Jboss Fuse 简明教程

JBoss Fuse - Rest Web Services

首先，REST 代表表象状态传输。它是一种基于无状态、可缓存的客户端-服务器协议（大多数情况下是 HTTP）开发 Web 服务的方法。

REST Web 服务使用 HTTP 请求从网络发布、获取、删除数据。

REST Development using CXF

Create a simple Maven quick-start project

mvn archetype:generate
-DgroupId = com.tuts.abhinav
-DartifactId = rest-service
-DarchetypeArtifactId = maven-archetype-quickstart
-DinteractiveMode = false

Add dependencies

<dependency>
   <groupId>org.apache.servicemix.specs</groupId>
   <artifactId>org.apache.servicemix.specs.jsr311-api-1.1.1</artifactId>
   <version>1.9.0</version>
   <scope>provided</scope>
</dependency>

<dependency>
   <groupId>org.apache.servicemix</groupId>
   <artifactId>servicemix-http</artifactId>
   <version>2013.01</version>
</dependency>

<dependency>
   <groupId>log4j</groupId>
   <artifactId>log4j</artifactId>
   <version>1.2.16</version>
</dependency>

Add Build Instruction

<build>
   <defaultGoal>install</defaultGoal>
   <plugins>
      <plugin>
         <groupId>org.apache.felix</groupId>
         <artifalctId>maven-bundle-plugin</artifactId>
         <version>2.3.4</version>
         <extensions>true</extensions>

         <configuration>
            <instructions>
               <Bundle-SymbolicName>rest-example-database-post-method
                  </Bundle-SymbolicName>
               <Import-Package>* </Import-Package>
            </instructions>
         </configuration>

      </plugin>
   </plugins>
</build>

Add Fuse Plugin Repositories

<pluginRepositories>
   <pluginRepository>
      <id>fusesource.m2</id>
      <name>FuseSource Community Release Repository</name>
      <url>http://repo.fusesource.com/nexus/content/repositories/releases</url>
      <snapshots>
         <enabled>false</enabled>
      </snapshots>

      <releases>
         <enabled>true</enabled>
      </releases>
   </pluginRepository>
<pluginRepositories>

Add Repositories

<repositories>
   <repository>
      <id>fusesource.m2</id>
      <name>FuseSource Community Release Repository</name>
      <url>http://repo.fusesource.com/nexus/content/repositories/releases</url>
      <snapshots>
         <enabled>false</enabled>
      </snapshots>

      <releases>
         <enabled>true</enabled>
      </releases>

   </repository>

   <repository>
      <id>fusesource.ea</id>
      <name>FuseSource Community Early Access Release Repository</name>
      <url>http://repo.fusesource.com/nexus/content/groups/ea</url>
      <snapshots>
         <enabled>false</enabled>
      </snapshots>
      <releases>
         <enabled>true</enabled>
      </releases>
   </repository>

</repositories>

Create Service Class

在 com/tuts/ 下创建类 UserService.java。

package com.tuts;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Path("/UserService_1")
public class UserService {
   @GET
   @Path("/get_data")
   @Produces(MediaType.APPLICATION_JSON)

   public String getUser() {
      String reponse = "This is standard response from REST";
      return reponse;
   }
}

Create Blueprint.xml

在 /src/main/resources/OSGI-INF/blueprint blueprint.xml 下创建 blueprint.xml。

<?xml version = "1.0" encoding = "UTF-8"?>
<blueprint xmlns = "http://www.osgi.org/xmlns/blueprint/v1.0.0"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xmlns:jaxrs = "http://cxf.apache.org/blueprint/jaxrs"
   xsi:schemaLocation = "http://www.osgi.org/xmlns/blueprint/v1.0.0
   http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
   http://cxf.apache.org/blueprint/jaxrs
   http://cxf.apache.org/schemas/blueprint/jaxrs.xsd">

   <jaxrs:server id = "service" address = "/users">
      <jaxrs:serviceBeans>
         <ref component-id = "userService" />
      </jaxrs:serviceBeans>
   </jaxrs:server>

   <bean id = "userService" class = "com.tuts.UserService" />
</blueprint>

Install Rest service in Fuse

install -s mvn:com.tuts.abhinav/rest-service/1.0-SNAPSHOT

Check if Bundle has a Registered Web-Service

打开 URL http://localhost:8181/cxf

registered web service

Test Web Service

打开 URL http://localhost:8181/cxf/users12/UserService_1/get_data

localhost cxf