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What I built is that springboot is version 4.x, which sometimes brings a lot of problems Question 1 In the beginning, when we used the lower version, we configured json to return <!--&lt;!&ndash; https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-core-asl &ndash;&gt; <dependency> ...

I. sass/scss ruby language 1.scss variable $w:300px;$h:235px; .mm{width:$w;height:$h;} 2.sass Nested writing of: .header{ height:200px; h1{font-size:18px} } II. swiper.js Wheel planting 1. Load the swiper.min.css style file on the page 2. Load the file swiper.min.js 3. Write html structure <div class="swiper-contain ...

Step one: First log in QQ Internet Homepage https://connect.qq.com/ Conduct personal / business certification. The audit time is about one week. Create an application after the certification: The APP ID and APP Key parameters of the application are mainly used here. To fill in the callback address is to request the qq interface to get the cod ...

This may be a problem that is easy to be ignored. First, we need to be clear:In MySQL, AND takes precedence over OR. That is to say, without the limitation of parentheses (), the AND statement is always executed first AND then the OR statement.For example: select * from table where condition1 and condition2 or condition3 Equivalent to select ...

By cherry, the author of the oil monkey "Webpage mouse click effect" Inspired, so slightly modified and produced, completed the desktop mouse click effect of Steam Wallpaper Engine version. Steam link: https://steamcommunity.com/sharedfiles/filedetails/?id=1609057588   The completion effect is as follows:       Since the orig ...

Preface Sometimes the front-end development will process some data returned from the background, or do some processing according to the data judgment; at this time, it is very necessary to encapsulate some common tool classes; This paper encapsulates 59 methods according to some commonly used tool classes, of course, there are many less used ...

Json web token (JWT) is a JSON based development standard (RFC 7519) which is implemented for the purpose of passing statements between network application environments. The token is designed to be compact and secure, especially suitable for SSO scenarios of distributed sites. JWT declaration is generally used to transfer the authenticated user ...

I. download pictures online import os import sys import xlrd import requests import urllib.request def read_excel(excel_path): workbook = xlrd.open_workbook(excel_path) sheet = workbook.sheet_by_name("Sheet1") nrows = sheet.nrows img_list = [] for i in range(nrows): img_list.append(sheet.row_valu ...

Safety design of php interface The security of the interface is mainly designed around the three mechanisms of Token, Timestamp and ign, which ensure that the data of the interface will not be tampered with and called repeatedly. The following is specific: (1)Token authorization mechanism: (Token is the credential of the client to access the ...

For deep copy, the concept of shallow copy is not much said, the concept can be Baidu yo! Here are some research on deep copy objects! Only deep copy of value type data For data objects with only values, the following line is enough! JSON.parse(JSON.stringify(obj)) A simple, unstructured, deep copy function clone(source) { var target = {}; ...