셈플코드
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | var log4js = require("log4js");/** * PatternLayout * Format for specifiers is %[padding].[truncation][field]{[format]} * e.g. %5.10p - left pad the log level by 5 characters, up to a max of 10 * Fields can be any of: * - %r time in toLocaleTimeString format * - %p log level * - %c log category * - %h hostname * - %m log data * - %d date in various formats * - %% % * - %n newline * - %x{<tokenname>} add dynamic tokens to your log. Tokens are specified in the tokens parameter * You can use %[ and %] to define a colored block. * * Tokens are specified as simple key:value objects. * The key represents the token name whereas the value can be a string or function * which is called to extract the value to put in the log message. If token is not * found, it doesn't replace the field. * * A sample token would be: { "pid" : function() { return process.pid; } } * * Takes a pattern string, array of tokens and returns a layout function. * @param {String} Log format pattern String * @param {object} map object of different tokens * @return {Function} * @author Stephan Strittmatter * @author Jan Schmidle */log4js.configure({ appenders:[ { type : "console", layout: { type : "pattern", pattern:"%d %x{pid} %0.1p %c - %m", tokens :{ "pid" : function() { return process.pid; } } } } ]}); log4js.replaceConsole();console.log("test %s", "vv"); |
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