Maven -DskipTests difference skip unit testing and -Dmaven.test.skip

• Note mvn compile the code will not compile in the Test directory, but mvn package by default when compiling code in the Test directory !!!

• This time you can use:
• -DskipTests, test is not performed, but the compiler generated test class file corresponding to the class target / test-classes.
• -Dmaven.test.skip = true, does not execute test cases, test cases are not compiled class.

First, using the maven.test.skip, only skip unit tests run, and test code compiled skipped.
mvn package -Dmaven.test.skip=true

Can also be modified in the pom.xml file

<plugin>  
    <groupId>org.apache.maven.plugin</groupId>  
    <artifactId>maven-compiler-plugin</artifactId>  
    <version>2.1</version>  
    <configuration>  
        <skip>true</skip>  
    </configuration>  
</plugin>  
<plugin>  
    <groupId>org.apache.maven.plugins</groupId>  
    <artifactId>maven-surefire-plugin</artifactId>  
    <version>2.5</version>  
    <configuration>  
        <skip>true</skip>  
    </configuration>  
</plugin> 

Second, using the mvn package -DskipTestsskip unit testing, but will continue to compile; if no time modification unit testing bug, or unit test compilation errors. Using the above, do not use this

<plugin>    
    <groupId>org.apache.maven.plugins</groupId>    
    <artifactId>maven-surefire-plugin</artifactId>    
    <version>2.5</version>    
    <configuration>    
        <skipTests>true</skipTests>    
    </configuration>    
</plugin>