Jetty实战之 嵌入式运行Jetty

本文地址：http://blog.csdn.net/kongxx/article/details/7218776

Jetty最常用的一种用法是把Jetty嵌入到自己的Java应用程序中，此时Jetty作为一个后台的Servlet容器运行，接受用户的http请求，下面是一个最简单的嵌入Jetty的用法。

1. 首先使用Maven创建一个java工程

mvn archetype:generate -DgroupId=com.google.code.garbagecan.jettystudy -DartifactId=jettystudy -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false2. 修改pom文件，添加或修改编译和依赖部分

<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.google.code.garbagecan.jettystudy</groupId> <artifactId>jettystudy</artifactId> <packaging>jar</packaging> <version>1.0-SNAPSHOT</version> <name>jettystudy</name> <url>http://maven.apache.org</url> <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <inherited>true</inherited> <configuration> <source>1.6</source> <target>1.6</target> <debug>true</debug> </configuration> </plugin> </plugins> </build> <dependencies> <dependency> <groupId>org.eclipse.jetty.aggregate</groupId> <artifactId>jetty-all</artifactId> <version>8.0.4.v20111024</version> <type>jar</type> <scope>provided</scope> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> </project>3. 创建一个Server类，用了启动Jetty server，并且通过一个HelloHandler来处理浏览器发送过来的请求；

package com.google.code.garbagecan.jettystudy.sample1; import org.eclipse.jetty.server.Server; public class MyServer { public static void main(String[] args) throws Exception { Server server = new Server(8080); server.setHandler(new HelloHandler()); server.start(); server.join(); } }4. 创建一个Handler类，用了处理所有客户端的请求

package com.google.code.garbagecan.jettystudy.sample1; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.eclipse.jetty.server.Request; import org.eclipse.jetty.server.handler.AbstractHandler; public class HelloHandler extends AbstractHandler { public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { response.setContentType("text/html;charset=utf-8"); response.setStatus(HttpServletResponse.SC_OK); baseRequest.setHandled(true); response.getWriter().println("<h1>Hello World</h1>"); response.getWriter().println("Request url: " + target); } }5. 运行MyServer类，然后通过浏览器访问http://localhost:8080/，可以看到“Hello World！”和请求的url。