Maven Download and install / stay IDEA Create Maven project

** stay JavaWeb The development of , As the project gets bigger , Corresponding , The project management also becomes very complicated . If there is a tool to manage projects , It will greatly simplify some trivial work such as package guide . **

01 Download and install

Download address ：http://maven.apache.org/download.cgi

After the download is successful, unzip

02 Configure environment variables

Add environment variables

edit path

Type… In the command window mvn -v See if the environment variable is successful , If there is a graphic result , Indicating successful configuration , Go to the next step

03 Modify the configuration file

because maven The default warehouse path is c disc , Here, reconfigure the following warehouse Path , The first thing you need to do is maven Create a new one in the directory repository Empty directory , open maven Install under directory conf Catalog , modify settings.xml file .

because Maven The default node of is overseas , For convenience jar Package download , You need to configure an image file , Alibaba cloud image is used here .

Here we are ,Maven Installation of is complete .

04 Use IDEA establish Maven

First , open IDEA Create a new project . Check the options in the figure to create .

Fill in project information .

choice Maven Path and configuration file and warehouse .

After entering the project , In the lower right corner, select auto Guide Package . Wait a while , When the console shows the graphic result , It means success .

05 Use Maven management JAR package

Whatever you use jar package , All need to go to pom.xml Middle configuration ; Here we use junit For example .

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>

Recommend to Maven Download what you need in the central remote warehouse JAR package , Attached address ：https://mvnrepository.com/

06 common problem

The project can be in IDEA Run in , But can’t publish , Maybe it’s because there’s no resource filter configured . Need to be in pom.xml Add the following configuration ：

<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>**/*.properties</exclude>
<exclude>**/*.xml</exclude>
</excludes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>