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企业网站建设的公司价格,网站做游客留言做,龙门惠州网站建设,怎样自己免费建设一个网站相关类介绍动态路由（自己控制，非注册中心控制）涉及两个很重要的Bean： RouteDefinitionWriter：用于添加、修改、删除路由规则。RouteDefinitionLocator：用于查询路由规则。以及一个相关事件&#xff1a…

依赖及配置

先引入相关依赖：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.chilun</groupId><artifactId>API_OPEN_SPACE_GATEWAY</artifactId><version>1.0-SNAPSHOT</version><properties><java.version>17</java.version><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target></properties><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>2.7.9</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>2021.0.5</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>2021.0.5.0</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId><version>2021.0.5.0</version></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-bootstrap</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>com.github.xiaoymin</groupId><artifactId>knife4j-spring-boot-starter</artifactId><version>3.0.3</version></dependency></dependencies>
</project>

以及配置文件application.yml：

server:port: 8002
logging:level:org.springframework.cloud.gateway: DEBUG
myGateway:RoutePrefix: api
spring:profiles:active: devmvc:pathmatch:matching-strategy: ant_path_matchercloud:gateway:enabled: true

服务中心相关配置：

spring.cloud.nacos.config.server-addr=127.0.0.1:8848
spring.application.name=gateway

核心代码

定义服务层接口：

import com.chilun.apiopenspace.gateway.entity.dto.DeleteRouteRequest;
import com.chilun.apiopenspace.gateway.entity.dto.InitRouteRequest;
import com.chilun.apiopenspace.gateway.entity.dto.SaveOrUpdateRouteRequest;
import com.chilun.apiopenspace.gateway.entity.pojo.RoutePOJO;
import reactor.core.publisher.Mono;import java.util.List;/*** @author 齿轮* @date 2024-02-08-22:39*/
public interface RouteService {void init(InitRouteRequest request);void saveOrUpdate(SaveOrUpdateRouteRequest request);void delete(DeleteRouteRequest request);void refresh();Mono<List<RoutePOJO>> getAll();
}

实现类（适配器模式）：

package com.chilun.apiopenspace.gateway.service.impl;import com.chilun.apiopenspace.gateway.entity.dto.DeleteRouteRequest;
import com.chilun.apiopenspace.gateway.entity.dto.InitRouteRequest;
import com.chilun.apiopenspace.gateway.entity.dto.SaveOrUpdateRouteRequest;
import com.chilun.apiopenspace.gateway.entity.pojo.RoutePOJO;
import com.chilun.apiopenspace.gateway.service.RouteService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.gateway.event.RefreshRoutesEvent;
import org.springframework.cloud.gateway.filter.FilterDefinition;
import org.springframework.cloud.gateway.handler.predicate.PredicateDefinition;
import org.springframework.cloud.gateway.route.RouteDefinition;
import org.springframework.cloud.gateway.route.RouteDefinitionLocator;
import org.springframework.cloud.gateway.route.RouteDefinitionWriter;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.stereotype.Service;
import reactor.core.publisher.Mono;import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;/*** @author 齿轮* @date 2024-02-08-22:43*/
@Service
public class RouteServiceAdepter implements RouteService, ApplicationEventPublisherAware {@Resourceprivate RouteDefinitionWriter routeDefinitionWriter;@Resourceprivate RouteDefinitionLocator locator;@Value("${myGateway.RoutePrefix}")private String routePrefix;//    @PostConstruct
//    public void test(){
//        SaveOrUpdateRouteRequest saveOrUpdateRouteRequest = new SaveOrUpdateRouteRequest();
//        saveOrUpdateRouteRequest.setUri("https://www.baidu.com");
//        saveOrUpdateRouteRequest.setId("1");
//        saveOrUpdate(saveOrUpdateRouteRequest);
//    }@Overridepublic void init(InitRouteRequest request) {request.getList().forEach(this::saveOrUpdate);this.publisher.publishEvent(new RefreshRoutesEvent(this));}@Overridepublic void saveOrUpdate(SaveOrUpdateRouteRequest request) {RouteDefinition routeDefinition = new RouteDefinition();routeDefinition.setId(request.getId());routeDefinition.setUri(URI.create(request.getUri()));String Path = "/" + routePrefix + "/" + request.getId();routeDefinition.setPredicates(Collections.singletonList(new PredicateDefinition("Path=" + Path)));routeDefinition.setFilters(Collections.singletonList(new FilterDefinition("SetPath=/")));routeDefinitionWriter.save(Mono.just(routeDefinition)).subscribe();}@Overridepublic void delete(DeleteRouteRequest request) {routeDefinitionWriter.delete(Mono.just(request.getId())).subscribe();this.publisher.publishEvent(new RefreshRoutesEvent(this));}@Overridepublic void refresh() {this.publisher.publishEvent(new RefreshRoutesEvent(this));}@Overridepublic Mono<List<RoutePOJO>> getAll() {return locator.getRouteDefinitions().map(routeDefinition -> {RoutePOJO routePOJO = new RoutePOJO();routePOJO.setId(routeDefinition.getId());routePOJO.setURI(routeDefinition.getUri().toString());routePOJO.setPredicates(routeDefinition.getPredicates().stream().map(predicate -> predicate.getArgs().values().toString()).collect(Collectors.toList()));routePOJO.setFilters(routeDefinition.getFilters().stream().map(FilterDefinition::getName).collect(Collectors.toList()));return routePOJO;}).collectList();}private ApplicationEventPublisher publisher;@Overridepublic void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {this.publisher = applicationEventPublisher;}
}

Controller层代码：

package com.chilun.apiopenspace.gateway.controller;import com.chilun.apiopenspace.gateway.entity.dto.DeleteRouteRequest;
import com.chilun.apiopenspace.gateway.entity.dto.InitRouteRequest;
import com.chilun.apiopenspace.gateway.entity.dto.SaveOrUpdateRouteRequest;
import com.chilun.apiopenspace.gateway.entity.pojo.RoutePOJO;
import com.chilun.apiopenspace.gateway.service.RouteService;
import org.springframework.web.bind.annotation.*;
import reactor.core.publisher.Mono;import javax.annotation.Resource;
import java.util.List;/*** @author 齿轮* @date 2024-02-13-22:13*/
@RestController
@RequestMapping("/manage")
public class RouteController {@ResourceRouteService service;@PostMapping("/update")public void add(@RequestBody SaveOrUpdateRouteRequest request) {service.saveOrUpdate(request);}@PostMapping("/init")public void init(@RequestBody InitRouteRequest request) {service.init(request);}@PostMapping("/delete")public void delete(@RequestBody DeleteRouteRequest request) {service.delete(request);}@GetMapping("/getAll")public Mono<List<RoutePOJO>> getAll() {return service.getAll();}@GetMapping("/refresh")public void refresh(){service.refresh();}
}

代码请自行查看，看不懂就问大语言模型。

代码逻辑较简单，仅基本增删改查功能，其他延伸方面如安全等请自行探索。

其他代码

实体类：

package com.chilun.apiopenspace.gateway.entity.dto;import lombok.Data;/*** @author 齿轮* @date 2024-02-13-20:01*/
@Data
public class DeleteRouteRequest {String id;
}package com.chilun.apiopenspace.gateway.entity.dto;import lombok.Data;import java.util.List;/*** @author 齿轮* @date 2024-02-13-20:00*/
@Data
public class InitRouteRequest {List<SaveOrUpdateRouteRequest> list;
}package com.chilun.apiopenspace.gateway.entity.dto;import lombok.Data;/*** @author 齿轮* @date 2024-02-13-19:55*/
@Data
public class SaveOrUpdateRouteRequest {String id;String uri;
}package com.chilun.apiopenspace.gateway.entity.pojo;import lombok.Data;import java.util.List;/**** Route实体类，用于远程调用接受参数* @author 齿轮* @date 2024-02-13-19:53*/
@Data
public class RoutePOJO {String id;String URI;List<String> Predicates;List<String> Filters;
}

swagger文档配置类：

package com.chilun.apiopenspace.gateway.config;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;/*** @author 齿轮* @date 2024-02-14-1:32*/
@Configuration
@EnableSwagger2
@Profile({"dev"})
public class Knife4jConfig {@Beanpublic Docket defaultApi2() {return new Docket(DocumentationType.SWAGGER_2).apiInfo(new ApiInfoBuilder().title("API开放平台接口文件").description("API开放平台").contact(new Contact("chilun", "http://home.shoumingchilun.cn", "2265501251@qq.com")).version("1.0").build()).select()// 指定 Controller 扫描包路径.apis(RequestHandlerSelectors.basePackage("com.chilun.apiopenspace.gateway.controller")).paths(PathSelectors.any()).build();}
}

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