包含标签：Java 的文章
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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…… -
Examples of Java annotations
Use of Java annotations @ h_ 403_ 3@ The use of annotation is very simple. You only need to mark an annotation where a…… -
Use of output stream outputstring() of Java IO stream
Fileoutputstream: subclass, write out the channel of data Steps: 1. Get target file 2. Create a channe…… -
An example of how Java uses GDAL to read and write shapefiles
Introduction to GDAL GDAL (geospatial data abstraction Library) is an open source raster spatial data conversion libra…… -
Java uses a custom class as the key value instance of HashMap
This is a classic question in Java and is often asked in interviews. In fact, many books or articles have mentioned th…… -
Detailed explanation of built-in functional interface of new features of Java 8
Java 8 new features built-in functional interface In a previous blog post lambda expression, we mentioned the function…… -
Detailed introduction to the four domain objects of JavaWeb
Java Web four domain objects 1) Attribute related methods 2) Domain object with the above attribute method The scope o…… -
Java adds a simple example of content at the end of the file
As follows: The above simple example of adding content to the end of java file is all the content shared by Xiaobian. …… -
Java Web image upload and file upload examples
Image upload is essentially the same as file upload, and the image itself is also a file. File upload is to upload pic…… -
Detailed explanation of author web page authorization of wechat development
In the development of wechat, there are often such needs: obtaining user avatars, binding wechat signals and sending i…… -
Understand the use of executorservice in Java multithreading
java. util. The concurrent package provides classes for multithreading operations. Executorservice and its implementat…… -
Spring mail sends mail via QQ mailbox server
Spring mail encapsulates the mail service of JavaMail, which makes the mail service easier to use. Next, take QQ mailb…… -
Java implementation of FTP file upload and download function example code
FTP is the English abbreviation of file transfer protocol, and the Chinese abbreviation is "Text Transfer Protocol". I…… -
Java servlet mobile app access interface (I) data encryption transmission verification
The previous essays on servlets sort out the simple use process of servlets. The next article will focus on the mobile…… -
Download pictures to simple instances of clients and servers according to the URL
1. Save to server Save to the server where the project is located according to the path. 2. Save to local Save locally…… -
Java JNI principle detailed introduction and simple example code
Java JNI principle JNI is an important function in the Java standard platform. It makes up for the lack of Java's plat…… -
Three methods of Java string interception (recommended)
As we all know, Java provides many ways to intercept strings. Let's take a look at some of them. 1. Split() + regular …… -
Detailed steps of using JDBC to connect to MySQL database in JSP
1. First enter the name of Web project in the new project text box, and then click next. 2. Click next to continue 3. …… -
Using zxing to generate two-dimensional code in batch in Java
Use zxing batch to generate QR code from the specified text content (link address, text, etc.) at the specified positi…… -
Mybatis insert and delete batch operations
When operating the database, you often encounter batch insert and batch delete. It's better to directly execute SQL st……