webflux的使用

pom文件，一山不容二虎，下面兩個依賴不能同時使用，因爲這次我們要用到webflux，所以註釋掉上面的web，否則，編譯沒錯誤，但網頁顯示不出來。

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

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

HelloHandle類

package com.example.demo;

import org.springframework.http.MediaType;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
import reactor.core.publisher.Mono;

@Component
public class HelloHandle {
    public Mono<ServerResponse> hello(ServerRequest request) {
        //返回一個字符串 hello this is a spring boot webflux project!
        return ServerResponse.ok().contentType(MediaType.APPLICATION_JSON)
                .body(BodyInserters.fromObject("hello this is a spring boot webflux project!"));
    }
}

HelloRouter類

package com.example.demo;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.web.reactive.function.server.*;

//@Configuration啓動容器+@Bean註冊Bean
@Configuration
public class HelloRouter {
    @Bean
    public RouterFunction<ServerResponse> routeHello(HelloHandle helloHandle) {
        //接收HelloHandle傳來的字符串（顯示在網頁），更改路由
        return RouterFunctions
                .route(RequestPredicates.GET("/hello")
                .and(RequestPredicates.accept(MediaType.APPLICATION_JSON)),helloHandle::hello);
    }
}

總結：要把上面的web註釋掉，不然會顯示不出來

轉至：https://blog.csdn.net/qq_43141611/article/details/102629456