<dependency> <groupId>commons-httpclient</groupId> <artifactId>commons-httpclient</artifactId> <version>3.1</version> </dependency> import org.apache.commons.httpclient.HttpClient; HttpClient httpClient = new HttpClient(); import org.apache.commons.httpclient.methods.GetMethod; GetMethod getMethod = new GetMethod("http://www.example.com/api/getData"); getMethod.setRequestHeader("Content-Type", "application/json"); getMethod.addParameter("userId", "12345"); int statusCode = httpClient.executeMethod(getMethod); String response = getMethod.getResponseBodyAsString(); getMethod.releaseConnection();