prometheus 自定義指標 02

一、寫測試代碼，端口6060

package com.example.demo.controller;

import com.example.demo.entity.User;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.util.Random;
import java.util.concurrent.TimeUnit;

@RestController
public class TestController {

    @PostMapping("/order")
    public User getUser() {
        User user = new User();
        user.setId(1L);
        try {
            TimeUnit.MILLISECONDS.sleep(new Random().nextInt(10) * 100);
        } catch (InterruptedException e) { }
        return user;
    }


    public static void main(String[] args) {
        RestTemplate restTemplate = new RestTemplate();

        while (true) {
            String url = "http://localhost:6060/order";
            if (new Random().nextInt(10) > 3) {
                url = "http://localhost:5050/order";
            }
            String result = restTemplate.postForObject(url, null, String.class);
            System.out.println(result);
        }
    }

}

訪問：http://localhost:6060/actuator/prometheus

結果以下（訪問了接口，纔有數據）：

 

二、新建一個Dashboard

三、選擇圖表

四、編輯圖表

五、在DataSouce選擇數據源，輸入查詢條件