动态修改logback日志级别

package com.chinasofti.cloudeasy.api.web;

import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.LoggerContext;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;

@Api(tags = "动态修改日志级别")
@RequestMapping("api/v1/monitor")
@RestController
@Slf4j
public class LogController {

    /**
     * 修改项目日志输出级别
     * 
     * @param allLevel 全局日志级别
     * @param singleLevel 某个类日志级别
     * @param singlePath 需要单独设置日志输出级别的类的全限定名（例:com.chinasofti.cloudeasy.api.web.LogController）
     * @return
     */
    @ApiOperation(value = "changeLogLevel")
    @GetMapping("changeLevel")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "rootLevel",
                    value = "root,全局级别:ALL,TRACE,DEBUG,INFO,WARN,ERROR,OFF", required = false),
            @ApiImplicitParam(name = "singleLevel",
                    value = "单独设置类日志级别:ALL,TRACE,DEBUG,INFO,WARN,ERROR,OFF", required = false),
            @ApiImplicitParam(name = "singlePath",
                    value = "单独类路径:com.chinasofti.cloudeasy.api.web.LogController",
                    required = false)})
    public String changeLevel(String rootLevel, String singleLevel, String singlePath) {
        LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
        log.warn("set log rootLevel:{},singleLevel:{},singlePath:{}", rootLevel, singleLevel,
                singlePath);
        if (!StringUtils.isEmpty(rootLevel)) {
            // 设置全局日志级别
            ch.qos.logback.classic.Logger logger = loggerContext.getLogger("root");
            logger.setLevel(Level.toLevel(rootLevel));
        }

        if (!StringUtils.isEmpty(singleLevel)) {
            // 设置某个类日志级别-可以实现定向日志级别调整
            ch.qos.logback.classic.Logger vLogger = loggerContext.getLogger(singlePath);
            if (vLogger != null) {
                vLogger.setLevel(Level.toLevel(singleLevel));
            }
        }
        return "success";
    }
}