SpringBoot 官方文档示例：(49)使用路由函数取代RequestMapping来做路由映射

一、定义业务逻辑处理方法：

package com.example.handler;

import com.example.domain.Teacher;
import org.springframework.stereotype.Service;
import org.springframework.web.servlet.function.ServerRequest;
import org.springframework.web.servlet.function.ServerResponse;

@Service
public class MyUserHandler {
    public ServerResponse getUser(ServerRequest request){
        String name=request.pathVariable("name");
        String age=request.pathVariable("age");
        Teacher teacher=new Teacher(name,Integer.parseInt(age));
        return ServerResponse.ok().body(teacher);
    }
}

二、定义路由函数，配置Http请求地址和业务逻辑方法之间的映射

package com.example.config;

import com.example.handler.MyUserHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.web.servlet.function.RequestPredicate;
import org.springframework.web.servlet.function.RouterFunction;
import org.springframework.web.servlet.function.ServerResponse;
import static org.springframework.web.servlet.function.RequestPredicates.accept;
import static org.springframework.web.servlet.function.RouterFunctions.route;
@Configuration(proxyBeanMethods = false)
public class MyRoutingConfiguration {
    private static final RequestPredicate ACCEPT_JSON =
            accept(MediaType.APPLICATION_JSON);
    @Bean
    public RouterFunction routerFunction(MyUserHandler userHandler) {
        return route()
                .GET("/myRoute/{name}/{age}", ACCEPT_JSON, userHandler::getUser)
                //.GET("/{user}/customers", ACCEPT_JSON, userHandler::getUserCustomers)
                //.DELETE("/{user}", ACCEPT_JSON, userHandler::deleteUser)
                .build();
    }
}

三、启动Spring Boot程序进行测试，结果如下：