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fangjian0423
2019-10-30 13:10:10 +08:00
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436 changed files with 7099 additions and 3202 deletions
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4
spring-cloud-alibaba-examples/nacos-example/nacos-config-example/readme-zh.md
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@@ -43,12 +43,10 @@
1. 直接下载：[Nacos Server 下载页](https://github.com/alibaba/nacos/releases)
2. 源码构建：进入 Nacos [Github 项目页面](https://github.com/alibaba/nacos)，将代码 git clone 到本地自行编译打包，[参考此文档](https://nacos.io/zh-cn/docs/quick-start.html)。
2. 启动 Server，进入下载到本地并解压完成后的文件夹(使用源码构建的方式则进入编译打包好的文件夹)，再进去其相对文件夹 nacos/bin，并对照操作系统实际情况执行如下命令。[详情参考此文档](https://nacos.io/zh-cn/docs/quick-start.html)。
1. Linux/Unix/Mac 操作系统，执行命令 `sh startup.sh -m standalone`
1. Windows 操作系统，执行命令 `cmd startup.cmd`
2. Windows 操作系统，执行命令 `cmd startup.cmd`
3. 在命令行执行如下命令，向 Nacos Server 中添加一条配置。

4
spring-cloud-alibaba-examples/nacos-example/nacos-config-example/readme.md
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@@ -42,12 +42,10 @@ Before we start the demo, let's learn how to connect Nacos Config to a Spring Cl
1. Download: Download Nacos Server [download page](https://github.com/alibaba/nacos/releases)
2. Build from source code: Get source code by git clone git@github.com:alibaba/Nacos.git from Github Nacos and build your code. See [build reference](https://nacos.io/en-us/docs/quick-start.html) for details.
2. Unzip the downloaded file and go to the nacos/bin folder(), And according to the actual situation of the operating system, execute the following command。[see reference for more detail](https://nacos.io/en-us/docs/quick-start.html)。
1. Linux/Unix/Mac , execute `sh startup.sh -m standalone`
1. Windows , execute `cmd startup.cmd`
2. Windows , execute `cmd startup.cmd`
3. Execute the following command to add a configuration to Nacos Server.

54
spring-cloud-alibaba-examples/nacos-example/nacos-config-example/src/main/java/com/alibaba/cloud/examples/Application.java
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@@ -1,5 +1,14 @@
package com.alibaba.cloud.examples;
import java.io.IOException;
import java.io.StringReader;
import java.util.Properties;
import java.util.concurrent.Executor;
import com.alibaba.cloud.nacos.NacosConfigManager;
import com.alibaba.nacos.api.config.listener.Listener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
@@ -11,11 +20,10 @@ import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @author xiaojing
* @author xiaojing, Jianwei Mao
*/
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@@ -27,13 +35,47 @@ class SampleRunner implements ApplicationRunner {
@Value("${user.name}")
String userName;
@Value("${user.age}")
@Value("${user.age:25}")
int userAge;
@Autowired
private NacosConfigManager nacosConfigManager;
@Override
public void run(ApplicationArguments args) throws Exception {
System.out.println(userName);
System.out.println(userAge);
System.out.println(
String.format("Initial username=%s, userAge=%d", userName, userAge));
nacosConfigManager.getConfigService().addListener(
"nacos-config-example.properties", "DEFAULT_GROUP", new Listener() {
/**
* Callback with latest config data.
*
* For example, config data in Nacos is:
*
* user.name=Nacos user.age=25
*
* @param configInfo latest config data for specific dataId in Nacos
* server
*/
@Override
public void receiveConfigInfo(String configInfo) {
Properties properties = new Properties();
try {
properties.load(new StringReader(configInfo));
}
catch (IOException e) {
e.printStackTrace();
}
System.out.println("config changed: " + properties);
}
@Override
public Executor getExecutor() {
return null;
}
});
}
}
@@ -44,7 +86,7 @@ class SampleController {
@Value("${user.name}")
String userName;
@Value("${user.age}")
@Value("${user.age:25}")
int age;
@RequestMapping("/user")

17
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 +1,9 @@
package com.alibaba.cloud.examples;
import com.alibaba.cloud.examples.ConsumerApplication.EchoService;
import com.alibaba.cloud.sentinel.annotation.SentinelRestTemplate;
import com.alibaba.csp.sentinel.adapter.servlet.callback.UrlCleaner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@@ -7,15 +11,11 @@ import org.springframework.cloud.client.loadbalancer.LoadBalanced;
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.RequestMapping;
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
*/
@@ -26,6 +26,7 @@ public class ConsumerApplication {
@LoadBalanced
@Bean
@SentinelRestTemplate(urlCleanerClass = UrlCleaner.class, urlCleaner = "clean")
public RestTemplate restTemplate() {
return new RestTemplate();
}
@@ -43,17 +44,17 @@ public class ConsumerApplication {
@FeignClient(name = "service-provider", fallback = EchoServiceFallback.class, configuration = FeignConfiguration.class)
public interface EchoService {
@RequestMapping(value = "/echo/{str}", method = RequestMethod.GET)
@GetMapping(value = "/echo/{str}")
String echo(@PathVariable("str") String str);
@RequestMapping(value = "/divide", method = RequestMethod.GET)
@GetMapping(value = "/divide")
String divide(@RequestParam("a") Integer a, @RequestParam("b") Integer b);
default String divide(Integer a) {
return divide(a, 0);
}
@RequestMapping(value = "/notFound", method = RequestMethod.GET)
@GetMapping(value = "/notFound")
String notFound();
}

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
*/

10
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/readme-zh.md
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@@ -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);
}

8
spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/readme.md
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@@ -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;
}
@@ -105,7 +105,7 @@ The code of `nacos-discovery-consumer-example` project will be analyzed below, d
@FeignClient(name = "service-provider")
public interface EchoService {
@RequestMapping(value = "/echo/{str}", method = RequestMethod.GET)
@GetMapping(value = "/echo/{str}")
String echo(@PathVariable("str") String str);
}
@@ -123,11 +123,11 @@ The code of `nacos-discovery-consumer-example` project will be analyzed below, d
@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);
}