Java
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struts2_ Struts type conversion
I In the servlet, the non string type submitted by the form needs to be converted manually 1. In struts, the commo…… -
Java_ Folder splitting and merging
I Idea: 1. Document cutting: The class RandomAccessFile is used, in which the method seek can customize the readin…… -
Java_ Queue interface
Queue interface 1. english A) queue B) deque, double Ender queue 2. Queue interface In addition to the basic c…… -
Java_ Collections tool class
Collections tool class * differences between collections and collections Collection interface (the implementation inte…… -
struts2_ struts. Explanation of XML configuration file
1.bean Bean detailed explanation: https://www.cnblogs.com/lulu638/p/4340703.html 2.constant Constant attribute configu…… -
JSTL_ Format tag library
JSTL_ Format 1： JSTL format tag library <%@taglib uri=” http://java.sun.com/jsp/jstl/fmt ” prefix=”fmt”%> 2： F…… -
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…… -
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 …… -
Detailed summary of transaction in Java
< H4 id = "1 what is a Java transaction" > < span style = "color: #3366ff;" > 1. What is a Java transactio…… -
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…… -
A pen test question
Today, I went to an interview with a foreign-funded company and encountered a test question The topic is as follows: H…… -
Maven’s first applet
Here is the first applet about Maven About Maven installation: First look at the directory structure: This is the orig…… -
Get the image file(s) some informations,Including the Make,Model,Date/Time,etc
This is a blog about how to get the image file(s) some informations. Including the Make,Model,Date/Tiime,etc. while,ho…… -
Java drawing program_ The picture is drawn with letters
Recently, I have been studying how to "draw" pictures with letters in text editing tools. You may not know what I want…… -
Lucene (full text search)_ Indexing_ Full text search by keyword_ Source download
： ： Add these two jar packages to the project build path Look at the project structure -
Java development_ Conversion of numbers to capitalization of RMB in Chinese_ Full version
This application comes from a sudden idea: see that the number on the invoice should be converted into the capital of …… -
Java Web Development_ Multi take / Taobao shopping cart selection
Look at the title. I think you will feel a little confused. Don't panic. Let's take a look at some examples first. It …… -
Using code to automatically generate packages in eclipse_ This function is very useful_ Java version
I did an experiment before, that is, I used code to automatically create a new package in eclipse, which was not imple…… -
For an algorithm with a running time of 100N * n, what is the minimum value of n to make it run faster on the same machine than an algorithm with a running time of 2 ^ n
In the first part of the introduction to algorithms, there is such an algorithm problem: Here are my own ideas for sol…… -
Java implements the transfer of txt files in any coding mode to UTF-8 coding mode
This paper uses BufferedReader and bufferedwriter in JDK to transfer txt files of any coding mode to UTF-8 coding mode…… -
The difference between get and post methods
In the process of submitting data from the form, the method attribute provides two values: get and post. The default i…… -
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Java development_ Quick search for local files_ Applet
This is an application running effect Then I had a whim. I had an application called: Why not modify its source code a……