Python crawler novice tutorial: Climb 6574 articles to tell you what the product manager is looking at!

As two antagonistic species in the Internet, product Wang and program ape seem to be natural rivals; but the two sides that work closely together in the product development chain can better promote the development of the project. So what articles do product managers read on weekdays? How can we program ...

Posted on Sat, 20 Jul 2019 05:21:58 -0700 by khr2003

Beginning with Android - --- Basic usage of activities

Activities are components that can contain user interfaces, mainly for interaction with users. This article describes how I create a simple activity manually. Let's start with a new Android project, in which we don't choose Empty Activity, but Add No Activity, because we create an activity manually. C ...

Posted on Sat, 20 Jul 2019 04:47:00 -0700 by jeff5656

I love the Java series - [Timing Task Component Quartz and Using Quartz to Timely Clean up Picture Garbage Cache in Qiniu Cloud and Redis]

1. Introduction of Quartz Quartz is an open source project in the field of Job scheduling. Quartz can be used independently or in combination with spring framework, which is commonly used in practical development. Using Quartz, one or more timed tasks can be developed. Each timed task can be executed independently, such as once every hour, onc ...

Posted on Sat, 20 Jul 2019 02:42:50 -0700 by M2tM

Java Code Implements File Upload

Java Code Implements File Upload In the process of file upload, files are submitted from browser to server in the form of stream. In general, Apache's open source file upload component common-fileupioad is used to upload files. Since common-fileupioad relies on common-io, you also need to download the ...

Posted on Fri, 19 Jul 2019 22:38:15 -0700 by Afrojojo

@ Can the beans in the xml configuration imported by ImportResource use the property values imported by @PropertySource?

Every sentence Masters are paranoid, paranoia can produce power, compromise is powerless. You compromise with the world. You are the air. So if there were no prejudice, where would the master come from? Relevant Reading [Xiaojia Spring] Detailed description of the loading and use of Property Placeholder Configurer, Property Override Configurer ...

Posted on Fri, 19 Jul 2019 01:24:51 -0700 by crazycaddy

Record Springboot's use of Swagger

The first time was with Swagger, the company has been using this api, two days of their own built on Baidu. Official webmaster, Yazi: https://swagger.io/ I also learned from many blogs on Baidu. For the first time, there were many small problems. The first step is the maven package, which uses 2.2 ...

Posted on Fri, 19 Jul 2019 00:35:48 -0700 by santosj

Android Learning: A Summary of the Four Components

What is Service? As one of the four basic components of Android, Service has an independent life cycle like Activity. The difference is that Service only executes in the background, has no user interface, and its life cycle is independent of other basic components such as Activity. It is used to provi ...

Posted on Thu, 18 Jul 2019 22:15:04 -0700 by coily

Summary of problems encountered in server configuration of openfire

1.jdk,nginx,tomcat, database, have been installed and configured, services have been up, background login, has been reported that users do not exist, excluding network reasons (firewalls), and log writing failure (no manual creation of log directories on the new server), still not work, and later found that the database case-sensitive did not c ...

Posted on Wed, 17 Jul 2019 17:38:42 -0700 by digitallookout

Construction of Hadoop Large Data Processing Platform

Because of a small competition recently, it is necessary to build a data processing platform. Because of the large amount of data, I chose Hadoop. I am not very familiar with this platform, so I encountered many problems in the process of building, so I want to record it, which may be used in the future.It is not difficult to build the system. ...

Posted on Wed, 17 Jul 2019 16:27:15 -0700 by prcollin

Material Design Control Use (2)

This article goes on to the previous one. Summary of Material Design Controls (I) If you are not familiar with Material Design, you'd better read the first one and see the second one. This article describes the remaining controls FloatingActionButton TabLayout Snackbar TextInputLayout FloatingActionButton As the most controve ...

Posted on Tue, 16 Jul 2019 16:19:28 -0700 by ale_jrb