SpringMVC入门案例

    4.0.0

    com.wym
    springmvc_01_quickStart
    1.0-SNAPSHOT
    war

    
        UTF-8
        1.8
        1.8
    


    
        
            javax.servlet
            javax.servlet-api
            3.1.0
            provided
        
        
            org.springframework
            spring-webmvc
            5.2.10.RELEASE
        
    


    
        
            
                org.apache.tomcat.maven
                tomcat7-maven-plugin
                2.1
                
                    8080
                    /
                
            
        
    

@Controller
public class UserController {
    //2.2、设置当前操作的访问路径
    @RequestMapping("/save")
    //2.3、设置当前操作的返回值
    @ResponseBody
    public String save(){
        System.out.println("user save~");
        return "{'name':'Helena'}";
    }
}

//创建springmvc的配置文件，加载controller对应的bean
@Configuration
@ComponentScan("com.wym.controller")
public class SpringMvcConfig {

}

//定义一个servlet容器启动的配置类，在里面加载spring的配置
public class ServletContainerInitConfig extends AbstractDispatcherServletInitializer {
    //加载SpringMVC容器配置
    @Override
    protected WebApplicationContext createServletApplicationContext() {
        AnnotationConfigWebApplicationContext act = new AnnotationConfigWebApplicationContext();
        act.register(SpringMvcConfig.class);
        return act;
    }

    //设置那些请求归属SpringMVC处理
    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }

    //加载spring容器配置
    @Override
    protected WebApplicationContext createRootApplicationContext() {
        return null;
    }
}