Spring MVC 初尝试

约定不等于承诺〃 2022-05-26 00:58 188阅读 0赞

刚开始学习Spring MVC,之前了解过MVC模式,因此学习这个的时候,也不是那么困难.先上代码:

项目文件目录:

![70][]

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">
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/applicationContext.xml</param-value>
        </context-param>
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <servlet>
            <servlet-name>dispatcher</servlet-name>
            <servlet-class>
                org.springframework.web.servlet.DispatcherServlet
            </servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>WEB-INF/Spring-mvc-servlet.xml</param-value>
            </init-param>
        </servlet>
    
        <servlet-mapping>
            <servlet-name>dispatcher</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    </web-app>

Spring-mvc-servlet.xml:

package controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    
    /**
     * @author myvina@qq.com
     * @date 18-4-20 下午6:54
     */
    
    @Controller
    public class Login {
        @RequestMapping("/login")
        public String index(Model model) {
            model.addAttribute("greetings", "Hello, Spring!");
            return "home/login";
        }
    
        @RequestMapping("/doLogin")
        public String doLogin(@RequestParam("name") String name,
                              @RequestParam("password") String password, Model model) {
            model.addAttribute("name", name);
            model.addAttribute("password", password);
            return "home/welcome";
        }
    }

<%--
      Created by IntelliJ IDEA.
      User: vina
      Date: 18-4-20
      Time: 下午6:56
      To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>HomePage</title>
    </head>
    <body>
        <h2>${greetings}</h2>
        <form action="/doLogin" method="get">
            <input type="text" name="name">
            <br>
            <input type="password" name="password">
            <br>
            <input type="submit" value="登录"/>
        </form>
    </body>
    </html>

Welcome.jsp

<%--
      Created by IntelliJ IDEA.
      User: vina
      Date: 18-4-22
      Time: 上午9:25
      To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>Welcome</title>
    </head>
    <body>
    <h1>${name}, welcome.</h1>
    <h1>Your password is ${password}</h1>
    </body>
    </html>

以上就是对Spring MVC的一次初尝试.

(本人觉得[这篇博客][Link 1]讲解得非常好)

[70]: /images/20220526/26295e7d179a47d1b30a38c2c2ea4493.png
[Link 1]: https://www.cnblogs.com/Ming8006/p/6346712.html?utm_source=itdadao&utm_medium=referral