weblogic 10.x 上开发restful服务

之前已经学习过 利用JAX-RS快速开发RESTful 服务，当时是jboss环境，如果原封不动的迁移到weblogic 10.x 版本，会杯具的发现应用启动失败，需要做些小调整：

项目结构如下：

需要在原来的Rest Service(本文中是MyService.java)外，再包装一层，创建一个Application的子类，本例中是 MyApplication.java，代码如下：

 package yjmyzz.service;

 import java.util.HashSet;
 import java.util.Set;

 import javax.ws.rs.ApplicationPath;
 import javax.ws.rs.core.Application;

 import yjmyzz.service.rest.MyService;

 @ApplicationPath("/rest")
 public class MyApplication extends Application {

     public Set<Class<?>> getClasses() {
         Set<Class<?>> s = new HashSet<Class<?>>();
         s.add(MyService.class);

         return s;
     }
 }

MyApplication

MyService.java的内容如下：(这与在jboss环境中的代码完全相同)

 package yjmyzz.service.rest;

 import javax.ws.rs.GET;

 import javax.ws.rs.Path;

 import javax.ws.rs.Produces;

 import javax.ws.rs.core.MediaType;
 import javax.xml.bind.JAXBElement;
 import javax.xml.namespace.QName;

 @Path("/")
 public class MyService {

     final String XMLNS_NAMESPACE = "http://yjmyzz.cnblogs.com/rest/service";
     final String ROOT_NODE = "root";

     @GET
     @Path("/json/hello")
     @Produces(MediaType.APPLICATION_JSON)
     public JAXBElement<String> getHelloWorldJSON() {
         JAXBElement<String> result = new JAXBElement<String>(new QName("",
                 ROOT_NODE), String.class, sayHelloWorld());
         return result;
     }

     @GET
     @Path("/xml/hello")
     @Produces(MediaType.APPLICATION_XML)
     public JAXBElement<String> getHelloWorldXML() {
         JAXBElement<String> result = new JAXBElement<String>(new QName(
                 XMLNS_NAMESPACE, ROOT_NODE), String.class, sayHelloWorld());
         return result;
     }

     private String sayHelloWorld() {
         return "Hello JAX-RS-1";
     }

 }

MyService

还有一个关键步骤：在webapp/WEB-INF目录下创建web.xml，内容参考如下：

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd "
     version="2.5">

     <servlet>
         <servlet-name>MyService</servlet-name>
         <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
         <init-param>
             <param-name>javax.ws.rs.Application</param-name>
             <param-value>yjmyzz.service.MyApplication </param-value>
         </init-param>
     </servlet>

     <servlet-mapping>
         <servlet-name>MyService</servlet-name>
         <url-pattern>/rest/*</url-pattern>
     </servlet-mapping>

 </web-app>

web.xml

最后附上pom.xml的内容：

 <?xml version="1.0"?>

 <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/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>

     <groupId>org.jboss.as.quickstarts</groupId>
     <artifactId>helloworld-rs</artifactId>
     <version>7.1.2-SNAPSHOT</version>
     <packaging>war</packaging>
     <name>JBoss EAP Quickstart: helloworld-rs</name>
     <description>JBoss EAP Quickstart: Helloworld using JAX-RS</description>

     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <version.jboss.maven.plugin>7.4.Final</version.jboss.maven.plugin>
         <version.jboss.spec.javaee.6.0>3.0.2.Final</version.jboss.spec.javaee.6.0>
         <version.war.plugin>2.1.1</version.war.plugin>
         <maven.compiler.target>1.6</maven.compiler.target>
         <maven.compiler.source>1.6</maven.compiler.source>
     </properties>

     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>org.jboss.spec</groupId>
                 <artifactId>jboss-javaee-6.0</artifactId>
                 <version>${version.jboss.spec.javaee.6.0}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
         </dependencies>
     </dependencyManagement>

     <dependencies>
         <dependency>
             <groupId>com.sun.jersey</groupId>
             <artifactId>jersey-bundle</artifactId>
             <version>1.15</version>
         </dependency>
     </dependencies>

     <build>
         <finalName>${project.artifactId}</finalName>
         <plugins>
             <plugin>
                 <artifactId>maven-war-plugin</artifactId>
                 <version>${version.war.plugin}</version>
                 <configuration>
                     <failOnMissingWebXml>true</failOnMissingWebXml>
                 </configuration>
             </plugin>

             <plugin>
                 <groupId>org.jboss.as.plugins</groupId>
                 <artifactId>jboss-as-maven-plugin</artifactId>
                 <version>${version.jboss.maven.plugin}</version>
             </plugin>
         </plugins>
     </build>

 </project>

pom.xml

ok，打完收工!

附示例源码下载：weblogic-rest-helloworld.zip