"Springboot" Integrated Web Flux

Objective:

Must learn to springboot basic knowledge

Brief introduction:

Takes an opinionated view of building Production-ready Spring applications. Spring Boot Favors convention over-configuration and is designed-to get-up and running as quickly as possible.

Tools:

JDK8

apache-maven-3.5.2

IntelliJ Idea 2018.1.3 x64

(1) Create a new Springboot project (2) Pom.xml

<dependencies> <dependency> <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-webflux</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactid>spring-boot-starter-test&lt            ;/artifactid> <scope>test</scope> </dependency> <dependency>            <groupId>io.projectreactor</groupId> <artifactId>reactor-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupid>org.projec tlombok</groupid> <artifactId>lombok</artifactId> </dependency> </dependen Cies>

(3) Establishment of entity User (simplified not written) (4) Establishment of repository

Package Com.lwc.repository;import Com.lwc.pojo.user;import Org.springframework.stereotype.repository;import Java.util.collection;import Java.util.concurrent.concurrenthashmap;import Java.util.concurrent.ConcurrentMap; Import java.util.concurrent.atomic.atomicinteger;/** * @author Eddie.lee * @Package com.lwc.repository * @ClassName Userrepository * @description This was DAO * @date created in 2018-06-07 21:36 * @modified by */@Repositorypublic class use rrespository {/** * use memory to store = = = * Map */private Concurrentmap<integer, user> repository = new Concur    Renthashmap<> ();    /** * ID Generation */private final static Atomicinteger Idgenerator = new Atomicinteger ();         /** * Protect User Object * * @param user * @return If the Save succeeds, returns True, otherwise, returns false */public boolean save (user user) {        ID starting from 1 Integer id = idgenerator.incrementandget ();        Set the primary key User.setid (ID);    return Repository.put (ID, user) = = NULL; }/** * returnBack to all Users list * * @return */public collection<user> FindAll () {return repository.values (); }}

(5) Establishing the control layer

Package Com.lwc.controller;import Com.lwc.pojo.user;import Com.lwc.repository.userrespository;import Org.springframework.beans.factory.annotation.autowired;import Org.springframework.web.bind.annotation.postmapping;import Org.springframework.web.bind.annotation.RequestParam Import org.springframework.web.bind.annotation.restcontroller;/** * @author Eddie.lee * @Package Com.lwc.controller * @ClassName Usercontroller * @description * @date created in 2018-06-07 21:44 * @modified by * * @RestControllerpublic class    Usercontroller {private final userrespository userrespository;    @Autowired public Usercontroller (Userrespository userrespository) {this.userrespository = userrespository;        } @PostMapping ("/person/save") public User Save (@RequestParam ("name") String name) {User user = new User ();        User.setname (name); if (userrespository.save) {System.out.printf ("User object:%s saved successfully!            ", user);        System.out.println ("");     }   return user; }}

(6) Postman test, insert interface.

Http://localhost:8080/person/save?name=zhangsan2

{
"id": 1,
"Name": "Zhangsan2"
}

(7) using Web Flux, Spring 5.0, the advantage is NiO

Package Com.lwc.config;import Com.lwc.pojo.user;import Com.lwc.repository.userrespository;import Org.springframework.beans.factory.annotation.autowired;import Org.springframework.context.annotation.Bean; Import Org.springframework.context.annotation.configuration;import Org.springframework.web.reactive.function.server.requestpredicates;import Org.springframework.web.reactive.function.server.routerfunction;import Org.springframework.web.reactive.function.server.routerfunctions;import Org.springframework.web.reactive.function.server.serverresponse;import Reactor.core.publisher.flux;import Reactor.core.publisher.mono;import java.util.collection;/** * @author Eddie.lee * @Package com.lwc.config * @ClassName Routerfunctionconfiguration * @description Router function configuration * @date created in 2018-06-07 22:33 * @modified by */@Configurationpubl    IC class Routerfunctionconfiguration {//@Autowired//private userrespository userrepository; @Bean @Autowired Public routerfunction<serverresponse&Gt Personfindall (Userrespository userrepository) {return Routerfunctions.route (Requestpredicates.get ("/person/find/a                    ll "), request, {collection<user> users = Userrepository.findall ();                    flux<user> Userflux = flux.fromiterable (users);                    Mono<serverresponse> BODY = Serverresponse.ok (). Body (Userflux, user.class);                return body;    }); }}

"Springboot" Integrated Web Flux