Jetty embedded web page service entry

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import java.io.IOException;import java.io.PrintWriter;import javax.servlet. ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org .eclipse.jetty.server.Request;import< span style="margin:0px; padding:0px; line-height:1.5!important"> org.eclipse.jetty.server.handler.AbstractHandler;public class TestController extends AbstractHandler {@Override public void< /span> handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {System.out.println(target); response.setContentType("text/html; charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setStatus(HttpServletResponse.SC_OK); baseRequest.setHandled(true); PrintWriter out = response.getWriter (); if(target.equals("/ favicon.ico")) {System.out.println("1"); out.println("404") ;} else {System.out.println("2"); out.print("
hello jetty!
");  if(request.getParameter("name") != null) {out.print(request.getParameter("name"));}} }}

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　　 To be precise, the Controller here should be a Handler, which must inherit from AbstractHandler, and rewrite the handle method to process the request. You can see that the Servlet API can be used directly here. By default, jetty requests After the completion, there will be a request for /favicon.ico in the background. Although it does not affect the front-end display, in order to prevent the back-end from repeating processing, a filter is performed here

After writing 　　Handler, write an entry service to load the Handler and start the service, here is JettyService.java< /span>

import org.eclipse.jetty.server.Server;public class JettyService {public static void main(String[] args) throws Exception {Server server = new Server(8989); server.setHandler(new TestController()); server.start(); server.join(); }}

　　 such a simple demo is finished, run the main method directly to start the service

　　 Then open the browser to visit: http ://127.0.0.1:8989/?name=jetty can see the result below

　　 In fact, the input here /xxx?name=xxx can be intercepted, because the target is obtained in the background, so it can be executed for different requests Different processing

　　You can see the following in the background Output:

　　 can see the embedded jetty Programming is very simple and flexible. Here is just the simplest case. Many advanced programming methods and configurations are used in actual production.

Description:< /p>

package youling. studio.jetty;import java.io.IOException;import java.io.PrintWriter;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 TestHandler extends AbstractHandler {@Override public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {//User request Uri //http://localhost:8080/index.html?name=rolin -> target=/index.html System.out.println("target is :" + target); //Set the http header information response.setContentType("text/html;charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setStatus(HttpServletResponse.SC_OK); baseRequest.setHandled(true); //Get the stream output to the browser PrintWriter out = response.getWriter(); if("/favicon.ico".equals(target)){//jetty will request this uri again at the end of each request by default System .out.println("request /favicon.ico"); out.write("404"); }else{ System.out.println("request other!"); out.print("
hello jetty! 
"); //Other request parameters if(request.getParameter("name") != null) {out.print("
your name is "+request.getParameter("name")+" !
");}} }}

package youling.studio.jetty;import org.eclipse .jetty.server.Server;public class JettyService {public static void main(String[] args ) throws Exception {//Create jettyserver Server server = new Server(8080); //Set handler server.setHandler(new TestHandler()); //Start server.start(); server.join(); }) 
 
 
  
 pom file
 
 
 
 
 
< 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/xsd/maven-4.0.0.xsd"> 4.0.0 youling.studio test-jetty 0.0.1-SNAPSHOT jar test-jetty http://maven .apache.org  UTF-8    junit  junit 3.8.1 test    org.eclipse.jetty jetty-server 9.2.22.v20170606    org.eclipse.jetty jetty-webapp 9.2.22.v20170606  

  
import java.io.IOException;import java.io.PrintWriter;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 TestController extends AbstractHandler {@Override public void hand le(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws  IOException, ServletException {System.out.println(target); response.setContentType("text/ html; charset=utf-8"); request.setCharacterEncoding("utf-8"); response.setStatus(HttpServletResponse.SC_OK); baseRequest.setHandled(true); PrintWriter out  span>= response.getWriter(); if(target.equals("/favicon.ico")) {System.out.println("1"); out.println("404");} else {System.out.println("2"); out.print("< h3>hello jetty!"); if(request.getParameter("name") != null) {out.print(request.getParameter( "name"));}} }}
  


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import org.eclipse.jetty. server.Server;public class JettyService {< span style="margin:0px; padding:0px; color:rgb(0,0,255); line-height:1.5!important">public static void main(String[] args) throws  Exception {Server server = new Server(8989); server.setHa ndler(new TestController()); server.start(); server.join(); }}

  



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