在Eclipse中建立Maven Web项目

一、软件版本
Eclipse Java EE IDE for Web Developers. Version: Neon Release (4.6.0)
Maven 3.3.9
Servlet 2.5
tomcat9
jdk1.8
本文将定Eclipse已配置好jdk和tomcat。
二、创建步骤
1、新建一个maven web项目
1.1 打开Eclipse，Ctrl + N 弹窗新建向导，如下图

1.2 在搜索框中输入 maven project，

1.3 选择 Next ，选择好工作区间

1.4 选择 Next ，这里选择webapp结尾的骨架来创建web项目

1.5 输入好信息后，点击finish

1.7 至此，一个初始的maven web项目就建好了，目录结构如下：

2、项目属性的基本设置

2.1更改项目属性为UTF-8。

2.2更改项目依赖的jdk为本地jdk。

2.3更改项目的其他属性

3、更改项目的部署路径

4、编写程序

这里编写一个简单servlet。首先在pom.xml中引入servlet依赖。

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>
	<groupId>com.kang</groupId>
	<artifactId>WebTest</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>WebTest Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<version>2.5</version>
			<scope>provided</scope>
		</dependency>
	</dependencies>
	<build>
		<finalName>WebTest</finalName>
	</build>
</project>

然后在src/main/java目录下建立一个servlet。

MyTest.java

package com.kang;

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

/**
 * Servlet implementation class MyTest
 */
public class MyTest extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public MyTest() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		response.getWriter().append("Served at: ").append(request.getContextPath());
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

最后编写jsp页面。

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
Hello World!
	<a href="http://localhost:8080/WebTest/MyTest">request.getContextPath()</a>
</body>
</html>

5、运行到tomcat上