全网最全的微服务+Outh2套餐，Gateway整合Oauth2！（入门到精通，附源码）满足你的味蕾需要（三）

上篇文章主要讲解Oauth2模块、user-service模块、feign模块，那么作为重中之重的gateway，我们将其做成资源服务器来进行开发。

一、资源服务器的实现方式

资源服务器在实际开发有两种实现方式：

（1）gateway做网关转发，不做资源服务器，由各个微服务模块自己去做资源服务器；

（2）gateway做网关转发 并且 做资源服务器。

前者方案使得每一个微服务模块都需要导入oauth2相关依赖，并且做处理，过于繁琐且耦合高。

所以本文章在接下来介绍，也就是文章的重点，并且会介绍到如何解决通过gateway去认证授权，跳转到oauth2认证授权后，跳转不回或重定向不到gatway的bug。

二、gateway模块

 1、模块结构

2、pom

    <dependencies>
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-oauth2-jose</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-oauth2-resource-server</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>
        <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-discovery</artifactId>
        </dependency>

        <!--加载bootstrap 文件-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bootstrap</artifactId>
        </dependency>
        <!--客户端负载均衡loadbalancer-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-loadbalancer</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>com.white</groupId>
            <artifactId>common</artifactId>
            <version>1.0</version>
            <scope>compile</scope>
        </dependency>

    </dependencies>

3、bootstrap

server:
  port: 10000

spring:
  application:
    name: gateway
  profiles:
    active: dev
  cloud:
    gateway:
      routes:
        - id: user
          uri: lb://user-service  # 客户端负载均衡 loadbalancer
          predicates:
            - Path=/user/**,/admin/**
        - id: order
          uri: lb://order-service
          predicates:
            - Path=/order/**
        - id: oauth
          uri: lb://oauth-service
          predicates:
            - Path=/uaa/**
    nacos:
      discovery:
        server-addr: localhost:8848
  redis:
    host: 127.0.0.1
    port: 6379
  security:
    oauth2:
      resourceserver:
        jwt:
          #配置RSA的公钥访问地址  端口对应上篇文章的oauth2模块服务的端口
          jwk-set-uri: 'http://localhost:8101/uaa/rsa/publicKey'
  main:
    web-application-type: reactive

4.GatewayApp启动类

@SpringBootApplication(exclude= {DataSourceAutoConfiguration.class})
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class GatewayApp
{
    public static void main( String[] args )
    {

        SpringApplication.run(GatewayApp.class,args);
    }
}

5.IgnoreUrlsConfig

package com.white.gateway.config;

import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

@Component
public class IgnoreUrlsConfig {
    public List<String> getUrls() {
        ArrayList<String> objects = new ArrayList<>();
        objects.add("/uaa/**");
        objects.add("/user/**");
        return objects;
    }
}

6.IgnoreUrlsRemoveJwtFilter

package com.white.gateway.filter;

import com.white.gateway.config.IgnoreUrlsConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import org.springframework.util.PathMatcher;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springf