Java HTTP Client

Introduction to Java HttpClient

With the release of Java 11, the HttpClient class was introduced as a standard way to perform HTTP requests in Java. This modern API provides a powerful and flexible way to send HTTP requests and process responses. In this guide, we'll explore how to use Java's HttpClient for making API calls and handling responses.

Creating a Simple GET Request

One of the most basic operations you can perform with HttpClient is making a GET request. Below is an example of how to create a simple GET request using HttpClient:

Handling Responses

After sending an HTTP request, you need to handle the response. In the above example, HttpResponse.BodyHandlers.ofString() converts the response body into a String. You can also handle responses in other formats, such as JSON or binary data.

Making POST Requests

HttpClient also supports sending data to a server using POST requests. Here's how you can perform a POST request:

Configuring Timeouts and Redirects

Java's HttpClient provides options to configure timeouts and follow redirects. You can customize these settings using the HttpClient.Builder class:

Conclusion

The HttpClient introduced in Java 11 offers a modern and efficient way to perform HTTP operations in Java. It supports both synchronous and asynchronous requests, making it versatile for various use cases. Whether you're fetching data or submitting forms, HttpClient provides the necessary tools to handle HTTP communication.