Shulou(Shulou.com)05/31 Report--

This article introduces you how to slim down the deployment of SpringBoot, the content is very detailed, interested friends can refer to, hope to help you.

I. Preface

Although the deployment of SpringBoot is simple, if the server is deployed on the company's private network, the speed is OK, but if it is deployed on a public network (Ali Cloud and other cloud servers), it is a headache: the compiled Jar package is very large, and if many open source components (SpringCloud, etc.) are introduced into the project, it will be even bigger.

At this time, if you want to make some fine-tuning to the online project, it will be very painful.

2. Jar bag before slimming

When Tomcat deploys the Web project, it can be updated incrementally, and so can SpringBoot.

Among the Jar packages compiled by SpringBoot, the ones with large disk footprint are some externally dependent libraries (jar packages), such as:

Enter the root directory of the project, execute the mvn clean install command, and open the resulting Jar package with compressed software. The directory structure is as follows:

The entire Jar package is 18.18 MB, but BOOT-INF/lib takes up nearly 18 MB:

III. Solutions

Step 1: compile the JAR package normally and extract the lib folder

The POM file is as follows:

Enter the project root directory and execute the command: mvn clean install

Extract the compiled Jar package and copy the lib folder in the BOOT-INF directory to the target path

Step 2: modify the pom.xml configuration to compile the Jar package without the lib folder

Once the configuration is complete, execute the compilation again: mvn clean install

The resulting Jar package is significantly smaller, as shown below, and the external jar package will no longer be introduced:

Step 3: run the compiled Jar package

Put the lib folder extracted from step 1 and the jar package compiled in step 2 in the same directory, and run the following command:

Or enter the command in maven to export the jar package you need.

Remarks

Change / path/to/ to the actual path.

-Dloader.path=lib folder path

The final directory file structure is:

Description

1. Usually, after the architecture of an engineering project is determined, the jar package introduced will basically remain unchanged, and most of the changes will be business logic.

2. Later, if you need to change the business logic, you only need to compile the project lightly, which greatly improves the efficiency of project deployment.

On how to carry out the slimming deployment of SpringBoot to share here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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