Maven快照不起作用我不認為

Question

我正在嘗試遵循本教程： http ： //www.tutorialspoint.com/maven/maven_snapshots.htm

我想我遇到了這個問題。 當我在myApp目錄中運行項目的pom.xml ，我收到以下輸出：

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building myApp 1
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for com.companyname.bank:consumerBanking:jar:1.0-SNAPSHOT is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ myApp ---
[INFO] Deleting C:\Users\name\Desktop\MavenFoo1\myApp\target
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ myApp ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\name\Desktop\MavenFoo1\myApp\src\main\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ myApp ---
[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:\Users\name\Desktop\MavenFoo1\myApp\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ myApp ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\name\Desktop\MavenFoo1\myApp\src\test\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ myApp ---
[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:\Users\name\Desktop\MavenFoo1\myApp\target\test-classes
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ myApp ---
[INFO] Surefire report directory: C:\Users\name\Desktop\MavenFoo1\myApp\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.companyname.appid.AppTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec

Results :

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

[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ myApp ---
[INFO] Building jar: C:\Users\name\Desktop\MavenFoo1\myApp\target\myApp-1.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.141 s
[INFO] Finished at: 2015-02-25T15:29:16-06:00
[INFO] Final Memory: 10M/26M
[INFO] ------------------------------------------------------------------------

直接在[INFO] Building myApp 1下面的WARNING消息[INFO] Building myApp 1就是我認為myApp pom.xml沒有成功抓取它在pom.xml中調用的其他模塊的最新SNAPSHOT。

SNAPSHOT功能應該允許另一個模塊為第一個模塊所依賴的不同模塊獲取最新版本的構建。

下面是第一個項目myApp pom.xml ，它取決於另一個項目的最新版本。

<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.companyname.appid</groupId>
  <artifactId>myApp</artifactId>
  <packaging>jar</packaging>
  <version>1</version>
  <name>myApp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>com.companyname.bank</groupId>
      <artifactId>consumerBanking</artifactId>
      <version>1.0-SNAPSHOT</version>
      <scope>test</scope> 

    </dependency>

  </dependencies>
</project>

現在，下面一個會發現pom.xml的consumerBanking ，對於以前的pom.xml項目myApp依賴。

<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>com.companyname.bank</groupId>
  <artifactId>consumerBanking</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>consumerBanking</name>
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

    <dependency>
       <groupId>c3p0-0.9.1.1</groupId>
       <artifactId>c3p0-0.9.1.1</artifactId>
       <scope>system</scope>
       <version>1.0</version>
       <systemPath>${basedir}\src\lib\c3p0-0.9.1.1.jar</systemPath>
    </dependency>


  </dependencies>
</project>

有誰知道我收到警告的原因？ 這是否意味着SNAPSHOT功能無法正常工作？ 我指的是：

“POM com.companyname.bank:consumerBanking:jar:1.0-SNAPSHOT無效，傳遞依賴（如果有）將無法使用，啟用調試日志記錄以獲取更多詳細信息”

感謝您閱讀所有這些！

問候，

我

Answer 1

我想Maven認為你的依賴POM是無效的，因為這部分沒有意義：

<dependency>
   <groupId>c3p0-0.9.1.1</groupId>
   <artifactId>c3p0-0.9.1.1</artifactId>
   <scope>system</scope>
   <version>1.0</version>
   <systemPath>${basedir}\src\lib\c3p0-0.9.1.1.jar</systemPath>
</dependency>