实现功能
多好友间正常聊天，登录退出提示**
如图
此处涉及到之前的容器
点击跳转
只写了一部分以后再更容器
关闭流工具类
package 网络编程_手写聊天室_群聊过渡板;
public class MultiClient {
public static void main(String[] args) throws UnknownHostException, IOException {
BufferedReader str=new BufferedReader(new InputStreamReader(System.in));//获取用户名
System.out.println("请输入用户名: ");
String name=str.readLine();
Socket client = new Socket("localhost",8888);
new Thread(new Sent(client,name)).start();
new Thread(new Receive(client)).start();
}
}
客户端接收类
package 网络编程_手写聊天室_群聊过渡板;
public class Receive implements Runnable{
private Socket client;
private boolean isRunning;
private DataInputStream in;
public Receive(Socket client) {
this.client=client;
try {
in=new DataInputStream(client.getInputStream());
} catch (IOException e) {
System.out.println("接收时出错！");
release();
}
}
@Override
public void run() {
isRunning =true;
while(isRunning) {
String str="";
try {
str = in.readUTF();
} catch (IOException e) {
System.out.println("读取时出错");
}
if(str!=null) {
System.out.println(str);
}
}
this.release();
}
public void release() {
CloseUtlis utlis =new CloseUtlis();
utlis.close(in);
isRunning=false;
}
}
客户端发送类
package 网络编程_手写聊天室_群聊过渡板;
public class Sent implements Runnable{
private Socket client;
private BufferedReader console;
private DataOutputStream out;
private boolean isRunning;
public Sent(Socket client,String name) {
this.client=client;
console=new BufferedReader(new InputStreamReader(System.in));
try {
out =new DataOutputStream(client.getOutputStream());
sent(name);//将名称发送到服务器
} catch (IOException e) {
System.out.println("发送数据时出错");
}
}
@Override
public void run() {
isRunning =true;
while(isRunning) {
String str="";
try {
str = console.readLine();
} catch (IOException e) {
System.out.println("读取时出错");
release();
}
if(str!=null) {
sent(str);
}
}
release();
}
public void sent(String mess) {
try {
out.writeUTF(mess);
out.flush();
} catch (IOException e) {
System.out.println("发送时失败！");
release();
}
}
public void release() {
CloseUtlis utlis =new CloseUtlis();
utlis.close(console,out);
isRunning=false;
}
}
客户端
package 网络编程_手写聊天室_群聊过渡板;
public class MultiClient {
public static void main(String[] args) throws UnknownHostException, IOException {
BufferedReader str=new BufferedReader(new InputStreamReader(System.in));//获取用户名
System.out.println("请输入用户名: ");
String name=str.readLine();
Socket client = new Socket("localhost",8888);
new Thread(new Sent(client,name)).start();
new Thread(new Receive(client)).start();
}
}
服务器
package 网络编程_手写聊天室_群聊过渡板;
public class MultiServer {
private static CopyOnWriteArrayList<channel> all =new CopyOnWriteArrayList<MultiServer.channel>();//channel类型的容器
public static void main(String[] args) throws IOException {
System.out.println("服务器开始工作");
ServerSocket server=new ServerSocket(8888);
boolean isRunning =true;
while(isRunning) {
Socket client = server.accept();
channel c=new channel(client);
all.add(c);//管理每一个成员
new Thread(c).start();
}
}
static class channel implements Runnable{//与服务器连接的客户端
private String name;
private Socket client;
private DataInputStream in;
private DataOutputStream out;
private int port;
private boolean iSsys;//是否为官方消息
private boolean isRunning;
channel(Socket client) throws IOException{
this.client=client;
out =new DataOutputStream(new BufferedOutputStream(client.getOutputStream()));
in =new DataInputStream(client.getInputStream());
String name=receive();
this.name=name;
sent("欢迎来到聊天室");
sentothers(name+"加入了聊天室", true);
}
@Override
public void run() {
try {
System.out.println("建立了一个连接");
while(true) {
String mes=receive();//输入
sentothers(mes,false);//向所有用户输出
}
} catch (IOException e) {
System.out.println("多线程中出错");
}
}
public String receive() throws IOException {
String mes="";
mes=in.readUTF();
return mes;
}
public void sentothers(String mes,boolean iSsys) throws IOException {
for(channel other:all) {
if(other==this) {
continue;
}
if(!iSsys) {
other.sent(this.name+"对全体成员说: "+mes);
}else {
other.sent(mes);
}
}
}
public void sent(String mes) throws IOException {
out.writeUTF(mes);
out.flush();
}
public void release() {//释放资源并退出聊天室
isRunning=false;
CloseUtlis utlis =new CloseUtlis();
utlis.close(in,client);
all.remove(this);
try {
sentothers(this.name+" 离开了群聊",true );
} catch (IOException e) {
System.out.println("释放时出错");
}
}
}
}
效果
