Java
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Three ways for Java to traverse collections
For traversing a collection to get its objects, three simple ways are summarized here Method 1: change the collection …… -
URL Rewrite URL explanation and example
UrlRewrite rewrite URL details UrlRewrite is what we usually call address rewriting. All users get are processed URL a…… -
A pagination plug-in that explains mybatis extremely simple (good) single (use)
Note: this blog is completely different from the current paging plug-in, so it is recommended that you check the lates…… -
Java zxing generates QR code and bar code instance sharing
1. Jar package: zxing-core-3.3 0.jar http://mvnrepository.com/artifact/com.google.zxing/core ZXing-jav…… -
What is java annotation and its principle are introduced in detail
Principles of Java annotations Java: annotation usage, https://www.oudahe.com/p/23180/ What is annotation Annotations …… -
Using java to realize serial communication
1. Introduction The serial communication program implemented in Java supports the sending and receiving of hexadecimal…… -
JDBC type data types commonly used by mybatis
Mybatis passes the contained JDBC type Javatype and JDBC type correspondence and crud examples in mybatis Corresponden…… -
Characteristics and advantages of mybaits
What is mybatis and what are its characteristics? Let's introduce the concept and characteristics of mybatis. Advantag…… -
Java servlet mobile app access interface (III) Gaode map cloud storage and retrieval
This essay about Gaode map will be a little more, 1、 Business description There are two types of members in the corre…… -
Java implementation method of Bloom filter
The principle of Bloom filter is very simple: hash a string into an integer key, and then select a long bit sequence, …… -
Java online book Mall (7) order module 2
This example shares the specific code of the order module of java online book Mall for your reference. The specific co…… -
Using java to generate letter verification code
This example shares the specific code of generating letter verification code in Java for your reference. The specific …… -
Detailed explanation of Java integrated Alipay payment interface (JSP+ Alipay 20160912)
Make complaints about: Alipay's interface and WeChat's DEMO and documents are really hard to understand and out of ord…… -
Java online book Mall (3) book module
This example shares the book module code of java online book Mall for your reference. The specific contents are as fol…… -
Java method for deleting all contents under the specified folder (including this folder)
As follows: The above Java method to delete all the contents under the specified folder (including this folder) is all…… -
Use calendar in Java to calculate the number of days and weeks between two dates
preface What exactly is a calendar? The Chinese translation is the calendar, then we can immediately think that there …… -
Detailed explanation of Java executorservice usage
The following example mainly discusses two problems: problem 1 The thread pool has a fixed size, which is assumed to b…… -
Jdk1. 8 detailed introduction to the implementation principle of HashMap
HashMap overview HashMap is an asynchronous implementation of map interface based on hash table. This implementation p…… -
Java Swing implementation tab function (jtabbedpane) example code
Swing implements tab function (jtabbedpane) First create a jtabbedpane object. The constructor can use jtabbedpane (in…… -
Detailed explanation of wechat payment H5 call payment (Java version)
Recently, WeChat paid for the project, and then paid the WeChat official account. Though it is not difficult, details …… -
Server push chat room instance based on tomcat7, Java and websocket
preface HTML5 websocket realizes the two-way communication between the server and the browser. The two-way communicati…… -
Java online book Mall (8) order module 3
Continue with the previous article. 3. Query order details OrderServlet desc.jsp 4. Cancel order and confirm receipt T…… -
Java implements a simple red envelope grabbing algorithm (simulating real red envelope grabbing)
I have nothing to do. Recently, the project needs to write the user login home page to send a cash red envelope. There…… -
Java realizes sending SMS verification code using a third-party platform
A small project I did some time ago involves the problem of logging in and registering with SMS verification code. I h…… -
The RSA public-private key generated by Java OpenSSL for data encryption and decryption is introduced in detail
The RSA public-private key generated by OpenSSL is used for data encryption and decryption in Java What is RSA: RSA pu…… -
Java online mall project part 1 user registration module
This article explains the user registration module of the mall project for your reference. Let's take a look at the re…… -
Explain the pattern class and matcher class in Java regular expressions in detail
preface This article will introduce the pattern class and matcher class in Java regular expressions. First, we need to…… -
Java timer and timer instance code used in thread pool
Java timer timer Simple example code: Timer in thread pool Thank you for reading, hope to help you, thank you for your…… -
Explain the socket chat program based on Java – client (with demo)
Write before: Last weekend, I took some time to record the initial design of a simple socket chat program I wrote and …… -
Explain the pattern class and matcher class in Java regular expressions in detail
preface This article will introduce the pattern class and matcher class in Java regular expressions. First, we need to…… -
Detailed explanation and example code of obtaining file size in Java
Java get file size Today, when writing code, you need to realize the function of obtaining file size. At present, ther…… -
Maven pom. XML and settings XML explanation
pom. XML and settings xml pom. XML and setting XML, which can be said to be the two most important configuration files……