包含标签：Java 的文章
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Java connection to MySQL database
Several methods of Java connecting to database *Explain 1. Take MySQL database as an example 2. There are fo…… -
java_ How custom labels work
I How custom labels work: Web server JSP 3 When a custom tag is encountered, first instantiate the tag processor class…… -
JSTL_ XML tag library
JSTL_ XML 1： Explain 2： XML tag library The main function of XML tag library is to provide convenient support for op…… -
java_ Custom tag, my first custom tag!
Custom tag, my first custom tag! There are two steps altogether I case Output client IP ViewIP. jsp -
Java_ IO stream_ abstract class
< p align = "left" > I concept III Character stream and byte stream and file 1. Byte stream Input stream Out…… -
struts2_ Project operation report 404
1. Missing jar package, commons-lang3-3.2 jar Reference website: https://blog.csdn.net/u013457382/article/details/5097…… -
struts2_ HelloWorld
First struts 2 program - Hello 1. Create web project struts2-01-hello 2. Import the jar package into the bin d…… -
java_ generic paradigm
I Use of generic classes 1. Use generics when defining classes 2. be careful: 3. Code example -
Java_ Bubble sorting_ Principle and optimization
Bubble sorting and its optimization I Principle and optimization principle 1. Principle explanation Bubble sorting…… -
struts2_ Is struts 2 thread safe?
Thread safety: multiple threads execute concurrently in a process. During thread execution, the variable values are th…… -
JSTL_ Core tag library
I explain 2： Core tag library The core tag library provides the general functions required for JSP page programming. …… -
struts2_ Struts 2 basic configuration
Basic configuration 1. Create a new web project 2. Import the jar package. Download the jar package required by stru…… -
Java Web Series: Fundamentals of Java Web projects
1. Java web module structure JSP files are similar to axpx files. Paths and URLs correspond to each other one by one a…… -
Basic use of Java enumeration classes
Enum type is a new feature in Java 5. It is a new type that allows constants to represent specific data fragments, and…… -
Java Web Series: JDBC Foundation
ADO. Net in Java is the enterprise library dataaccessapplicationblock module, the module in Java, and the orm of entit…… -
Java Web Series: JAAS authentication and authorization Foundation
1. Overview of certification and authorization (1) Authentication: authenticates the user's identity. . Net based RBS …… -
JAVA Chinese garbled code
1. In MyEclipse, you can set the file encoding format, but when we use scanner to type, because Windows uses GBK encod…… -
Detailed summary of transaction in Java
< H4 id = "1 what is a Java transaction" > < span style = "color: #3366ff;" > 1. What is a Java transactio…… -
Apache’s open source project – template engine (velocity)_ I started after two days of study_ Source download
First of all, if you don't know much about velocity, I suggest you go to the official Apache website This is the offic…… -
Cannot create PoolableConnectionFactory (Communications link failure)–Connection refused: connect
I encountered such an exception when I was working on a web project today: I know there was an error connecting to the…… -
Java development_ Summary of double precision loss
I saw such a question on the blog: Such a problem is the loss of precision of double in Java (or c#). Here is the solu…… -
Getalldeclaredmethods() method in httpservlet
Looking at apache-tomcat-7.0 When I saw the httpservlet in 40, I saw that the method getalldeclaredmethods () in it wa…… -
FreeMarker_ Template engine_ Automatic code generator_ Source download
First, let's meet FreeMarker You can go to freemaker's official website, where there is a very detailed introduction: …… -
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Is the result of adding char type and int type in Java char type or int type?
At first glance, you may have a question: can these two add up? The answer is to see the effect: Seeing this operation…… -
Original Java shell
If you have been exposed to Windows operating system, you should have a certain understanding of CMD in windows. If yo…… -
There is such a way to remember words_ Java version of irregular verbs_ Recommended by bloggers
Yesterday, when I was reading the irregular verbs in an English book, I had a sudden inspiration: I want to use the pr…… -
KMP algorithm (wool chip algorithm)
Here is the original text of KMP algorithm: According to the original understanding, I modified it to the Java version…… -
Java recursively reads all file names under the file path and saves them as TXT documents
<svg xmlns="http://www.w3.org/2000/svg" style="display: none;"><path <a hr…… -
ArrayList, LinkedList, vector – Dudu: the most detailed in history
ArrayList, LinkedList, vector - Dudu: the most detailed in history Let's compare ArrayList, LinkedList and vector. T…… -
Generating XML files using java
《 XML in the eyes of Java -- File Writing There are four ways to generate an XML file in Java. 1. Generate XML docum…… -
Java access control
Java provides four access rights: Public > protected > package access rights (no keywords) > private Packages……