如何正确使用SNAPSHOTS与EAR和EJB的依赖关系 [英] How do I correctly use SNAPSHOTS dependencies with EARs and EJBs

问题描述

我正在尝试在EAR中构建EJB。我的EJB依赖于SNAPSHOTS。因此，当我构建EAR时，我的结构如下所示：

I am trying to build an EJB in an EAR. My EJB has dependencies on SNAPSHOTS. So when I build the EAR my structure looks like this:

my-ear-1.0.0-SNAPSHOT.ear
 + META-INF  
  - application.xml
  - MANIFEST.MF
 - my-ejb-1.0.0-SNAPSHOT.jar
 - third-party-lib-1.0.0-SNAPSHOT.jar

然而，当使用maven-ejb-plugin生成其MANIFEST.MF时：

However, when using the maven-ejb-plugin to generate its MANIFEST.MF:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-ejb-plugin</artifactId>
  <version>2.3</version>
  <configuration>
    <archive>
      <manifest>
        <addClasspath>true</addClasspath>
      </manifest>
    </archive>
  </configuration>
</plugin>

我遇到的问题是MANIFEST.MF列出了SNAPSHOT在Nexus中的显示方式而不是maven-ear-plugin在构建耳朵时如何命名它。

The problem I have, is the MANIFEST.MF lists the SNAPSHOT as how it appears in Nexus which is not how the maven-ear-plugin named it when building the ear.

Manifest-Version: 1.0
Build-Jdk: 1.6.0_25
Class-Path: third-party-lib-1.0.0-20121026.140152-21.jar

所以我当然得到 ClassNotFoundException ，因为EJB类路径正在寻找一个不存在的jar文件。

So of course I'm getting ClassNotFoundException s because the EJBs classpath is looking for a jar file that doesn't exist.

基本上我需要知道：

1. 我如何获得maven -ear-plugin在没有-SNAPSHOT格式的情况下将罐子插入耳中？


2. 如何让maven-ejb-plugin在MANIFEST.MF中使用-SNAPSHOT格式？

推荐答案

通过查看maven archiver文档，我找到了解决问题的方法。 a href =http://maven.apache.org/shared/maven-archiver/examples/classpath.html#aSnapshot\"rel =noreferrer> Maven Archiver - 处理快照。

I found the solution to my problem by looking through the maven archiver documentation at Maven Archiver - Handling Snapshots.

我只是需要配置我的maven-ejb-plugin，以便它不使用唯一版本：

I just needed to configure my maven-ejb-plugin so that it didn't use "unique versions":

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-ejb-plugin</artifactId>
            <version>2.3</version>
            <configuration>
                <archive>
                    <manifest>
                        <addClasspath>true</addClasspath>                           
                        <useUniqueVersions>false</useUniqueVersions>
                    </manifest>
                </archive>
            </configuration>
        </plugin>

下次RTFM更接近我猜：）

RTFM closer next time I guess :)

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