Use the GFC log framework to record the abnormalities and error information in the Java class library

Use the GFC log framework to record the abnormalities and error information in the Java class library Introduction: When developing the Java class library, abnormalities and errors are very important for developers.Abnormal and error information can help developers identify the problem and deal with them accordingly.The GFC log framework is a commonly used Java log framework. It provides a set of simple and easy -to -use APIs to facilitate developers to record abnormal and error information.This article will introduce how to use the GFC log framework to record the abnormalities and error information in the Java class library. step: 1. Import the GFC log framework First, we need to import the relevant dependencies of the GFC log framework in the project.You can add the following dependencies through building tools such as Maven or Gradle: Maven: <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.32</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.32</version> </dependency> Gradle: groovy implementation 'org.slf4j:slf4j-api:1.7.32' implementation 'org.slf4j:slf4j-log4j12:1.7.32' 2. Configure log framework Next, we need to configure the relevant parameters of the GFC log framework.You can create a `log4j.properties` file and add the following configuration: properties log4j.rootLogger=INFO, CONSOLE log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout log4j.appender.CONSOLE.layout.ConversionPattern=%d [%t] %-5p %c - %m%n The configuration outputs the log to the console and sets up the format of the log. 3. Use GFC log framework to record abnormal and error information Now, we can use the GFC log framework in the Java library to record abnormalities and error messages.First, the relevant class of the GFC log framework needs to be introduced in the class: import org.slf4j.Logger; import org.slf4j.LoggerFactory; Then, a log recorder is declared among the static members of the class: private static final Logger logger = LoggerFactory.getLogger(YourClass.class); Please replace the `Yourclass` to the category name you want to record. Next, we can use a log recorder to record abnormalities and error messages.For example, we have to record the exception in a method: try { // Your code logic } catch (Exception e) { logger.error ("Out abnormality:", e); } Use the `logger.error () method to record the abnormal information into the log.Through the `E` parameter, you can print detailed abnormal stack information. Similarly, we can also use the `logger.error () method to record other types of error messages. logger.error ("Error: error description"); Summarize: By using the GFC log framework, we can simply and conveniently record the abnormalities and errors in the Java class library.First of all, we need to introduce the relevant dependencies of the GFC log framework and configure the log framework.Then, we can use the API of the GFC log framework to record abnormalities and errors.This will help developers to quickly locate problems and deal with them accordingly. I hope this article will understand how to use the GFC log framework to record the abnormalities and error information in the Java class library!