以2.2.1.BUILD-SNAPSHOT 为基准，适配Greenwich版本的Spring Cloud

spring-cloud-alibaba-examples/seata-example/business-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.cloud</groupId>
             <artifactId>spring-cloud-starter-openfeign</artifactId>

spring-cloud-alibaba-examples/seata-example/business-service/src/main/java/com/alibaba/cloud/examples/BusinessApplication.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2019 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -18,11 +18,13 @@ package com.alibaba.cloud.examples;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.cloud.openfeign.EnableFeignClients;
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.context.annotation.Bean;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.client.RestTemplate;
 
@@ -31,6 +33,7 @@ import org.springframework.web.client.RestTemplate;
  */
 @SpringBootApplication
 @EnableFeignClients
+@EnableDiscoveryClient(autoRegister = false)
 public class BusinessApplication {
 
 	public static void main(String[] args) {
@@ -42,16 +45,16 @@ public class BusinessApplication {
 		return new RestTemplate();
 	}
 
-	@FeignClient(value = "storage", url = "http://127.0.0.1:18082")
+	@FeignClient("storage-service")
 	public interface StorageService {
 
-		@RequestMapping(path = "/storage/{commodityCode}/{count}")
-		String storage(@RequestParam("commodityCode") String commodityCode,
-				@RequestParam("count") int count);
+		@GetMapping(path = "/storage/{commodityCode}/{count}")
+		String storage(@PathVariable("commodityCode") String commodityCode,
+				@PathVariable("count") int count);
 
 	}
 
-	@FeignClient(value = "order", url = "http://127.0.0.1:18083")
+	@FeignClient("order-service")
 	public interface OrderService {
 
 		@PostMapping(path = "/order")
@@ -60,4 +63,5 @@ public class BusinessApplication {
 				@RequestParam("orderCount") int orderCount);
 
 	}
+
 }

spring-cloud-alibaba-examples/seata-example/business-service/src/main/java/com/alibaba/cloud/examples/HomeController.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2019 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -18,7 +18,6 @@ package com.alibaba.cloud.examples;
 
 import com.alibaba.cloud.examples.BusinessApplication.OrderService;
 import com.alibaba.cloud.examples.BusinessApplication.StorageService;
-
 import io.seata.spring.annotation.GlobalTransactional;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -42,13 +41,19 @@ public class HomeController {
 	private static final Logger LOGGER = LoggerFactory.getLogger(HomeController.class);
 
 	private static final String SUCCESS = "SUCCESS";
+
 	private static final String FAIL = "FAIL";
+
 	private static final String USER_ID = "U100001";
+
 	private static final String COMMODITY_CODE = "C00321";
+
 	private static final int ORDER_COUNT = 2;
 
 	private final RestTemplate restTemplate;
+
 	private final OrderService orderService;
+
 	private final StorageService storageService;
 
 	public HomeController(RestTemplate restTemplate, OrderService orderService,
@@ -82,11 +87,14 @@ public class HomeController {
 		HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<MultiValueMap<String, String>>(
 				map, headers);
 
-		ResponseEntity<String> response = restTemplate.postForEntity(url, request,
-				String.class);
-
+		ResponseEntity<String> response;
+		try {
+			response = restTemplate.postForEntity(url, request, String.class);
+		}
+		catch (Exception exx) {
+			throw new RuntimeException("mock error");
+		}
 		result = response.getBody();
-
 		if (!SUCCESS.equals(result)) {
 			throw new RuntimeException();
 		}

spring-cloud-alibaba-examples/seata-example/business-service/src/main/java/com/alibaba/cloud/examples/Order.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2019 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -19,10 +19,30 @@ package com.alibaba.cloud.examples;
 import java.io.Serializable;
 
 public class Order implements Serializable {
+
+	/**
+	 * order id.
+	 */
 	public long id;
+
+	/**
+	 * user id.
+	 */
 	public String userId;
+
+	/**
+	 * commodity code.
+	 */
 	public String commodityCode;
+
+	/**
+	 * count.
+	 */
 	public int count;
+
+	/**
+	 * money.
+	 */
 	public int money;
 
 	@Override
@@ -30,4 +50,5 @@ public class Order implements Serializable {
 		return "Order{" + "id=" + id + ", userId='" + userId + '\'' + ", commodityCode='"
 				+ commodityCode + '\'' + ", count=" + count + ", money=" + money + '}';
 	}
+
 }

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

@@ -1,8 +1,27 @@
 server.port=18081
 spring.application.name=business-service
+spring.cloud.nacos.discovery.server-addr=localhost:8848
 # The following configuration can be omitted.
 
 #feign.hystrix.enabled=true
 #feign.sentinel.enabled=true
 
-logging.level.io.seata=debug
+logging.level.io.seata=debug
+
+seata.enabled=true
+spring.cloud.alibaba.seata.tx-service-group=business-service
+seata.service.vgroup-mapping.business-service=default
+seata.service.grouplist.default=127.0.0.1:8091
+seata.service.disable-global-transaction=false
+
+spring.cloud.loadbalancer.ribbon.enabled=true
+
+## if use registry center
+#seata.registry.type=nacos
+#seata.registry.nacos.cluster=default
+#seata.registry.nacos.server-addr=localhost
+#
+## if use config center
+#seata.config.type=apollo
+#seata.config.apollo.apollo-meta=http://192.168.1.204:8801
+#seata.config.apollo.app-id=seata-server