What steps are required to establish a socket?

The steps required to establish a socket: 1. Call the constructor of the Socket class to establish the client Socket; 2. In the state of waiting for connection, monitor the network status in real time, and establish the server-side Socket; 3. Monitor the server connection; 4. Use the Socket method to create an input or output stream.

Steps required to establish socket:

1. Client Socket: First call The constructor of the Socket class takes the specified IP address or specified host name and specified port number of the server as parameters to create a Socket stream. The process of creating the Socket stream includes the process of requesting the server to establish a communication connection.

//创建Socket 客户端对象
Socket s = new Socket("127.0.0.1",6666);

2. Server-side Socket: The server-side socket does not locate the specific client socket, but is in a state of waiting for connection, monitoring the network status in real time, and waiting for the client end connection request.

//创建ServerSocket 服务器端对象。。
ServerSocket ss = new ServerSocket(6666);

3. Monitor the server connection:

s = ss.accept();

4. After establishing the communication Socket between the client and the server. You can use the Socket methods getInputStream() and getOutputStream() to create an input/output stream. In this way, after using the Socket class, network input and output are also transformed into a process using stream objects.

5. After the communication task is completed, we use the close() method of the stream object to close the input and output stream used for network communication. In we use the ## of the Socket object. #close() method to close Socket.

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