Java Coding Problems

266. Downloading a resource

As we saw in the Setting a request body and Handling response body types sections, the HTTP Client API can send and receive text and binary data (for example, images, videos, and so on).

Downloading a file relies on the following two coordinates:

• Sending a GET request
• Handling the received bytes (for example, via BodyHandlers.ofFile())

The following code downloads hibernate-core-5.4.2.Final.jar from the Maven repository in the project classpath:

HttpClient client = HttpClient.newHttpClient();HttpRequest request = HttpRequest.newBuilder()  .uri(URI.create("http://.../hibernate-core-5.4.2.Final.jar"))  .build();HttpResponse<Path> response   = client.send(request, HttpResponse.BodyHandlers.ofFile( Path.of("hibernate-core-5.4.2.Final.jar"))); ...