The best practice of Apache HttpClient Fluent API in the Java class library
Apache HTTPClient Fluent apIn this article, we will discuss the best practice using Apache HttpClient Fluent API framework.
In order to send HTTP requests with Apache httpclient Fluent API, you first need to add HTTPClient Fluent API to the project.In the Maven project, the following dependencies can be added:
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>fluent-hc</artifactId>
<version>4.5.13</version>
</dependency>
In the Gradle project, you can add the following dependencies:
gradle
implementation 'org.apache.httpcomponents:fluent-hc:4.5.13'
Once the dependencies are added, you can start using Apache HTTPClient Fluent API to send HTTP requests.Here are some common practice examples:
1. Send GET request:
import org.apache.http.client.fluent.Request;
import org.apache.http.client.fluent.Response;
public class HttpClientExample {
public static void main(String[] args) {
try {
String url = "http://example.com";
Response response = Request.Get(url).execute();
String responseBody = response.returnContent().asString();
System.out.println(responseBody);
} catch (Exception e) {
e.printStackTrace();
}
}
}
2. Send post request:
import org.apache.http.client.fluent.Request;
import org.apache.http.client.fluent.Response;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
public class HttpClientExample {
public static void main(String[] args) {
try {
String url = "http://example.com";
String body = "Hello, World!";
StringEntity entity = new StringEntity(body, ContentType.APPLICATION_JSON);
Response response = Request.Post(url).body(entity).execute();
String responseBody = response.returnContent().asString();
System.out.println(responseBody);
} catch (Exception e) {
e.printStackTrace();
}
}
}
3. Set the request head and timeout time:
import org.apache.http.client.fluent.Request;
import org.apache.http.client.fluent.Response;
import org.apache.http.client.fluent.Executor;
import java.util.concurrent.TimeUnit;
public class HttpClientExample {
public static void main(String[] args) {
try {
String url = "http://example.com";
Request request = Request.Get(url)
.addHeader("User-Agent", "Mozilla/5.0")
.connectTimeout(5000)
.socketTimeout(5000);
Executor executor = Executor.newInstance();
Response response = executor.execute(request);
String responseBody = response.returnContent().asString();
System.out.println(responseBody);
} catch (Exception e) {
e.printStackTrace();
}
}
}
These examples show the best practice of using Apache HttpClient Fluent API.You can customize and expand as needed in your own project.
