71 - advertising management module and user management module of the project

Advertising management module and user management module of the project In the last blog (Chapter 70 blog), we completed the course management module, and then we completed the advertising management module and user management module Advertising management module: Realize the following functions: Advertising space list query Add ad space ...

Posted by amrigo on Thu, 19 May 2022 22:51:48 +0300

Build a picture server based on docker container

   Recently, there is a need to store pictures in the server, so I am going to build my own picture server, based on the centos system, and install nginx for mapping. Before starting, it is recommended to update the yum source of centos # update yum source yum update Create an image   It’s time to build your own server. I don&r ...

Posted by ShaileshD on Thu, 19 May 2022 22:43:21 +0300

Arthas realizes a CPU troubleshooting and code hot update

Author he Bo [the official community of Arthas is holding an essay solicitation activity. You will get a prize if you participate~ Click Submit] 1. Preface background Online code often takes up too much CPU. According to past experience, I will use the top instruction and further use jstack to check the specific information for problem troubles ...

Posted by tech0925 on Thu, 19 May 2022 22:04:54 +0300

JAVA beginner notes

Simple understanding of the basic rules and syntax of java Learning website: Java tutorial | rookie tutorial Beginner Java Java language is a pure object-oriented programming language Java (Standard Edition) JDK,JRE,JVM JDK : Java Development Kit JRE : Java Runtime Environment JVM : JAVA Virtual Machine JDK Download https://www.oracle.com/jav ...

Posted by Eratimus on Thu, 19 May 2022 21:18:15 +0300

Data Structures – Graphs (Depth First Traversal and Breadth First Traversal) (Java)

Data Structures – Graphs (Depth First Traversal and Breadth First Traversal) (Java) <!-- more --> Blog Description The information involved in the article comes from the Internet and personal summary, which is intended to summarize personal learning and experience. If there is any infringement, please contact me to delete it, thank ...

Posted by QSDragon on Thu, 19 May 2022 20:13:15 +0300

Is Java value passing or reference passing?

In the Java} language, the essence is only value passing, but no reference passing. See the text for explanation and proof. When it comes to value passing and reference passing, we have to mention two concepts: value type and reference type.   1, Value type   In a popular sense, the so-called value type refers to the eight basic data types in J ...

Posted by invarbrass on Thu, 19 May 2022 19:52:57 +0300

JavaSE [notes] [object oriented]

Chapter 4 object oriented (Part I) Process oriented and object oriented What is the "Object-Oriented" programming idea? First, explain "thought". First ask you a question: what kind of person do you want to be? Maybe you will answer: I want to be a good person, honor my parents, respect my elders, care for my relatives and ...

Posted by jtmathome on Thu, 19 May 2022 17:36:01 +0300

elasticsearch simple usage summary

elasticsearch simple usage summary 1. Preparation for ELK installation 1.1 ELK download address ElasticSearch: https://mirrors.huaweicloud.com/elasticsearch/?C=N&O=D logstash: https://mirrors.huaweicloud.com/logstash/?C=N&O=D The visual interface elasticsearch head https://github.com/mobz/elasticsearch-head kibana: https://mirrors.huawe ...

Posted by anwoke8204 on Thu, 19 May 2022 14:41:04 +0300

Realize the weather forecast App by hand -- switch the city to manual update + automatic refresh of background service

Manual update and background service automatic refresh and switch cities Update weather manually It is realized by pull-down refresh <androidx.swiperefreshlayout.widget.SwipeRefreshLayout android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/swipe_refresh"> <ScrollView andro ...

Posted by bradleybebad on Thu, 19 May 2022 13:49:32 +0300

In Java, the use of BufferedReader and BufferedWriter

Buffer stream: (improve the efficiency of reading and writing) BufferedReader, BufferedWriter: used to process characters The buffer stream acts on the node stream, so the object of the node stream is passed to the buffer stream as a parameter Methods in BufferedReader: read(): read word by word read(char[] ch) reads the length of an array a ...

Posted by whitsey on Thu, 19 May 2022 12:03:45 +0300