SpringSource Javax Service JSP JSTL framework installation and configuration detailed explanation
SpringSource Javax Service JSP JSTL framework installation and configuration detailed explanation
Overview:
SpringSource is a set of development framework developed by Java applications, including technologies such as Javax Servlet, JSP and JSTL.This article will introduce how to install and configure the SpringSource framework in detail, and provide some example code to help readers better understand these technologies.
1. Install the Java development environment:
First, make sure that the Java development environment (JDK) has been properly installed.You can download the JDK version suitable for the operating system from Oracle's official website and install it in accordance with the guide.
2. Download and install the SpringSource framework:
On the official Springsource website, you can download the latest version of SpringSource framework.After downloading, install it according to the provided document.
3. Create a web project:
Create a new Java Web project with IDE (such as Eclipse or Intellij IDEA).When creating a project, select the SpringSource framework as the basic framework of the project.
4. Configure the service container:
In order to be able to run and test Web applications, the service container needs to be configured.Tomcat is a commonly used Servlet container that can be downloaded and installed from Apache's official website.Once the installation is completed, configure the Servlet container to the operating environment of the web project.
5. Configure web.xml file:
Open the web.xml file in the web project and add the following:
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
This code will be equipped with a Servlet called "Dispatcher" to map all requests to DispatcherServlet, which is spring.
6. Create Spring configuration file:
Create a Spring configuration file called "Spring-config.xml" in the web-inf directory of the web project, and add the following:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.example.controller"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
This code is configured with a viewplayer to analyze the JSP file.
7. Create Controller and JSP files:
Create a Java class called "HomeController" as a controller.In the controller, you can add some processing requests.For example:
package com.example.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class HomeController {
@RequestMapping(value = "/", method = RequestMethod.GET)
public String home(Model model) {
model.addAttribute("message", "Hello SpringSource!");
return "home";
}
}
In the web-inf/views directory of the web project, create a JSP file called "Home.jsp" and add the following:
html
<!DOCTYPE html>
<html>
<head>
<title>Home Page</title>
</head>
<body>
<h1>${message}</h1>
</body>
</html>
This code will show a simple page that shows the news of "Hello Springsource!".
8. Deploy and run web applications:
Deploy the web project to the previously configured Servlet container and start the server.Visit "http: // localhost: 8080/" in the browser, and should be able to see the displayed page and display the message "Hello Springsource!".
Summarize:
Through the introduction of this article, readers should understand how to install and configure the SpringSource framework and create a simple web application.This application uses technologies such as Javax Servlet, JSP and JSTL to show a simple page.Readers can further study and master the use of the SpringsSource framework by referring to these examples.
