maven创建webapp+Freemarker组件的实现

下载安装配置maven

Maven官方版下载丨最新版下载丨绿色版下载丨APP下载-123云盘123云盘为您提供Maven最新版正式版官方版绿色版下载,Maven安卓版手机版apk免费下载安装到手机,支持电脑端一键快捷安装https://www.123pan.com/s/9QRqVv-TcUY.html链接为3.6.2-3.6.3的版本

下载解压其中一个版本

开始配置环境变量

%MAVEN_HOME%

找到对应的路径

xxxx/bin

系统变量PATH中引入

%MAVEN_HOMOE%

win+r输入cmd后运行命令mvn - v，如图

创建项目

打开idea->新建项目->maven

可以自行修改组

com.xxxx

改为1.8

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

导入依赖

    <dependency>
      <groupId>org.freemarker</groupId>
      <artifactId>freemarker</artifactId>
      <version>2.3.23</version>
    </dependency>
    <!-- servlet-api的坐标依赖-->

    <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>

导入组件

  <build>
    <finalName>F01</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <!-- https://mvnrepository.com/artifact/org.eclipse.jetty/jetty-maven-plugin -->

          <groupId>org.eclipse.jetty</groupId>
          <artifactId>jetty-maven-plugin</artifactId>
          <version>9.2.1.v20140609</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>

创建servlet类

package com.xxxx;

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

@WebServlet("/f001")
public class Freemarker001 extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setAttribute("msg","Hello Freemarker!");
        req.getRequestDispatcher("template/f001.ftl").forward(req,resp);
    }
}

web.xml

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

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <servlet>
    <servlet-name>freemarker</servlet-name>
    <servlet-class>freemarker.ext.servlet.FreemarkerServlet</servlet-class>
    <init-param>
      <param-name>TemplatePath</param-name>
      <param-value>/</param-value>
    </init-param>
    <init-param>
      <param-name>default_encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>freemarker</servlet-name>
    <url-pattern>*.ftl</url-pattern>
  </servlet-mapping>


</web-app>