为什么我会从 log4j 收到此警告？
我刚刚将下载的 jar 文件添加到我的外部库中。我需要对 apache.log4j 库进行任何配置吗？我应该怎么做才能停止初始化 log4j 系统？
log4j:WARN No appenders could be found for logger (FaceRecognition).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
I just added the jar file downloaded to my external library. Do I need to do any configuration for apache.log4j library? What should I do to stop initialize the log4j system?
log4j:WARN No appenders could be found for logger (FaceRecognition).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
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在 Java 中添加日志记录非常简单 请参阅此处。您需要在 log4j 类中设置正确的 log4j 属性文件及其初始化。请参阅我提到的链接。
Very Simple to add logging in Java See here. You need to set proper log4j properties file and its initialization in log4j class. See my mentioned link.
log4j jar 不在构建路径中或 log4j 属性文件不在构建路径中。尝试将 log4j jar 包含在它将起作用的构建路径中。我已将 log4j.jar 粘贴到 web-inf/lib 文件夹中。
The log4j jar is not in the build path or log4j properties file is not in the build path. try to include the log4j jar in the build path it will work. i have pasted the log4j.jar in the web-inf/lib folder.