java写http服务器需要写出post方式请求和get方式的示例代码

以下是Java写HTTP服务器的示例代码，包括POST和GET请求：

POST请求示例代码：

import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.InetSocketAddress; import java.util.HashMap; import java.util.Map; import com.sun.net.httpserver.HttpExchange; import com.sun.net.httpserver.HttpHandler; import com.sun.net.httpserver.HttpServer;

public class HttpServerDemo {

public static void main(String[] args) throws Exception {
    HttpServer server = HttpServer.create(new InetSocketAddress(8000), 0);
    server.createContext("/", new MyHandler());
    server.setExecutor(null);
    server.start();
}

static class MyHandler implements HttpHandler {
    @Override
    public void handle(HttpExchange exchange) throws IOException {
        String requestMethod = exchange.getRequestMethod();
        if ("POST".equals(requestMethod)) {
            handlePostRequest(exchange);
        } else {
            handleGetRequest(exchange);
        }
    }

    private void handlePostRequest(HttpExchange exchange) throws IOException {
        InputStream is = exchange.getRequestBody();
        byte[] buffer = new byte[1024];
        int read = is.read(buffer);
        String requestBody = new String(buffer, 0, read);
        System.out.println("POST请求的请求体：" + requestBody);
        String response = "POST请求成功";
        exchange.sendResponseHeaders(200, response.getBytes().length);
        OutputStream os = exchange.getResponseBody();
        os.write(response.getBytes());
        os.flush();
        os.close();
    }

    private void handleGetRequest(HttpExchange exchange) throws IOException {
        String query = exchange.getRequestURI().getQuery();
        Map<String, String> parameters = new HashMap<String, String>();
        if (query != null) {
            String[] pairs = query.split("&");
            for (String pair : pairs) {
                String[] param = pair.split("=");
                String key = param[0];
                String value = param[1];
                parameters.put(key, value);
            }
        }
        String response = "GET请求成功";
        exchange.sendResponseHeaders(200, response.getBytes().length);
        OutputStream os = exchange.getResponseBody();
        os.write(response.getBytes());
        os.flush();
        os.close();
    }
}

}

GET请求示例代码：

import java.io.IOException; import java.io.OutputStream; import java.net.InetSocketAddress; import java.util.HashMap; import java.util.Map; import com.sun.net.httpserver.HttpExchange; import com.sun.net.httpserver.HttpHandler; import com.sun.net.httpserver.HttpServer;

public class HttpServerDemo {

public static void main(String[] args) throws Exception {
    HttpServer server = HttpServer.create(new InetSocketAddress(8000), 0);
    server.createContext("/", new MyHandler());
    server.setExecutor(null);
    server.start();
}

static class MyHandler implements HttpHandler {
    @Override
    public void handle(HttpExchange exchange) throws IOException {
        String requestMethod = exchange.getRequestMethod();
        if ("POST".equals(requestMethod)) {
            handlePostRequest(exchange);
        } else {
            handleGetRequest(exchange);
        }
    }

    private void handleGetRequest(HttpExchange exchange) throws IOException {
        String query = exchange.getRequestURI().getQuery();
        Map<String, String> parameters = new HashMap<String, String>();
        if (query != null) {
            String[] pairs = query.split("&");
            for (String pair : pairs) {
                String[] param = pair.split("=");
                String key = param[0];
                String value = param[1];
                parameters.put(key, value);
            }
        }
        String response = "GET请求成功";
        exchange.sendResponseHeaders(200, response.getBytes().length);
        OutputStream os = exchange.getResponseBody();
        os.write(response.getBytes());
        os.flush();
        os.close();
    }

    private void handlePostRequest(HttpExchange exchange) throws IOException {
        String response = "POST请求成功";
        exchange.sendResponseHeaders(200, response.getBytes().length);
        OutputStream os = exchange.getResponseBody();
        os.write(response.getBytes());
        os.flush();
        os.close();
    }
}