nodejs整合log4js输出日志

引入log4js依赖,配置类如下:
const log4js = require('log4js');
log4js.configure({
    replaceConsole: true,
    pm2: true,
    appenders: {
        stdout: {//控制台输出
            type: 'console'
        },
        req: {  //请求转发日志
            type: 'dateFile',    //指定日志文件按时间打印
            filename: 'logs/reqlog/req',  //指定输出文件路径
            pattern: 'yyyy-MM-dd.log',
            alwaysIncludePattern: true
        },
        err: {  //错误日志
            type: 'dateFile',
            filename: 'logs/errlog/err',
            pattern: 'yyyy-MM-dd.log',
            alwaysIncludePattern: true
        },
        oth: {  //其他日志
            type: 'dateFile',
            filename: 'logs/othlog/oth',
            pattern: 'yyyy-MM-dd.log',
            alwaysIncludePattern: true
        }

    },
    categories: {
        //appenders:采用的appender,取appenders项,level:设置级别
        default: { appenders: ['stdout', 'req'], level: 'debug' },
        err: { appenders: ['stdout', 'err'], level: 'error' },
    }
});


exports.getLogger = function (name) {//name取categories项
    return log4js.getLogger(name || 'default')
};

//用来与express结合

exports.useLogger = function (app, logger) {
    app.use(log4js.connectLogger(logger || log4js.getLogger('default'), {

//自定义输出格式

        format: '[:remote-addr :method :url :status :response-timems][:referrer HTTP/:http-version :user-agent]'
    }))
};

使用日志:

const log4js = require('../../util/Log4J');

const logger = log4js.getLogger();
const errLog = log4js.getLogger('err');

打印debug级别的日志信息:
logger.info('req的值是:' + req);
打印error级别的日志信息:
errLog.error(e);

var emitterManager = require('./eventsManager.js').emitterManager;
const log4js = require('../util/Log4J');
const logger = log4js.getLogger();
const errLog = log4js.getLogger('err');

var request=require('request');
var url = require('url');

var io = function(io){
    var socketList = {};
    var userMap = {};
    var id = null;
    打印debug级别的日志信息:
    io.on('connection', function(socket){
        if(id == null) {
            id = socket.id;
        };
        logger.info(socket.id,'连接到了服务器');
        
        socket.broadcast.emit('eating', { hello: '果断走起呀！' });
      
        socket.on('chat message', function(msg){
          io.emit('chat message', msg);
        });
        socket.on("login", function(data){
          data.name = data.phone;
          socket.name = data.id;
          socketList[data.id] = id;
          data.autoOrder0 = 0;
          data.autoOrder1 = 0;
          data.sID = socket.id;
          userMap[data.id] = data;
          // socket.broadcast.emit("newUser", {id:data.id,name:data.name,time:date});
          socket.emit('loginSucess', socket.id,data);
          logger.info(data.name + "登录成功 data=", data);
        });
        socket.on("loginout", function(data){
          socket.disconnect(true);
          sendApiDisconnect(userMap[socket.name]);
          logger.info(userMap[socket.name].name + "退出登录 data=",data);
        });
        //用户离开
        socket.on('disconnect', function(reason){
            logger.info(socket.name,"断开了连接 data=",userMap[socket.name]);
            sendApiDisconnect(userMap[socket.name]);
        });

      });
      emitterManager.on("receivedMsg", function(data) {
        if( !data )return;
        logger.info(data.id,"收到api 信息receivedMsg data=",data.value);
        if( data.id ){
          if( userMap.hasOwnProperty(data.id) ){
              var sID = userMap[data.id].sID;
              if( io.sockets.connected[sID]){
                  // io.sockets.connected[sID].emit(data.action,data.value);
                  io.sockets.connected[sID].emit("api",data.value);
              }
          }
        }
    })
      emitterManager.on("autoOrder", function(data) {
        logger.info(data.id,"收到api 信息 autoOrder data=",data);
        //http://192.168.21.180:3000/autoOrder?id=111&action=1(0:卖，1：买)&state=0(0:停止，1:开始）
        if( !data )return;
        if( userMap.hasOwnProperty(data.id) ){
            userMap[data.id]['autoOrder'+data.action] = data.state;
        }
    })
}

function sendApiDisconnect(data){
  if( !data ) return;
  var url = '';
  if( data['autoOrder0'] == 1 ){
    url = 'http://192.168.21.168/ustd/public/trade/stopsell?bk=FJ*($$..456jk&uid=' + data.id;
    logger.info("调用api,通知服务器停止卖币stopsell，phone=",data.phone);
    var e=request({url:url,
    method:'GET',
    headers:{'Content-Type':'text/json' }
    },function(error,response,body){
      logger.info("调用api,通知服务器停止卖币stopsell，phone=",data.phone,'结果=', body);
    });
  }
  if( data['autoOrder1'] == 1 ){
    url = 'http://192.168.21.168/ustd/public/trade/stopgrab?bk=FJ*($$..456jk&uid=' + data.id;
    logger.info("调用api,通知服务器停止买币stopgrab，phone=",data.phone);
    var e=request({url:url,
    method:'GET',
    headers:{'Content-Type':'text/json' }
    },function(error,response,body){
      logger.info("调用api,通知服务器停止买币stopgrab，phone=",data.phone,'结果=', body);
    });
  }
}

module.exports.io = io;