Use the "Logger" framework in the Java library for abnormal processing

In the Java class library, abnormal treatment is a very critical aspect.By using the "Logger" framework, we can better track and record abnormalities, thereby helping us diagnose and solve potential problems. Logger is a log frame that comes with Java. It provides a flexible method to generate logs, including abnormal logs.Using Logger in anomalous processing allows us to more easily locate and may have problems in the Debug code, and better understand the execution process of the code. First, we need to import java.util.logging.logger class: import java.util.logging.Level; import java.util.logging.Logger; Then, we can create a logger object in the code: private static final Logger LOGGER = Logger.getLogger(YourClass.class.getName()); In the code above, "Yourclass" should be replaced with your name.The name of our class is used as the name of Logger, so as to better target the source of the log. Next, we can use Logger in the abnormal processing code block to record the exception: try { // May produce an abnormal code } catch (Exception e) { Logger.log (level.severe, "Occasion:" + E.getMessage (), E); } In the above code, we use the logger log method to record the exception.We set the log level to Severe, indicating that this is a serious level error.We also conveyed abnormal messages and abnormal objects itself. In addition, Logger also provides several other log levels, which can be selected as needed.For example, FINE represents details of details, Info represents general information, warning means warning, etc. The advantage of using Logger is that we can configure the output method of logs according to actual needs, such as output to files, databases or consoles.We can also set the level of the log according to the need, and only record the logs above the critical level. In order to better use the logger, make sure to clean up abnormalities in time in the code and provide meaningful error messages. To sum up, using the Logger framework in the Java library for abnormal processing can provide better code readability and maintenance.It helps us to track and record abnormalities better, thereby quickly diagnosing and solving potential problems.