SpringBoot整合SpringMVC全解析

Spring Boot 与 Spring MVC 的整合本质上是自动完成的，因为 Spring Boot 默认内嵌了对 Spring MVC 的支持。以下是关键要点：

核心机制：自动配置

Spring Boot 通过 spring-boot-starter-web 依赖自动配置 Spring MVC 的核心组件：

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>

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此依赖包含：

• DispatcherServlet（自动注册）
• 默认视图解析器
• 静态资源处理（如 /static/**）
• 消息转换器（如 JSON 支持）

自定义配置（可选）

若需覆盖默认行为，可通过以下方式：

1. 配置类继承 WebMvcConfigurer

@Configuration
public class WebConfig implements WebMvcConfigurer {

// 注册拦截器
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new AuthInterceptor());
}

// 自定义视图解析
@Override
public void configureViewResolvers(ViewResolverRegistry registry) {
registry.jsp("/WEB-INF/views/", ".jsp");
}
}

2. 配置文件修改参数

在 application.yml 中调整默认值：

spring:
mvc:
static-path-pattern: /resources/** # 修改静态资源路径
view:
prefix: /templates/
suffix: .html

控制器示例

Spring MVC 的 @Controller 可直接使用：

@RestController
@RequestMapping("/api")
public class UserController {

@GetMapping("/users")
public List<User> getUsers() {
return userService.findAll();
}
}

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常见扩展场景

总结

Spring Boot 通过 约定优于配置 简化了 Spring MVC 的整合：

• 默认配置开箱即用
• 通过接口/注解灵活定制
• 无需手动配置 web.xml 或 DispatcherServlet

提示：需避免同时使用 @EnableWebMvc 注解，否则会禁用自动配置。