url shortener system design

Our basic framework has been set up, now the integration of MVVM framework prism, in ViewModel do some logical processing, the interface design really separate. This facilitates our system development and division of service, while improving system maintainability and flexibility. Specific Prism installation and Microsoft.Practices.Prism.dll access in this

app log Tune-in and server interaction design app log fetch interface design Interface Conventions Interface Return Description Parameters parameter Type Description Code Integer Meaning similar to the HTTP protocol return code, 200 means success Message String Returns the message, if code is an exception, the return message is exception inf

between the WEB client and the server is a text-based application-level protocol called HTTP (hypertext Transfer Protocol, Hypertext Transfer Protocol). HTTP is a simple protocol. A WEB client (that is, a browser) opens an Internet connection to the server and requests some content. The server responds to the requested content, and then closes the connection. The browser reads the content and displays it on the screen.2. Web ContentEach content returned by the WEB server is associated with a fi

can not show the English permission to make users understand, the Chinese regular is [\u4e00-\u9fa5].Background View query Chinese permission code is as follows:= Permission.objects. Get (Codename__iregex=u'[\u4e00-\u9fa5]') Print C # matches Chinese permissions (all queries) Permission.objects.filter (Codename__iregex=u'[\u4e00-\u9fa5]'). VALUES ()The user management interface is to add users and assign permissions to users, such as:Perhaps someone will ask, how to implement the permission con

Their usual code work, the current communication and log these two pieces of the system is the most likely to become the bottleneck of the place. Because the system design is more concerned about communication, this aspect of code is often more mature. The log is ignored more, may also be the company's system business

Preface: In the crawler development process, some business scenarios need to crawl hundreds of or even thousands of sites at the same time, need a support for multiple crawler framework. You should be aware of the following points in your design: code reuse, Functional modularity. If you write a complete crawler for each site, it must contain a lot of repetitive work, not only the development efficiency is not high, and to the end of the whole reptil

0 --> $velocityCount--> --> API permission design summary system sign verification rulesHttp://my.oschina.net/anziguoer/blog/624840 1. [File]Receive. php 600) {echo 'verification invalid. Please resend the request'; die () ;}$ sign = $ data ['sign']; unset ($ data ['sign']); ksort ($ data); $ params = http_build_query ($ data); $ sign2 = md5 ($ params. $ secret); if ($ sign = $ sign2) {die ('verificati

JQuery Ajax Serialize () method form submits data, there is a very strange problem, it seems that can not be taken to hide the value of the control. //Click the Submit button to save the data$ (' #btn_submitUser '). Click (function () { varUserId = $ (' #UserId '). Val (); if(UserId = = ""{$.ajax ({type:"POST", URL:'/users/create/', Data: $ ("#SaveUserForm"). Serialize (), DataType:"JSON", Success:function(data) {if(Data. UserId > 0) {}}, B

Flow_form table. Use later to determine if this field has null and is not a null priority outHow to take the saved value:$ ("#setFormLayout"). HTML ()Save the Code:$("#btnSave"). Click (function () {$.ajax ({URL:"@Url. Action ("Savelayout")", type:"Post", data: {html: $ ("#setFormLayout"). HTML (), FormId:"@ (Viewbag.formid)"}, DataType:"JSON", Success:function (data) {if(Data.type = =1) {window.parent.fra

How is zhihu's label system designed? Can someone provide an in-depth explanation? How is zhihu's label system designed? Can someone provide an in-depth explanation? Reply content: How is zhihu's label system designed? Can someone provide an in-depth explanation? First, the product design:1. What is a tag? Cate

How is the label system designed? Is there anyone who can answer it in depth? Reply content: How is the label system designed? Is there anyone who can answer it in depth? The first is product design:1, what is the label? Classification or keywords?2, how to produce the label? User active input, edit input, automatic generation? Technical aspects:The simp