11. MAVEN publishes Web project

1. Create a new MAVEN project and select the WebApp framework

2. Write a servlet

Package Com.onyas.servlet;import Java.io.ioexception;import Javax.servlet.servletexception;import Javax.servlet.http.httpservlet;import Javax.servlet.http.httpservletrequest;import Javax.servlet.http.httpservletresponse;import Com.onyas.user.model.user;public class HelloServlet extends HttpServlet {/** *  */private static final long serialversionuid = 1L; @Overrideprotected void Doget ( HttpServletRequest req, HttpServletResponse resp) throws Servletexception, IOException {req.setattribute ("user", new User ("admin", "123", "Administrator"), Req.getrequestdispatcher ("/hello.jsp"). Forward (req, resp);}}

3, in Src/main/webapp/web-inf/web.xml

<?xml version= "1.0" encoding= "UTF-8"? ><web-app version= "2.5" xmlns= "Http://java.sun.com/xml/ns/javaee" Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation= "Http://java.sun.com/xml/ns/javaee http ://java.sun.com/xml/ns/javaee/web-app_2_5.xsd "><servlet><servlet-name>helloservlet</ servlet-name><servlet-class>com.onyas.servlet.helloservlet</servlet-class></servlet>< servlet-mapping><servlet-name>helloservlet</servlet-name><url-pattern>/hello.do</ Url-pattern></servlet-mapping></web-app>

4, the new hello.jsp under the SRC/MAIN/WEBAP

<%@ page language= "java" contenttype= "text/html; Charset=utf-8 "    pageencoding=" Iso-8859-1 "%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >

5, modified because of the introduction of the user class, so to add the dependency on other modules,If you do not find the jar package that you wrote at this time, because you did not install your own module into the local repository, you need to execute the clean install in your own module pom.xml.
<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><parent><groupId>com.onyas.user</groupId><artifactId> User-parent</artifactid><version>0.0.1-snapshot</version><relativepath&gt, .... /user-parent/pom.xml</relativepath></parent><artifactid>user-web</artifactid>< Packaging>war</packaging><name>user-web Maven webapp</name><url>http:// maven.apache.org</url><dependencies><dependency><groupid>junit</groupid>< artifactid>junit</artifactid><version>4.10</version><scope>test</schttp:// localhost:8080/user-web/hello.doope></dependency><!--dependency on the servlet--><dependency>< Groupid>org.mortbay.jetty</groupid><artifactid>servlet-api</artifactid><version>2.5.20110712</version></dependency>< Dependency><groupid>${project.groupid}</groupid><artifactid>user-services</artifactid ><version>${project.version}</version></dependency></dependencies><build>< Finalname>user-web</finalname></build></project>

6. On Pom.xml, right-click Run as-->maven build. --Enter the clean package. The war package will be generated under the target package, copy the war package to Tomcat under the WebApp directory and start Tomcat.
You can see the results by entering http://localhost:8080/user-web/hello.do in the browser.

7. Do this after each modification to execute the clean package, then copy the war package, then run Tomcat, very troublesome, so now there is a plugin, search copy maven plugin can.


A better way to do this is to release it with jetty, first configuring the jetty plugin in the parent pom.xml:
<!--configuration Jetty plug-in  --><plugin><groupid>org.mortbay.jetty</groupid><artifactid> jetty-maven-plugin</artifactid><configuration><scanintervalseconds>10</ scanintervalseconds><webapp><contextpath>/hello</contextpath></webapp><!--Configuring the Listening port --><connectors><connector implementation= "Org.eclipse.jetty.server.nio.SelectChannelConnector" > <port>8082</port><maxIdleTime>60000</maxIdleTime></connector></connectors> </configuration></plugin>

Then add the jetty plugin to the Web project:
<build><finalName>user-web</finalName><plugins><!--Add Jetty plugin--><plugin> <groupid>org.mortbay.jetty</groupid><artifactid>jetty-maven-plugin</artifactid></ Plugin></plugins></build>

Right-click in the Pom.xml of the Web projectRun as-->maven Builder. ->clean Compile Jetty:run, you will see the console start jetty, and after the boot is complete, you can experiment in the browser

11. MAVEN publishes Web project