lawrence_loh的博客

var accountTransToJson=require('./mysql/transToJson').accountTransToJson;var transToJson=require('./mysql/transToJson');//var accountInJsonTransToBinary=require('./mysql/transToBinary').accountInJso...

var https = require('https'); var fs = require('fs');var options = { key: fs.readFileSync('./mesh2/server.key'), ca: [fs.readFileSync('./mesh2/ca.crt')], //此處可放多個證書，故需用“[]” cert: fs.readFile...

mqtt雙向認證const mosca = require('mosca');const tls = require('tls');var CAFILE = './ca.crt'; var SECURE_KEY = './server.key.insecure';var SECURE_CERT = './server.crt';var sslsetting = { port: ...

以which命令尋mysql于何處：which mysql12得徑：/usr/bin/mysql12以此徑尋配置文件:/usr/bin/mysql --verbose --help | grep -A 1 'Default options'12顯示信息：Default options are read from the following files in the given order:...

一、查看盤空間及路徑:df -hdf -h二、登錄MySQL，并查當前存儲空間：mysql -uroot -pSHOW variables like '%dir%';三、關閉mysqlservice mysql start四、拷文件至新路徑，更其屬性cp -R /var/lib/mysql/* /mnt/mysqlchown mysql:mysql /mnt/mysql五、查配置文件，改data...

代碼：var async = require('async');const mysql = require ('mysql');var mysqlconfig=require('./config/mysql_config/mysql_config').mysqlconfig;var connection = mysql.createConnection(mysqlconfig); var...

async之waterfall：async.waterfall(tasks,callback)瀑布流函數，串行依次執行数组中函数，直至回調。参数tasks為數組，其包含需依次執行之函數。第二个参数為回調函數，有誤則行之以饋其錯，無誤則tasks完畢後行之。var async = require('async');const mysql = require ('mysql');var mysql...

一、函數：十六進制轉buffer（如以字串型轉buffer將多耗一倍存儲空間）function hextobin(bin, hex, len){//max wrote in 2018.4.26 console.log('hex:',hex); var i; var upper_str = hex.toUpperCase(); var dig; var base; //parseI...