What java does by default
This is a basic class source file
public class Demo {
public static void main(String[] args) {
System.out.println("HelloWorld!");
}
}
Decompiled
# javap -c Demo
Compiled from "Demo.java"
public class Demo extends java.lang.Object{
public Demo();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang/Object."<i ...
Posted on Sun, 19 Apr 2020 08:33:07 -0400 by callmubashar
Spring learning tour (2) create the spring framework java Web project quickly
Compiler: eclipse
1) Create Web project: Spring Web HelloWorld
2) Import the required jar package:
3) Create entity class: the same as the previous blog
4) Create the configuration file hellobean.xml. Same as the previous blog
Note, however, that the location of the configuration file in this project is in the WebContent directory.
5) Instanti ...
Posted on Fri, 03 Apr 2020 15:51:34 -0400 by CrusaderSean
Practical application of filters (encoding, sensitive words, compression filters)
Article Directory
Preface
Coding filter
Develop filters
Enhance request object
Sensitive Word Filter
Compressed Resource Filter
Enhanced response object
Filter
test
Summary
Preface
The definition of filters and the simple use of filters have been preliminarily introduced in the previous chap ...
Posted on Wed, 01 Apr 2020 12:52:51 -0400 by newjsguy
Filter, listener, interceptor
Connection among filter, listener and interceptor
Filter
Mainly used to preprocess user's request
Through Filter technology, we can manage all resources of Web server (such as jsp, html, static resource file, etc.) and intercept them, so as to realize some special functions (such as implement ...
Posted on Tue, 17 Mar 2020 04:13:08 -0400 by abushahin
SpringMVC error: HTTP Status 405 - JSPs only permit GET POST or HEAD
In a recent article in the JavaEE series, there were some problems writing REST-style URL s for Spring MVC. Here is some code.
index.jsp page code:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
& ...
Posted on Sat, 14 Mar 2020 20:30:15 -0400 by DrTom
00 01 Ajax learning II of Java Web
Article directory
1 ajax first example: helloworld
2 ajax second example: send POST request
3 ajax example 3: whether the user name is registered
4 ajax example 4: the response content is xml
5 the fifth example of Ajax: provincial and municipal linkage
1 ajax first example: helloworld
Server co ...
Posted on Wed, 11 Mar 2020 03:52:18 -0400 by busnut
Operands and forms of components of JavaScript
Article directory
1. Components of JavaScript
2. Operate BOM object
1).Window
2) . navigator
3).screen
4).location
5).document
6).history
3. Operate DOM object
1) . get dom node
2) . update node
3) . insert node
4) . delete node
4. Operation form
1. Components of JavaScript
JavaScript consti ...
Posted on Mon, 10 Feb 2020 10:00:39 -0500 by Kerry Kobashi
Getting started with Spring MVC demo
(1) New Spring project
(2) Add the required jar package
spring's 5 + 2:
spring-core.jar
spring.beans.jar
spring-context.jar
spring-expression.jar
spring-aop.jar
spring-web.jar
spring-webmvc.jar
(these two jar packages are spring mvc's)
Two web applications:
servlet.jar
jsp.jar
The names of these two packages are various. ...
Posted on Wed, 29 Jan 2020 05:48:07 -0500 by nick314
EL custom function of javaweb
1. What is EL custom function
EL custom function is a static method of a java class called in EL expression. This static method needs to be configured in web application before it can be called by EL expression. El custom function can extend the function of El expression and let El expression complete the function that ordinary java program cod ...
Posted on Tue, 10 Dec 2019 16:25:51 -0500 by jkmcgrath
Spring MVC response view
Complete project case: springmvc.zip
Catalog
Example
In addition to relying on spring webmvc, you also need to rely on Jackson databind (used to transform json data format)
<dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.6</versi ...
Posted on Sun, 08 Dec 2019 19:02:39 -0500 by peDey