Understand the role of SimpleHttpServer in Java class libraries

SimpleHttpServer is a class in the Java class library that provides a simple way to create and manage an HTTP server. This class can be used in Java SE 6 and later versions. The role of SimpleHttpServer is to enable Java developers to quickly create a simple HTTP server in their applications to process HTTP requests and send HTTP responses to clients. It provides a lightweight HTTP server implementation without the need to introduce complex frameworks or dependencies. The following is an example of Java code for creating an HTTP server using SimpleHttpServer: import com.sun.net.httpserver.HttpServer; import com.sun.net.httpserver.HttpExchange; import com.sun.net.httpserver.HttpHandler; import java.io.IOException; import java.io.OutputStream; public class SimpleHttpServerExample { public static void main(String[] args) throws IOException { //Create an HTTP server and bind to the specified port HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0); //Create a handler to handle HTTP requests server.createContext("/", new MyHandler()); //Start Server server.start(); System.out.println("Server started on port 8080"); } static class MyHandler implements HttpHandler { @Override public void handle(HttpExchange exchange) throws IOException { //Process HTTP requests and send responses String response = "Hello, World!"; exchange.sendResponseHeaders(200, response.length()); OutputStream outputStream = exchange.getResponseBody(); outputStream.write(response.getBytes()); outputStream.close(); } } } In the above example, we created an HTTP server and specified the handler for handling HTTP requests through the 'server. createContext()' method. Here we have created an internal class called 'MyHandler' that implements the 'HttpHandler' interface for handling HTTP requests. In the 'handle()' method, we set the response message to 'Hello, World!', then send the response header through the 'exchange. sendResponseHeaders()' method, and finally write the response content to the output stream and close it. When we run this example code, it will create an HTTP server running on the local 8080 port. When we access the` http://localhost:8080 `We will see 'Hello, World!' as a response. In summary, SimpleHttpServer is a class in the Java class library that provides a simple way to create and manage an HTTP server. Through it, we can create a lightweight HTTP server in Java applications and process HTTP requests and send HTTP responses.