基于JAX - RS（JSR311）规范开发RESTful Web服务

<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>com.company</groupId>   <artifactId>rest</artifactId>   <packaging>war</packaging>   <version>0.0.1-SNAPSHOT</version>   <name>rest</name>   <url>http://maven.apache.org</url>    <dependencies>    <dependency>     <groupId>com.sun.jersey</groupId>     <artifactId>jersey-server</artifactId>     <version>1.8</version>    </dependency>  </dependencies>    <build>    <finalName>api</finalName>    <pluginManagement>     <plugins>                     <plugin>       <groupId>org.codehaus.mojo</groupId>       <artifactId>tomcat-maven-plugin</artifactId>              <configuration>        <server>tomcat</server>        <path>/api</path>       </configuration>             </plugin>     </plugins>    </pluginManagement>   </build>  </project>

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 showMessage(@PathParam("param") String msg) {    String result = "第一个rest应用:" + msg;    return Response.status(200).entity(result).build();   }    }

<web-app id="WebApp_ID" version="2.4"   xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">    <display-name>API</display-name>       <servlet>    <servlet-name>jersey-serlvet</servlet-name>    <servlet-class>                       com.sun.jersey.spi.container.servlet.ServletContainer                  </servlet-class>    <init-param>         <param-name>com.sun.jersey.config.property.packages</param-name>         <param-value>com.company.rest</param-value>    </init-param>    <load-on-startup>1</load-on-startup>   </servlet>      <servlet-mapping>    <servlet-name>jersey-serlvet</servlet-name>    <url-pattern>/rest/*</url-pattern>   </servlet-mapping>   </web-app>