Maven

1.maven项目架构管理工具

核心思想：约定大于配置

1.1下载解压

1.2配置环境

M2_HOME

MAVEN_HOME

%MAVEN_HOME%\bin

测试 mvn -v

出现这上面图 配置成功

1.3配置阿里云镜像

找到该代码

<!-- 阿里云仓库 -->
<mirror>
        <id>nexus-aliyun</id>

        <mirrorOf>*,!jeecg,!jeecg-snapshots</mirrorOf>

        <name>Nexus aliyun</name>

        <url>https://maven.aliyun.com/nexus/content/groups/public </url>
</mirror>

1.4本地仓库

新建文件夹如下

<localRepository>F:\javaweb\maven\apache-maven-3.6.1\maven-repo</localRepository>

2.使用IDEA使用maven

name项目名

IDEA创建maven后需要看一下maven配置

settings中直接搜索maven

3.在IDEA中配置Tomcat

需要选择添加

4.javaweb maven结构

4.1porm.xml

是maven的核心配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!--maven版本和头文件-->
<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
<!--  这里是我们配置的groupId-->
  <groupId>org.example</groupId>
  <artifactId>javaweb-02-maven</artifactId>
  <version>1.0-SNAPSHOT</version>
<!--  package:项目的打包方式-->
<!--  java:java应用-->
<!--  war:javaweb应用-->
  <packaging>war</packaging>

  <name>javaweb-02-maven Maven Webapp</name>
  <!-- FIXME change it to the project‘s website -->
  <url>http://www.example.com</url>

  <properties>
<!--    项目编码-->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!--    编码版本-->
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>
<!--项目依赖-->
  <dependencies>
<!--    项目依赖的jar包配置-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
    </dependency>
<!--    这里可以导入jar,然后导入其他依赖的jar包-->
  </dependencies>

  <build>
    <finalName>javaweb-02-maven</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

4.2防止资源导出失败

在 build 中加入

<!--    防止资源导出失败配置-->
    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>true</filtering>
      </resource>
    </resources>

maven