uni app 的app 端 写入指定目录文件夹。并自动生成当前日期的日志文件。删除十日前的日志文件

其中 writefile.js 代码如下

const {default: logger
} = require("./logger")var name
var url
var params
var method
var resfunction setlog(name, url, params, method) {this.name = namethis.url = urlthis.params = paramsthis.method = method}function setres(res) {this.res = res
}function savelog() {var logs = {操作: this.name,接口: this.url,参数: this.params,接口方式: this.method,返回: this.res}logger.log(JSON.stringify(logs))
}function removelog() {logger.removeFile(10)
}module.exports = {setlog: setlog,savelog: savelog,setres: setres,removelog: removelog
};

logger.js 文件代码如下

/**
* 标题：自定义日志存储在txt中
* 说明：
1. 自定义日志存储在txt中
2. 生成的文件存放在对应app目录下的 _doc/logs 文件夹中
··· js
// main.js 文件进行全局挂载
// 引入logger
import logger from  '@/components/libs/logger.js'
// 挂载logger
uni.$console = logger;
```
...
* 使用方法 *********************************************
* 1. 使用全局挂载的方式(和console)一致
* uni.$console.debug('日志信息');
* uni.$console.log('日志信息');
* uni.$console.info('日志信息');
* uni.$console.warn('日志信息');
* uni.$console.error('日志信息');* 2. 在普通js文件单独引入的方法
* import logger from '@/path/to/the/logger.js'
* logger.log('日志信息')
* logger.error('日志信息')*/// 日志存放的文件夹目录
const LOG_DIR = '_doc/logs';/*** 获取当前时间*/
function getDayStr() {var y, m, d, h, mm, s;var date = new Date();y = date.getFullYear();m = date.getMonth() + 1;d = date.getDate();m = m < 10 ? "0" + m : m;d = d < 10 ? "0" + d : d;// //console.log('日期:',y,m,d)// return '20220607' // 生成指定日期return '' + y + m + d;
}
/*** 获取当前时间，yyyy-mm-dd hh:mm:ss* 用于记录日志的时间信息*/
function getTimeStr() {var y, m, d, h, mm, s;var date = new Date();y = date.getFullYear();m = date.getMonth() + 1;d = date.getDate();h = date.getHours();mm = date.getMinutes();s = date.getSeconds();m = m < 10 ? "0" + m : m;d = d < 10 ? "0" + d : d;h = h < 10 ? "0" + h : h;mm = mm < 10 ? "0" + mm : mm;s = s < 10 ? "0" + s : s;var timeStr = y + "-" + m + "-" + d + " " + h + ":" + mm + ":" + s;return timeStr;
}
/*** 日志TXT的名称*/
function getLogFileName() {const txt = LOG_DIR + '/' + getDayStr() + '.txt';console.log('TXT文件名称:', txt)return txt;
}
/*** @param {Object} tag 标识* @param {Object} msg 空格*/
function writeToTxt(tag) {let msgs = '';for (var i = 1; i < arguments.length; i++) {const item = arguments[i];if (typeof(item) == 'string' ||typeof(item) == 'number' ||typeof(item) == 'boolean') {msgs = msgs + '\t' + item;} else {msgs = msgs + '\t' + JSON.stringify(item);}}let fileName = getLogFileName();// 获取当前时间let txt_msg = getTimeStr() + '\t[' + tag + ']\t' + msgs + '\n';if (tag == 'ERROR') {console.error(txt_msg);} else {// //console.log(txt_msg);}// #ifdef APP-PLUSplus.io.resolveLocalFileSystemURL(fileName, (fs) => {// //console.log(fs);});plus.io.requestFileSystem(plus.io.PRIVATE_DOC, (fs) => {fs.root.getFile(fileName, {create: true}, function(entry) {// 写入到本地entry.createWriter(function(writer) {writer.onwrite = function(e) {// console.log("Write data success!");console.log("写入本地日志 >>>> ", txt_msg);};writer.onerror = function(e) {console.eror('写入本地日志失败 >>>> ', JSON.stringify(e), txt_msg)}// Write data to the end of file.writer.seek(writer.length);writer.write(txt_msg);}, function(e) {console.log(e.message);});});}, function(e) {console.log("Request file system failed: " + JSON.stringify(e));});// #endif
}/*** 压缩所有的日志为zip*/
function zipLogDir(callback) {//console.log('开始压缩');// #ifdef APP-PLUSvar zipFile = "_doc/logs.zip";var targetPath = LOG_DIR;// 开始压缩文件console.log('开始压缩', targetPath, zipFile);plus.zip.compress(targetPath, zipFile,function(res) {console.log("开始压缩 Compress success!", res);if (callback) {callback({success: true,res,zipPath: zipFile});}},function(error) {console.error("开始压缩 Compress error!", error);if (callback) {callback({success: false,error});}});// #endif
}
/*** 删除多少天之前的日志文件*/
function removeFile(durationDay) {return new Promise((resolve, reject) => {if (!durationDay || durationDay <= 0) {durationDay = 10;}var dirPath = LOG_DIR;plus.io.resolveLocalFileSystemURL(dirPath, function(entry) {//读取这个目录对象var directoryReader = entry.createReader();// console.log(dirPath)//读取这个目录下的所有文件directoryReader.readEntries(function(entries) {console.log('日志文件数量', entries.length)//如果有才操作if (entries.length > 0) {let now = getDayStr();for (let file of entries) {// console.log(file.name);// 判断需要保留的日志let day = file.name.replace('.txt', '');// console.log(parseInt(day) + parseInt(durationDay) < parseInt(now));// console.log(parseInt(day));// console.log(parseInt(durationDay));// console.log(parseInt(day) + parseInt(durationDay));// console.log(parseInt(now));if (parseInt(day) + parseInt(durationDay) < parseInt(now)) {console.log('需要删除的日志是', file.name);try {file.remove(function() {console.error('删除日志成功', file.name);}, function(e) {console.error('删除日志失败', file.name, e);});} catch (e) {console.error('删除日志失败', file.name, e);}} else {console.log('保留的日志是', file.name);}} // for} // ifresolve();}, function(e) {console.log('读取文件失败：' + e.message)resolve();})}, function(e) {console.log('读取目录失败：' + e.message)resolve();})});
}/*** 自定义TXT日志*/
const logger = {/*** @param {Object} msg 日志信息的字符串信息*/debug: function() {writeToTxt('DEBUG', ...arguments);console.debug(...arguments);},log: function() {writeToTxt('LOG', ...arguments);console.log(...arguments);},info: function() {writeToTxt('INFO', ...arguments);console.info(...arguments);},warn: function() {writeToTxt('WARN', ...arguments);console.warn(...arguments);},error: function() {writeToTxt('ERROR', ...arguments);console.error(...arguments);},/*** @param {String} tag 日志信息的自定义信息*/tag: function(tag) {writeToTxt(tag, ...arguments);console.log(...arguments);},/*** @param {Object} msg 日志信息的字符串信息*/network: function() {writeToTxt('NETWORK', ...arguments);console.log(...arguments);},/*** @param {Object} msg 日志信息的字符串信息*/logIpExchange: function(msg) {writeToTxt('IpExchange', ...arguments);console.log(...arguments);},/*** 压缩成zip，并返回路径* @param {Object} callback*/zipLogDir,/*** 删除多少${durationDay}天之前的日志文件* @param {Object} durationDay 默认是10天*/removeFile,/*** 主要使用方法。先移除* @param {Object} callback*/removeFileAndZipLogDir(callback) {removeFile().then(() => {zipLogDir(callback);});}
}export default logger;

代码中参考了其他大佬的部分代码。具体时谁的忘了。见谅

使用

import writeFile from '../../utils/writeFile'

    writeFile.setlog("登录按钮点击", url, params, "post")

    res 为接口返回值

    writeFile.setres(res)
writeFile.savelog()