uniapp 添加本地文件日志 并增加防抖（防止重复写入被覆盖）
作者：互联网
base64.js
//
// THIS FILE IS AUTOMATICALLY GENERATED! DO NOT EDIT BY HAND!
//
;(function(global, factory) {
typeof exports === 'object' && typeof module !== 'undefined'
? module.exports = factory()
: typeof define === 'function' && define.amd
? define(factory) :
// cf. https://github.com/dankogai/js-base64/issues/119
(function() {
// existing version for noConflict()
const _Base64 = global.Base64;
const gBase64 = factory();
gBase64.noConflict = () => {
global.Base64 = _Base64;
return gBase64;
};
if (global.Meteor) { // Meteor.js
Base64 = gBase64;
}
global.Base64 = gBase64;
})();
}((typeof self !== 'undefined' ? self
: typeof window !== 'undefined' ? window
: typeof global !== 'undefined' ? global
: this
), function() {
'use strict';
/**
* base64.ts
*
* Licensed under the BSD 3-Clause License.
* http://opensource.org/licenses/BSD-3-Clause
*
* References:
* http://en.wikipedia.org/wiki/Base64
*
* @author Dan Kogai (https://github.com/dankogai)
*/
const version = '3.6.0';
/**
* @deprecated use lowercase `version`.
*/
const VERSION = version;
const _hasatob = typeof atob === 'function';
const _hasbtoa = typeof btoa === 'function';
const _hasBuffer = typeof Buffer === 'function';
const _TD = typeof TextDecoder === 'function' ? new TextDecoder() : undefined;
const _TE = typeof TextEncoder === 'function' ? new TextEncoder() : undefined;
const b64ch = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
const b64chs = [...b64ch];
const b64tab = ((a) => {
let tab = {};
a.forEach((c, i) => tab[c] = i);
return tab;
})(b64chs);
const b64re = /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/;
const _fromCC = String.fromCharCode.bind(String);
const _U8Afrom = typeof Uint8Array.from === 'function'
? Uint8Array.from.bind(Uint8Array)
: (it, fn = (x) => x) => new Uint8Array(Array.prototype.slice.call(it, 0).map(fn));
const _mkUriSafe = (src) => src
.replace(/[+\/]/g, (m0) => m0 == '+' ? '-' : '_')
.replace(/=+$/m, '');
const _tidyB64 = (s) => s.replace(/[^A-Za-z0-9\+\/]/g, '');
/**
* polyfill version of `btoa`
*/
const btoaPolyfill = (bin) => {
// console.log('polyfilled');
let u32, c0, c1, c2, asc = '';
const pad = bin.length % 3;
for (let i = 0; i < bin.length;) {
if ((c0 = bin.charCodeAt(i++)) > 255 ||
(c1 = bin.charCodeAt(i++)) > 255 ||
(c2 = bin.charCodeAt(i++)) > 255)
throw new TypeError('invalid character found');
u32 = (c0 << 16) | (c1 << 8) | c2;
asc += b64chs[u32 >> 18 & 63]
+ b64chs[u32 >> 12 & 63]
+ b64chs[u32 >> 6 & 63]
+ b64chs[u32 & 63];
}
return pad ? asc.slice(0, pad - 3) + "===".substring(pad) : asc;
};
/**
* does what `window.btoa` of web browsers do.
* @param {String} bin binary string
* @returns {string} Base64-encoded string
*/
const _btoa = _hasbtoa ? (bin) => btoa(bin)
: _hasBuffer ? (bin) => Buffer.from(bin, 'binary').toString('base64')
: btoaPolyfill;
const _fromUint8Array = _hasBuffer
? (u8a) => Buffer.from(u8a).toString('base64')
: (u8a) => {
// cf. https://stackoverflow.com/questions/12710001/how-to-convert-uint8-array-to-base64-encoded-string/12713326#12713326
const maxargs = 0x1000;
let strs = [];
for (let i = 0, l = u8a.length; i < l; i += maxargs) {
strs.push(_fromCC.apply(null, u8a.subarray(i, i + maxargs)));
}
return _btoa(strs.join(''));
};
/**
* converts a Uint8Array to a Base64 string.
* @param {boolean} [urlsafe] URL-and-filename-safe a la RFC4648 §5
* @returns {string} Base64 string
*/
const fromUint8Array = (u8a, urlsafe = false) => urlsafe ? _mkUriSafe(_fromUint8Array(u8a)) : _fromUint8Array(u8a);
// This trick is found broken https://github.com/dankogai/js-base64/issues/130
// const utob = (src: string) => unescape(encodeURIComponent(src));
// reverting good old fationed regexp
const cb_utob = (c) => {
if (c.length < 2) {
var cc = c.charCodeAt(0);
return cc < 0x80 ? c
: cc < 0x800 ? (_fromCC(0xc0 | (cc >>> 6))
+ _fromCC(0x80 | (cc & 0x3f)))
: (_fromCC(0xe0 | ((cc >>> 12) & 0x0f))
+ _fromCC(0x80 | ((cc >>> 6) & 0x3f))
+ _fromCC(0x80 | (cc & 0x3f)));
}
else {
var cc = 0x10000
+ (c.charCodeAt(0) - 0xD800) * 0x400
+ (c.charCodeAt(1) - 0xDC00);
return (_fromCC(0xf0 | ((cc >>> 18) & 0x07))
+ _fromCC(0x80 | ((cc >>> 12) & 0x3f))
+ _fromCC(0x80 | ((cc >>> 6) & 0x3f))
+ _fromCC(0x80 | (cc & 0x3f)));
}
};
const re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
/**
* @deprecated should have been internal use only.
* @param {string} src UTF-8 string
* @returns {string} UTF-16 string
*/
const utob = (u) => u.replace(re_utob, cb_utob);
//
const _encode = _hasBuffer
? (s) => Buffer.from(s, 'utf8').toString('base64')
: _TE
? (s) => _fromUint8Array(_TE.encode(s))
: (s) => _btoa(utob(s));
/**
* converts a UTF-8-encoded string to a Base64 string.
* @param {boolean} [urlsafe] if `true` make the result URL-safe
* @returns {string} Base64 string
*/
const encode = (src, urlsafe = false) => urlsafe
? _mkUriSafe(_encode(src))
: _encode(src);
/**
* converts a UTF-8-encoded string to URL-safe Base64 RFC4648 §5.
* @returns {string} Base64 string
*/
const encodeURI = (src) => encode(src, true);
// This trick is found broken https://github.com/dankogai/js-base64/issues/130
// const btou = (src: string) => decodeURIComponent(escape(src));
// reverting good old fationed regexp
const re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;
const cb_btou = (cccc) => {
switch (cccc.length) {
case 4:
var cp = ((0x07 & cccc.charCodeAt(0)) << 18)
| ((0x3f & cccc.charCodeAt(1)) << 12)
| ((0x3f & cccc.charCodeAt(2)) << 6)
| (0x3f & cccc.charCodeAt(3)), offset = cp - 0x10000;
return (_fromCC((offset >>> 10) + 0xD800)
+ _fromCC((offset & 0x3FF) + 0xDC00));
case 3:
return _fromCC(((0x0f & cccc.charCodeAt(0)) << 12)
| ((0x3f & cccc.charCodeAt(1)) << 6)
| (0x3f & cccc.charCodeAt(2)));
default:
return _fromCC(((0x1f & cccc.charCodeAt(0)) << 6)
| (0x3f & cccc.charCodeAt(1)));
}
};
/**
* @deprecated should have been internal use only.
* @param {string} src UTF-16 string
* @returns {string} UTF-8 string
*/
const btou = (b) => b.replace(re_btou, cb_btou);
/**
* polyfill version of `atob`
*/
const atobPolyfill = (asc) => {
// console.log('polyfilled');
asc = asc.replace(/\s+/g, '');
if (!b64re.test(asc))
throw new TypeError('malformed base64.');
asc += '=='.slice(2 - (asc.length & 3));
let u24, bin = '', r1, r2;
for (let i = 0; i < asc.length;) {
u24 = b64tab[asc.charAt(i++)] << 18
| b64tab[asc.charAt(i++)] << 12
| (r1 = b64tab[asc.charAt(i++)]) << 6
| (r2 = b64tab[asc.charAt(i++)]);
bin += r1 === 64 ? _fromCC(u24 >> 16 & 255)
: r2 === 64 ? _fromCC(u24 >> 16 & 255, u24 >> 8 & 255)
: _fromCC(u24 >> 16 & 255, u24 >> 8 & 255, u24 & 255);
}
return bin;
};
/**
* does what `window.atob` of web browsers do.
* @param {String} asc Base64-encoded string
* @returns {string} binary string
*/
const _atob = _hasatob ? (asc) => atob(_tidyB64(asc))
: _hasBuffer ? (asc) => Buffer.from(asc, 'base64').toString('binary')
: atobPolyfill;
//
const _toUint8Array = _hasBuffer
? (a) => _U8Afrom(Buffer.from(a, 'base64'))
: (a) => _U8Afrom(_atob(a), c => c.charCodeAt(0));
/**
* converts a Base64 string to a Uint8Array.
*/
const toUint8Array = (a) => _toUint8Array(_unURI(a));
//
const _decode = _hasBuffer
? (a) => Buffer.from(a, 'base64').toString('utf8')
: _TD
? (a) => _TD.decode(_toUint8Array(a))
: (a) => btou(_atob(a));
const _unURI = (a) => _tidyB64(a.replace(/[-_]/g, (m0) => m0 == '-' ? '+' : '/'));
/**
* converts a Base64 string to a UTF-8 string.
* @param {String} src Base64 string. Both normal and URL-safe are supported
* @returns {string} UTF-8 string
*/
const decode = (src) => _decode(_unURI(src));
/**
* check if a value is a valid Base64 string
* @param {String} src a value to check
*/
const isValid = (src) => {
if (typeof src !== 'string')
return false;
const s = src.replace(/\s+/g, '').replace(/=+$/, '');
return !/[^\s0-9a-zA-Z\+/]/.test(s) || !/[^\s0-9a-zA-Z\-_]/.test(s);
};
//
const _noEnum = (v) => {
return {
value: v, enumerable: false, writable: true, configurable: true
};
};
/**
* extend String.prototype with relevant methods
*/
const extendString = function () {
const _add = (name, body) => Object.defineProperty(String.prototype, name, _noEnum(body));
_add('fromBase64', function () { return decode(this); });
_add('toBase64', function (urlsafe) { return encode(this, urlsafe); });
_add('toBase64URI', function () { return encode(this, true); });
_add('toBase64URL', function () { return encode(this, true); });
_add('toUint8Array', function () { return toUint8Array(this); });
};
/**
* extend Uint8Array.prototype with relevant methods
*/
const extendUint8Array = function () {
const _add = (name, body) => Object.defineProperty(Uint8Array.prototype, name, _noEnum(body));
_add('toBase64', function (urlsafe) { return fromUint8Array(this, urlsafe); });
_add('toBase64URI', function () { return fromUint8Array(this, true); });
_add('toBase64URL', function () { return fromUint8Array(this, true); });
};
/**
* extend Builtin prototypes with relevant methods
*/
const extendBuiltins = () => {
extendString();
extendUint8Array();
};
const gBase64 = {
version: version,
VERSION: VERSION,
atob: _atob,
atobPolyfill: atobPolyfill,
btoa: _btoa,
btoaPolyfill: btoaPolyfill,
fromBase64: decode,
toBase64: encode,
encode: encode,
encodeURI: encodeURI,
encodeURL: encodeURI,
utob: utob,
btou: btou,
decode: decode,
isValid: isValid,
fromUint8Array: fromUint8Array,
toUint8Array: toUint8Array,
extendString: extendString,
extendUint8Array: extendUint8Array,
extendBuiltins: extendBuiltins,
};
//
// export Base64 to the namespace
//
// ES5 is yet to have Object.assign() that may make transpilers unhappy.
// gBase64.Base64 = Object.assign({}, gBase64);
gBase64.Base64 = {};
Object.keys(gBase64).forEach(k => gBase64.Base64[k] = gBase64[k]);
return gBase64;
}));
log.js
import {
Base64
} from './base64.js'
// 保存文字
let logTextData='';
/**
* js 日期格式化
* 传时间戳参数进行时间戳转换，不传时返回当前时间（返回年月日时分秒格式）
* @param {Object} timeStamp 时间戳参数 非必传
* @param {Object} format 格式化样式 非必传
*/
function getTimeStampDatetime(format = 'yyyy-MM-dd HH:mm:ss', timeStamp) {
let nowDatetime = new Date()
timeStamp ? nowDatetime = new Date(timeStamp) : nowDatetime = new Date()
return nowDatetime.Format(format)
}
Date.prototype.Format = function(fmt) {
var o = {
"M+": this.getMonth() + 1, //月份
"d+": this.getDate(), //日
"H+": this.getHours(), //小时
"m+": this.getMinutes(), //分
"s+": this.getSeconds(), //秒
"q+": Math.floor((this.getMonth() + 3) / 3), //季度
"S": this.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[
k]).substr(("" + o[k]).length)));
return fmt;
}
// 获取日志文件名称
function getLogFileName() {
// 今日日期
let nowDate = getTimeStampDatetime("yyyy-MM-dd")
// 当前时间精确到秒
let nowTime = getTimeStampDatetime("HH:mm:ss")
// 文件名称
let fileName = 'app-log.txt'
// fileName = nowDate + 'log.txt'
fileName = nowDate + '.txt'
// 内容换行符(自定义)
let newLine = "\r\n" + "======================================" + "\r\n" + nowTime + " =>>>" + "\r\n"
return {
nowDate:nowDate,
newLine: newLine,
fileName: fileName
}
}
/**
* 日志内容写入
* 文件写入手机地址，华为Android/data/应用包名/documents/app-log/2021-01-17log.text
* @param {Object} params 写入内容
* @param {Object} encryption 是否加密
*/
// 防抖
let writelogtime = null;
function writeLog(params, encryption) {
let text = JSON.stringify(params)
if (encryption) {
logTextData += (getLogFileName().newLine + " " + Base64.encode(text));
} else {
logTextData += (getLogFileName().newLine + " " + text);
}
if (writelogtime) {
clearTimeout(writelogtime)
}
//不然就创建新的定时器 3秒没有新日志再执行写入操作
writelogtime = setTimeout(function() {
writeLogTxt()
}, 3000)
}
function writeLogTxt(){
plus.io.requestFileSystem(plus.io.PUBLIC_DOCUMENTS, function(fs) {
// 可通过fs操作PUBLIC_DOCUMENTS文件系统
// 创建日志文件夹
fs.root.getDirectory("app-log", {
create: true,
exclusive: false
}, function(dir) {
dir.getDirectory(getLogFileName().nowDate, {
create: true,
exclusive: false
}, function(dir) {
// 创建或写入文件
console.log("Directory Entry Name: " + dir.fullPath + getLogFileName().fileName);
dir.getFile(getLogFileName().fileName, {
create: true
}, function(fileEntry) {
// 找到文件准备写入操作
fileEntry.file(function(file) {
// create a FileWriter to write to the file
fileEntry.createWriter(function(writer) {
// Write data to file.
writer.seek(file.size - 1)
// 换行插入日志文件
writer.write(logTextData);
logTextData='';
}, function(e) {
console.error("日志写入错误", error)
});
});
});
}, function(err) {
console.error("文件夹创建失败", err)
});
}, function(err) {
console.error("文件夹创建失败", err)
});
}, function(error) {
console.error("文件系统进入错误", error)
});
}
function delLogFile(){
console.log("日志删除")
plus.io.resolveLocalFileSystemURL(
'_documents/app-log', //指定的目录
function(entry) {
var directoryReader = entry.createReader(); //获取读取目录对象
directoryReader.readEntries(
function(entries) { //历遍子目录即可
for (var i = 0; i < entries.length; i++) {
console.log("文件信息：" + entries[i].name);
let twoDate=Date.parse(getLogFileName().nowDate)-(86400000*2);
console.log("保留三天内日志",twoDate)
if(Date.parse(entries[i].name)<twoDate){
entries[i].removeRecursively( function ( entry ) {
writeLog( "日志删除成功"+entries[i].name,false);
}, function ( e ) {
writeLog( "日志删除成功"+e.message,false);
} );
}
}
},
function(err) {
console.log("没有异常日志");
});
},
function(err) {
console.log("没有异常日志" );
});
}
// 查询本地日志文件（直接当前页面调用，该接口未使用）
function selectLogUrl(){
plus.io.resolveLocalFileSystemURL(
'_documents/app-log', //指定的目录
function(entry) {
var directoryReader = entry.createReader(); //获取读取目录对象
directoryReader.readEntries(
function(entries) { //历遍子目录即可
let isLog = false;
for (var i = 0; i < entries.length; i++) {
console.log("文件信息："+entries[i].name);
if(entries[i].name==getLogFileName().nowDate){
console.log("获取到当天文件为",entries[i].name)
var url="_documents/app-log/"+entries[i].name+'/'+getLogFileName().nowDate+'.txt';
var path=plus.io.convertLocalFileSystemURL(url);
var newurl = plus.io.convertAbsoluteFileSystem(path);
isLog=true;
return newurl;
}
}
if(isLog){
return '';
}
},
function(err) {
console.log("访问目录失败");
});
},
function(err) {
console.log("访问目录失败");
});
}
export default {
writeLog,
delLogFile,
getLogFileName,
selectLogUrl
}
保存位置
标签：function,uniapp,防抖,const,string,src,Base64,return,日志 来源： https://www.cnblogs.com/fhysy/p/16673114.html