springmvc入门详解

首先,我们先写一个入门小案例,先熟悉一下springmvc是什么,了解一下springmvc的运行流程,对加强springmvc的深层理解有很大帮助

.第一步,创建一个maven项目:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="MyWebApp" version="2.5">
    <display-name>SpringMVC</display-name>
    
    <!-- SpringMVC的入口 -->
    <servlet>
        <servlet-name>SpringMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
        <!-- 
            默认加载配置文件：
            /WEB-INF/{servlet-name}-servlet.xml
         -->
    </servlet>
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <!--
            可选配置： 
            *.do、*.action
            /
            /xxx/*
            
            不可以：
            /*
         -->
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    
</web-app>

<?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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 定义handlerMapping -->
<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>

<!-- 定义适配器 -->
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>  

    <!-- 定义视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 前缀 -->
        <property name="prefix" value="/WEB-INF/views/"/>
        <!-- 后缀 -->
        <property name="suffix" value=".jsp"/>
    </bean> 
<!-- 定义Handler对象 -->
<bean name="/hello.do" class="com.j1.springmvc.controller.HelloController"/>
    
</beans>

package com.j1.springmvc.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

public class HelloController  implements Controller{

    @Override
    public ModelAndView handleRequest(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        ModelAndView mv =new ModelAndView();
        mv.setViewName("hellos");
        mv.addObject("msg","恭喜你,小逼崽子,第一个SpringMvc程序成功了");
        return mv;
    }

}

<%@ 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">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>${msg}</h1>
</body>
</html>

在浏览器输入:http://localhost:8080/myspring-demo/hello.do

效果如图所示:

至此一个入门记得springmvc就写好了.

使用注解

package com.j1.springmvc.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@RequestMapping("/hello2")
@Controller
public class Hello2Controller  {

@RequestMapping("/show")
public ModelAndView show(){
       ModelAndView mv = new ModelAndView();
       mv.setViewName("hello");
       mv.addObject("msg", "呀呀呀,恭喜你,小逼崽子,我的第一个注解Controller测试成功！");
       return mv;
}
    


}

SpringMVC-servlet.xml

<?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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 定义handlerMapping -->
<!-- <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean> -->

<!-- 定义适配器 -->
<!-- <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>   -->
    <!-- 注解驱动 -->
    <mvc:annotation-driven/>
    <!-- 定义视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 前缀 -->
        <property name="prefix" value="/WEB-INF/views/"/>
        <!-- 后缀 -->
        <property name="suffix" value=".jsp"/>
    </bean> 
<!-- 定义Handler对象 -->
<!-- <bean name="/hello.do" class="com.j1.springmvc.controller.HelloController"/>  -->
    
    <!-- 
        配置扫描器，使得@Controller注解生效
     -->
    <context:component-scan base-package="com.j1.springmvc.controller"/>
    <!-- 定义文件上传解析器 -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 设定默认编码 -->
        <property name="defaultEncoding" value="UTF-8"></property>
        <!-- 设定文件上传的最大值5MB，5*1024*1024 -->
        <property name="maxUploadSize" value="5242880"></property>
    </bean>
    
    
</beans>

在浏览中输入:http://localhost:8080/myspring-demo/hello2/show.do

http://jinnianshilongnian.iteye.com/blog/1594806

http://blog.csdn.net/kxd_ysheng/article/details/24471683

http://www.cnblogs.com/xujian2014/p/5235145.html

http://www.cnblogs.com/liusk/p/4195256.html

http://www.cnblogs.com/fangjian0423/tag/springmvc/

http://www.cnblogs.com/superjt/p/3309255.html

http://blog.csdn.net/kxd_ysheng/article/details/24690689

posted @ 2016-09-26 16:07 小啊菜鸡阅读(8089) 评论(4) 编辑收藏举报

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