frontend

问题 I've heard about browser storage and cookies but can't figure what is the best secure way to store a token. Also don't know if other methods exists, or if any third-part libraries does the work correctly. I'd like to have an exhaustive list of available methods to do so, with advantages/inconvenients of each and the best way above all, if any. 回答1: Where to Store Your JWTs With token-based authentication, you are given the choice of where to store the JWT. We strongly recommend that you store

问题 What is the difference between ng build and ng serve? What exactly done or changes happen after ng build and ng serve? 回答1: Update: Read this document https://docs.npmjs.com/misc/scripts#description The ng build is to build artifacts. The ng serve command is to pre-install packages and start the app. 回答2: The ng build command is intentionally for building the apps and deploying the build artifacts. The ng serve command is intentionally for fast, local and iterative developments and also for

问题 I have loaded the pdf in canvas but unable to pass it to viewer.js in PDF.js. Examples only show how to pass to canvas not to viewer.js and i want to load the pdf in different window 回答1: PDF.js comes with a viewer. You can embed an iframe/frame in your page, or open a new window. The url will be the same for both: pdfjs/web/viewer.html?file=URL_TO_YOU_PDF You can also pass binary data: // atob() is used to convert base64 encoded PDF to binary-like data. // (See also https://developer.mozilla

问题 I have loaded the pdf in canvas but unable to pass it to viewer.js in PDF.js. Examples only show how to pass to canvas not to viewer.js and i want to load the pdf in different window 回答1: PDF.js comes with a viewer. You can embed an iframe/frame in your page, or open a new window. The url will be the same for both: pdfjs/web/viewer.html?file=URL_TO_YOU_PDF You can also pass binary data: // atob() is used to convert base64 encoded PDF to binary-like data. // (See also https://developer.mozilla

问题 i'am trying to desgine barcode label in odoo it printed well if it short barcode otherwise the barcode go over the table border and i can't read it with reader also sometimes it print in 2 label if the the name is in first cell is long so i need to set fixed size for the table here is 2 screenshots for the labels here is the code <div class="col-xs-4" style="padding:0;" align="center"> <table class="table table-bordered mb-0" width="50mm" style="padding:0" > <tr style="font-size: 50%;;padding

问题 i'am trying to desgine barcode label in odoo it printed well if it short barcode otherwise the barcode go over the table border and i can't read it with reader also sometimes it print in 2 label if the the name is in first cell is long so i need to set fixed size for the table here is 2 screenshots for the labels here is the code <div class="col-xs-4" style="padding:0;" align="center"> <table class="table table-bordered mb-0" width="50mm" style="padding:0" > <tr style="font-size: 50%;;padding

问题 I have a json file on static folder and I'm trying to access it from another web site, but I'm having problem with the CORS. How can I add headers (like Access-Control-Allow-Origin) on the static files response? I tried this https://github.com/nuxt/nuxt.js/issues/2554#issuecomment-363795301, but didn't work for static files. module.exports = function (req, res, next) { res.setHeader('Access-Control-Allow-Origin', '*'); res.setHeader('Access-Control-Allow-Headers', '*'); res.setHeader('Access

问题 I have a json file on static folder and I'm trying to access it from another web site, but I'm having problem with the CORS. How can I add headers (like Access-Control-Allow-Origin) on the static files response? I tried this https://github.com/nuxt/nuxt.js/issues/2554#issuecomment-363795301, but didn't work for static files. module.exports = function (req, res, next) { res.setHeader('Access-Control-Allow-Origin', '*'); res.setHeader('Access-Control-Allow-Headers', '*'); res.setHeader('Access

问题 I am trying to enter timestamp using DateTimeField but in my entity i am having java.sql.timestamp . Converting datetimefield to timestamp is giving error ConversionClass package com.vaadin.convertor; import java.sql.Timestamp; import java.time.LocalDateTime; import com.vaadin.data.Converter; import com.vaadin.data.Result; import com.vaadin.data.ValueContext; @SuppressWarnings("serial") public class StringTimestampConvertor implements Converter<LocalDateTime, Timestamp> { @SuppressWarnings(

问题 I am trying to enter timestamp using DateTimeField but in my entity i am having java.sql.timestamp . Converting datetimefield to timestamp is giving error ConversionClass package com.vaadin.convertor; import java.sql.Timestamp; import java.time.LocalDateTime; import com.vaadin.data.Converter; import com.vaadin.data.Result; import com.vaadin.data.ValueContext; @SuppressWarnings("serial") public class StringTimestampConvertor implements Converter<LocalDateTime, Timestamp> { @SuppressWarnings(