spring-boot2+ integrate with okhttp3

add below to pom.xml

<dependency>
    <groupId>com.squareup.okhttp3</groupId>
    <artifactId>okhttp</artifactId>
    <version>3.11.0</version>
</dependency>

java code

import java.util.concurrent.TimeUnit;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import okhttp3.OkHttpClient;

@Configuration
public class OkHttpConfig {
	// strong recommend to use singleton
	@Bean
	public OkHttpClient okHttpClient() {
		OkHttpClient okHttpClient = new OkHttpClient.Builder()
				.connectTimeout(2000, TimeUnit.MILLISECONDS)
				.readTimeout(3000, TimeUnit.MILLISECONDS)
				.writeTimeout(3000, TimeUnit.MILLISECONDS)
				.build();
		return okHttpClient;
	}
}

how to use

@Autowired
private OkHttpClient okHttpClient;

@Test
public void invokeRemoteAPI() throws Exception {
	String url = "http://host:port/api";
	Request request = new Request.Builder().url(url).build();
	Response response = okHttpClient.newCall(request).execute();
	String result = response.body().string();
	System.out.println(result);
}