JBoss RestEasy Hello World Example 專案 本範例實作說明： 本篇主要使用 Restful，做一個基本測試專案 一、範例開發準備工具 作業系統： Windows 7 開發工具： Eclipse Java EE IDE for Web Developers Juno Service Release2 JAVA JDK : JDK1.7.0_52 其它相關： Maven 4.0 Resteasy Version 3.0.6.Final 二、新增Maven範例專案 範例專案名稱：RestfulSample 1.建立一個新的Maven Project
2.勾選Create a simple project(skip archetype selection)後按下Next按鈕
3.填入GroupId，ArtifactId以及選擇 Packaging 後按Next
4.產生後結果 project 結構
5. 手動新增WEB_INF folder結果
三、編輯 pom.xml
<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>com.sample.rest.resteasy</groupId>
<artifactId>RestfulSample</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxrs</artifactId>
<version>3.0.6.Final</version>
</dependency>
</dependencies>
</project>四、編輯 web.xml
<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_3_0.xsd"
version="3.0">
<context-param>
<param-name>resteasy.scan</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>resteasy.servlet.mapping.prefix</param-name>
<param-value>/rest</param-value>
</context-param>
<listener>
<listener-class>
org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap
</listener-class>
</listener>
<servlet>
<servlet-name>resteasy-servlet</servlet-name>
<servlet-class>
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher
</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>resteasy-servlet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
五、編輯 MessageApplication.java
package com.sample.rest.app;
import java.util.HashSet;
import java.util.Set;
import javax.ws.rs.core.Application;
import com.sample.rest.MessageRestService;
public class MessageApplication extends Application {
private Set<Object> singletons = new HashSet<Object>();
public MessageApplication() {
singletons.add(new MessageRestService());
}
@Override
public Set<Object> getSingletons() {
return singletons;
}
}六、編輯 MessageRestService.java
package com.sample.rest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Response;
@Path("/message")
public class MessageRestService {
@GET
@Path("/{param}")
public Response printMessage(@PathParam("param") String msg) {
String result = "Restful example : " + msg;
return Response.status(200).entity(result).build();
}
}六、結果顯示 : URL = http://127.0.0.1:8080/RestfulSample/rest/message/puma
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