SpringMVC Execution Process Resolution

Spring is known to people who have done java development, but even if they don't know it now, they will gradually know that because of its huge size and many modules, I will introduce the Spring MVC that is used in business development (90% of people are doing business development after years of experience).          First, let's look at how Sp ...

Posted on Fri, 03 Apr 2020 23:20:09 -0700 by papaface

crontab timing task does not execute in Linux

Recently, I encountered a case of crontab timing task not executing in linux. I'd like to share it with you to avoid stepping into the pit I encountered. Post the script first In order to facilitate the display, the script has been written into the parameter #!/usr/bin/env bash # 1 output file to log for example: bg # 2 the dest ...

Posted on Thu, 02 Apr 2020 15:24:01 -0700 by playa4real

Linux common basic commands (soft link and hard link)

Hard link: it is equivalent to multiple entries of the file. Its function is to back up the file, create a snapshot, etc Soft link: a shortcut equivalent to windows Command format: ln option source file destination file -s: Create soft link 1. Create a hard link: ghostwu@dev:~/linux/cp$ ls ghostwu.txt ghostwu@dev:~/linux/cp$ ls -l to ...

Posted on Thu, 19 Mar 2020 09:18:47 -0700 by Megienos

Audio and video series 4: how to get started with ffmpeg for beginners (taking FLV decoding H.264 as an example)

Audio and video series 4: how to get started with ffmpeg for beginners (taking FLV decoding H.264 as an example) install Upper hand Run demo directly Tutorial of ffmpeg Library Learning of professional knowledge Look at the source code of ffmpeg Give an example discover problems Find API documenta ...

Posted on Mon, 16 Mar 2020 23:17:02 -0700 by danrah

Elastic search source code analysis - startup process

The elastic search version is 5.5.0. The following is the main core process, ignoring the exception compensation part Whole process Preview the starting process of elastic search in the way of code flow elasticsearch.main(args, terminal) mainWithoutErrorHandling(args, terminal); execute(termina ...

Posted on Sat, 07 Mar 2020 21:23:53 -0800 by Michael 01

JAVA Filter\InterceptorSlice Comparison

0. Interception Order Filter Interceptor ControllerAdvice Aspect Controller   1. Filter Filter You can get information about the original http request and response But no information about the requested method was available. package com.moon.web.filter; import java.io.IOException; import java.util.Date ...

Posted on Sun, 01 Mar 2020 09:30:59 -0800 by maxpagels

Operation of lvm logical volume -- learning notes

This experiment environment is RedHat 7.0 system Logical volume manager is a mechanism used by linux system to manage hard disk partition. The original intention is to solve the problem that hard disk device is not easy to modify partition size after creating partition. It provides an abstract volume group, which can combine multiple hard disk ...

Posted on Tue, 25 Feb 2020 03:34:33 -0800 by Zyxist

Farewell to the era of handwritten interface documents, the more powerful LKADocument interface document management framework than Swagger was born!

For more detailed and comprehensive tutorials, please watch the video tutorials recorded by the author. Address: https://edu.51cto.com/sd/9cb7fLKADocument video tutorial I. Introduction Today, with the separation of front and back ends and more detailed division of labor, in order to reduce the communication cost of front-end and back-end deve ...

Posted on Thu, 13 Feb 2020 00:42:05 -0800 by dethknite

git tutorial (version fallback)

Now that you have learned to modify the file, submit the modification to Git version library. Now, practice again. Modify the readme.txt file as follows: Git is a distributed version control system. Git is free software distributed under the GPL. Then try to commit: $ git add readme.txt $ git commit -m ...

Posted on Sun, 09 Feb 2020 20:36:26 -0800 by Ice

Xuecheng Online - day 15 - handout - media management system integration IV

3. Online learning interface3.1 demand analysisAccording to the business process below, this chapter completes the front-end learning page to request the learning service to obtain the course video address, and automatically plays the video. 3.2 build development environment3.2.1 create databaseCreat ...

Posted on Fri, 07 Feb 2020 07:37:38 -0800 by if