1.Maven介绍
Apache Maven是个项目管理和自动构建工具,基于项目对象模型(POM)的概念。
作用:完成项目的相关操作,如:编译,构建,单元测试,安装,网站生成和基于Maven部署
2.Maven安装与配置
配置maven环境变量(配置方式跟jdk有些类似)可在我以前的博客配置jdk中找到
更改PATH
%MAVEN_HOME%\bin;%M2_HOME%\bin;
验证是否成功
找到自己解压出来的文件
进入conf中更改settubgs文件
找到localRepository
新建一个自己的仓库,然后改路径名
找到mirrors 加入
Eclipse配置
设置maven安装路径在Window中打Maven
进入Installations点击Add将自己的Maven路径放进去
再点击User Settings 点击第二个Browse将前面更改的settings.xml选择进去
测试maven是否有
新建一个Maven Project工程
点击next
注意将Catalog的选项选择为internal并且中间的选项要选择到最后一个maven_archetype-webapp,然后点击next
Group Id是公司名称
Artifact Id是项目名
然后点击Finish(要联网)会下载东西,创建比较慢
新创建项目会报错
找到pom.xml
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.44</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
将上提供的代码插入到dependencies中
<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.xhh</groupId>
<artifactId>T237_maven</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>T237_maven Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.44</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>T237_maven</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
保存,会下载东西等
加上
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
配置web.xml:
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>Archetype Created Web Application</display-name>
</web-app>
找到当前工程右击找到Properties,再找到Project Facets
把java改成1.8,把Dynamic Web Services前面的勾去掉后点击Apply,在把Dynamic Web Services勾上
点击黄色的部分
点击ok
接下来测试环境搭建好了没有
代码:
package com.xhh.maven;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/mavenTest")
public class MavenServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println("maven 环境搭建完毕!!!");
}
}