使用 Jersey 调用 Restful 服务

netkiller old

发布于 2018-03-05 17:26:51

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发布于 2018-03-05 17:26:51

文章被收录于专栏：NetkillerNetkiller

第 20 章 Jersey - RESTful Web Services in Java.

20.1. Client
- 20.1.1. Maven 版本
- 20.1.2. GET 操作
- 20.1.3. GET + Auth 用户认证

https://jersey.java.net/

20.1. Client

20.1.1. Maven 版本

1.x

			<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-client -->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-client</artifactId>
    <version>1.19.2</version>
</dependency>

2.x 版本

			<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-client</artifactId>
    <version>2.23.2</version>
</dependency>

两个版本差异非常大，本文的例子使用2.23.2

20.1.2. GET 操作

			package cn.netkiller.jersey;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Invocation;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.glassfish.jersey.client.ClientConfig;

public class JerseyClientGet {

	public static void main(String[] args) {

		ClientConfig clientConfig = new ClientConfig();

		Client client = ClientBuilder.newClient(clientConfig);
		WebTarget webTarget = client.target("http://inf.netkiller.cn").path("/list/json/2.html");

		Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON);
		Response response = invocationBuilder.get();

		System.out.println(response.getStatus());
		System.out.println(response.getStatusInfo());

		if (response.getStatus() == 200) {

			String output = response.readEntity(String.class);
			System.out.println(output);

		}

	}
}

20.1.3. GET + Auth 用户认证

			package cn.netkiller.jersey;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Invocation;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;

public class JerseyClientGetAuth {

	public static void main(String[] args) {

		ClientConfig clientConfig = new ClientConfig();

		HttpAuthenticationFeature feature = HttpAuthenticationFeature.basic("neo", "chen");
		clientConfig.register(feature);

		Client client = ClientBuilder.newClient(clientConfig);
		WebTarget webTarget = client.target("http://api.netkiller.cn/v1/withdraw/ping.json").path("");

		Invocation.Builder invocationBuilder = webTarget.request(MediaType.APPLICATION_JSON);
		Response response = invocationBuilder.get();

		System.out.println(response.getStatus());
		System.out.println(response.getStatusInfo());

		if (response.getStatus() == 200) {

			String output = response.readEntity(String.class);
			System.out.println(output);

		}

	}
}

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原始发表：2016-09-10，如有侵权请联系 cloudcommunity@tencent.com 删除

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