Maven插件安装:安装文件错误 [英] maven plugin install:install-file error

问题描述

我使用install:install-file将jar安装到本地存储库.我的pom.xml编写如下:

I use install:install-file to install jar to my local repository.My pom.xml is written as follow:

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-install-plugin</artifactId>
<version>2.3.1</version>
<executions>
    <execution>
    <id>install-paho</id>
    <phase>generate-resources</phase>
    <goals>
        <goal>install-file</goal>
    </goals>
    <configuration>
        <file>${basedir}/lib/paho.jar</file>
        <groupId>org.eclipse</groupId>
        <artifactId>paho</artifactId>
        <version>1.0.0</version>
        <packaging>jar</packaging>
    </configuration>
    </execution>
</executions>
</plugin>

您会发现我将其绑定到阶段'generate-resources'.然后，我使用订单mvn eclipse:eclipse.它工作得很好，罐子已复制到我的本地存储库.但是当我使用订单mvn install:install-file时，我得到了错误:

You can find that I binding it to phase 'generate-resources'.And then,I use order mvn eclipse:eclipse.It works very well and the jar was copied to my local repository.But when I use order mvn install:install-file I got the error:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-install-plugin:2.3.1:install-file (default-cli) on project xxx: 
The parameters 'file' for goal org.apache.maven.plugins:maven-install-plugin:2.3.1:install-file are missing or invalid -> [Help 1]

使用mvn compile

[ERROR] Failed to execute goal on project android-engine: Could not resolve dependencies    for project com.youku.wireless:android-engine:jar:1.0-SNAPSHOT: Could not find artifact org.eclipse:paho:jar:1.0.0 in spring-milestone (http://maven.springframework.org/milestone) ->   [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1]     http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException

推荐答案

由于已将install:install-file目标绑定到generate-sources阶段，因此应运行mvn compile或mvn install等以使用定义的配置.

Since you have bound install:install-file goal to the generate-sources phase, you should run mvn compile or mvn install or such to use the defined configurations.

mvn eclipse:eclipse之所以有效，是因为maven在调用eclipse:eclipse之前先运行generate-sources阶段.

mvn eclipse:eclipse works because maven runs the generate-sources phase prior to invoking eclipse:eclipse.

编辑:通过注释，您似乎想在项目中使用本地可用的paho.jar，方法是先在generate-sources阶段将其安装到本地仓库中，然后将其用作项目中的dependency.

From the comments it looks like you want to use the locally available paho.jar in your project by first installing it to your local repo in the generate-sources phase and thereafter use it as a dependency in your project.

这行不通，因为maven在开始执行其生命周期目标之前先检查dependencies的可用性.

This is not going to work since maven checks for availability of dependencies before it starts executing its life-cycle goals.

您可以在pom上下文之外使用mvn install:install-file一次手动安装它.更好的是，您可以将其部署到repository manager，然后像其他任何依赖项一样对其进行访问.

You could manually install it one-time using mvn install:install-file outside the context of the pom. Better still you could deploy it to a repository manager and then access it like any other dependency.

但是，如果您仍然想沿着这条路走，另一种方法是使用提供了jar路径的system范围指定依赖项.请参考此.

However, if you still want to go down this path, an alternate approach would be to specify the dependency with a system scope providing the path of the jar. Refer to this.

<project>
  ...
  <dependencies>
    <dependency>
      <groupId>org.eclipse</groupId>
      <artifactId>paho</artifactId>
      <version>1.0.0/version>
      <scope>system</scope>
      <systemPath>${basedir}/lib/paho.jar</systemPath>
    </dependency>
  </dependencies>
  ...
</project>

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