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创建一个SpringMVC

pipu 2022-04-01 阅读 44


一、创建一个SpringMVC(非注解)

SpringMVC原理图

创建一个SpringMVC_前端

一、创建SpringMVC项目

创建一个SpringMVC_java_02

创建一个SpringMVC_java_03

创建一个SpringMVC_intellij-idea_04

二、配置web.xml 文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<!--配置前端控制器开始 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 加载springMVC.xml-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>

<!-- 启动加载 -->
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<!--访问以。action结尾的文件 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

三、创建springmvc.xml

创建一个SpringMVC_java_05

1.springmvc.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"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">

<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>

<!--配置视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>

<bean id="/hello" class="com.kuang.controller.HelloController"></bean>
</beans>

2.Controller

package com.kuang.controller;

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

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

public class HelloController implements Controller {

public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {
// TODO Auto-generated method stub


//封装页面的地址以及传的页面数据
ModelAndView modelAndView =new ModelAndView();
modelAndView.addObject("msg","HelloSpringMVC"); //封装数据

modelAndView.setViewName("hello"); //拿到数据以后跳转的路径 会进行拼接/WEB-INF/jsp/hello.jsp
return modelAndView;
}
}

创建一个SpringMVC_前端_06

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
${msg}
</body>
</html>

3.tomcat

创建一个SpringMVC_xml_07

四、运行结果

创建一个SpringMVC_java_08

注意:如果项目未找到

创建一个SpringMVC_前端_09

二、SpringMVC-注解

1.web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<!--配置前端核心控制器开始 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 绑定springMVC.xml-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>

<!-- 启动级别1 -->
<load-on-startup>1</load-on-startup>
</servlet>
<!--
/:匹配所有的请求,不包括jsp页面
/*:匹配所有的请求,包括jsp页面
-->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<!--访问以。action结尾的文件 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

2.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: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-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

<!-- controller扫描 -->
<context:component-scan base-package="com.kuang.controller" />

<!--让springmvc不处理静态资源-->
<mvc:default-servlet-handler/>

<mvc:annotation-driven/>

<!--配置视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/jsp/"></property>
<!--后缀-->
<property name="suffix" value=".jsp"></property>
</bean>
</beans>

3.controller

package com.kuang.controller;


import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class helloController {
@RequestMapping("/hello")
public String hello(Model model){
//封装数据
model.addAttribute("msg","HelloSpring");
return "hello";
}
}

好了,今天的分享就到这里了

创建一个SpringMVC_前端_10



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