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简单易懂的spring例子

技术2022-05-11  0


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test.java package my; public class test { private String helloWord = "Hello!World!"; public void setHelloWord(String helloWord) { this.helloWord = helloWord; } public String getHelloWord() { return helloWord; } } web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>pro1</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <context-param> <param-name>contextConfigLocation</param-name> <!-- 配置加载的bean factory xml --> <param-value> WEB-INF/bean.xml </param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app> bean.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING/DTD BEAN/EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <beans> <bean id="helloBean" class="my.test"> <property name="helloWord"> <value>successful!</value> </property> </bean> </beans> index.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <%@ page import="my.test"%> <%@page import="org.springframework.beans.factory.BeanFactory"%> <%@page import="org.springframework.web.context.WebApplicationContext"%><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <% BeanFactory beanFactory = (BeanFactory) pageContext .getServletContext() .getAttribute( WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE); test hello = (test) beanFactory.getBean("helloBean"); out.print(hello.getHelloWord()); %> </body> </html>


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