Jetty实战(7)之嵌入式Jetty应用Demo

pom.xml：

<!-- jetty dependecies -->  
        <dependency>  
            <groupId>org.eclipse.jetty</groupId>  
            <artifactId>jetty-server</artifactId>  
            <version>9.0.0.v20130308</version>  
        </dependency>  
  
        <dependency>  
            <groupId>org.eclipse.jetty</groupId>  
            <artifactId>jetty-webapp</artifactId>  
            <version>9.0.0.v20130308</version>  
        </dependency>  
  
        <dependency>  
            <groupId>org.eclipse.jetty</groupId>  
            <artifactId>jetty-continuation</artifactId>  
            <version>9.0.0.v20130308</version>  
        </dependency>  
  
        <dependency>  
            <groupId>org.eclipse.jetty</groupId>  
            <artifactId>jetty-jsp</artifactId>  
            <version>9.0.0.v20130308</version>  
        </dependency>  
        <!-- jetty dependecies -->

 demo：

package jetty.c1;  
  
import org.eclipse.jetty.server.Connector;  
import org.eclipse.jetty.server.Request;  
import org.eclipse.jetty.server.Server;  
import org.eclipse.jetty.server.ServerConnector;  
import org.eclipse.jetty.server.handler.*;  
import org.eclipse.jetty.servlet.ServletContextHandler;  
import org.eclipse.jetty.servlet.ServletHolder;  
  
import javax.servlet.ServletException;  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
import java.io.IOException;  
  
/** 
 * Created by Administrator on 2016/10/31. 
 */  
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 "+request.getAttribute("welcome")+"</h1><div style=\"height:500px;background-image: url(data/nm.png);\">");  
    }  
  
    public static void main(String[] args) throws Exception  
    {  
        Server server = new Server();  
        // 设置在JVM退出时关闭Jetty的钩子。  
        server.setStopAtShutdown(true);  
        //server.setHandler(new HelloHandler());  
  
    //设定多个connector绑定多个端口  
        ServerConnector connector1 = new ServerConnector(server);  
        connector1.setPort(8080);  
  
        ServerConnector connector2 = new ServerConnector(server);  
        connector2.setPort(9090);  
  
        server.setConnectors(new Connector[] { connector1, connector2 });  
  
        //资源目录 列出文件名  
        ResourceHandler resourceHandler = new ResourceHandler();  
  
        resourceHandler.setDirectoriesListed(true);  
        resourceHandler.setResourceBase("D:\\360Downloads");  
        resourceHandler.setStylesheet("");  
  
        //设置静态目录路径  
        ContextHandler staticContextHandler = new ContextHandler();  
        staticContextHandler.setContextPath("/data");  
        //staticContextHandler.setContextPath("/files");  
        staticContextHandler.setHandler(resourceHandler);  
  
        ServletContextHandler servletContextHandler = new ServletContextHandler(ServletContextHandler.NO_SESSIONS);  
        servletContextHandler.setContextPath("/");  
  
        /**可在下面依次添加多个servlet**/  
        servletContextHandler.addServlet(new ServletHolder(new MyTestServlet("show")), "/show");  
        servletContextHandler.addServlet(new ServletHolder(new MyTestServlet("display")), "/display");  
        //servletContextHandler.addServlet(new ServletHolder(new SpuSimilarityServlet()), "/spu");  
        //servletContextHandler.addServlet(new ServletHolder(new SpuResultServlet()), "/search");  
        //  servletContextHandler.addServlet(new ServletHolder(new AdminServlet()), "/db");  
  
        //设置request等 回话值  
        HandlerWrapper wrapper = new HandlerWrapper() {  
            @Override  
            public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response)  
                    throws IOException, ServletException {  
                request.setAttribute("welcome", "Wylazy");  
                super.handle(target, baseRequest, request, response);  
            }  
        };  
  
        HandlerList handlers = new HandlerList();  
        handlers.addHandler(wrapper);  
        handlers.addHandler(servletContextHandler);  
        handlers.addHandler(staticContextHandler);  
        handlers.addHandler(new HelloHandler());  
        server.setHandler(handlers);  
  
        server.start();  
        server.join();  
    }  
}

package jetty.c1;  
  
import com.google.gson.Gson;  
  
import javax.servlet.ServletException;  
import javax.servlet.ServletOutputStream;  
import javax.servlet.annotation.WebServlet;  
import javax.servlet.http.HttpServlet;  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
import java.io.IOException;  
import java.util.ArrayList;  
import java.util.List;  
  
/** 
 * Created by Administrator on 2016/10/31. 
 */  
public class MyTestServlet extends HttpServlet {  
  
    private String msg = "init";  
  
    public MyTestServlet(String msg) {  
        this.msg = msg;  
    }  
  
    @Override  
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)  
            throws ServletException, IOException {  
        // TODO Auto-generated method stub  
        doPost(req, resp);  
    }  
  
    @Override  
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)  
            throws ServletException, IOException {  
  
        List<String> list = new ArrayList<String>();  
  
        list.add("A");  
        list.add("中国");  
        list.add("外国");  
        list.add(msg);  
  
        Gson g = new Gson();  
  
        //resp.setContentType("charset=utf-8");  
        ServletOutputStream out = resp.getOutputStream();  
        String json = g.toJson(list);  
        out.write(json.getBytes());  
        out.flush();  
        out.close();  
    }  
  
    @Override  
    protected void doDelete(HttpServletRequest req, HttpServletResponse resp)  
            throws ServletException, IOException {  
        super.doDelete(req, resp);  
    }  
  
    @Override  
    protected void doPut(HttpServletRequest req, HttpServletResponse resp)  
            throws ServletException, IOException {  
        super.doPut(req, resp);  
    }  
  
}

 运行效果：