Docker Compose 实战-SpringBoot 微服务

package com.docker.compose.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
    @Autowired
    protected StringRedisTemplate redisTemplate;

    // 每一次访问，total都加递增加1
    @GetMapping("/hello")
    public String hello() {
        Long total= redisTemplate.opsForValue().increment("total");
        return "hello liang, now total value is : " + total;
    }
}

server:
  port: 8080
spring:
  redis:
    # 这个redis是做了域名访问的，在后续 docker network 才能访问
    # 在实际开发环境中，请替换实际redis地址，比如：127.0.01
    host: redis

FROM openjdk:11

COPY *.jar /app.jar

CMD ["--server.port=8080"]

EXPOSE 8080

ENTRYPOINT ["java","-jar","app.jar"]

version: '3.8'
services:
  app:
    build: .
    ports:
      - '8080:8080'
    # 首先启动 redis 
    depends_on:
      - redis
  redis:
    image: 'redis:alpine'

$ mkdir /home/app

# 进入项目目录
$ cd /home/app

docker-compose up