springcloud集成其它语言

╰+攻爆jí腚メ 2022-03-08 15:38 668阅读 0赞

# 简介： #

non-jvm语言也想使用Eureka,Ribbon和Config Server? Spring Cloud Netflix Sidecar灵感来自Netflix Prana，它包含一个简单的http api去获取给定服务的所有实例（主机和端口）。你也可以通过嵌入式Zuul代理代理服务调用，Zuul 代理从Eureka获取全部路由信息。可直接通过主机查找或通过Zuul代理访问Spring Cloud Config Server。non-jvm程序需要实现健康检查，这样Sidecar 才能向eureka 报告程序是否在线或宕机。

springcloud默认支持的是java语言，我们可以简单快速的讲起他语言缩写的工程集成进入springcloud体系下，比如python,node.js,c++等等。

<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-netflix-sidecar</artifactId>
    </dependency>

上面的依赖包已经给我们实现了，三方语言与springcloud之间的监听交互

# 操作步骤： #

1.  创建sidecar项目：![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N0dWR5NDAzNA_size_16_color_FFFFFF_t_70][]

@EnableSidecar
    @SpringBootApplication
    public class SidecarApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(SidecarApplication.class, args);
        }
    
    }

application.yml如下：
    server:
      port: 5678
    spring:
      application:
        name: sidecar
    sidecar:
      port: 3000
      health-uri: http://localhost:${sidecar.port}/health
    eureka:
      client:
        service-url:
          defaultZone: http://admin:pwd@localhost/eureka/

2. 创建python项目

#!/usr/bin/python3
    # -*- coding:utf-8 -*-
    import json
    from flask import Flask, Response
    import requests
    
    
    app = Flask(__name__)
    @app.route("/health")
    def health():
        result = {'status': 'UP'}
        return Response(json.dumps(result), mimetype='application/json')
    @app.route("/getUser")
    def getUser():
        result = {'username': 'python', 'password': 'python'}
        return Response(json.dumps(result), mimetype='application/json')
    @app.route("/getJava")
    def getJava():
        result = {'username': 'python', 'password': 'python'}
        url = 'http://localhost:5678/consumer1/java-user'  # django api路径
    
        parms = {
            'name': '客户端',  # 发送给服务器的内容
        }
    
        headers = {  # 请求头 是浏览器正常的就行 就这里弄了一天 - -！
            'User-agent': 'none/ofyourbusiness',
            'Spam': 'Eggs'
        }
    
        resp = requests.post(url, data=parms, headers=headers)  # 发送请求
    
        # Decoded text returned by the request
        text = resp.text
        # print(json.loads(text))
    
        return Response(json.dumps(text), mimetype='application/json')
    app.run('0.0.0.0', 3000)
    app.run(port=3000, host='0.0.0.0')

3.创建java服务

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N0dWR5NDAzNA_size_16_color_FFFFFF_t_70 1][]

@RestController
    public class PythonController {
    
        @Autowired
        private RestTemplate restTemplate;
        @RequestMapping("/java-user")
        public String JavaUser() {
            return "{'username': 'java', 'password': 'java'}"  ;
        }
        @RequestMapping("/python-user")
        public String PythonUser() {
            return restTemplate.getForEntity("http://sidecar/getUser", String.class).getBody();
        }
    }

4.访问

[http://localhost:20110/java-user][http_localhost_20110_java-user] 证明可以访问java服务

[http://localhost:20110/python-user][http_localhost_20110_python-user] 证明java服务可以访问python

[http://localhost:5678/consumer1/java-user][http_localhost_5678_consumer1_java-user] 证明sidecar可以转发访问java服务

[http://localhost:3000/getJava][http_localhost_3000_getJava] 证明python服务可以访问java服务

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N0dWR5NDAzNA_size_16_color_FFFFFF_t_70]: /images/20220308/2e9e537d0fbc4f26be1af8abe4f1a266.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3N0dWR5NDAzNA_size_16_color_FFFFFF_t_70 1]: /images/20220308/992398c67fdc4ba8a73ab70fdaaad488.png
[http_localhost_20110_java-user]: http://10.4.93.6:20110/java-user
[http_localhost_20110_python-user]: http://10.4.93.6:20110/python-user
[http_localhost_5678_consumer1_java-user]: http://localhost:5678/consumer1/java-user
[http_localhost_3000_getJava]: http://localhost:3000/getJava