java get request

// open a connection, the request method is "GET" by default URL url = new URL("http://example.com"); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); connection.setRequestProperty("Content-Type", "application/json"); // you can use one of these methods to get the results connection.connect(); connection.getResponseCode(); connection.getInputStream(); connection.getOutputStream(); // close the connection connection.disconnect();

http java.net post

//Exemple :
package com.zetcode;

import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.HashMap;

public class HttpClientPost {

    public static void main(String[] args) throws IOException, InterruptedException {

        var values = new HashMap<String, String>() {{
            put("name", "John Doe");
            put ("occupation", "gardener");
        }};

        var objectMapper = new ObjectMapper();
        String requestBody = objectMapper
                .writeValueAsString(values);

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create("https://httpbin.org/post"))
                .POST(HttpRequest.BodyPublishers.ofString(requestBody))
                .build();

        HttpResponse<String> response = client.send(request,
                HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}

Posted by: Guest on November-22-2020

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