Maven教程 - 如何將您的項(xiàng)目安裝到Maven本地存儲(chǔ)庫(kù)

當(dāng)構(gòu)建軟件時(shí)，我們經(jīng)常需要?jiǎng)?chuàng)建一些庫(kù)來(lái)收集所有的函數(shù)和類在共同的一起，把編譯的庫(kù)文件建立路徑，使編譯器可以找到庫(kù)編譯代碼時(shí)。

在Java中，這通常意味著創(chuàng)建一個(gè)具有庫(kù)類的jar文件。

在Maven中，我們可以使用“mvn install"打包項(xiàng)目并自動(dòng)部署到本地存儲(chǔ)庫(kù)。

當(dāng)執(zhí)行“安裝"階段時(shí)，將執(zhí)行其之前的所有階段，例如“驗(yàn)證"，“編譯"，“測(cè)試"，“封裝"，“積分測(cè)試"，“驗(yàn)證"階段。 之后這些階段將執(zhí)行安裝階段。

mvn安裝示例

以下代碼顯示了從maven生成的POM文件。

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.java2s.ide</groupId>
  <artifactId>xmlFileEditor</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>xmlFileEditor</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

基于上面的pom.xml文件，當(dāng)執(zhí)行“mvn install"時(shí)，它會(huì)將項(xiàng)目打包到j(luò)ar文件中并復(fù)制到本地存儲(chǔ)庫(kù)。

它總是建議運(yùn)行“干凈"和“安裝"在一起，以便你總是部署最新的項(xiàng)目到本地存儲(chǔ)庫(kù)。

mvn clean install

上述命令生成以下結(jié)果。

c:\mvn_test\xmlFileEditor>mvn clean install
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building xmlFileEditor 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ xmlFileEditor ---
[INFO] Deleting c:\mvn_test\xmlFileEditor\target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ xmlFileEditor ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory c:\mvn_test\xmlFileEditor\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ xmlFileEditor ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 1 source file to c:\mvn_test\xmlFileEditor\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ xmlFileEditor ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory c:\mvn_test\xmlFileEditor\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ xmlFileEditor ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 3 source files to c:\mvn_test\xmlFileEditor\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ xmlFileEditor ---
[INFO] Surefire report directory: c:\mvn_test\xmlFileEditor\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.java2s.ide.AppTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec
Running com.java2s.ide.TestApp1
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec
Running com.java2s.ide.TestApp2
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 sec

Results :

Tests run: 3, Failures: 0, Errors: 0, Skipped: 0

[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ xmlFileEditor ---
[INFO] Building jar: c:\mvn_test\xmlFileEditor\target\xmlFileEditor-1.0-SNAPSHOT.jar
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ xmlFileEditor ---
[INFO] Installing c:\mvn_test\xmlFileEditor\target\xmlFileEditor-1.0-SNAPSHOT.jar to C:\Users\abc\.m2\repository\com\java2s\ide\xmlFileEditor\1.0-SNAPSHOT\xmlFileEditor-1.0-SNAPSHOT.jar
[INFO] Installing c:\mvn_test\xmlFileEditor\pom.xml to C:\Users\abc\.m2\repository\com\java2s\ide\xmlFileEditor\1.0-SNAPSHOT\xmlFileEditor-1.0-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.250 s
[INFO] Finished at: 2014-11-22T10:27:10-08:00
[INFO] Final Memory: 27M/369M
[INFO] ------------------------------------------------------------------------
c:\mvn_test\xmlFileEditor>

我們可以在我們的本地maven存儲(chǔ)庫(kù)中查看已安裝的jar文件。

mvn安裝示例...

將jar文件安裝到本地存儲(chǔ)庫(kù)之后我們通過(guò)在它們的pom.xml文件中聲明以下相關(guān)性標(biāo)記來(lái)訪問(wèn)我們部署的“jar"文件。

 

<dependency>
      <groupId>com.java2s.ide</groupId>
      <artifactId>xmlFileEditor</artifactId>
      <version>1.0-SNAPSHOT</version>
</dependency>