App
Create a web Spring application.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
POST
Send a post request to /post_page API entry point.
/**
* Spring Boot is the most popular way to start Spring projects.
* Spring Boot is built on top of the spring framework.
*
* Start by creating a new Spring Web project ...
* by opening intializer on start.spring.io
*/
package com.minte9.post_request;
import java.net.URI;
import java.net.URLEncoder;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@RestController
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
@GetMapping("/")
public String makeRequest() throws Exception {
String url = "http://localhost:8080/post_page";
String a = "Hello";
String b = "World";
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create(url))
.header("Content-Type", "application/x-www-form-urlencoded")
.POST(HttpRequest.BodyPublishers.ofString(
"a=" + URLEncoder.encode(a, "UTF-8") + "&" +
"b=" + URLEncoder.encode(b, "UTF-8")))
.build();
HttpResponse<String> response = client.send(
request, HttpResponse.BodyHandlers.ofString()
);
String out = ""
+ "Response code: " + response.statusCode() + " / "
+ "POST vars: " + response.body();
return out;
// Response code: 200 / POST vars: a = Hello, b = World
}
@PostMapping("/post_page")
public String handleDemoRequest(
@RequestParam("a") String a,
@RequestParam("b") String b) {
String out = "a = " + a + ", b = " + b;
return out;
}
}
Last update: 335 days ago
