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fangjian0423
2019-10-30 17:46:19 +08:00
parent 6cfb700ed5
commit cdca82393a
279 changed files with 3574 additions and 1663 deletions
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6
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-example/src/main/java/com/alibaba/cloud/examples/ConsumerApplication.java
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@@ -1,5 +1,8 @@
package com.alibaba.cloud.examples;
import com.alibaba.cloud.examples.ConsumerApplication.EchoService;
import com.alibaba.cloud.sentinel.annotation.SentinelRestTemplate;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@@ -13,9 +16,6 @@ import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.client.RestTemplate;
import com.alibaba.cloud.examples.ConsumerApplication.EchoService;
import com.alibaba.cloud.sentinel.annotation.SentinelRestTemplate;
/**
* @author xiaojing
*/

4
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-example/src/main/java/com/alibaba/cloud/examples/TestController.java
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@@ -1,5 +1,7 @@
package com.alibaba.cloud.examples;
import com.alibaba.cloud.examples.ConsumerApplication.EchoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.PathVariable;
@@ -9,8 +11,6 @@ import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import com.alibaba.cloud.examples.ConsumerApplication.EchoService;
/**
* @author xiaojing
*/

3
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/java/com/alibaba/cloud/examples/ProviderApplication.java
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@@ -14,8 +14,8 @@ import org.springframework.web.bind.annotation.RestController;
/**
* @author xiaojing
*/
@SpringBootApplication
@EnableDiscoveryClient
@SpringBootApplication
public class ProviderApplication {
public static void main(String[] args) {
@@ -24,6 +24,7 @@ public class ProviderApplication {
@RestController
class EchoController {
@RequestMapping(value = "/", method = RequestMethod.GET)
public ResponseEntity index() {
return new ResponseEntity("index error", HttpStatus.INTERNAL_SERVER_ERROR);

6
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-spring-cloud-config-client/src/main/java/com/alibaba/cloud/examples/SpringCloudConfigClientApplication.java
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@@ -27,8 +27,8 @@ import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@EnableDiscoveryClient
public class SpringCloudConfigClientApplication {
public static void main(String[] args) {
SpringApplication.run(SpringCloudConfigClientApplication.class, args);
}
public static void main(String[] args) {
SpringApplication.run(SpringCloudConfigClientApplication.class, args);
}
}

2
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-spring-cloud-config-client/src/main/resources/application.yml
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@@ -1 +1 @@
config: config-from-yml
config: config-from-yml

16
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/readme-zh.md
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@@ -15,7 +15,7 @@
1. 首先，修改 pom.xml 文件，引入 Nacos Discovery Starter。
<dependency>
<groupId>org.springframework.cloud</groupId>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
@@ -35,7 +35,7 @@
@RestController
class EchoController {
@RequestMapping(value = "/echo/{string}", method = RequestMethod.GET)
@GetMapping(value = "/echo/{string}")
public String echo(@PathVariable String string) {
return string;
}
@@ -70,7 +70,7 @@
### 验证
#### 查询服务
在浏览器输入此地址 `http://127.0.0.1:8848/nacos/v1/ns/instances?serviceName=service-provider`，并点击跳转，可以看到服务节点已经成功注册到 Nacos Server。
在浏览器输入此地址 `http://127.0.0.1:8848/nacos/v1/ns/catalog/instances?serviceName=service-provider&clusterName=DEFAULT&pageSize=10&pageNo=1&namespaceId=`，并点击跳转，可以看到服务节点已经成功注册到 Nacos Server。
![查询服务](https://cdn.nlark.com/lark/0/2018/png/54319/1536986288092-5cf96af9-9a26-466b-85f6-39ad1d92dfdc.png)
@@ -102,7 +102,7 @@ Nacos Discovery Starter 默认集成了 Ribbon ，所以对于使用了 Ribbon
@FeignClient(name = "service-provider")
public interface EchoService {
@RequestMapping(value = "/echo/{str}", method = RequestMethod.GET)
@GetMapping(value = "/echo/{str}")
String echo(@PathVariable("str") String str);
}
@@ -120,11 +120,11 @@ Nacos Discovery Starter 默认集成了 Ribbon ，所以对于使用了 Ribbon
@Autowired
private EchoService echoService;
@RequestMapping(value = "/echo-rest/{str}", method = RequestMethod.GET)
@GetMapping(value = "/echo-rest/{str}")
public String rest(@PathVariable String str) {
return restTemplate.getForObject("http://service-provider/echo/" + str, String.class);
}
@RequestMapping(value = "/echo-feign/{str}", method = RequestMethod.GET)
@GetMapping(value = "/echo-feign/{str}")
public String feign(@PathVariable String str) {
return echoService.echo(str);
}
@@ -141,11 +141,11 @@ Nacos Discovery Starter 默认集成了 Ribbon ，所以对于使用了 Ribbon
2. 打包编译后启动：在 nacos-discovery-consumer-example 项目中执行 `mvn clean package` 将工程编译打包，然后执行 `java -jar nacos-discovery-consumer-example.jar`启动应用。
#### 验证
1. 在流量器地址栏中输入 http://127.0.0.1:18083/echo-rest/1234，点击跳转，可以看到浏览器显示了 nacos-discovery-provider-example 返回的消息 "hello Nacos Discovery 1234"，证明服务发现生效。
1. 在浏览器地址栏中输入 http://127.0.0.1:18083/echo-rest/1234，点击跳转，可以看到浏览器显示了 nacos-discovery-provider-example 返回的消息 "hello Nacos Discovery 1234"，证明服务发现生效。
![rest](https://cdn.nlark.com/lark/0/2018/png/54319/1536986302124-ee27670d-bdcc-4210-9f5d-875acec6d3ea.png)
1. 在流量器地址栏中输入 http://127.0.0.1:18083/echo-feign/12345，点击跳转，可以看到浏览器显示 nacos-discovery-provider-example 返回的消息 "hello Nacos Discovery 12345"，证明服务发现生效。
1. 在浏览器地址栏中输入 http://127.0.0.1:18083/echo-feign/12345，点击跳转，可以看到浏览器显示 nacos-discovery-provider-example 返回的消息 "hello Nacos Discovery 12345"，证明服务发现生效。
![feign](https://cdn.nlark.com/lark/0/2018/png/54319/1536986311685-6d0c1f9b-a453-4ec3-88ab-f7922d210f65.png)
## 原理

4
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/readme.md
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@@ -14,7 +14,7 @@ Before we start the demo, let's learn how to connect Nacos Config to a Spring Cl
1. Add dependency spring-cloud-starter-alibaba-nacos-discovery in the pom.xml file in your Spring Cloud project.
<dependency>
<groupId>org.springframework.cloud</groupId>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
@@ -34,7 +34,7 @@ Before we start the demo, let's learn how to connect Nacos Config to a Spring Cl
@RestController
class EchoController {
@RequestMapping(value = "/echo/{string}", method = RequestMethod.GET)
@GetMapping(value = "/echo/{string}")
public String echo(@PathVariable String string) {
return string;
}