Java 指定主类 Spring-Boot 命令行
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Specify main class Spring-Boot command line
提问by etig
I use maven plugin to set the main class like this :
我使用 maven 插件来设置主类,如下所示:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.myapp.main.MainClass</mainClass>
</configuration>
</plugin>
But sometimes I want run my app with another main class. What is the command line arguments to do this?
但有时我想用另一个主类运行我的应用程序。执行此操作的命令行参数是什么?
java -jar myapp-1.0.jar ...
Thx
谢谢
采纳答案by Dave Syer
There's a launcher for that in Spring Boot already. You need to build the jar with that as the Main-Class (by setting the layout
in the build config).
Spring Boot 中已经有一个启动器。您需要将 jar 构建为 Main-Class (通过layout
在构建配置中设置)。
回答by Marcus A.
Following command will do the trick:
以下命令可以解决问题:
java -cp my-app.jar -Dloader.main=myApplicationClass org.springframework.boot.loader.PropertiesLauncher
回答by Andrew
Executing from Windows PowerShell I needed this format (with the quotes):
从 Windows PowerShell 执行我需要这种格式(带引号):
java -cp .\myjarfile.jar -D"loader.main=com.app.etc.FullyQualifiedMainClass" org.springframework.boot.loader.PropertiesLauncher
java -cp .\myjarfile.jar -D"loader.main=com.app.etc.FullyQualifiedMainClass" org.springframework.boot.loader.PropertiesLauncher
To clarify the accepted answer: You can directly modify the loader.main property in the jar's META-INF/MANIFEST.MF file, if you're ok with a more static solution.
澄清接受的答案:如果您对更静态的解决方案没有意见,您可以直接修改 jar 的 META-INF/MANIFEST.MF 文件中的 loader.main 属性。