moven的学习

目录结构优先。。。。。。

|--pom.xml

|--src

|--main

|--java

|--com

|--mydomain

|--TestServlet.java

|--resources

|--webapp

|--index.jsp

|--WEB-INF

|--web.xml

在这个测试项目里面，文件非常少，把单元测试文件夹暂时省了，有需要可以根据我其它几个EJB实例里讲到的，添加进去，简单点有利于初学的人去大概了解一下maven，高手就别在这转了，不适合你，呵呵。

其实我没写什么代码，就一个文件名为TestServlet.java的Servlet，其它的都是文件夹，index.jsp也写上Hello World几个字，有需要可以自己加！再加上在web.xml里配置了几行，就这样，其实就是方便大家了解Maven，至于稍深一点的，往后会写，再稍深一点的，我不会，谢谢合作！



好了，下面就把TestServlet.java文件代码贴出来看看

package com.mydomain;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

//extend HttpServlet这个类，就是一个Servlet了
public class TestServlet extends HttpServlet
{

@Override
protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException
{

//通常学习的话doGet跟doPost就用下面这种方式将它们合并起来玩就行了
doPost(httpServletRequest, httpServletResponse);
}

@Override
protected void doPost(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException
{

//下面这些代码输出一些非常基本的信息，大家可以忽略它
String contextPath = httpServletRequest.getContextPath();
String authType = httpServletRequest.getAuthType();
String charactorEncoding = httpServletRequest.getCharacterEncoding();
String contentType = httpServletRequest.getContentType();
String method = httpServletRequest.getMethod();
String pathInfo = httpServletRequest.getPathInfo();
String pathTranslated = httpServletRequest.getPathTranslated();
String protocol = httpServletRequest.getProtocol();
String queryString = httpServletRequest.getQueryString();
String remoteAddress = httpServletRequest.getRemoteAddr();
String remoteHost = httpServletRequest.getRemoteHost();
String remoteUser = httpServletRequest.getRemoteUser();
String requestURI = httpServletRequest.getRequestURI();
String requestedSessionId = httpServletRequest.getRequestedSessionId();
String scheme = httpServletRequest.getScheme();
String serverName = httpServletRequest.getServerName();
String servletPath = httpServletRequest.getServletPath();


//将信息输出到页面上
PrintWriter printWriter = httpServletResponse.getWriter();
printWriter.println("contextPath = " + contextPath);
printWriter.print("
");
printWriter.println("authType = " + authType);
printWriter.print("
");
printWriter.println("charactorEncoding = " + charactorEncoding);
printWriter.print("
");
printWriter.println("contentType = " + contentType);
printWriter.print("
");
printWriter.println("method = " + method);
printWriter.print("
");
printWriter.println("pathInfo = " + pathInfo);
printWriter.print("
");
printWriter.println("pathTranslated = " + pathTranslated);
printWriter.print("
");
printWriter.println("protocol = " + protocol);
printWriter.print("
");
printWriter.println("queryString = " + queryString);
printWriter.print("
");
printWriter.println("remoteAddress = " + remoteAddress);
printWriter.print("
");
printWriter.println("remoteHost = " + remoteHost);
printWriter.print("
");
printWriter.println("remoteUser = "+ remoteUser);
printWriter.print("
");
printWriter.println("requestURI = " + requestURI);
printWriter.print("
");
printWriter.println("requestedSessionId = " + requestedSessionId);
printWriter.print("
");
printWriter.println("scheme = " + scheme);
printWriter.print("
");
printWriter.println("serverName = " + serverName);
printWriter.print("
");
printWriter.println("servletPath = " + servletPath);
}

}



下面则是web.xml文件，非常简单的

"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >


Archetype Created Web Application



Test Servlet
com.mydomain.TestServlet


Test Servlet
/TestServlet



当然，Maven项目少不了pom文件，也贴出来吧，给大家剪剪







4.0.0


com.mydomain


wartest


war


1.0-SNAPSHOT
Maven Webapp Test
http://maven.apache.org




junit
junit
3.8.1
test




javax.servlet
servlet-api
2.3





wartest








maven-compiler-plugin


2.0.2





1.5
1.5


UTF-8





maven-resources-plugin
2.2

UTF-8








好了，写完了，下面进到项目根目录，运行一下

mvn install



就可以在根目录的target得到一个wartest.war了，把它放到Tomcat里面，或者Jboss里面，或者任何其它Web container都可以的，怎么样mvn 还算容易吧