包含标签：Java 的文章
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About Preparedstatement Addbatch() method (transfer)
There is not much nonsense about the difference between a statement and a Preparedstatement. Let's directly talk about…… -
Suggestions for novices to learn java
Many friends are asking me the same question: how can novices learn java well I made a simple summary to share with yo…… -
Analysis of Java garbage collection mechanism
In C + +, the memory occupied by objects will be occupied until the program ends running, and cannot be allocated to o…… -
Detailed explanation of SSM framework construction
SSM (Spring + springmvc + mybatis) framework set is composed of three open-source frameworks: spring, springmvc and my…… -
The pits stepped on using Java’s ArrayList
During normal development, ArrayList is frequently used, but it is easy to step on the pit if you are not careful. Rec…… -
Spring boot realizes dynamic switching of multiple data sources
I Multi data source switching 1. In the configuration file, configure three different data sources as follows (the pro…… -
Realize the mutual conversion of HTML and word (with pictures)
Spring boot and Maven are used at the back end of the project, and ckedit rich text editor is used at the front end. A…… -
Java reads network pictures, stores them locally and generates thumbnails
Previously, python crawler was used to capture movie website information as the data source of its own website. The pi…… -
Analysis of exception handling mechanism
The Java language provides an exception handling mechanism. Exceptions are used frequently in daily coding, while erro…… -
[reprint] overview of how spring security works
Security principle analysis Spring security filter chain Spring security flowchart Process description Security config…… -
Analysis of indexfor method in HashMap
When sorting out the working principle of HashMap, it is found that it calls the indexfor (int h, int length) method t…… -
Three methods of eliminating redundant code developed in Java
I Using factory mode + template method mode Let's take cake making as an example to demonstrate how to eliminate dupli…… -
Analysis of java thread pool
I Benefits of thread pooling II Java thread pool parameter parsing III Java thread pool workflow IV Common thread pool…… -
Analysis of Java collection class
java. util. Collection is a top-level interface of a collection class. It provides general interface methods for opera…… -
Springboot integration activiti6
Database: MySQL IDE：Spring Tool Suite Build tool: maven Project version: springboot1.0 5.10 + JDK1. 8 + Maven3. 0.5 (…… -
Spring data JPA complex multi condition query
I Sorting and paging // 排序 Direction direction = Direction.DESC; //directionStr为前端传值，asc…… -
Upload the picture to qiniu cloud and return the picture URL
When developing projects, we often use the function of uploading pictures. If all the pictures are stored under the pr…… -
Java proxy mechanism (static proxy and dynamic proxy)
I Concept of agent Provide a proxy for an object to control access to the object. Proxy classes and delegate classes h…… -
How HashMap works in Java
HashMap implements the map interface. It is an asynchronous implementation based on hash table. It stores elements in …… -
On the classpath setting of Java
Original address: http://www.blogjava.net/macinter/archive/2006/10/19/76099.html The following is reproduced from sun'…… -
Configure Apache + Tomcat to support multiple applications, that is, multiple secondary domain names
1. Environment Apache2. 0.43. 0 Tomcat 4.1. thirteen mod_ jk-2.0. forty-three jdk 1.4 Windows 2003 Key file location: …… -
Java version meaning
J2: 2 here represents the second generation Java platform J2EE: Java 2 Enterprise Edition j2se: java 2 standard editio…… -
F5 Apache Web takes the user’s real IP
The application environment is as follows: F5 load balancing 16 Apache, then switch to 4 Weblogic in the background, a…… -
Apply middlegen to generate at the same time Java and hbm. XML file
At the beginning of studying hibernate, I tried to use middlegen to generate according to the database structure for t…… -
If struts is used to realize dynamic (indefinite number) multi file upload?
A few days ago, I encountered a problem such as the problem description and asked for the effect like the attachment o…… -
Apache + weblogic10g get the actual IP address of the customer
In Apache 2 In the 2 + Weblogic 10g integration system, Apache will wrap the request object and attach some header inf…… -
Automatic completion of copyright notice and class annotation in java development
In Java project development, it is inevitable to add some copyright notices or class comments to the coded files. If t…… -
Open source blog roller2 1. Establishment process of source code project
[keyword]: open source blog roller v2.1 project establishment and release [note]: I use MySQL and Tomcat 5.0 resources…… -
Use the InetAddress class to determine the special IP address
IP addresses are divided into ordinary addresses and special addresses. Ten methods provided by InetAddress class are …… -
MyEclipse SVN modifying user name and password
Transferred from: http://crazycat03.javaeye.com/blog/358081 Since there is no place for us to directly change the user…… -
Analysis and solution of failure of struts 2 date conversion on win10
New win10 operating system with ie11 and edge. A project developed uses struts 2, which has no problem running develop…… -
JBuilder runs slowly (XML, web module)?
For a while, when opening a web module or XML file in jbuilderx, JBuilder became very slow, or the web module and XML ……