Recent Posts
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Java export JSON format file sample code
This article introduces the sample code of Java exporting JSON format files and shares it with you. The details are as…… -
Detailed explanation of simple factory pattern of Java design pattern
Simple factory mode: a factory object determines which kind of instance to create. 1. Abstract class 2. Specific categ…… -
Typical case of java interface implementation
No more nonsense, go straight to the code The above typical case of java interface implementation is all the content s…… -
An example of stack and queue in Java data structure
An example of stack and queue in Java data structure Stack and queue are two important linear data structures, which s…… -
Method of converting excel table into JSON by Java
Today, a friend of mine asked me if there was any way to use Excel and JSON everywhere. I found several tools on the I…… -
Java polymorphism definition and usage examples
This article describes the definition and usage of Java polymorphism with examples. Share with you for your reference,…… -
Java9 Learning Series how to run java9 in docker
Preface @ h_ 419_ 5@ This article will give you a detailed introduction to how to run java9 in docker, and share it fo…… -
Installation of java9 learning series and use of jshell
preface With the update of the standard Java version, developers can always get the desired functions from the upgrade…… -
Introduction to struts 2 intercepting string code
During development, we often encounter the problem that the string is too long and needs to be intercepted and display…… -
Solution to the problem that struts and servlet cannot coexist
In a project, if we use both struts 2 and servlet, we may not be able to access the servlet normally when the project …… -
Java implements a tool class instance that translates digital dates into English words
This example describes the Java implementation of the tool class to translate digital dates into English words. Share …… -
SSM framework construction graphic tutorial (recommended)
I've been thinking about building an SSM framework for a long time. It's convenient for me to use it in the future. Ho…… -
Spring boot method for reading static resource files
1、 Demand scenario Sometimes we need to use some static resource files in the project, such as the city information f…… -
Java design pattern – proxy pattern (example explanation)
Proxy pattern is one of the most common design patterns in Java. Spring's AOP uses the proxy mode. Generally speaking,…… -
Detailed explanation of HBase and hive data synchronization
Hive's table data can be synchronized to impala. Generally, impala provides real-time query operations, such as time-c…… -
Simple use of zookeeper in Java
1、 Fundamentals of zookeeper The data model is as follows: The structure of zookeeper data model is very similar to U…… -
Analysis of exception handling mechanism in struts 2
Because an exception is thrown when the execute method of action is declared, we don't need to catch the exception in …… -
Detailed explanation of struts 2 using ognl to traverse map
I Code in action: mapaction java II Front end test page: testmap jsp Java code Attachment: the type of map is map <…… -
Introduction to Hadoop components
Install HBase First download the latest stable version of HBase http://www.apache.org/dyn/closer.cgi/hbase/ file:///ho…… -
Java calls 7zip to decompress an instance of the compressed package
preface Recent projects need to use the function of decompressing the package. The format of the compressed package gi…… -
Spring boot custom 404 error message method example
preface This article will give you a brief introduction to how to personalize 404 error information in springboot and …… -
Struts 2 dynamic result set code example
The dynamic result set can specify the page to jump to in the action (${} is an ojnl expression, not an EL expression)…… -
Java example of reading web page content
Java example of reading web page content The above code program reads the source code of a web page, including HTML an…… -
Android implementation of circular progress bar code
For reference: https://www.oudahe.com/p/26827/ Effect drawing first: Custom control: attendanceprogressbar The code is…… -
Android uses the camera provided by the system to realize the function of one click photography
Today's share is to use the camera provided by the system to realize the one click photographing function. -
Android uses the open source framework fresco to process images
About the advantages of fresco, let's Google by ourselves. It's too powerful and excellent. I can't hold this small bl…… -
Summary of Tinker integration practice of Android hot update open source project
preface Recently, Tinker was integrated into the project. At first, I thought that the integration would be relatively…… -
Use zxing to generate QR code in Android (support adding logo pattern)
Zxing is an open source library of Google, which can be used to generate and scan QR codes. This paper introduces the …… -
Android listview builds voting items that support single and multiple choices
introduction In android app development, we sometimes encounter the need to provide an option list for users to choose…… -
Android custom scroll selector instance code
Android custom scroll selector Achieve the effect of the picture The code is as follows When using, create an activity…… -
On state detection of Android portable hotspot and acquisition method of SSID
How to obtain the enabled status and SSID of WiFi hotspot? Open the WiFi manager.java source code to find the getwifia…… -
Four click events of Android button button
In this article, four click events of Android button button are shared for your reference. The specific contents are a……