Section 7. JSP and Java Bean
The basic concept of Java Bean and the use of Bean in JSP
In the process of software development, business logic and presentation layer should be separated as far as possible, so as to achieve complete decoupling, which is the basic concept of software layered design. In JSP, Java beans are often used to realize the core business logic, ...
Posted on Fri, 19 Nov 2021 09:35:16 -0500 by heybret
Servlet realizes file upload and download
Servlet realizes file upload and download
For file upload, the browser submits the file to the server in the form of stream during the upload process. It is troublesome to directly use Servlet to obtain the input stream of the uploaded file and then parse the request parameters. Therefore, the file upload component of apache's open source tool ...
Posted on Sat, 23 Oct 2021 06:46:58 -0400 by Smicks
Java Web Technology: Tomcat, servlet
catalogue
Tomcat:web server software
Servlet: an applet running on the server side
Implementation principle of Servlet
Life cycle method in Servlet
init (create): execute only once
service: execute multiple times
@WebServlet annotation
Architecture of servlet
http: Hypertext Transfer Protocol
Request message data format
Respon ...
Posted on Wed, 13 Oct 2021 09:30:14 -0400 by Jeff4507
Three Minutes Learn Java File Upload
Today, someone in the group happened to ask about Java file upload. Originally, this was the knowledge point inside Java, but my main focus now is on the JS part. But it's not a hassle anyway, I'll just post a post to talk about the basic implementation of Java file upload.
Say nothing but start.
The first step is to create a new blank web ...
Posted on Mon, 11 Oct 2021 12:02:51 -0400 by mubeena
IDEA creates maven project + spring MVC framework to complete the same functions as servlet
1, Create maven project First create the maven project.
Then set the project name and configuration address.
Finally, the project is created successfully. The file is shown below.
2, Add dependency Find the tag in pom.xml and add the dependency to it.
The code is as follows.
<dependency>
<groupId>junit< ...
Posted on Sun, 03 Oct 2021 16:41:01 -0400 by SiMiE
Talk about spring MVC
preface
Only a bare head can make it stronger.
The text has been included in my GitHub selected articles. Welcome to Star: https://github.com/ZhongFuCheng3y/3y
This spring MVC has been urged for a long time. This time, because of the integration of the system, it is very busy. I returned to the company early this weekend.
If you pay a ...
Posted on Sun, 24 May 2020 22:32:06 -0400 by buzzed_man
Using AJAX in struts 2
1, Output as stream using HttpServletResponse
Use the getWriter() method of HttpServletResponse to output PrintWriter directly in Action;
public class AjaxPrizeKindsAction extends ActionSupport {
private Logger logger = Logger.getLogger(AjaxPrizeKindsAction.class);
private IPrizeKindInfoService prizeKindInfoService;
@Override
public Stri ...
Posted on Sat, 02 May 2020 05:15:23 -0400 by bloom
Java Web (Struts framework) three ways for Struts to create Action
This series of blog posts has been uploaded to github based on the same project Portal
Java Web (Struts framework) three ways for Struts to create Action Portal
The core configuration of struts.xml, the dynamic method call and the processing of result set Portal
The configuration of Java Web (struts 2 Framework) Log4j and the solution to the ...
Posted on Fri, 24 Apr 2020 11:53:55 -0400 by Dark-Elk
Java single application - Architecture Mode - 03. Design mode - 15. Command mode
Original address: http://www.work100.net/training/monolithic-architecture-design-patterns-command-pattern.htmlMore tutorials: Beam cloud - free course
Command mode
Serial number
Chapter in text
video
1
Summary
-
2
Realization
-
Please refer to the navigation above for reading
1. overview
Command Pattern is a data-driven design patter ...
Posted on Fri, 13 Mar 2020 07:22:05 -0400 by jwilh
Basic learning of struts 2 Framework -- basic introduction
Overview of Struts
What is Struts
Struts2 is a Web application framework based on MVC design pattern, which is essentially a servlet. In MVC design pattern, Struts2 is used as controller to establish data interaction between model and view. Struts 2 is the next generation product of struts. It is a ...
Posted on Tue, 18 Feb 2020 04:41:11 -0500 by adamgram