这里有一个非常好的参考资料
https://www.springcloud.cc/spring-cloud-consul.html
下面我仅记录我的安装和简单使用过程。
因为官方下载实在是太慢了,这里有个百度网盘的下载链接。
链接:https://pan.baidu.com/s/1nMXRms3_ZPhgqawrcEcsdA 提取码:247m
下载解压后,里面只有一个consul.exe,在cmd命令行窗口进入该目录,
consul --version
能看到版本号就说明一切正常,启动consul
consul agent -dev
访问http://localhost:8500 一切正常。
(使用服务器学习的同学记得去开放安全端口,8500)
接下来我们就要整进去我们的SpringCloud了。
新建一个服务提供者,new –>module
这里我起名为:cloud-providerconsul-payment8006
给pom.xml添加依赖。
<dependencies>
<!--springcloud consul-server-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!--日常通用jar包-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
项目的结构如下
修改application.yml中的配置文件
server:
port: 8006
spring:
application:
name: consul-provider-payment
###consul注册中心地址
cloud:
consul:
host: localhost
port: 8500
discovery:
#hostname: 127.0.0.1
service-name: ${spring.application.name}
修改PaymentController
package com.xn2001.springcloud.controller;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.UUID;
@RestController
@Slf4j
public class PaymentController {
@Value("${server.port}")
private String serverPort;
@GetMapping("/payment/consul")
public String paymentConsul(){
return "Spring cloud with consul port: "+serverPort+"\t "+ UUID.randomUUID().toString();
}
}
修改启动类PaymentMain8006
package com.xn2001.springcloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
/**
* Created by 乐心湖 on 2020/5/1 15:26
*/
@SpringBootApplication
@EnableDiscoveryClient
public class PaymentMain8006 {
public static void main(String[] args) {
SpringApplication.run(PaymentMain8006.class,args);
}
}
开始启动,可能有点慢,等一等。
刷新consul页面,可以看到我们的服务已经注册进来了。
访问:http://localhost:8006/payment/consul
可以看到正常输出。
new新建一个module
起名为:cloud-consumerConsul-order80
修改pom.xml
<dependencies>
<!--springcloud consul-server-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>
<!--springboot整合web组件-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!--日常通用jar包配置-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
</dependencies>
项目结构如下
修改application.yml 配置文件
### consul服务端口号
server:
port: 80
spring:
application:
name: cloud-consumer-order
###consul服务注册中心
cloud:
consul:
host: localhost
port: 8500
discovery:
#hostname: 127.0.0.1
service-name: ${spring.application.name}
修改启动类,注意注解
package com.xn2001.springcloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@SpringBootApplication
@EnableDiscoveryClient
public class OrderConsulMain80 {
public static void main(String[] args) {
SpringApplication.run(OrderConsulMain80.class, args);
}
}
注册Bean,RestTemplate模板(调用api)
package com.xn2001.springcloud.config;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
/**
* Created by 乐心湖 on 2020/4/13 16:51
*/
@Configuration
public class ApplicationContextConfig {
@Bean
@LoadBalanced
public RestTemplate getRestTemplate(){
return new RestTemplate();
}
}
OrderConsulController
package com.xn2001.springcloud.controller;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import javax.annotation.Resource;
/**
* Created by 乐心湖 on 2020/5/1 15:58
*/
@RestController
@Slf4j
public class OrderConsulController {
public static final String INVOKE_URL = "http://consul-provider-payment";
@Resource
private RestTemplate restTemplate;
@GetMapping(value = "/consumer/payment/consul")
public String getPaymentInfo() {
return restTemplate.getForObject(INVOKE_URL + "/payment/consul", String.class);
}
}
访问http://localhost/consumer/payment/consul
结果是正常的,到这里来集成就差不多OK了,深度学习还得查官方文档。