maven版本3.6.3

1、新建系统环境变量JAVA_HOME变量值为C:\Program Files\Java\jdk-12.0.1

2、编辑Path添加%JAVA_HOME%\bin

3、新建系统环境变量CLASSPATH，变量值为.;%JAVA_HOME%\bin;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar

maven 官网 https://mvnrepository.com/artifact/org.apache.maven.plugins

maven 环境变量配置：

问题解决

Some problems were encountered while building the effective model for com.xuxueli:xxl-job-executor-sample-springboot:jar:2.2.1-SNAPSHOT
'build.plugins.plugin.version' for org.apache.maven.plugins:maven-jar-plugin is missing. @ line 86, column 21
'build.plugins.plugin.version' for org.apache.maven.plugins:maven-resources-plugin is missing. @ line 133, column 21
'build.plugins.plugin.version' for org.springframework.boot:spring-boot-maven-plugin is missing. @ line 154, column 21
It is highly recommended to fix these problems because they threaten the stability of your build.
For this reason, future Maven versions might no longer support building such malformed projects.

maven 官网 https://mvnrepository.com/artifact/org.apache.maven.plugins

裝完maven后，package或clean时出错：
[WARN]
[WARN] Some problems were encountered while building the effective model 
 [WARN] 'build.plugins.plugin.version' is missing fororg.apache.maven.plugins:maven.compiler.plugin
It is highly recommended to fix these problems because they threaten the stability of your build.
For this reason, future Maven versions might no longer support building such malformed projects.

org.apache.maven.plugins:maven.compiler.plugin是一个plugin。可以通过“Add Denpendency”来添加。

在pom.xml中添加新的dependency:

 <dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.1</version>
<type>maven-plugin</type>
</dependency>
在build中添加：
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven.compiler.plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
<verbal>true</verbal>
</configuration>
</plugin>
</plugins>
</build>
</project>

但是仍然有个错误，错误信息：build.plugins.plugin.version
可以看到，在pom.xml里面的<build>下面，沒有<version>。因此要多加一个version：
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven.compiler.plugin</artifactId>
<version>2.1</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
<verbal>true</verbal>
</configuration>
</plugin>
</plugins>
</build>
</project>

好，解决问题。
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版权声明：本文为CSDN博主「白杨树」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/hongchangfirst/article/details/7527063

spring-boot-maven-plugin not found的解决方案

<plugin>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-maven-plugin</artifactId>//这行红色
</plugin>

<plugin>  
 <groupId>org.springframework.boot</groupId>  
 <artifactId>spring-boot-maven-plugin</artifactId>  
 <version>2.2.2.RELEASE</version>
</plugin>