Java Maven 更新 POM 中的依赖项

Maven update dependencies in POM

提问by javamonkey79

Are there any preexisting Maven plugins or commands to update the dependencies in the POM? Example: (if this was in my POM)

是否有任何预先存在的 Maven 插件或命令来更新 POM 中的依赖项？示例：（如果这是在我的 POM 中）

<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>2.3</version>
</dependency> 

Is there a command or plugin I can run to get it to update the dependency to:

是否有我可以运行的命令或插件来获取它以将依赖项更新为：

<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>2.4</version>
</dependency> 

采纳答案by Dominic Mitchell

Try the maven-versions-plugin, in particular, the versions:use-latest-versionsgoal.

试试maven-versions-plugin，特别是versions:use-latest-versions目标。

回答by Robert Munteanu

No there is isn't. And be happy there is not. How would such a tool know how to upgrade your dependencies?

不，没有。并高兴的是没有。这样的工具如何知道如何升级您的依赖项？

With breakages possibly happening between minor versions, it would be a disaster waiting to happen.

由于次要版本之间可能发生损坏，这将是一场等待发生的灾难。

---

---

But you can always write your own Mojofor that.

但是您始终可以为此编写自己的 Mojo。

• get latest version of dependency from Maven repository
• compare with version from pom.xml
• rewrite pom.xml
• run mvn test
• ?
• Profit!

• 从 Maven 存储库获取最新版本的依赖项
• 与 pom.xml 中的版本进行比较
• 重写 pom.xml
• 跑 mvn test
• ?
• 利润！

回答by rperez

you can use dependencyManagement in your parent pom:

你可以在你的父 pom 中使用 dependencyManagement：

<dependencyManagement>
      <dependencies>
          <dependency>
              <groupId>commons-lang</groupId>
              <artifactId>commons-lang</artifactId>
              <version>2.4</version>
          </dependency>
      </dependencies>
</dependencyManagement>

this way, you need to change the version only once in the parent POM

这样，您只需在父 POM 中更改一次版本

回答by piepera

I prefer using mvn versions:display-dependency-updates; this generates a report of which dependencies can be upgraded, but lets you modify the POMs yourself. There's also a display-plugin-updatescommand for plugins.

我更喜欢使用mvn versions:display-dependency-updates；这会生成一份报告，说明哪些依赖项可以升级，但允许您自己修改 POM。还有一个用于插件的display-plugin-updates命令。

回答by Scott Izu

Personally, I think there should be an additional parameter in maven that would allow you to add to the pom.xml.

就个人而言，我认为 maven 中应该有一个额外的参数可以让你添加到 pom.xml 中。

See post at http://maven.40175.n5.nabble.com/Is-there-any-maven-plugin-to-add-dependency-to-existing-pom-xml-td2839092.html#a5772853

请参阅http://maven.40175.n5.nabble.com/Is-there-any-maven-plugin-to-add-dependency-to-existing-pom-xml-td2839092.html#a5772853 上的帖子

Here, you can add the following to your pom.xml file:

在这里，您可以将以下内容添加到 pom.xml 文件中：

<project>
  ...
  <build>
    ...
    <plugins>
      ...
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>versions-maven-plugin</artifactId>
        <version>2.1</version>
      </plugin>
      ...
    </plugins>
    ...
  </build>
  ...
</project>

...

...

Then backup your pom.xml file via version set command:

然后通过 version set 命令备份你的 pom.xml 文件：

mvn versions:set -DnewVersion=9.9.9

Run latest versions:

运行最新版本：

mvn versions:use-latest-versions

and diff the pom.xml files, pom.xml and pom.xml.versionsBackup

并区分 pom.xml 文件，pom.xml 和 pom.xml.versionsBackup