Common problems and solutions of the Scala Logging framework

Scala Logging is a popular log framework that is used to implement log records in the SCALA application.It provides a simple and flexible way to manage and record the log of applications, but may encounter some common problems during use.Here are some common problems and their solutions: 1. Q: How to integrate SCALA Logging in the SCALA project? A: First, add the following dependencies to the project's build.sbt file: librarydependencies += "com.typesafe.scala-logging" %% "scala-logging" % " %" Then, use the following Import statement to introduce scala logging: import com.typesafe.scalalogging.Logger 2. Q: How to create a logger instance in the code? A: You can use the following ways to create a logger instance: val logger: Logger = Logger(getClass) In this example, the Logger instance will automatically use the name of the current class as the name of the log recorder. 3. Q: How to include variables or place occupies in the log output? A: Scala Logging uses the SLF4J's placement syntax.When output logs, you can use a placeholder to reference the value of the variable.For example: val name = "John" logger.info("Hello, {}!", name) The output will be: Hello, John! 4. Q: How to contain abnormal information in the log output? A: You can use a placeholder `{}` to reference the abnormal information.For example: try { // Some code that may throw an exception } catch { Case E: Exception => Logger.error ("" Occurred abnormality: {} ", e) } In this example, abnormal information will be replaced correctly to `{}`. 5. q: How to configure the log level? A: Scala Logging follows the log level configuration of SLF4J.You can add the following configuration in the project's Application.conf file: logger.package.name = log level Among them, `Package.name` is to set the logo name of the log level. 6. Q: How to output the log into the file? A: You can use logback or other supported logs to output the log output to the file.Add the following configuration to the project's Application.conf file: logger.package.name = log level logger.package.name.file = "File Name" `File name` is the name and path of the file of the file to output the log. The above are some common Scala Logging issues and their solutions.Using Scala Logging can easily add a log function to the SCALA application, making debugging and wrong tracking easier and convenient.