Shulou(Shulou.com)06/03 Report--

Maven is an Apache open source project management tool, based on the project object model POM (Project Object Model), defines configuration information in a pom.xml file, manages project construction, and provides other advanced management tools.

When introducing dependent libraries in pom.xml, you need to specify groupId, artifactId, and version, such as introducing fastjson:

Com.alibaba

Fastjson

1.2.60

Starting with the fix and version upgrade of a fastjson security vulnerability, the maven library 1.2.60 was uploaded and released on September 4, 1919, fixing the problem that may cause OOM when the string contains x escape characters, and adding the AutoType blacklist. Due to the serious harm of security vulnerabilities, officials recommend upgrading to 1.2.60 and newer version.

So can we configure to use the latest version automatically when a new version of fastjson is released? The answer is yes, let's take a look at the advanced writing of the version in the dependency message when configuring pom.xml, much like a mathematical formula:

First of all, it is clear that because the compatibility and stability of the JSON protocol and the fastjson library are very good, you can consider upgrading to the latest version automatically. If the configuration in pom.xml is written like this, fastjson with version 1.2.60 or greater will be automatically referenced:

Com.alibaba

Fastjson

[1.2.60,)

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