the usual application of shiro is like this. if there are mobile users and mobile phones, the mobile phone has many functions, such as gesture manipulation, call, video playback, text function, etc. each function as a menu user A has the permission t...
problem description I want to crawl infoQ articles, such as articles under AI topics, but I m curious about how he asked to load the article list. uses Java s crawler gecco. the environmental background of the problems and what methods you have t...
Servlet technology needs to re-encode the file name when downloading Chinese name attachments for example: if (agent.contains("MSIE")) { IE filename = URLEncoder.encode(filename, "utf-8"); filename = file...
[ { "clockInState": 0, "sectionNum": "1", "courseBegin": "2019-02-09 00:00:00.0", "teacherName": "", "drillID": 0, "childList": [ { "...
< H1 > problem description < H1 > I use the hash table to represent the people on the seat (key represents the seat position, value is the specific uid), and then use hsetnx to process the concurrent seat. but there is a problem that, after the seat ...
I try to switch pages using custom controls. I read this tutorial: composite controls now I use a Cardview and LinearLayout to put the button in it, but I can t do it. so I followed this tutorial: put the code to dynamically add page fragments ...
problem description java.util.function,, A code that determines whether a field is empty has been rewritten (some business definitions assume that a field is empty by default if it is equal to-1). ,,,: related codes Old Code public static &...
according to the Wechat development documentation, I have obtained the user list { "total ": 2, "count ": 2, "data ": { "openid ": [ "OPENID1 ", "OPENID2 ", "OPENID3 ", "OPENID4 ",.]}, "next_openid ": "NEXT_OPENID " } is to get a lot of o...
I have an old SpringBoot project, which now runs on jdk11 and works normally, but will report the following error when the project starts: stackoverflow found that module-info.java can be used to solve the problem. Now that I create a module-info.j...
the demand is to query the book browsing data of the last 100 days, and sort the first 23 searches according to the id grouping of browsed books . The statement is: SELECT ip_times.query, books.name,books.cover, COUNT (books.id) AS VALUE FROM ip_time...
I m doing items, adding shopping carts to select attributes I m cycling out an array of nested arrays I choose color attributes "yellow ", "gold ", "white " size properties "M ", "L " when clicking on commodity properties. "XL " I have no p...
now the official account is authorized to a third party, and the administrator only needs to scan a QR code to complete the authorization. how is this implemented, and it is not found in the developer documentation- ...
in js, we often encounter the problem of floating-point precision (0.1-0.2). We all know that it is because infinite cyclic decimals are generated when converting to binary, while the Mantissa part of js can only hold 52 digits, which is caused by inter...
can the access_token of the official account be saved in Session whether each user s Session is independent of each other, and each user will get access_token once where does access_token exist under normal circumstances ...
1. Does the load balancer need to be configured only by the service consumer, and whether the url that the browser accesses the micro-service through the gateway needs to be configured. 2.feign is the service calling service. Does the service itself nee...
I would like to ask you that when I use mybatis to execute sql to get data, I define the mapping in xml as follows: <select id="testQry" parameterType="hashmap" resultType="hashmap"> SELECT DISTINCT username FROM t_u...
now there are three roles: general factory, middleman, and customer. the framework I use is the laravel framework I have built three middleware: BackendRole.php function: only allow factory access ShopRole.php function: only allow middlemen ...
there are two table-building schemes that I have come up with: first: order_id order id shop_id merchant id goods_id goods id . this way is to write all kinds of id in the order table and associate them when needed. second: order_id order id s...
want to do this use @ Autowired to inject a map in the service layer let Spring scan automatically, and use key to fetch the injected classes in map, which is equivalent to policy mode . the newly added module is annotated with @ Service ( "key ") ...
is there any good way for php to read a 50m exell file and then write it to the database? It is about 100w pieces of data ...
question: how do I get vscode to format code according to the eslint specification? Now the saved code always reports an error. ...
when I do a long connection service for the first time, I encounter a small problem, which used to be http. Use url to determine the service for example, let s be clear. for example, there are two services, one login and one chat, and the correspond...
vue for the framework. it needs to be compressed before uploading. The canva is used to compress before uploading, but the ios11 image cannot be uploaded. After that, I found a plug-in, localResizeIMG. think2011 localResizeIMG the results are norm...
The input input box cannot scroll to the visual area immediately after gaining focus, only after entering the content. How should I scroll to the visual area immediately after I want to gain focus? ...
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