chapter.jersey.xml

<?xml version="1.0" encoding="UTF-8"?>
<chapter id="index"><?dbhtml dir="org/glassfish/jersey" ?>
	<title>Jersey - RESTful Web Services in Java.</title>
	<para>https://jersey.java.net/</para>
	<section id="client">
		<title>Client 2.x</title>
		<section>
			<title>Maven 版本</title>
			<para>1.x</para>
			<programlisting>
			<![CDATA[
<!-- 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>	
			]]>
			</programlisting>
			<para>2.x 版本</para>
			<programlisting>
			<![CDATA[
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>cn.netkiller</groupId>
	<artifactId>example</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>example</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<dependencies>

		<dependency>
			<groupId>org.glassfish.jersey.core</groupId>
			<artifactId>jersey-client</artifactId>
			<version>2.25.1</version>
		</dependency>

	</dependencies>
</project>
			]]>
			</programlisting>
			<para>两个版本差异非常大，本文的例子使用2.23.2</para>
		</section>	
		<section>
			<title>GET 操作</title>
			<programlisting>
			<![CDATA[
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);

		}

	}
}	
			]]>
			</programlisting>
		</section>		
		<section>
			<title>GET + Auth 用户认证</title>
			<programlisting>
			<![CDATA[
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);

		}

	}
}
			]]>
			</programlisting>
		</section>	
		
	</section>
	<section id="client1.x">
		<title>Client 1.x</title>
		<programlisting>
		<![CDATA[
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>cn.netkiller</groupId>
	<artifactId>example</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>example</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<dependencies>

		<!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-client -->
		<dependency>
			<groupId>com.sun.jersey</groupId>
			<artifactId>jersey-client</artifactId>
			<version>1.19.3</version>
		</dependency>

	</dependencies>
</project>

		]]>
		</programlisting>
		<programlisting>
		<![CDATA[
package cn.netkiller.jersey;

import javax.ws.rs.core.MediaType;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.api.client.filter.HTTPBasicAuthFilter;

public class HttpAuth1 {

	public HttpAuth1() {
		// TODO Auto-generated constructor stub
	}

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {

			ClientConfig clientConfig = new DefaultClientConfig();

			Client client = Client.create(clientConfig);
			client.addFilter(new HTTPBasicAuthFilter("user", "password"));

			WebResource webResource = client.resource("http://api.netkiller.cn/v1/config/read.json?name=cache");

			ClientResponse response = webResource.accept(MediaType.APPLICATION_JSON).type(MediaType.APPLICATION_JSON).get(ClientResponse.class);

			if (response.getStatus() != 200) {
				throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
			}

			String output = response.getEntity(String.class);

			System.out.println("Server response .... \n");
			System.out.println(output);

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

}

		]]>
		</programlisting>
		<section>
			<title>Jersey + Auth + HTTP2 + SSL</title>
			<para>我的应用场景 Jersey client -> CDN HTTP2 SSL -> api.netkiller.cn (HTTP2 SSL Auth) 下面代码100% 可运行。</para>
			<programlisting>
			<![CDATA[
package cn.netkiller.jersey;

import javax.ws.rs.core.MediaType;

import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.api.client.filter.HTTPBasicAuthFilter;

public class HttpAuth1 {

	public HttpAuth1() {
		// TODO Auto-generated constructor stub
	}

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {

			ClientConfig clientConfig = new DefaultClientConfig();
			Client client = Client.create(clientConfig);
			client.addFilter(new HTTPBasicAuthFilter("user", "password"));

			WebResource webResource = client.resource("https://api.netkiller.cn/v1/config/read.json?name=cache");

			ClientResponse response = webResource.accept(MediaType.APPLICATION_JSON).type(MediaType.APPLICATION_JSON).get(ClientResponse.class);

			if (response.getStatus() != 200) {
				throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
			}

			String output = response.getEntity(String.class);

			System.out.println("Server response .... \n");
			System.out.println(output);

		} catch (Exception e) {

			e.printStackTrace();

		}

	}

}
			]]>
			</programlisting>
			<para>如果SSL证书配置正确将会输出返回内容，如果SSL证书不正确会返回下面错误，请检查你的SSL证书</para>
			<screen>
			<![CDATA[
com.sun.jersey.api.client.ClientHandlerException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:155)
	at com.sun.jersey.api.client.filter.HTTPBasicAuthFilter.handle(HTTPBasicAuthFilter.java:105)
	at com.sun.jersey.api.client.Client.handle(Client.java:652)
	at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682)
	at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74)
	at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:509)
	at cn.netkiller.jersey.HttpAuth1.main(HttpAuth1.java:31)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
	at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
	at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
	at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
	at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509)
	at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
	at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
	at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
	at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
	at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
	at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:253)
	at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:153)
	... 6 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
	at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
	at sun.security.validator.Validator.validate(Validator.java:260)
	at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
	at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
	at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
	at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
	... 21 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
	at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
	at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
	at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
	... 27 more			
			]]>
			</screen>
		</section>
	</section>
</chapter>