以前就是在app.js 直接用，今天把它抽出来了。
log4js.json
{
"appenders":
[
{
"type":"console",
"category":"console"
},
{
"category":"log_file",
"type": "file",
"filename": "./logs/log_file/file.log",
"maxLogSize": 104800,
"backups": 100,
"category": "normal"
},
{
"category":"log_date",
"type": "dateFile",
"filename": "./logs/log_date/date",
"alwaysIncludePattern": true,
"pattern": "-yyyy-MM-dd-hh.log",
"category": "normal"
}
],
"replaceConsole": true
}
使用：
var log4js_config = require("./config/log4js.json");
log4js.configure(log4js_config);
var logger = log4js.getLogger('normal');
logger.setLevel('INFO');
app.use(log4js.connectLogger(logger, {level:log4js.levels.INFO}));