Spring MVC 基本配置步骤 总结

1.简介

本文记录Spring MVC基本项目拉起配置步骤。

2.步骤

在pom.xml中导入依赖：

    <dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>6.0.6</version><scope>compile</scope></dependency><dependency><groupId>jakarta.platform</groupId><artifactId>jakarta.jakartaee-web-api</artifactId><version>9.1.0</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>6.0.6</version></dependency><dependency><groupId>org.eclipse</groupId><artifactId>yasson</artifactId><version>3.0.0</version></dependency>

添加配置类：

@Configuration
@ComponentScan("com.jojo.controller")
public class MvcConfig {@Beanpublic RequestMappingHandlerMapping handlerMapping() {return new RequestMappingHandlerMapping();//加入ioc}@Beanpublic RequestMappingHandlerAdapter handlerAdapter() {return new RequestMappingHandlerAdapter();//加入ioc}}

添加初始化类：

public class SpringMvcInit extends AbstractAnnotationConfigDispatcherServletInitializer {@Overrideprotected Class<?>[] getRootConfigClasses() {return new Class[0];}//设置项目的配置类@Overrideprotected Class<?>[] getServletConfigClasses() {return new Class[]{MvcConfig.class};}//配置springmvc内部自动serverlet的访问地址@Overrideprotected String[] getServletMappings() {return new String[]{"/"};}
}

添加业务类:

@Controller
//@RequestMapping("/user")表示类下所有方法路径都加/user前缀
public class TestController {@RequestMapping("test")//对外访问地址为/test，//其中如有*代表一层通配符，**代表多层通配符//@RequestMapping(value = "test", method = {RequestMethod.GET,RequestMethod.POST}),另一种写法，并指定请求类型//@PostMapping=@RequestMapping+RequestMethod.POST//@GetMapping=@RequestMapping+RequestMethod.GET//@PutMapping=@RequestMapping+RequestMethod.PUT//@DeleteMapping=@RequestMapping+RequestMethod.DELETE@ResponseBody //直接返回字符串给前端。public String Test(){System.out.println("good");return "good!";}
}

Tomcat配置：

在浏览器中访问：