When using Apache HttpClient with Spring Boot’s RestTemplate, you can configure the RestTemplate to use the HttpClient as the underlying HTTP client. Here’s an example of how to configure RestTemplate…
In this example, we will use basic HttpURLConnection Object to post json object. Java HttpURLConnection Post Request: import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; public class PostRequestExample…
To send a POST request with JSON payload using Apache HttpClient, you can follow the steps below: Apache HttpClient Post Example code: import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost;…
To use Apache HttpClient with Jackson’s Object Mapper for handling JSON serialization and deserialization, you can follow these steps: <dependencies> <!-- Apache HttpClient --> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.13</version> </dependency> <!--…
In Java, you can convert a millisecond timestamp to a Date object with respect to a given timezone using the SimpleDateFormat and TimeZone classes. Example code: import java.text.SimpleDateFormat; import java.util.Date;…
Deadlock is a situation where two or more threads are blocked waiting for each other to release the locks they hold, resulting in a deadlock state where none of the…
In Java, Semaphore is a class in the concurrency framework that provides a way to control access to a shared resource. It works by maintaining a count of available permits,…
The Externalizable interface in Java is a marker interface that allows for custom serialization of an object. Classes that implement Externalizable must provide a public no-arg constructor and implement the…
The ScheduledThreadPoolExecutor is a class that extends ThreadPoolExecutor and provides functionality for scheduling tasks to run after a specified delay or at a fixed rate. It is useful for scheduling…
In this tutorial, we will see concerting String[] to InputStream in the following ways:
