文章目录
- 简介
- 下载源码/Github地址
- 效果图
- 服务端
- 客户端（移动端）
简介
服务端基于Java Socket实现，代码开源见Github，其原理也很简单，A点击幸运数字发起请求与服务器建立Socket连接，B如果点击了相同的幸运数字，那么这两个人就算匹配成功，双方就可以聊天！都是通过服务器做转发来实现！
动动小手留个赞！
下载源码/Github地址
CSDN下载：https://download.csdn.net/download/qq_40881680/12687184
Github：https://github.com/ThirdGoddess/LuckyChat
效果图
先来看一下效果图！
服务端
Server类：这个类的作用是负责与客户端建立连接、匹配、为用户分配ID等主要作用
class Server {
private ServerSocket serverSocket = null;
static Map<String, UserBean> sockets = Collections.synchronizedMap(new HashMap<>());
public void startServer() {
System.out.println("服务准备启动");
try {
serverSocket = new ServerSocket(8892);
while (true) {
System.out.println("等待客户端连接");
Socket socket = serverSocket.accept();
//此时连接需要用户发过来他的基本信息
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String content = bufferedReader.readLine();
UserBean userBean = new Gson().fromJson(content, UserBean.class);
String userId = getUserId();
userBean.setId(userId);
userBean.setSocket(socket);
sockets.put(userId, userBean);
System.out.println(userBean.toString() + " 当前在线数量：" + sockets.size());
//寻找同一个幸运数字的人
for (Map.Entry<String, UserBean> entry : Server.sockets.entrySet()) {
//筛选条件：同一个幸运数字 并且 没有匹配过的人 并且 不是自己
if (userBean.getNumber() == entry.getValue().getNumber() && !entry.getValue().isMatching() && !userBean.getId().equals(entry.getValue().getId())) {
//匹配成功
//对方信息
UserBean value = entry.getValue();
//将双方匹配状态都改为true
changeStatus(userBean.getId());
changeStatus(value.getId());
UserMessageBean userMessageBean1 = new UserMessageBean(value.getId(), value.getNumber(), value.getName(), value.getFace());
UserMessageBean userMessageBean2 = new UserMessageBean(userBean.getId(), userBean.getNumber(), userBean.getName(), userBean.getFace());
//汇报双方id
PrintStream printStream1 = new PrintStream(socket.getOutputStream());
printStream1.println(new Gson().toJson(userMessageBean1));
PrintStream printStream2 = new PrintStream(value.getSocket().getOutputStream());
printStream2.println(new Gson().toJson(userMessageBean2));
//匹配成功
System.out.println("匹配成功");
break;
}
}
System.out.println("为用户创建消息收发流");
//为用户创建消息收发流
new Thread(new ServerThread(socket)).start();
}
} catch (
IOException e) {
e.printStackTrace();
System.out.println("服务异常");
}
}
private void changeStatus(String id) {
UserBean userBean = sockets.get(id);
userBean.setMatching(true);
sockets.put(id, userBean);
}
private String getMd5(String text) {
char[] hexDigits = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
try {
byte[] btInput = text.getBytes();
// 获得MD5摘要算法的 MessageDigest 对象
MessageDigest mdInst = MessageDigest.getInstance("MD5");
// 使用指定的字节更新摘要
mdInst.update(btInput);
// 获得密文
byte[] md = mdInst.digest();
// 把密文转换成十六进制的字符串形式
int j = md.length;
char[] str = new char[j * 2];
int k = 0;
for (byte byte0 : md) {
str[k++] = hexDigits[byte0 >>> 4 & 0xf];
str[k++] = hexDigits[byte0 & 0xf];
}
return new String(str);
} catch (Exception e) {
return null;
}
}
private int flag = 100;
private String getUserId() {
flag++;
if (flag == 999) {
flag = 100;
}
String randomStr = ((int) (Math.random() * 999999)) + "";
return getMd5(System.currentTimeMillis() + randomStr) + flag;
}
}
ServerThread类：每一个用户都有着自己的线程，当收到这个消息，就会转发到对应用户的Socket，达成消息转发！
public class ServerThread implements Runnable {
private BufferedReader bufferedReader;
private Socket socket;
public ServerThread(Socket socket) {
this.socket = socket;
try {
bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
} catch (IOException e) {
e.printStackTrace();
}
}
private String userId = null;
@Override
public void run() {
userId = getUserId();
String content;
while (null != (content = readFromClient())) {
System.out.println("对方发来消息:" + content);
//向指定用户发送消息
try {
ContentBean contentBean = new Gson().fromJson(content, ContentBean.class);
UserBean userBean = Server.sockets.get(contentBean.getToId());
Socket socket = userBean.getSocket();
MessageBean messageBean = new MessageBean(2, contentBean.getFaceId(), contentBean.getName(), contentBean.getContent());
PrintStream printStream = new PrintStream(socket.getOutputStream());
printStream.println(new Gson().toJson(messageBean));
System.out.println("转发成功");
} catch (Exception e) {
e.printStackTrace();
}
}
}
private String readFromClient() {
try {
String s = bufferedReader.readLine();
return s;
} catch (Throwable e) {
e.printStackTrace();
Server.sockets.remove(userId);
}
return null;
}
private String getMd5(String text) {
char[] hexDigits = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
try {
byte[] btInput = text.getBytes();
// 获得MD5摘要算法的 MessageDigest 对象
MessageDigest mdInst = MessageDigest.getInstance("MD5");
// 使用指定的字节更新摘要
mdInst.update(btInput);
// 获得密文
byte[] md = mdInst.digest();
// 把密文转换成十六进制的字符串形式
int j = md.length;
char[] str = new char[j * 2];
int k = 0;
for (byte byte0 : md) {
str[k++] = hexDigits[byte0 >>> 4 & 0xf];
str[k++] = hexDigits[byte0 & 0xf];
}
return new String(str);
} catch (Exception e) {
return null;
}
}
private int flag = 100;
private String getUserId() {
flag++;
if (flag == 999) {
flag = 100;
}
String randomStr = ((int) (Math.random() * 999999)) + "";
return getMd5(System.currentTimeMillis() + randomStr) + flag;
}
class ContentBean {
private String content;
private String name;
private int faceId;
private String toId;
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getFaceId() {
return faceId;
}
public void setFaceId(int faceId) {
this.faceId = faceId;
}
public String getToId() {
return toId;
}
public void setToId(String toId) {
this.toId = toId;
}
}
}
最后还剩下三个Bean类，分别是：消息转发的内容、用户的基本信息、用户信息交互类
消息转发的内容（MessageBean）
public class MessageBean {
private int type;
private int face;
private String name;
private String message;
public MessageBean(int type, int face, String name, String message) {
this.type = type;
this.face = face;
this.name = name;
this.message = message;
}
public int getType() {
return type;
}
public void setType(int type) {
this.type = type;
}
public int getFace() {
return face;
}
public void setFace(int face) {
this.face = face;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
用户的基本信息（UserBean）
public class UserBean {
private String id;
private Socket socket;
private int number;
private String name;
private int face;
private boolean isMatching;
public UserBean(String id, Socket socket, int number, String name, int face) {
this.id = id;
this.socket = socket;
this.number = number;
this.name = name;
this.face = face;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Socket getSocket() {
return socket;
}
public void setSocket(Socket socket) {
this.socket = socket;
}
public int getNumber() {
return number;
}
public void setNumber(int number) {
this.number = number;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getFace() {
return face;
}
public void setFace(int face) {
this.face = face;
}
public boolean isMatching() {
return isMatching;
}
public void setMatching(boolean matching) {
isMatching = matching;
}
@Override
public String toString() {
return "UserBean{" +
"id='" + id + '\'' +
", socket=" + socket +
", number=" + number +
", name='" + name + '\'' +
", face=" + face +
'}';
}
}
用户信息交互类（UserMessageBean）
public class UserMessageBean {
private String userId;
private int number;
private String name;
private int face;
public UserMessageBean(String userId, int number, String name, int face) {
this.userId = userId;
this.number = number;
this.name = name;
this.face = face;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public int getNumber() {
return number;
}
public void setNumber(int number) {
this.number = number;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getFace() {
return face;
}
public void setFace(int face) {
this.face = face;
}
}
结构就是这样的(我可能要加东西，所以就用了SpringBoot)：
客户端（移动端）
因为这一切涉及到耗时操作，所以均在子线程中完成，然后与主线程通讯完成更新UI操作，列出主要代码，完整版已提交Github
public class Client {
private int number;
private int face;
private String name;
private Context context;
public static Socket socket = null;
private static OtherPartyBean otherPartyBean = null;
//加载框变量
private ProgressDialog progressDialog;
public Client(Context context, int number, int face, String name) {
this.context = context;
this.number = number;
this.face = face;
this.name = name;
}
public void start() {
//弹出加载框
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
showProgressDialog("正在为你匹配");
}
});
new Thread(new Runnable() {
@Override
public void run() {
try {
socket = new Socket("bytedemo.com", 8892);
//向服务器上报基本信息
PrintStream printStream = new PrintStream(socket.getOutputStream());
printStream.println(new Gson().toJson(new UserBean(number, name, face)));
printStream.flush();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
final String otherPartyStr = bufferedReader.readLine();
otherPartyBean = new Gson().fromJson(otherPartyStr, OtherPartyBean.class);
//对方信息
//Switch to main thread
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
progressDialog.dismiss();
Toast.makeText(context, "匹配成功", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(context, MessageActivity.class);
intent.putExtra("otherParty", otherPartyStr);
context.startActivity(intent);
}
});
//开启接收消息线程
new Thread(new ClientReceive(bufferedReader)).start();
} catch (IOException e) {
e.printStackTrace();
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
Toast.makeText(context, "与服务器连接失败", Toast.LENGTH_SHORT).show();
}
});
}
}
}).start();
}
private void showProgressDialog(String text) {
if (progressDialog == null) {
progressDialog = new ProgressDialog(context);
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
}
progressDialog.setMessage(text);//设置内容
progressDialog.setCancelable(false);//点击屏幕和按返回键都不能取消加载框
progressDialog.show();
//设置超时自动消失
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
//取消加载框
if (dismissProgressDialog()) {
//超时处理
Toast.makeText(context, "匹配失败", Toast.LENGTH_SHORT).show();
}
}
}, 60000);//超时时间60秒
}
public Boolean dismissProgressDialog() {
if (progressDialog != null) {
if (progressDialog.isShowing()) {
progressDialog.dismiss();
return true;//取消成功
}
}
return false;//已经取消过了，不需要取消
}
public static void sendMessage(final String content) {
new Thread(new Runnable() {
@Override
public void run() {
try {
if (null != socket && null != otherPartyBean) {
PrintStream printStream = new PrintStream(socket.getOutputStream());
printStream.println(new Gson().toJson(new SendMessageBean(content, DemoPublic.name, DemoPublic.faceId, otherPartyBean.getUserId())));
printStream.flush();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}).start();
}
