How springboot passes in parameters from the command line

This article will explain in detail how springboot passes in parameters through the command line. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.

Method 1:

Java-jar xxx.jar aa bb cc

Three parameters are passed, which are aa,bb,cc

Obtain the parameters from the main method

Method 2:

Java-jar-Da1=aa-Db1=bb-Dc1=cc xxx.jar

Obtained by System.getProperty ("aa", "1");. As an environmental variable

Method 3:

Java-jar xxx.jar-a1=aa-b1=bb

It is written in springboot and can be obtained through @ Value ("${A1}").

Local run is specified in idea

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