log4j2动态修改日志级别
有时候需要在线上环境排查问题，而一般情况下为了减少日志的输出，设置的日志级别较高，此时就需要一些方法来动态的调低日志级别排查问题。在log4j2中提供了Configurator来修改日志配置
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@GetMapping(value = "/getLogLevel")
@ResponseBody
public String getLogLevel(@RequestParam(value = "package") String packageName) {
LOGGER.info("getLoglevel packageName is {}", packageName);
LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
return ctx.getLogger(packageName).getLevel().name();
}
@PostMapping(value = "/setLoglevel")
@ResponseBody
public String setLoglevel(@RequestParam("loglevel") String logLevel, @RequestParam(value = "package") String packageName) {
LOGGER.info("setLoglevel packageName is {},logLevel is {}", packageName, logLevel);
try {
Configurator.setLevel(packageName, Level.valueOf(logLevel));
} catch (Exception e) {
LOGGER.error("设置失败 setLoglevel packageName is {},logLevel is {}", packageName, logLevel, e);
return "fail";
}
return "success";
}
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