（没成功，放弃尝试）去除注册中心 nacos；添加 Eureka；升级Spring Cloud版本为2022.0.1；JDK版本为17

backend/microservice-provider-access-8002/pom.xml

@@ -13,8 +13,8 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>11</maven.compiler.source>
-        <maven.compiler.target>11</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
     </properties>
 
     <dependencies>
@@ -67,21 +67,11 @@
         </dependency>
 
         <!-- Spring Boot -->
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-test</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
 
-        <!-- Nacos -->
-        <dependency>
-            <groupId>com.alibaba.cloud</groupId>
-            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
-        </dependency>
-
         <!-- OpenFeign -->
         <dependency>
             <groupId>org.springframework.cloud</groupId>

backend/microservice-provider-access-8002/src/main/resources/application.yml

@@ -12,9 +12,6 @@ spring:
   application:
     name: microservice-provider-access
   cloud:
-    nacos:
-      discovery:
-        server-addr: 127.0.0.1:8848
   datasource:
     type: com.alibaba.druid.pool.DruidDataSource
     driver-class-name: com.mysql.cj.jdbc.Driver