在不设置MAVEN_OPTS环境变量的情况下指定Maven内存参数

I was wondering if it is possible to specify Maven memory boundaries with a syntax similar to:

我想知道是否可以使用类似于以下语法指定Maven内存边界：

mvn -Dtest=FooTest -DXmx=512M clean test

I tried a couple of variations till now, unsuccessfully.
I am aware of MAVEN_OPTS environment variable, but I would like to avoid that.

到目前为止，我尝试了几种变化，但没有成功。我知道MAVEN_OPTS环境变量，但我想避免这种情况。

Related to the above question, it would be nice to know if there is the possibility to specify the memory behavior of the surefire plugin in a similar manner, so that it forks the jvm using the overridden memory amount (eventually overriding the <argLine> parameter in the pom plugin configuration, if present)

与上述问题相关，很高兴知道是否有可能以类似的方式指定surefire插件的内存行为，以便它使用重写的内存量分配jvm（最终覆盖参数）在pom插件配置中，如果存在）

3 个解决方案

#1

You can configure the surefire-plugin to use more memory. Take a look on Strange Maven out of memory error.

您可以配置surefire-plugin以使用更多内存。看看Strange Maven内存不足错误。

Update: If you would like to set the parameter from command-line take a look on {{mvn.bat}} (or {{mvn}} shell script) in your maven installation directory. It uses with additional options specified in command line.

更新：如果您想从命令行设置参数，请查看您的maven安装目录中的{{mvn.bat}}（或{{mvn}} shell脚本）。它使用命令行中指定的其他选项。

Next possibility is to set surefire-plugin and use properties specified in command-line, e.g. mvn ... -Dram=512

下一种可能性是设置surefire-plugin并使用命令行中指定的属性，例如mvn ... -Dram = 512

and

和

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.5</version>
    <configuration>
        <forkMode>once</forkMode>
        <argLine>-Xms${ram}m -Xmx${ram}m</argLine>
    </configuration>
</plugin>

#2

To specify the max memory (not via MAVEN_OPTS as originally requested) you can do the following:

要指定最大内存（不是通过最初请求的MAVEN_OPTS），您可以执行以下操作：

mvn clean install -DargLine="-Xmx1524m"

#3

Since Maven 3.3.1 a default can also be specified in ${maven.projectBasedir}/.mvn/jvm.config

从Maven 3.3.1开始，也可以在$ {maven.projectBasedir} /。mvn / jvm.config中指定默认值。

It is documented here: https://maven.apache.org/docs/3.3.1/release-notes.html#JVM_and_Command_Line_Options

它在此处记录：https：//maven.apache.org/docs/3.3.1/release-notes.html#JVM_and_Command_Line_Options

#1