}
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