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Javaweb三大组件及环境特点
Spring整合web环境的思路及实现
Spring的web开发组件spring-web
MVC框架思想及其设计思路 Javaweb三大组件及环境特点 Spring整合web环境的思路及实现 package com.xfy.listener;import com.xfy.config.SpringConfig;
import org.springfra…目录
Javaweb三大组件及环境特点
Spring整合web环境的思路及实现
Spring的web开发组件spring-web
MVC框架思想及其设计思路 Javaweb三大组件及环境特点 Spring整合web环境的思路及实现 package com.xfy.listener;import com.xfy.config.SpringConfig;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;public class ContextLoaderListenter implements ServletContextListener {private String CONTEXT_CONFIG_LOCATIONContextConfigLocation;Overridepublic void contextInitialized(ServletContextEvent servletContextEvent) {ServletContext servletContext servletContextEvent.getServletContext();String initParameter servletContext.getInitParameter(CONTEXT_CONFIG_LOCATION);
// initParameterinitParameter.substring(classpath.length());//1.创建Spring容器ApplicationContext applicationContextnew ClassPathXmlApplicationContext(initParameter);//2.将容器存入ServletContext中servletContext.setAttribute(applicationContext,applicationContext);}Overridepublic void contextDestroyed(ServletContextEvent servletContextEvent) {}
}public class WebAppLicationContext {public static ApplicationContext getWebAppLicationContext(ServletContext servletContext){ApplicationContext applicationContext (ApplicationContext) servletContext.getAttribute(applicationContext);return applicationContext;}
}WebServlet(urlPatterns /accountServlet)
public class AccountServlet extends HttpServlet {Overrideprotected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {ApplicationContext applicationContext WebAppLicationContext.getWebAppLicationContext(request.getServletContext());AcountService bean applicationContext.getBean(AcountService.class);bean.transforMoney(tom,lucy,500);} Spring的web开发组件spring-web Spring其实已经为我们定义好了一个ContextLoaderListener使用方式跟我们上面自己定义的大体一样 先导入Spring-web的坐标 dependencygroupIdorg.springframework/groupIdartifactIdspring-web/artifactIdversion5.2.5.RELEASE/version/dependencylistenerlistener-classorg.springframework.web.context.ContextLoaderListener/listener-class/listener ?xml version1.0 encodingUTF-8?
web-app
!-- 定义全局参数 --context-paramparam-namecontextClass/param-nameparam-valuecom.xfy.config.MyxfyApplicationContext/param-value/context-paramlistenerlistener-classorg.springframework.web.context.ContextLoaderListener/listener-class/listener
/web-app MVC框架思想及其设计思路
