Configure Maven project in idea

 

content

Several common problems with Maven 

Set the directory in Maven to the corresponding color

 maven garbled problem at runtime

maven toolbar not found problem

  Create maven with archetype

import maven project

If maven is not displayed

 Add plugin quick action

 Import jar package using coordinates

Import the required dependencies:

Dependency scope

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There is a compatibility problem with versions above maven 3.6.2 in idea. In order to avoid conflicts, version 3.6.1 is installed in idea

Create an empty project, name it, and then search for maven in the settings

Several common problems with Maven 

Set the directory in Maven to the corresponding color

Add the following:

<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>
</dependencies>

The refresh is done as follows:

 maven garbled problem at runtime

 Add the following:

-Dfile.encoding=GB2312

 operation result:

maven toolbar not found problem

 Shortcut settings

 Clicking compile will generate the corresponding target directory, and clicking clean will clear the target directory

  Create maven with archetype

 create web

import maven project

The + sign of the maven tool, select the maven pom.xml file you want to import

If maven is not displayed

 Add plugin quick action

Open the settings as follows

 Import jar package using coordinates

1. Write the <dependencies> tag in pom.xml (you can also import it manually with alt+insert)

2. Use <dependency> to introduce coordinates in the <dependencies> tag

3. Define the groupId, artfigactId, version of the coordinates

4. Click the refresh button to make the coordinates take effect

Import the required dependencies:

<!--   <dependencies> 导入依赖</dependencies>-->
<dependencies>

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>

<!--导入mysql的jar包，只要写出坐标位置即可-->
    <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.47</version>
</dependency>


</dependencies>

Dependency scope

By setting the dependency scope of the coordinates, you can set the scope of the corresponding jar package: compilation environment, test environment, running environment

<scope> The default value text is: compile (that is, it takes effect everywhere)

 For example, <scope>test</scope> is only valid in the test directory, the rest are invalid