實現圖形介面: 接著我們使用Django的Admin二次定製一個圖形化介面,首先我們把語言設定為中文簡體.

修改: settings.py
LANGUAGE_CODE = 'zh-hans'
TIME_ZONE = 'Asia/Shanghai'

修改: apps.py
from django.apps import AppConfig
class MywebConfig(AppConfig):
    name = 'MyWeb'
    verbose_name = "伺服器引數收集"

接著我們來定義models.py資料庫模型,定義基本的資料查詢.

from django.db import models
from django.utils.html import format_html
import datetime

STATUS_CHOICES = (('d', '在用裝置'), ('p', '下線裝置'), ('w', '損壞裝置'),)

# 定義主機基本資訊表
class HostInfoDB(models.Model):
    id = models.AutoField(primary_key=True)
    # HostAddr = models.TextField(max_length=128,verbose_name="主機地址")
    HostAddr = models.CharField(max_length=128, verbose_name="主機地址")
    HostName = models.CharField(max_length=128, verbose_name="主機名稱")
    HostType = models.CharField(max_length=128, verbose_name="系統型別")
    HostPosition = models.CharField(max_length=128, verbose_name="機房位置")
    HostPlatform = models.CharField(max_length=128, verbose_name="所屬平臺")
    HostGroup = models.CharField(max_length=128, verbose_name="分組")
    HostDataTime = models.DateTimeField(verbose_name="檢查日期")
    HostUser = models.CharField(max_length=64, verbose_name="負責人")
    hostStats = models.CharField(max_length=1, choices=STATUS_CHOICES, verbose_name="裝置狀態")

    def __str__(self):
        return self.HostName

    # 用於給本表指定別名,這樣前端就不是英文的了
    class Meta():
        verbose_name = "裝置清單"
        verbose_name_plural = "裝置清單"

    # 裝置再用狀態
    def Status(self):
        if self.hostStats == 'd':
            format_td = format_html('<span style="padding:2px;background-color:green;color:white">在用裝置</span>')
        elif self.hostStats == 'p':
            format_td = format_html('<span style="padding:2px;background-color:yellow;color:black">下線裝置</span>')
        elif self.hostStats == 'w':
            format_td = format_html('<span style="padding:2px;background-color:red;color:white">損壞裝置</span>')
        return format_td

    Status.short_description = "當前狀態"

# 指定Ping檢測結果表
class HostPingInfo(models.Model):
    id = models.AutoField(primary_key=True)
    HostAddr = models.CharField(max_length=128, verbose_name="主機地址")
    flage = models.CharField(max_length=64)

    class Meta():
        verbose_name = "存活檢測"
        verbose_name_plural = "存活檢測"

    def Status(self):
        if self.flage == "True":
            ret = "已連線"
            color = "green"
            return format_html('<span style="color:{};">{}</span>',color,ret,)
        elif self.flage == "False":
            ret = "未連線"
            color = "red"
            return format_html('<span style="color:{};">{}</span>', color, ret,)
    Status.short_description = "狀態"

# 定義CPU/記憶體利用率資料表結構
class HostCPUOrMemInfo(models.Model):
    id = models.AutoField(primary_key=True)
    HostAddr = models.CharField(max_length=128, verbose_name="主機地址")
    Cpu_Count = models.IntegerField()
    Mem_Count = models.IntegerField()

    class Meta():
        verbose_name = "CPU記憶體效能"
        verbose_name_plural = "CPU記憶體效能"

    def Cpu_Speed(self):
        return format_html('<progress max="100" value="{}"></progress>',self.Cpu_Count)

    def Mem_Speed(self):
        return format_html('<progress max="100" value="{}"></progress>',self.Mem_Count)

    def Check(self):
        return format_html('<a href="/admin/MyWeb/hostdb/{}/change/">檢視</a>',self.id)

    Cpu_Speed.short_description = "CPU利用率"
    Mem_Speed.short_description = "Mem利用率"
 

繼續定製admin.py並與上方的資料庫檢視相互動.

from django.contrib import admin
from MyWeb.models import *

# 必須繼承ModelAdmin基類,才可以調整引數,HostDB則是你的表的名稱
@admin.register(HostInfoDB)
class MyAdmin(admin.ModelAdmin):
    admin.site.site_title="後臺管理"
    admin.site.site_header = "自動化監控平臺"

    # list_display = 你需要展示的欄位應該寫在這裡,此處是資料庫中的欄位
    list_display = ("HostAddr","HostName","HostType","HostPosition","HostDataTime","HostPlatform","HostGroup","HostUser","Status")
    # search_fields = 用於新增一個搜尋框,此處作為查詢條件
    #search_fields = ("HostAddr","HostType","Status",)
    # list_filter = 設定一個過濾器,此處是過濾條件
    list_filter = ("HostAddr","HostGroup",)
    # ordering = 設定一個排序條件,此處是以id作為排序依據
    ordering = ("id",)
    #list_per_page = 設定每頁顯示多少條記錄,預設是100條
    list_per_page = 10
    #list_editable = 設定預設可編輯欄位
    #list_editable = ("HostName",)
    # date_hierarchy = 顯示詳細時間分層篩選
    date_hierarchy = 'HostDataTime'
    # readonly_fields = 可以設定只讀欄位,就是無法修改的欄位
    #readonly_fields = ("hostCPU","hostMEM",)

# 定義Ping檢測顯示欄位
@admin.register(HostPingInfo)
class MyAdmin(admin.ModelAdmin):
    list_display = ("HostAddr","flage","Status")

# 定義記憶體CPU利用率欄位
@admin.register(HostCPUOrMemInfo)
class MyAdmin(admin.ModelAdmin):
    list_display = ("id","HostAddr","Cpu_Count","Cpu_Speed","Mem_Count","Mem_Speed","Check")
 

儲存後直接執行命令,完成命令列建表操作.

python manage.py makemigrations
python manage.py migrate
python manage.py createsuperuser

儲存後啟動,Django並訪問http://127.0.0.1:8000/admin登入後我們依次看一下定製效果.

主頁中的展示效果如下.

當我們需要增加自定義動作時,可以這樣寫,我們以HostCPUOrMemInfo為例

# 定義記憶體CPU利用率欄位
@admin.register(HostCPUOrMemInfo)
class MyAdmin(admin.ModelAdmin):
    list_display = ("id","HostAddr","Cpu_Count","Cpu_Speed","Mem_Count","Mem_Speed")

    # 新增的自定義動作,此處可執行操作
    def func(self, request, queryset):
        # 此處可以寫一些執行動作
        print(self, request, queryset)

    func.short_description = "自定義active動作"
    actions = [func, ]
    # Action選項都是在頁面上方顯示
    actions_on_top = True
    # Action選項都是在頁面下方顯示
    actions_on_bottom = False
    # 是否顯示選擇個數
    actions_selection_counter = True