How Java uses Graylog to record logs

Graylog is an open source log management system that can help users centrally record, search, and analyze a large amount of log data. It provides a web-based user interface that can monitor data in real-time and support the retrieval and analysis of log data through search, filtering, and alerts. Graylog also supports scalability and high availability, and can be clustered on multiple nodes. In Java, using Graylog to record logs can use Graylog GELF (Graylog Extended Log Format) as the log processor. GELF is a flexible log format that allows users to transfer log data to Graylog servers in a structured manner. The following are common methods and Java code examples for using Graylog to record logs: 1. Import Maven dependencies: <dependency> <groupId>org.graylog2</groupId> <artifactId>gelfclient</artifactId> <version>1.12.0</version> </dependency> 2. Create a GelfConfiguration object and configure the address and port of the Graylog server: GelfConfiguration config = new GelfConfiguration("graylog-server", 12201) .transport(GelfTransports.UDP); 3. Create a GelfConfiguration object and set other configuration options (optional): config.transport(GelfTransports.UDP) .queueSize(512) .connectTimeout(5000) .reconnectDelay(1000) .tcpNoDelay(true) .sendBufferSize(32768); 4. Create a GelfTransport object and connect to the Graylog server: GelfTransport transport = GelfTransports.create(config); transport.connect(); 5. Record Log: GelfMessageBuilder messageBuilder = new GelfMessageBuilder("This is a log message.") .level(GelfMessageLevel.WARNING) .additionalField("custom_field", "custom_value"); transport.send(messageBuilder.build()); 6. Close connection (optional): transport.close(); By following the above steps, you can use Graylog to record logs. You can adjust the configuration options and log content as needed. It should be noted that flexible use of log levels, custom fields, etc. can help better classify and analyze logs in Graylog. The above is the basic usage of Graylog, and for more advanced features, please refer to the official documentation and API documentation.