Java
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Java POI technology, reading and writing excel [2003-2007, 2010]
In the previous blog: I introduced the related operations of reading excel with POI technology in Java Read excel and …… -
Programmers, let’s write the front-end code
You can think of me as an extreme person, just as many people focus on their own fields and disdain other "superficial…… -
Java API operation of Hadoop 2-hbase
HBase provides rich Java APIs and thread pool operations. Let me use thread pool to show how to use Java API to operat…… -
Java Web Development_ Realization of shopping cart function
I haven't touched the shopping cart before, and I don't know what to do with the shopping cart, so I queried a lot of …… -
Hibernate learning notes 2
Hibernate mapping One to many, one to one, many to many One to many mapping Common attributes of the set element …… -
Java copy, move, and delete files
< H2 id = "% E5% A4% 8D% E5% 88% B6% E6% 96% 87% E4% BB% B6% EF% BC% 9A" > copy file: < div class = "cnblogs_…… -
Write your own automatic code generation tool_ Java version_ Source download
That is, generate corresponding Dao, daoimpl, service, serviceimpl and other classes for each bean. The following is a…… -
My Notepad
I have spent near more two weeks to write this Notepad application. At this moment,I want to share with you. I wonder …… -
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Rookie growth
I suddenly found that yesterday (20-03-2016) was the fifth anniversary of my entering the circle. The time suddenly re…… -
Java’s POI technology to read and import Excel
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Query on “minimizing repeated calculation of variables in the for loop”
In the following article: Described in '': Operation effect: a. b. c. d. Summary: a lot of data has been tested, indic…… -
Java reflection – dry goods
After reading many articles on java reflection, I summarized what I saw. Help yourself and others more or less. First,…… -
Blog Garden_ Insert code (recommended)_ Button function realization_ Code highlights
Operation effect: : preparation 1. Download SyntaxHighlighter_ 1.5. 1.rar Download address: After decompression, D…… -
Urlrewriter in Java (URL rewriting)_ Source download
Recently, I used URL rewriting in a project. How to enhance the readability of the address in your website and let the…… -
Java POI technology to read Excel data to MySQL
This blog is to introduce the POI technology in Java, read Excel data, and then save it to MySQL data. You can also le…… -
java_ Free blocks (static and non static blocks)
There are two types of free blocks in Java: Static and non static blocks Static block: Non static block: Test Demo: Co…… -
Java Web – Filters
《 Application of Java Web development technology - filter < p class =" best text mb-10 "> a filter is a program…… -
A demo tells you the power of the optimization algorithm
The demo here is an accumulation algorithm, such as 1,2,3,4 n That is: sum = 1 + 2 + 3 + 4+ n; We can do this: Another…… -
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L1 cache in Hibernate
HibernateTest. java code: Operation effect: As we will see, only one select statement is used here. But we read two re…… -
Introduction to algorithm – binary search algorithm
Algorithm premise: The algorithm idea is: 1. Compare the middle value in the array with the searched value each time 2…… -
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Maven with Multi-module
Well,A project made of multi modules. For example,the hongten-security project,the structure of the hongten-security p…… -
Whether the list record in Java exactly matches the method
Today I want to talk about grouping the list and then encapsulating it with map. Maybe you still have some ambiguity a…… -
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Java uses POI to import data from database into Excel
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PBE_ Password based encryption_ You can also have
In a blog called: PBE - password based encryption is mentioned in. I also tested it. Now I'll show you the effect of m…… -
Java programming_ socket_ Socket_ Network programming
For the server, use ServerSocket to listen to the specified port. The port can be specified at will (since ports below……