log4j支持JSON格式吗

log4j是一种流行的Java日志记录工具，它提供了强大的日志记录功能和灵活的配置选项。在log4j的最新版本中，它确实支持JSON格式。使用JSON格式的日志可以使日志的结构更加清晰和易读，方便日志的分析和处理。下面将介绍log4j支持JSON格式的具体方法，并提供一个案例代码来演示其用法。

xml
    
        org.apache.logging.log4j
        log4j-api
        2.14.1
    
    
        org.apache.logging.log4j
        log4j-core
        2.14.1
    

xml
    
        
            
        
    
    
        
            
        
    

java
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class Log4jJsonExample {
    private static final Logger logger = LogManager.getLogger(Log4jJsonExample.class);
    public static void main(String[] args) {
        logger.info("This is a JSON log message");
        logger.error("Something went wrong", new RuntimeException("Error"));
    }
}

{"timeMillis":1642293845934,"thread":"main","level":"INFO","loggerName":"com.example.Log4jJsonExample","message":"This is a JSON log message","endOfBatch":false,"loggerFqcn":"org.apache.logging.log4j.spi.AbstractLogger","contextMap":{},"contextStack":[],"threadId":1,"threadPriority":5}
{"timeMillis":1642293845938,"thread":"main","level":"ERROR","loggerName":"com.example.Log4jJsonExample","message":"Something went wrong","thrown":{"commonElementCount":0,"localizedMessage":"Error","message":"Error","name":"java.lang.RuntimeException","extendedStackTrace":[{"class":"com.example.Log4jJsonExample.main(Log4jJsonExample.java:10)"}]},"endOfBatch":false,"loggerFqcn":"org.apache.logging.log4j.spi.AbstractLogger","contextMap":{},"contextStack":[],"threadId":1,"threadPriority":5}