logging.md

Logging

While using JSQL, we must concern SQL and it's values' log. So, JSQL design an interface of cn.icuter.jsql.log.JSQLLogger for your own Logger. JSQL has implemented SLF4j/Log4j2/Log4j2/JUL, and auto detecting priority is SLF4j > Log4j2 > Log4j2 > JUL, as long as your library including slf4j.jar or other else supported by JSQL.

Note

JUL is the short name of java.util.logging.Logger, logback depends on SLF4j as well.

Configuration

Log4j2

log4j2.xml

<Loggers>
    <Logger name="cn.icuter.jsql" level="info" additivity="false">
        <AppenderRef ref="Console"/>
    </Logger>
    ...
</Loggers>

Log4j

log4j.properties

log4j.logger.cn.icuter.jsql=INFO

logging.properties

cn.icuter.jsql.level=INFO

Custom Logger

Define a CustomLogger class which extends JDKLogger, maybe Log4jLogger, Log4j2Logger or SLF4jLogger.

public class CustomLogger extends JDKLogger {

    @Override
    public void init(Class<?> aClass) {
        logger = (Logger) Main.LOGGER;
    }
}

Configure your custom Logger

static {
    Logs.setLogger(CustomLogger.class);
}