Python + Flask 实现接口接收 CPU 信息

今天的内容是基于 Python + Flask 实现接口接收内存信息来进一步分享如何使用 Python + Flask 接收 CPU 的信息。

原理：

通过 Python 调用 Shell 脚本去执行 CPU 的相关信息，然后进行处理再请求 Requests 库来向后端定义好的接口来推送数据。

Part1：收集端

 1 import os
 2 import requests
 3 import json
 4 import time
 5  
 6 url="http://10.8.31.61:5555/GetCpuResource"
 7 cpu_data={}
 8 cpu_cmd = [
 9 "cat /proc/cpuinfo |grep 'processor' |wc -l",
10 "cat /proc/cpuinfo |grep 'physical id'|sort |uniq |wc -l",
11 "cat /proc/cpuinfo |grep 'cpu cores'|awk -F' ' '{print $4}' |sort |wc -l",
12 "uptime |awk -F':' '{print $5}'"
13 ]
14 def exec_cmd():
15     for cmd in cpu_cmd:
16         print(cmd)
17         response = os.popen(cmd)
18         if("processor" in cmd):
19             cpu_data['logic_cpu']=str(response.read()).replace("\n","")
20         elif("physical" in cmd):
21             cpu_data['physical_cpu']=str(response.read()).replace("\n","")
22         elif("cores" in cmd):
23             cpu_data['cpu_cores']=str(response.read()).replace("\n","")
24         elif("uptime" in cmd):
25             cpu_data['cpu_load'] = str(response.read()).replace("\n", "")
26             if (len(cpu_data['cpu_load']) < 3):
27                 response = os.popen("uptime |awk -F':' '{print $4}'")
28                 cpu_data['cpu_load'] = str(response.read()).replace("\n", "")
29  
30     else:
31         cpu_data['hostname']=str(os.popen("hostname |awk -F'.' '{print $1}' |awk -F'-' '{print $2}'").read()).replace("\n","")
32     response.close()
33  
34 def httpPost(datas):
35     header = {"Content-Type":"application/json"}
36     resp_content = requests.post(url=url,data=json.dumps(datas),headers=header)
37     print(resp_content.text)
38  
39 if __name__ == '__main__':
40     while True:
41         exec_cmd()
42         httpPost(cpu_data)
43         time.sleep(3600)

Part2：接收端

 1 #CPU路由处理
 2 @resource.route('/GetCpuResource',methods=['POST'])
 3 def GetCpuResource():
 4     '''接收来自linux上传的数据'''
 5     query = request.get_json()
 6     hostname = query["hostname"]
 7     logic_cpu = query["logic_cpu"]
 8     physical_cpu = query["physical_cpu"]
 9     cpu_cores = query["cpu_cores"]
10     cpu_load = query["cpu_load"]
11     createtime = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
12     sql = "insert into cpu_info (hostname,logic_cpu,physical_cpu,cpu_cores,cpu_load,create_time) VALUES "
13     data = "('" + hostname + "','" + logic_cpu + "','" + physical_cpu + "','" + cpu_cores + "','" + cpu_load + "','" + str(createtime) + "'"
14     end = data + ")"
15     sql = sql + end
16     print(sql)
17     db = conndb()
18     db.execute_sql(sql)
19     data = {'code': 200, 'message': 'success', 'status': '10000'}
20     return json.dumps(data)

Part3：展示端

这部分主要分为以下两块内容：

第一块是页面请求

<template>
    <div>
        <div class="crumbs">
            <el-breadcrumb separator="/">
                <el-breadcrumb-item>
                    <i class="el-icon-lx-cascades"></i> CPU信息
                </el-breadcrumb-item>
            </el-breadcrumb>
        </div>
        <div class="container">
            <div class="handle-box">
                <el-input v-model="query.hostname" placeholder="环境" class="handle-input mr10" clearable @clear="clear_name"></el-input>
                <el-button type="primary" icon="el-icon-search" @click="handleSearch">搜索</el-button>
            </div>
            <el-table
                :data="tableData"
                border
                class="table"
                ref="multipleTable"
                header-cell-class-name="table-header">
                <el-table-column prop="id" label="ID" width="55" align="center"></el-table-column>
                <el-table-column prop="hostname" label="环境"></el-table-column>
                <el-table-column prop="logic_cpu" label="逻辑CPU"></el-table-column>
                <el-table-column prop="physical_cpu" label="物理CPU"></el-table-column>
                <el-table-column prop="cpu_cores" label="CPU核数"></el-table-column>
                <el-table-column prop="cpu_load" width="255" label="CPU负载Avg[1min,5min,15min]"></el-table-column>
                <!--<el-table-column prop="available" label="可用">-->
                  <!--<template #default="scope">-->
                        <!--<el-tag :type="availableplus(scope.row.available) === 'success' ? 'success': 'danger'">{{ scope.row.available }}</el-tag>-->
                  <!--</template>-->
                <!--</el-table-column>-->
                <el-table-column prop="create_time" width="160" label="创建时间"></el-table-column>
            </el-table>
          <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="query.pageIndex"
            :page-sizes="[5, 10, 20, 30]"
            :page-size="query.pageSize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="parseInt(pageTotal)">
          </el-pagination>
        </div>
    </div>
</template>
 
<script>
import server from '../api/request.js'
export default {
  name: 'InterfaceCpu',
  data () {
    return {
      query: {
        hostname: '',
        pageIndex: 1,
        pageSize: 10
      },
      tableData: [],
      pageTotal: 0
    }
  },
  created () {
    this.getMemData()
  },
  methods: {
    // 获取后端返回的真实数据
    getMemData () {
      server({url: '/getCpuList', data: this.query, method: 'post'})
        .then(response => {
          console.log('**********')
          console.log(response)
          this.tableData = response.listdata
          console.log(this.tableData)
          this.pageTotal = response.pageTotal || 5
        })
    },
    // 触发搜索按钮
    handleSearch () {
      server({url: '/getCpuList', data: this.query, method: 'post'})
        .then(response => {
          console.log(response)
          this.tableData = response.listdata
          console.log(this.tableData)
          this.pageTotal = response.pageTotal || 5
        })
    },
    // 分页导航
    handleSizeChange (val) {
      // console.log(val)
      this.$set(this.query, 'pageSize', val)
      // console.log(this.query)
      this.getMemData()
    },
    // 翻页改变页码触发
    handleCurrentChange (val) {
      this.$set(this.query, 'pageIndex', val)
      this.getMemData()
    },
    clear_name () {
      this.query.hostname = ''
      this.getMemData()
    },
    freeplus(rows){
      const free =rows.replace("M","")
      // console.log(free)
      // console.log(typeof free)
      return Number(free) <100 ? 'danger' : 'success'
    },
    availableplus(rows){
      const availabl =rows.replace("M","")
      // console.log(free)
      // console.log(typeof free)
      return Number(availabl) <1000 ? 'danger' : 'success'
    }
  }
}
</script>
 
<style scoped>
.handle-box {
    margin-bottom: 20px;
}
 
.handle-select {
    width: 120px;
}
 
.handle-input {
    width: 300px;
    display: inline-block;
}
.table {
    width: 100%;
    font-size: 14px;
}
.red {
    color: #ff0000;
}
.mr10 {
    margin-right: 10px;
}
.table-td-thumb {
    display: block;
    margin: auto;
    width: 40px;
    height: 40px;
}
</style>

第二块是后端请求处理

 1 @resource.route('/getCpuList',methods=['POST'])
 2 def getCpuList():
 3     '''fe的页面列表数据获取'''
 4     query = request.get_json()
 5     print(query)
 6     if (query["hostname"] == ""):
 7         sql1 = "select id,hostname,logic_cpu,physical_cpu,cpu_cores,cpu_load,create_time from cpu_info  order by id DESC limit " + str(
 8             (query['pageIndex'] - 1) * query["pageSize"]) + "," + str(query["pageSize"])
 9         count_sql = "select count(*) from mem_info"
10         colume_sql = "select id from mem_info"
11  
12     else:
13         sql1 = "select id,hostname,logic_cpu,physical_cpu,cpu_cores,cpu_load,create_time from cpu_info where hostname like '%" + str(query["hostname"]) + "%' order by id DESC" + " limit " + str(
14             (query['pageIndex'] - 1) * query["pageSize"]) + "," + str(query["pageSize"])
15         count_sql = "select count(*) from cpu_info where hostname like '%" + str(
16             query["hostname"]) + "%' order by id DESC"
17         colume_sql = "select id from cpu_info"
18  
19     sql2 = "select id,hostname,logic_cpu,physical_cpu,cpu_cores,cpu_load,create_time from cpu_info"
20     db = conndb()
21     listdata = db.get_data(sql1, sql2)
22     db = conndb()
23     result = db.get_data(count_sql, colume_sql)
24     print(result)
25     pageTotal = result[0]['id']
26     print(listdata)
27     print(pageTotal)
28     data = {'listdata': listdata, "pageTotal": pageTotal, "code": 200}
29     return json.dumps(data)

Part4：页面展示

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原文地址：https://www.cnblogs.com/Wu13241454771/p/15775150.html