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* SpringMVC概述
* Spring web mvc和Struts2都属于Web层(控制层)的框架,它是Spring框架的一部分,我们可以从Spring的整体结构中看得出来: 不需要和spring整合
* Web 三层架构
Web层 服务层 数据层
C
V
* MVC 架构
M V C
* Hello SpringMVC
* 创建maven工程,骨架webapp
* 添加依赖
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.18.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
* 在web.xml配置DispatcherServlet(SpringMVC 的前端控制器)
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Hello SpringMVC</display-name>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
* 自定Controller
public class HelloController implements Controller {
@Override
public ModelAndView handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {
ModelAndView modelAndView=new ModelAndView();
modelAndView.addObject("name","xiaohei");
modelAndView.setViewName("hello.jsp");
return modelAndView;
}
}
* 配置springmvc.xml 文件
<?xml version="1.0" encoding="UTF-8"?>
<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"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<bean name="/hello.do" class="springmvc.controller.HelloController"/>
</beans>
* 页面
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
<title>Hello SpringMVC</title>
</head>
<body>
<h1>HelloWorld ${name}</h1>
<h1>123</h1>
<h1>345</h1>
</body>
</html>
* 在浏览器访问
* 防止外界访问jsp页面
<!--配置SpringMVC视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsps/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
public class HelloController implements Controller {
@Override
public ModelAndView handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {
ModelAndView modelAndView=new ModelAndView();
modelAndView.addObject("name","xiaohei");
modelAndView.setViewName("hello");
return modelAndView;
}
}
* 注解的开发形式
@Controller
public class TestController {
@RequestMapping("/test1.do")
public ModelAndView test1(){
ModelAndView modelAndView=new ModelAndView();
modelAndView.addObject("name","xiaobai");
modelAndView.setViewName("hello");
return modelAndView;
}
}
在springmvc.xml 配置扫描包
<context:component-scan base-package="springmvc"/>