JSON of serialization and deserialization

To transfer objects between different programming languages, you need to serialize them into a standard format, such as XML But a better way is to serialize it into JSON, because JSON represents a string that can be read by all languages, stored on disk or transmitted over the network easily JSON is not only standard format, but also faster tha ...

Posted by marty_arl on Fri, 06 Dec 2019 15:27:24 -0800

Using PHPExcel to parse Excel tables

Install class library Download PHPExcel class library from GitHub Address: https://github.com/PHPOffice/PHPExcel After unzipping, move the Classes folder to the extend directory of ThinkPHP and rename it phpexcel Add references where needed in the project import('phpexcel.PHPExcel', EXTEND_PATH); code implementation <?php namespace app\ind ...

Posted by tlawless on Fri, 06 Dec 2019 12:37:45 -0800

Zephir for PHP extension development

If you often pay attention to the PHP framework falcon, you should know that the team of Falcon has developed a high-level language for better development of falcon—— Zephir. Zephir, an open source high-level language, aims to simplify the creation and maintainability of PHP extensions, focusing on type and memory secu ...

Posted by nvidia on Fri, 06 Dec 2019 12:24:58 -0800

Alipay small program crawl Road [1]

Alipay creates personal identity [if you want to become a small program administrator of the company's project, do not become = = self-developed developer = =] It can't be set The cache mechanism of Alipay setStorageSync [Set local storage] my.setStorageSync({ key: 'park_id', data: { park_id: 1, } }); ======== ...

Posted by biznickman on Fri, 06 Dec 2019 12:14:01 -0800

Use python to analyze funds! Make money to win in the starting line!

You don't manage money, money doesn't care about you! Can python help you with your finances? Effect preview Trend chart of cumulative yield Basic information results How to use: Python 3 + some third-party libraries import requests import pandas import numpy import matplotlib import lxml Configure config.json. Code to configure the fund cod ...

Posted by fingerprn on Fri, 06 Dec 2019 05:31:52 -0800

Learning record remote call (HttpClient,RestTemplate, integrate custom connection pool, integrate SpringBoot test class)

Remote call 1. overview One project wants to call the functionality of another "User management system" calls "commodity management system", We call it "remote call". At this time, "user management system" is equivalent to simulating "browser". 2. Call mode RPC: the remote call mode of c ...

Posted by callmubashar on Fri, 06 Dec 2019 04:33:48 -0800

New functions | MySQL 8.0 multi valued indexes

As the name implies, multiple secondary index entries can be created for the same Primary key in the index. In fact, the basic functions of array type have been supported, and the secondary index is built based on array. This means that the number of records in the secondary index can be more than the number of records in the clustered index, s ...

Posted by jaret on Fri, 06 Dec 2019 01:35:55 -0800

Element input box with history query record

Requirement description Add the query box on the page to display the history search record Realization and pit record Use the Element input box with input suggestions to achieve this requirement. Usage details Official website 1. Pit 1: cannot return array directly in querySearch, must call callback function cb to process data Take a look at t ...

Posted by Concat on Fri, 06 Dec 2019 00:26:58 -0800

Introduction guide to spring cloud boot RocketMQ

MAVEN Configuration Producer Configuration application.yml Configuration application.properties configuration Define Output Binding Turn on Binding (turn on MQ) send message Consumer Configuration application.yml Configuration Define Input Binding Turn on Binding (turn on MQ) Accept message   ...

Posted by will83 on Fri, 06 Dec 2019 00:08:23 -0800

What exactly is AFNetworking like

AFNetworking is a well-known tripartite library for the iOS world and has completely replaced ASI.The latest AFNetworking3.0 has also been switched from NSURLConnection to NSURLSession for ease of use.As an experienced iOSer who is constantly exploring, you should also look at the internal merits of source enhancement. 1. Overview First, look ...

Posted by Najjar on Thu, 05 Dec 2019 18:46:01 -0800