嵌入式jetty

一.maven依赖

1. pom配置

   <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>jetty-server</artifactId>
       <version>9.2.11.v20150529</version>
   </dependency>
   <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>jetty-webapp</artifactId>
       <version>9.2.11.v20150529</version>
   </dependency>
   <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>jetty-annotations</artifactId>
       <version>9.2.11.v20150529</version>
   </dependency>
   <!-- Jetty Dependencies end here -->
   <!--Jetty Apache JSP dependency  -->
   <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>apache-jsp</artifactId>
       <version>9.2.11.v20150529</version>
   </dependency>
   <!-- JSTL Dependency -->
   <dependency>
       <groupId>jstl</groupId>
       <artifactId>jstl</artifactId>
       <version>1.2</version>
   </dependency>
   

二. jetty加载spring，并在jetty外面获取jetty创建的spring容器

1. web.xml配置spring监听器

   <?xml version="1.0" encoding="UTF-8"?>
   <web-app 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">
   
   	<welcome-file-list>
   		<welcome-file>index.html</welcome-file>
   	</welcome-file-list>
   
   	<context-param>
   		<param-name>contextConfigLocation</param-name>
   		<param-value>classpath*:spring-context.xml</param-value>
   	</context-param>
   
   	<!--Spring的ApplicationContext 载入 -->
   	<listener>
   		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   	</listener>
   
       <!--jerssy servlet-->
   	<servlet>
   		<servlet-name>Jersey Web Application</servlet-name>
   		<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
   		<init-param>
   			<param-name>jersey.config.server.provider.packages</param-name>
   			<param-value>com.example</param-value>
   		</init-param>
   		<load-on-startup>1</load-on-startup>
   	</servlet>
   	<servlet-mapping>
   		<servlet-name>Jersey Web Application</servlet-name>
   		<url-pattern>/jerssyTest/*</url-pattern>
   	</servlet-mapping>
   </web-app>
   

2. spring-contxt.xml注入带ApplicationContext的bean

   <?xml version="1.0" encoding="UTF-8"?>
   <beans xmlns="http://www.springframework.org/schema/beans"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.springframework.org/schema/beans
   	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"
          default-lazy-init="true">
   
   
       <!--web容器中注入applicatiobContext，使得获取的ctx使web容器中的ctx-->
       <bean id="springcontextHolder" class="server.com.SpringContextHolder" lazy-init="false"/>
   </beans>
   

3. SpringContextHolder类

   public class SpringContextHolder implements ApplicationContextAware{
   
       private static ApplicationContext applicationContext;
       public static ApplicationContext getApplicationContext() {
           return applicationContext;
       }
   
       public void setApplicationContext(ApplicationContext applicationContext)throws BeansException {
           SpringContextHolder.applicationContext = applicationContext;
       }
   }
   

三. 启动jetty

1. startup类

   public class Startup {
       public static void main(String[] args) throws Exception {
           Server server = new Server(8080);
   
           WebAppContext context = new WebAppContext();
           context.setContextPath("/test");
           ClassLoader loader = Thread.currentThread().getContextClassLoader();
           context.setDescriptor(loader.getResource("webroot/WEB-INF/web.xml").getPath());
           context.setResourceBase(loader.getResource("webroot").getPath());
           context.setParentLoaderPriority(true);
           server.setHandler(context);
   
           server.start();
   
           //获取jetty创建的spring容器
           ApplicationContext ctx = SpringContextHolder.getApplicationContext();
           System.out.println(ctx);
       }
   }