STEP1:

选择创建Maven项目，勾选Create from archetype中的org.apache.maven.archetype:maven archetype-webapp
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选择maven settings.xml文件的位置
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构建好的项目结构如下图所示：
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STEP2

在pom.xml文件中添加tomcatc插件

        <plugin>
          <groupId>org.apache.tomcat.maven</groupId>
          <artifactId>tomcat7-maven-plugin</artifactId>
          <version>2.1</version>
          <configuration>
            <port>8080</port>
            <path>/</path>
            <uriEncoding>UTF-8</uriEncoding>
            <server>tomcat7</server>
          </configuration>
        </plugin>

除此以外，添加上servlet的jar包

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
    <groupId>javax.servlet.jsp</groupId>
    <artifactId>jsp-api</artifactId>
    <version>2.1</version>
    <scope>provided</scope>
    </dependency>

配置tomcat命令
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STEP3

添加hello.java文件

package com.zx;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
//import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class HelloForm
 */

public class HelloForm extends HttpServlet {
    private static final long serialVersionUID = 1L;


    public HelloForm() {
        super();
        // TODO Auto-generated constructor stub
    }


    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // 设置响应内容类型
        response.setContentType("text/html;charset=UTF-8");

        PrintWriter out = response.getWriter();
        String title = "使用 GET 方法读取表单数据";
        // 处理中文
        String name =new String(request.getParameter("name").getBytes("ISO-8859-1"),"UTF-8");
        String docType = "<!DOCTYPE html> \n";
        out.println(docType +
                "<html>\n" +
                "<head><title>" + title + "</title></head>\n" +
                "<body bgcolor=\"#f0f0f0\">\n" +
                "<h1 align=\"center\">" + title + "</h1>\n" +
                "<ul>\n" +
                "  <li><b>站点名</b>："
                + name + "\n" +
                "  <li><b>网址</b>："
                + request.getParameter("url") + "\n" +
                "</ul>\n" +
                "</body></html>");
    }

    // 处理 POST 方法请求的方法
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
}

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进而在web.xml 文件中添加servlet映射

  <servlet>
    <servlet-name>HelloForm</servlet-name>
    <servlet-class>com.zx.HelloForm</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>HelloForm</servlet-name>
    <url-pattern>/HelloForm</url-pattern>
  </servlet-mapping>

使用maven 进行构建
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