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Description: :rainbow: Java 程序员进阶之路，本专栏风趣幽默、通俗易懂，对 Java 爱好者极度友好和舒适😄，内容包括 Java 基础、Java 并发编程、Java 虚拟机、Java 面试题、Java 企业级开发（Git、SSM、Spring Boot）、计算机基础知识（操作系统、计组、计网、数据结构与算法）等核心知识点。如果本专栏为你提供了帮助，请给予支持(star一下，或者推荐给你的朋友)！ - toBeBetterJavaer/docs/src/gongju/log4j.md at master · smart68668/toBeBetterJavaer

Open Graph Description: :rainbow: Java 程序员进阶之路，本专栏风趣幽默、通俗易懂，对 Java 爱好者极度友好和舒适😄，内容包括 Java 基础、Java 并发编程、Java 虚拟机、Java 面试题、Java 企业级开发（Git、SSM、Spring Boot）、计算机基础知识（操作系统、计组、计网、数据结构与算法）等核心知识点。如果本专栏为你提供了帮助，请给予支持(star一下，或者推荐给你的朋友...

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https://github.com/smart68668/toBeBetterJavaer/blob/master/docs/src/gongju/log4j.md#01为什么需要在-java-中打印日志
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