Java
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Using java regular expression to verify mailbox and mobile phone number
Mainly using Java util. Regex class. -
Java encapsulated mail package to send e-mail class
The following code uses java mail package to encapsulate a class for sending mail Use examples The body can also be HT…… -
Analysis of memory leakage in Java
One of the most obvious advantages of AVA is its memory management mechanism. You simply create objects, and Java's ga…… -
Tutorial on dynamic SQL query of database in mybatis framework of Java
In fact, one of the powerful features of mybatis is usually its dynamic SQL capability. If you have experience in usin…… -
Java implementation of Oracle inserting current time
This paper describes the method of Oracle inserting the current time with Java. Share with you for your reference. The…… -
Java recursively traverses the tree structure
No more nonsense. I'll post the code directly to you. The specific code is as follows: PS: recursive traversal of Java…… -
Java random string tool class
1、 Generation of java random numbers In Java, there are three concepts of random numbers in a broad sense. 1. Through…… -
Four methods of Java ArrayList traversal and the usage of ArrayList class in Java
Four methods of Java ArrayList traversal and the usage of ArrayList class in Java PS: usage of ArrayList class in Java…… -
Multi table join query and query result paging are implemented in mybatis framework of Java
Realize multi table joint query Still on David mybatis. Create a new website class under the model package to persist …… -
Struts 2 in Java realizes simple file upload and download
1、 Struts 2 file upload the implementation of struts 2 file upload is very simple, which can be completed in a few si…… -
Method of generating excel file and inserting picture using Java in Windows
Generating simple Excel files in real office, we often have such a requirement: to open the report directly in Excel. …… -
Sharing of practical examples of java reflection mechanism
First, let's recognize several classes. Class(java.lang.Class) Class object is a special object. Each class has a clas…… -
Summary of Java Web servlet development (2)
1、 ServletConfig explanation 1.1. Configure servlet initialization parameters In the servlet's configuration file web…… -
Taking struts 2 as an example, Java introduces how to upload pictures
Generally speaking, there are two ways to upload pictures. One is to write picture files to the database, and the othe…… -
Large file upload example code based on HTML5 + java
No more nonsense. I'll post the code directly to you. The specific code is as follows: The HTML code is as follows: Th…… -
Implementation of file upload and download function with struts 2 in Java
Let's talk about the principle of uploading and downloading struts 2 files: Struts 2 is uploaded through the common fi…… -
Java wechat development API step 3 wechat obtains and saves interface call credentials
How wechat obtains and saves interface call vouchers is described below 1、 Description * Please refer to the first tw…… -
Easily handle IOS remote message push
1、 Introduction there are two ways to push messages in IOS: local push and remote push https://www.oudahe.com/p/16690…… -
Introduction to mastery of mybatis combat tutorial (Classic)
What is mybatis Mybatis is an excellent persistence layer framework that supports common SQL queries, stored procedure…… -
Summary of common problems such as xcode8 and ios10 adaptation (finishing)
With the update of IOS 10 and xcdoe 8, there are many problems. Today, Xiaobian takes the time to share the pits I enc…… -
Tutorial on building java + mybatis framework + MySQL development environment under Windows
Mybatis is a Java persistence framework that associates objects with stored procedures or SQL statements through XML d…… -
. Net platform to push IOS message
This paper gives an example Net platform. Share with you for your reference. The specific implementation steps are as …… -
Java method of generating random numbers
This paper describes the method of generating random numbers in Java. Share with you for your reference. The specific …… -
Example analysis of file upload and download function implemented by Java Web
In the development of web application system, file upload and download function is a very common function. Today, let'…… -
Java socket programming example (V) – NiO UDP practice
1、 Backhaul protocol interface and UDP implementation: 1. Interface: 2. Realize: 2、 NiO UDP client: 3、 NiO UDP serv…… -
Generation and use of graphical verification code for Java Web Development
This paper describes the generation and use of graphic verification code in Java Web development. Share with you for y…… -
Analysis of polymorphic usage examples in Java
This article illustrates the polymorphic usage in Java. Share with you for your reference. The specific analysis is as…… -
Java implements the image upload function by simulating the post submission form
This article describes an example of Java submitting a form by simulating post to realize the function of image upload…… -
Mybatis learning tutorial (6) – calling stored procedures
1、 Put forward demand Query the number of men or women. If 0 is passed in, it is a woman, otherwise it is a man 2、 P…… -
Learn the date and time processing in Java and the preparation of java calendar applet
Java in Java The util package provides a date class that encapsulates the current date and time. The date class suppor…… -
Analysis of java reflection mechanism
Reflection, that is, reflection, is an important feature of the Java language. We know that before using a class, we o…… -
Java generate image verification code example code
The articles on java image verification code have been updated recently to help you master the generation technology o……