节点温斯顿不能支持多个文件传输？

我想在一个文件中显示错误日志，在另一个文件中显示所有日志。 为此，我编写了两个文件传输，在编译时出现以下错误：

'use strict'; var winston = require('winston'), config = require('./config'); var logger = new (winston.Logger)({ transports: [ new (winston.transports.Console)({level:'debug',handleExceptions: true,prettyPrint: true,silent:false,timestamp: true,colorize: true,json: false}), new (winston.transports.File)({ filename: './server/logs/bv_common.log',level:'debug',maxsize: 1024000,maxFiles: 10, handleExceptions: true,json: false}), new (winston.transports.File)({ filename: './server/logs/bv_error.log',level:'debug',maxsize: 1024000,maxFiles: 10, handleExceptions: true,json: false,level:'error'}) ] }); module.exports = logger; 

结果：

  [ 'Error: Transport already attached: file', 

Answer 1

 var logger = new (winston.Logger)({ exitOnError: false, //don't crash on exception transports: [ new (winston.transports.Console)({level:'debug',handleExceptions: true,prettyPrint: true,silent:false,timestamp: true,colorize: true,json: false}), new (winston.transports.File)({ filename: './server/logs/' + config.appname +'_common.log',name:'file.all',level:'debug',maxsize: 1024000,maxFiles: 10, handleExceptions: true,json: false}), new (winston.transports.File)({ filename: './server/logs/' + config.appname +'_error.log',name:'file.error',level:'error',maxsize: 1024000,maxFiles: 10, handleExceptions: true,json: false}) ] }); 

上面的代码，尤其是与共享传输的名称参数，我们可以使用多个文件传输logging器。

Answer 2

你得到这个错误，因为你没有提供一个'名字'属性到你的文件传输。