Tag:company

  • Class starts, Dubbo go micro service upgrade practice

    Time:2022-5-1

    Zeng fanwei, senior development engineer of Hangzhou kaikela Education Technology Co., LtdSource|Alibaba cloud native official account Hangzhou kaikela Education Technology Co., Ltd. is an online education company dedicated to providing learning guidance for primary and secondary school students. At present, the company’s back-end service infrastructure mainly relies on Alibaba cloud native, including computing, network, storage […]

  • In cash flow analysis: how can bi technology help

    Time:2022-4-29

    Imagine that in today’s era, some people still actually post letters because they think e-mail is difficult and expensive. Every time they have to take their letters to the post office, the postman collects them and delivers them later. Then, delivery takes at least a few days, and e-mail can be exchanged immediately. Inefficient and […]

  • Chapter IX Yunji datacanvas company won three awards of machine heart, helping to upgrade the digital intelligence of the industry

    Time:2022-4-18

    Recently, machine heart, the leading cutting-edge technology media and industrial service platform in China, released the 2021 list of “Ai China” machine heart. Chapter IX Yunji datacanvas was selected as “the best AI company“, “the most commercial value solution” and “the most innovative value landing case” by virtue of its excellent technology in the field […]

  • Total analysis of web element units

    Time:2022-4-15

    Relative length unitsem Description: relative length unit. The font size relative to the text in the current object.If the font size of the text in the current line is not artificially set, it is relative to the default font size of the browser.Example:div { font-size : 1.2em; } ex Description: relative length unit. Height relative […]

  • Java MySQL BLOB data reading and writing operations

    Time:2022-4-15

    package com.lw.database;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.sql.Connection;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;/** * CREATE: CREATE TABLE IDCard ( id char(18),pic BLOB); * @author fhadmin * from  fhadmin.cn */public class LOBTest {    protected static final String DEFAULT_URL = “jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8”;    protected static final String DRIVER_NAME = “com.mysql.jdbc.Driver”;        private Connection connection = null;        public LOBTest() throws ClassNotFoundException, SQLException {        Class.forName(DRIVER_NAME);        connection = DriverManager.getConnection(DEFAULT_URL, “user”, “password”);    }        public void insert(String id,String path) throws SQLException, IOException {        PreparedStatement preparedStatement = connection.prepareStatement(“INSERT INTO IDCard VALUES (?,?)”);        preparedStatement.setString(1, id);        FileInputStream fileInputStream = new FileInputStream(path);        preparedStatement.setBlob(2, fileInputStream,fileInputStream.available());        preparedStatement.execute();    }        public void get(String id) throws SQLException, IOException {        PreparedStatement preparedStatement = connection.prepareStatement(“SELECT pic FROM IDCard WHERE id = ?”);        preparedStatement.www.sangpi.com        comsetString(1, id);        ResultSet results = preparedStatement.executeQuery();        while(results.next()) {            FileOutputStream outputStream = new FileOutputStream(“/Users/liuwei/temp.png”);            InputStream inputStream = results.getBinaryStream(1);            int num = -1;            while((num=inputStream.read())!=-1) {                outputStream.write(num);            }            outputStream.flush();            inputStream.close();            outputStream.close();        }    }        public static void main(String[] args) throws ClassNotFoundException, SQLException, IOException {        LOBTest test = new LOBTest();        test.insert(“78907656784323”, “/Users/liuwei/Documents/bt_next_nor.png”);        test.get(“78907656784323”);    }} be careful: Four blobs of MySQLWebpage GameType Type} size in bytes Tinyblob # 255b Max Blob @ 65K Max Mediumblob # 16m Max Longblob # maximum 4G When inserting an image, pay attention to the size of the image. An error will be reported when the image exceeds the maximum bytes that can be […]

  • Class begins! Dubbo go micro service upgrade practice

    Time:2022-4-12

    Introduction:Hangzhou kaikela Education Technology Co., Ltd. is an online education company dedicated to providing learning guidance for primary and secondary school students. At present, the company’s back-end service infrastructure mainly relies on Alibaba cloud native, including computing, network, storage and kubernetes services. Zeng fanwei, senior development engineer of Hangzhou kaikela Education Technology Co., LtdSource|Alibaba cloud […]

  • How to manage 1000 anchors by one person?

    Time:2022-4-12

    With the iterative update of Internet technology, the 5g period has produced a better appreciation experience. The continuous progress of smart phones and live broadcasting tools has provided a hardware environment for its rapid development, and the live broadcasting market has exploded. According to statistics, in 2020, China’s online video live broadcasting customers will reach […]

  • Python + seatable | obtain corporate financing and other information from qixinbao website to seatable form

    Time:2022-4-6

    This case is based on the real needs of an investment company. As an investment company, it needs to update the financing information of the company concerned in time. How to solve this problem. Generally, we only need to obtain a series of public information of the company from qixinbao and other websites, including industrial […]

  • Large visual screen

    Time:2022-4-4

    How to fit the screen Algorithm: image.png In the above figure, if the width / height of the equipment is > 16 / 9, WP is equal to the equipment height * 16 / 9; otherwise, if it is less than or equal to 16 / 9, it is equal to the equipment width.WP is […]

  • Hard bar to the end: the bitter interview road of two slag, from outsourcing to well-known large factories, the mental journey of four years of small IOS development

    Time:2022-3-29

    Recently, there should be a lot of young partners going to job hopping interview. I believe some of you have successfully received offers, while others have hit a wall. Then I have prepared relevant interview materials and relevant algorithm materials for you here. You want to know me The author spent 16 years in Guangdong, […]

  • Programmers – 10 golden rules for job hunting

    Time:2022-3-24

    Let’s take a look at the 10 golden rules of job hunting under the peak recruitment season of gold, silver and four. It can be said that each one has a certain depth 01: many times, HR doesn’t want you because of your level or your professional skills. But HR has no confidence in itself. […]

  • 3D web page experiment – based on Babylon JS and recast JS to realize RTS unit control

    Time:2022-3-21

    1、 Operation effect 1. Build a map with topographic relief and different geomorphic textures: The middle of the map is a sunken river channel, and the two corners are prominent highlands. The highlands and lowlands are connected by slope channels. Underwater is made of sand and soil, and the sand and soil mesh fits the […]