1- 根据包结构创建maven项目目录

TestMaven

  - src

      - src/main/java/anliven/testmaven01/HelloMaven.java

      - src/test/java/anliven/testmanven01/HelloMavenTest.java

  - pom.xml

2- 示例代码和pom文件

<groupId></groupId>  ：项目的包名

<artifactId></artifactId>  ： 模块名

<version></version>  ： 版本，遵循Maven版本管理规范

HelloMaven.java

package anliven.testmaven01;

public class HelloMaven {

        public String sayHello() {

                return "Hello Maven!";

        }

}

HelloMavenTest.java

package anliven.testmaven01;

import org.junit.*;

import org.junit.Assert.*;

public class HelloMavenTest {

        @Test

        public void testMaven() {

                System.out.println("Run test!");

                Assert.assertEquals("Hello Maven!", new HelloMaven().sayHello());

        }

}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>

<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>

        <groupId>anliven.testmaven01</groupId>

        <artifactId>testmaven</artifactId>

        <version>0.0.1-SNAPSHOT</version>

        <dependencies>

                <dependency>

                        <groupId>junit</groupId>

                        <artifactId>junit</artifactId>

                        <version>4.10</version>

                </dependency>

        </dependencies>

</project>

3- 运行mvn compile

如果是第一次运行mvn compile等命令时，将会下载很多的第三方和maven所依赖的jar包。

在Maven项目根目录下，默认生成target目录：

target    　　　　　    构建过程中的默认生成的临时目录

  target/classes/            存放src/main/java目录下源文件编译出来的字节码文件（.class）

  target/maven-status/

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ mvn compile

[INFO] Scanning for projects...

[INFO]

[INFO] ------------------------------------------------------------------------

[INFO] Building testmaven 0.0.1-SNAPSHOT

[INFO] ------------------------------------------------------------------------

[INFO]

[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ testmaven ---

[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!

[INFO] skip non existing resourceDirectory D:\Anliven-Running\Zen\EclipseProjects\TestMaven\src\main\resources

[INFO]

[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ testmaven ---

[INFO] Changes detected - recompiling the module!

[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!

[INFO] Compiling 1 source file to D:\Anliven-Running\Zen\EclipseProjects\TestMaven\target\classes

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 2.064 s

[INFO] Finished at: 2017-10-20T10:56:12+08:00

[INFO] Final Memory: 15M/292M

[INFO] ------------------------------------------------------------------------

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ ls -l

total 1

-rw-r--r-- 1 guowli 1049089 561 Oct 19 17:44 pom.xml

drwxr-xr-x 1 guowli 1049089   0 Oct 19 13:21 src/

drwxr-xr-x 1 guowli 1049089   0 Oct 20 10:56 target/

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ ls -l target/

total 0

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 classes/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 maven-status/

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ls -l target/classes/anliven/testmaven01/HelloMaven.class

-rw-r--r-- 1 guowli 1049089 406 Oct 20 10:56 target/classes/anliven/testmaven01/HelloMaven.class

4- 运行mvn test

生成如下目录：

target/surefire-reports/ 存放生成的测试报告

target/test-classes/ 存放src/test/java目录下源文件编译出来的字节码文件（.class）

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ ls -l target/

total 0

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 classes/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 maven-status/

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ mvn test

[INFO] Scanning for projects...

[INFO]

[INFO] ------------------------------------------------------------------------

[INFO] Building testmaven 0.0.1-SNAPSHOT

[INFO] ------------------------------------------------------------------------

[INFO]

[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ testmaven ---

[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!

[INFO] skip non existing resourceDirectory D:\Anliven-Running\Zen\EclipseProjects\TestMaven\src\main\resources

[INFO]

[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ testmaven ---

[INFO] Nothing to compile - all classes are up to date

[INFO]

[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ testmaven ---

[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!

[INFO] skip non existing resourceDirectory D:\Anliven-Running\Zen\EclipseProjects\TestMaven\src\test\resources

[INFO]

[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ testmaven ---

[INFO] Changes detected - recompiling the module!

[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!

[INFO] Compiling 1 source file to D:\Anliven-Running\Zen\EclipseProjects\TestMaven\target\test-classes

[INFO]

[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ testmaven ---

[INFO] Surefire report directory: D:\Anliven-Running\Zen\EclipseProjects\TestMaven\target\surefire-reports

-------------------------------------------------------

 T E S T S

-------------------------------------------------------

Running anliven.testmaven01.HelloMavenTest

Run test!

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.064 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 3.286 s

[INFO] Finished at: 2017-10-20T11:01:06+08:00

[INFO] Final Memory: 16M/291M

[INFO] ------------------------------------------------------------------------

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ ls -l target/

total 0

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 classes/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 maven-status/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 11:01 surefire-reports/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 11:01 test-classes/

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ ls -l target/surefire-reports/

total 9

-rw-r--r-- 1 guowli 1049089  282 Oct 20 11:01 anliven.testmaven01.HelloMavenTest.txt

-rw-r--r-- 1 guowli 1049089 6398 Oct 20 11:01 TEST-anliven.testmaven01.HelloMavenTest.xml

5- 运行mvn package

生成如下目录及文件：

target/maven-archiver/

target/xxx-y.y.y-zzz.jar 生成的jar包

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ ls -l target/

total 0

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 classes/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 10:56 maven-status/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 11:01 surefire-reports/

drwxr-xr-x 1 guowli 1049089 0 Oct 20 11:01 test-classes/

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ mvn package

[INFO] Scanning for projects...

[INFO]

[INFO] ------------------------------------------------------------------------

[INFO] Building testmaven 0.0.1-SNAPSHOT

[INFO] ------------------------------------------------------------------------

[INFO]

[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ testmaven ---

[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!

[INFO] skip non existing resourceDirectory D:\Anliven-Running\Zen\EclipseProjects\TestMaven\src\main\resources

[INFO]

[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ testmaven ---

[INFO] Nothing to compile - all classes are up to date

[INFO]

[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ testmaven ---

[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!

[INFO] skip non existing resourceDirectory D:\Anliven-Running\Zen\EclipseProjects\TestMaven\src\test\resources

[INFO]

[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ testmaven ---

[INFO] Changes detected - recompiling the module!

[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!

[INFO] Compiling 1 source file to D:\Anliven-Running\Zen\EclipseProjects\TestMaven\target\test-classes

[INFO]

[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ testmaven ---

[INFO] Surefire report directory: D:\Anliven-Running\Zen\EclipseProjects\TestMaven\target\surefire-reports

-------------------------------------------------------

 T E S T S

-------------------------------------------------------

Running anliven.testmaven01.HelloMavenTest

Run test!

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.065 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO]

[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ testmaven ---

[INFO] Building jar: D:\Anliven-Running\Zen\EclipseProjects\TestMaven\target\testmaven-0.0.1-SNAPSHOT.jar

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 3.437 s

[INFO] Finished at: 2017-10-20T11:13:48+08:00

[INFO] Final Memory: 16M/213M

[INFO] ------------------------------------------------------------------------

guowli@5CG450158J MINGW64 /d/Anliven-Running/Zen/EclipseProjects/TestMaven

$ ls -l target/

total 4

drwxr-xr-x 1 guowli 1049089    0 Oct 20 10:56 classes/

drwxr-xr-x 1 guowli 1049089    0 Oct 20 11:13 maven-archiver/

drwxr-xr-x 1 guowli 1049089    0 Oct 20 10:56 maven-status/

drwxr-xr-x 1 guowli 1049089    0 Oct 20 11:01 surefire-reports/

drwxr-xr-x 1 guowli 1049089    0 Oct 20 11:01 test-classes/

-rw-r--r-- 1 guowli 1049089 2151 Oct 20 11:13 testmaven-0.0.1-SNAPSHOT.jar

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