基于Django的Admin后台实现定制简单监控页

我们使用django的admin二次定制一个图形化界面,首先我们把语言设置为中文简体.

修改: ttings.pylanguage_code = 'zh-hans'time_zone = 'asia/shanghai'修改: apps.pyfrom django.apps import appconfigclass mywebconfig(appconfig):    name = 'myweb'    verbo_name = "服务器参数收集"

接着我们来定义models.py数据库模型,定义基本的数据查询.

from django.db import modelsfrom django.utils.html import format_htmlimport datetimestatus_choices = (('d', '在用设备'), ('p', '下线设备'), ('w', '损坏设备'),)# 定义主机基本信息表class hostinfodb(models.model):    id = models.autofield(primary_key=true)    # hostaddr = models.textfield(max_length=128,verbo_name="主机地址")    hostaddr = models.charfield(max_length=128, verbo_name="主机地址")    hostname = models.charfield(max_length=128, verbo_name="主机名称")    hosttype = models.charfield(max_length=128, verbo_name="系统类型")    hostposition = models.charfield(max_length=128, verbo_name="机房位置")    hostplatform = models.charfield(max_length=128, verbo_name="所属平台")    hostgroup = models.charfield(max_length=128, verbo_name="分组")    hostdatatime = models.datetimefield(verbo_name="检查日期")    hostur = models.charfield(max_length=64, verbo_name="负责人")    host1935年12月召开的什么会议stats = models.charfield(max_length=1, choices=status_choices, verbo_name="设备状态")    def __str__(lf):        return lf.hostname    # 用于给本表指定别名,这样前端就不是英文的了    class meta():        verbo_name = "设备清单"        verbo_name_plural = "设备清单"    # 设备再用状态    def status(lf):        if lf.hoststats == 'd':            format_td = format_html('<span style="padding:2px;background-color:green;color:white">在用设备</span>')        elif lf.hoststats == 'p':            format_td = format_html('<span style="padding:2px;background-color:yellow;color:black">下线设备</span>')        elif lf.hoststats == 'w'家长教育理念:            format_td = format_html('<span style="padding:2px;background-color:red;color:white">损坏设备</span>')        return format_td    status.short_description = "当前状态"# 指定ping检测结果表class hostpinginfo(models.model):    id = models.autofield(primary_key=true)    hostaddr = models.charfield(max_length=128, verbo_name="主机地址")    flage = models.charfield(max_length=64)    class meta():        verbo_name = "存活检测"        verbo_name_plural = "存活检测"    def status(lf):        if lf.flage == "true":            ret = "已连接"            color = "green"            return format_html('<span style="color:{};">{}</span>',color,ret,)        elif lf.flage == "fal":            ret = "未连接"            color = "red"            return format_html('<span style="color:{};">{}</span>', color, ret,)    status.short_description = "状态"# 定义cpu/内存利用率数据表结构class hostcpuormeminfo(models.model):    id = models.autofield(primary_key=true)    hostaddr = models.charfield(max_length=128, verbo_name="主机地址")    cpu_count = models.integerfield()    mem_count = models.integerfield()    class meta():        verbo_name = "cpu内存性能"        verbo_name_plural = "cpu内存性能"    def cpu_speed(lf):        return format_html('<progress max="100" value="{}"></progress>',lf.cpu_count)    def mem_speed(lf):  东坡诗词      return format_html('<progress max="100" value="{}"></progress>',lf.mem_count)    def check(lf):        return format_html('<a href="/admin/myweb/hostdb/{}/change/" rel="external nofollow" >查看</a>',lf.id)    cpu_speed.short_description = "cpu利用率"    mem_speed.short_description = "mem利用率"

继续定制admin.py并与上方的数据库视图相交互.

from django.contrib import adminfrom myweb.models import *# 必须继承modeladmin基类,才可以调整参数,hostdb则是你的表的名称@admin.register(hostinfodb)class myadmin(admin.modeladmin):    admin.site.site_title="后台管理"    admin.site.site_header = "自动化监控平台"    # list_display = 你需要展示的字段应该写在这里,此处是数据库中的字段    list_display = ("hostaddr","hostname","hosttype","hostposition","hostdatatime","hostplatform","hostgroup","hostu朱自清散文代表作r","status")    # arch_fields = 用于添加一个搜索框,此处作为查询条件    #arch_fields = ("hostaddr","hosttype","status",)    # list_filter = 设置一个过滤器,此处是过滤条件    list_filter = ("hostaddr","hostgroup",)    # ordering = 设置一个排序条件,此处是以id作为排序依据    ordering = ("id",)    #list_per_page = 设置每页显示多少条记录,默认是100条    list_per_page = 10    #list_editable = 设置默认可编辑字段    #list_editable = ("hostname",)    # date_hierarchy = 显示详细时间分层筛选    date_hierarchy = 'hostdatatime'    # readonly_fields = 可以设置只读字段,就是无法修改的字段    #readonly_fields = ("hostcpu","hostmem",)# 定义ping检测显示字段@admin.register(hostpinginfo)class myadmin(admin.modeladmin):    list_display = ("hostaddr","flage","status")# 定义内存cpu利用率字段@admin.register(hostcpuormeminfo)class myadmin(admin.modeladmin):    list_display = ("id","hostaddr","cpu_count","cpu_speed","mem_count","mem_speed","check")

保存后直接执行命令,完成命令行建表操作.

python manage.py makemigrationspython manage.py migratepython manage.py createsuperur

保存后启动,django并访问http://127.0.0.1:8000/admin登录后我们依次看一下定制效果.

主页中的展示效果如下.

当我们需要增加自定义动作时,可以这样写,我们以hostcpuormeminfo为例

# 定义内炒冬瓜的做法存cpu利用率字段@admin.register(hostcpuormeminfo)class myadmin(admin.modeladmin):    list_display = ("id","hostaddr","cpu_count","cpu_speed","mem_count","mem_speed")    # 添加的自定义动作,此处可执行操作    def func(lf, request, queryt):        # 此处可以写一些执行动作        print(lf, request, queryt)    func.short_description = "自定义active动作"    actions = [func, ]    # action选项都是在页面上方显示    actions_on_top = true    # action选项都是在页面下方显示    actions_on_bottom = fal    # 是否显示选择个数    actions_lection_counter = true

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