Jersey Restful Application with tomcat

##一、下載Jersey相關jar包，本示例用的版本是Jersey 2.22.1 ##二、eclipse新建dynamic web 項目，將Jersey相關包複製到WebContext/web-info/lib下，並添加項目對這些包的引用 ##三、編寫入口類RestApplication

package com.newbsoft.restful;

import org.glassfish.jersey.filter.LoggingFilter;
import org.glassfish.jersey.server.ResourceConfig;

public class RestApplication extends ResourceConfig {

	public RestApplication() {

		packages("com.newbsoft.restful");
		register(LoggingFilter.class);
	}

}

##四、編寫WebService 資源類（在Restful中，對客戶端而已，全部操做請求都是申請資源）

package com.newbsoft.restful.spi;

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

@Path("hello")
public class HelloSpi {
	
	@GET
	@Produces(MediaType.TEXT_PLAIN)
	public String resHi(){
		return "hi~ it's me!";
	}
}

##五、配置web.xml,啓動Tomcat服務器

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>RestfulWS</display-name>
  <servlet>  
    <servlet-name>RestWS</servlet-name>  
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>  
    <init-param>  
      <param-name>javax.ws.rs.Application</param-name>  
      <param-value>com.newbsoft.restful.RestApplication</param-value>
    </init-param>  
    <load-on-startup>1</load-on-startup>  
  </servlet>  
  <servlet-mapping>  
    <servlet-name>RestWS</servlet-name>  
    <url-pattern>/rest/*</url-pattern>  
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

##六、最後一步，測試 瀏覽器中輸入http://localhost:8080/RestfulServer/rest/hello，便可看到頁面返回 「hi~ it's me!」 url說明：RestfulServer是項目部署目錄名稱