RESTful WebService 入門執行個體

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/* 建立MavenProject，使用以下代碼，建立類和POM檔案。
使用命令列切換到Project根目錄，運行mvn package , mvn exec:java,即可啟動RESTful service。
在瀏覽器中輸入http://localhost:8080/myapp/myresource/，
此時會顯示內容： Got it!

---Java RESTful Web Service 實戰 */

 

 package my.restful; 2  3 import org.glassfish.grizzly.http.server.HttpServer; 4 import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory; 5 import org.glassfish.jersey.server.ResourceConfig; 6  7 import java.io.IOException; 8 import java.net.URI; 9 10 /**11  * Main class.12  *13  */14 public class Main {15     // Base URI the Grizzly HTTP server will listen on16     public static final String BASE_URI = "http://localhost:8080/myapp/";17 18     /**19      * Starts Grizzly HTTP server exposing JAX-RS resources defined in this application.20      * @return Grizzly HTTP server.21      */22     public static HttpServer startServer() {23         // create a resource config that scans for JAX-RS resources and providers24         // in my.restful package25         final ResourceConfig rc = new ResourceConfig().packages("my.restful");26 27         // create and start a new instance of grizzly http server28         // exposing the Jersey application at BASE_URI29         return GrizzlyHttpServerFactory.createHttpServer(URI.create(BASE_URI), rc);30     }31 32     /**33      * Main method.34      * @param args35      * @throws IOException36      */37     public static void main(String[] args) throws IOException {38         final HttpServer server = startServer();39         System.out.println(String.format("Jersey app started with WADL available at "40                 + "%sapplication.wadl\nHit enter to stop it...", BASE_URI));41         System.in.read();42         server.stop();43     }44 }

package my.restful;import javax.ws.rs.GET;import javax.ws.rs.Path;import javax.ws.rs.Produces;import javax.ws.rs.core.MediaType;/** * Root resource (exposed at "myresource" path) */@Path("myresource")public class MyResource {    /**     * Method handling HTTP GET requests. The returned object will be sent     * to the client as "text/plain" media type.     *     * @return String that will be returned as a text/plain response.     */    @GET    @Produces(MediaType.TEXT_PLAIN)    public String getIt() {        return "Got it!";    }}

package my.restful;import javax.ws.rs.client.Client;import javax.ws.rs.client.ClientBuilder;import javax.ws.rs.client.WebTarget;import org.glassfish.grizzly.http.server.HttpServer;import org.junit.After;import org.junit.Before;import org.junit.Test;import static org.junit.Assert.assertEquals;public class MyResourceTest {    private HttpServer server;    private WebTarget target;    @Before    public void setUp() throws Exception {        // start the server        server = Main.startServer();        // create the client        Client c = ClientBuilder.newClient();        // uncomment the following line if you want to enable        // support for JSON in the client (you also have to uncomment        // dependency on jersey-media-json module in pom.xml and Main.startServer())        // --        // c.configuration().enable(new org.glassfish.jersey.media.json.JsonJaxbFeature());        target = c.target(Main.BASE_URI);    }    @After    public void tearDown() throws Exception {        server.stop();    }    /**     * Test to see that the message "Got it!" is sent in the response.     */    @Test    public void testGetIt() {        String responseMsg = target.path("myresource").request().get(String.class);        assertEquals("Got it!", responseMsg);    }}

 1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 2          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 3  4     <modelVersion>4.0.0</modelVersion> 5  6     <groupId>my.restful</groupId> 7     <artifactId>my-first-service</artifactId> 8     <packaging>jar</packaging> 9     <version>1.0-SNAPSHOT</version>10     <name>my-first-service</name>11 12     <dependencyManagement>13         <dependencies>14             <dependency>15                 <groupId>org.glassfish.jersey</groupId>16                 <artifactId>jersey-bom</artifactId>17                 <version>${jersey.version}</version>18                 <type>pom</type>19                 <scope>import</scope>20             </dependency>21         </dependencies>22     </dependencyManagement>23 24     <dependencies>25         <dependency>26             <groupId>org.glassfish.jersey.containers</groupId>27             <artifactId>jersey-container-grizzly2-http</artifactId>28         </dependency>29         <!-- uncomment this to get JSON support:30          <dependency>31             <groupId>org.glassfish.jersey.media</groupId>32             <artifactId>jersey-media-moxy</artifactId>33         </dependency>34         -->35         <dependency>36             <groupId>junit</groupId>37             <artifactId>junit</artifactId>38             <version>4.9</version>39             <scope>test</scope>40         </dependency>41     </dependencies>42 43     <build>44         <plugins>45             <plugin>46                 <groupId>org.apache.maven.plugins</groupId>47                 <artifactId>maven-compiler-plugin</artifactId>48                 <version>2.5.1</version>49                 <inherited>true</inherited>50                 <configuration>51                     <source>1.7</source>52                     <target>1.7</target>53                 </configuration>54             </plugin>55             <plugin>56                 <groupId>org.codehaus.mojo</groupId>57                 <artifactId>exec-maven-plugin</artifactId>58                 <version>1.2.1</version>59                 <executions>60                     <execution>61                         <goals>62                             <goal>java</goal>63                         </goals>64                     </execution>65                 </executions>66                 <configuration>67                     <mainClass>my.restful.Main</mainClass>68                 </configuration>69             </plugin>70         </plugins>71     </build>72 73     <properties>74         <jersey.version>2.22.1</jersey.version>75         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>76     </properties>77 </project>

 

RESTful WebService 入門執行個體