SpringMVC(一) 初识SpringMVC 简单搭建

谁践踏了优雅 2023-05-31 02:48 12阅读 0赞

**1. 首先使用eclipse工具，右键创建一个maveng web工程**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI2MDE2NDc_size_16_color_FFFFFF_t_70][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI2MDE2NDc_size_16_color_FFFFFF_t_70 1][]

**2.配置pom文件，引入所需jar包**

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>MySpringMVC</groupId>
      <artifactId>MVC</artifactId>
      <packaging>war</packaging>
      <version>0.0.1-SNAPSHOT</version>
      <name>MVC Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>3.8.1</version>
          <scope>test</scope>
        </dependency>
        <dependency>
        	<groupId>org.springframework</groupId>
        	<artifactId>spring-web</artifactId>
        	<version>5.1.8.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>5.1.8.RELEASE</version>
        </dependency>
        <dependency>  
          <groupId>javax.annotation</groupId>  
          <artifactId>jsr250-api</artifactId>  
          <version>1.0</version>  
        </dependency> 
      </dependencies>
      <build>
        <finalName>MVC</finalName>
      </build>
    </project>

**3.配置web.xml文件**

<web-app xmlns="http://java.sun.com/xml/ns/javaee"  
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
            xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"  
            version="3.0">
        <servlet>  
            <servlet-name>spring-mvc</servlet-name>  
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            
        </servlet>
        <servlet-mapping>  
            <servlet-name>spring-mvc</servlet-name>  
            <url-pattern>/</url-pattern>  
        </servlet-mapping>
    </web-app>

**注意：**1) 注释区域是可以自定义一个springmvc.xml配置文件

2) 或者采用 <servlet-name> 标签中的spring-mvc-servlet.xml

3) <servlet-mapping> 表示拦截模式，/ 表示对于所有的请求的拦截，包括静态资源如html, js, jpg等

**4.在WEB-INF文件下创建spring-mvc-servlet.xml，并添加配置信息**

**注意：**<bean id="viewResolver" > 视图解析器，把返回的动作映射到views/下的jsp页面上

**5. 在src/main/java 中创建com.springmvc.controller.login.java 文件**

package com.springmvc.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    public class login {
    
        @RequestMapping(value="/Login")  
        public String login(Model model){  
            model.addAttribute("message", "Hello World!!!");  
            return "login";  
        }
    }

6. 在WEB-INF文件下创建views/login.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
        pageEncoding="ISO-8859-1"%>
    <!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=ISO-8859-1">
    <title>Insert title here</title>
    </head>
    <body>
    <h1>message:${message}</h1>  
    </body>
    </html>

**7.启动服务，访问[http://localhost:8080/MVC/Login][http_localhost_8080_MVC_Login]**

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI2MDE2NDc_size_16_color_FFFFFF_t_70 1]: /images/20230531/a0a426dd7b6343fe96f30f94d11ef0f9.png
[http_localhost_8080_MVC_Login]: http://localhost:8080/MVC/Login