update examples

spring-cloud-alibaba-examples/seata-example/account-service/pom.xml

@@ -16,6 +16,10 @@
             <groupId>com.alibaba.cloud</groupId>
             <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>

spring-cloud-alibaba-examples/seata-example/account-service/src/main/resources/application.properties

@@ -1,5 +1,6 @@
 spring.application.name=account-service
 server.port=18084
+spring.cloud.nacos.discovery.server-addr=localhost:8848
 
 spring.datasource.name="accountDataSource"
 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource