for example, in a user group, a user can belong to multiple groups, and multiple users in a group need to do bidirectional caching because they need to obtain groupSet:getByUserId:xxx userSet:getByGroupId:xxx in both directions then role, permission r...
does the red box checkbox use the current page or all pages? ...
as shown in the figure, the current situation is: Note: these three systems can be regarded as micro-services connected through the HTTP interface. requirement: no matter external callers call our business system, account system, or internal busines...
is currently working on the microservice architecture. Gateway registers and discovers with node-proxy. service service may have node and spring boot. database mysql, cache redis. at present, it is mainly stuck in the communication between service...
problem description for example: merchandise module is a separate service that exposes some rest api interfaces, providing product picture links, basic product information, etc. shopping cart is a separate module (for example, the module contains a ...
< H2 > question < H2 > there are two independent systems. System An is the class information management system and system B is the book management system. the current design idea is that system An and system B are divided into two independent busines...
problem description for example, in the voting of 1W people, suppose there are 1000 people online at the same time, how to design the database and what configuration should be chosen for redis? configuration of redis + mysql database ...
with tens of thousands of participants and about 1000 concurrent voting systems, which configuration should be selected for the CVM for storage with mysql,? What about the bandwidth? More than big data should be used for mysql or mariadb (because there i...
for example, my backend provides a series of APIs for use by different clients (such as IOS, Wechat official account, Android). In order to keep the interface secure, I imagine this design: assign a key to each client. Each time the API is requested, ...
first describe the background of the problem: we have made a video-like personal network. The solution is to upload the video to the backend of the project (on Ali s ECS CVM) in the browser and upload it to oss at the backend. When playing the video, th...
there are several problems in the process of learning architecture: some Service layers will call other Dao layers, for example, UserService will call UserPositionDao UserBookDao some Service layers will call other Service layers, for example, Use...
item is a digital currency quotation query APP. the previous architecture is: front-end-- php-- (mysql)-- nodejs-- exchange API. What the exchange provides here is the webscoket interface, which is stored in the database after receiving the data throu...
there is such a requirement: user login module, does not support the choice of login method, only a text input box, while supporting: QQ number, mobile number, e-mail, nickname, ID card, etc. (if the user filled in the values of these five fields) any f...
2 projects the option that the first project has a drop-down box is some of the functions provided by the second project. Is there any ready-made component that can be shared? Of course it s OK to use zk, but is there a ready-made framework? ...
currently working on a saas platform what kind of architecture can meet the following requirements: Separation of front and rear ends flexible selection of front-end technology, less historical burden, convenient maintenance, and organizational n...
the system Ubuntu16, successfully connected to the Tencent Cloud host using the ftp command, the pwd command was available, but the ls,dir connection timed out. As shown in the picture. Tencent Cloud mainframe iptables I turned off directly, all the...
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Click the button once to dynamically add an input, to get the value of the input input when the input input is worth it ...
renderindex ...
after logging in for the first time, save the token locally, and then every time you jump to a new page, you have to send a request to the server to verify whether the token is legal, display the page if it is legal, and force you to jump back to the log...