Spring MVC + JSP 项目的配置流程，适合传统 Java Web 项目开发

下面是一个完整的 Spring MVC + JSP 项目的配置流程，适合传统 Java Web 项目开发

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🏗️ 项目结构概览

springmvc-jsp-demo/
├── src/
│   ├── main/
│   │   ├── java/
│   │   │   └── com.example.controller/
│   │   │       └── HomeController.java
│   │   ├── resources/
│   │   └── webapp/
│   │       ├── WEB-INF/
│   │       │   ├── views/
│   │       │   │   └── home.jsp
│   │       │   └── web.xml
├── pom.xml

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⚙️ Maven 配置（pom.xml）

确保使用 war 打包方式，并添加 Spring MVC 依赖：

<packaging>war</packaging>

<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.3.30</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>4.0.1</version>
        <scope>provided</scope>
    </dependency>
</dependencies>

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🧩 web.xml 配置（注册 DispatcherServlet）

<web-app>
    <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/dispatcher-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

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🧠 Spring 配置文件（dispatcher-servlet.xml）

配置视图解析器和组件扫描：

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       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
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.example.controller" />

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

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🧾 控制器类（HomeController.java）

package com.example.controller;

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

@Controller
public class HomeController {

    @RequestMapping("/")
    public String home() {
        return "home"; // 对应 /WEB-INF/views/home.jsp
    }
}

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🖼️ JSP 页面（home.jsp）

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Spring MVC + JSP Demo</title>
</head>
<body>
    <h1>Hello, Spring MVC + JSP!</h1>
</body>
</html>

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🚀 部署方式

1. 使用 Tomcat 部署 war 包
2. 访问 http://localhost:8080/springmvc-jsp-demo/ 即可看到页面

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