在Python中，如何从Json响应中获取特定字段？

2024-04-27 • 问答

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我想做的是获取特定的字段，例如标签，操作系统等，但是我不知道在这种情况下应该实现什么逻辑来挑选我想要收集的信息。 / p>

这是我到目前为止所做的

{
  "assets": [
    {
      "id": 518447,"created_at": "2019-09-10T10:13:38Z","priority": 10,"operating_system": "microsoft - Windows - Windows Server 2008 R2,Enterprise Edition - SP1","notes": null,"last_booted_at": null,"primary_locator": "external_id","locator": "1112359","vulnerabilities_count": 22,"status": "active","last_seen_time": "2019-09-08T16:00:17Z","network_ports": [
        {
          "id": 33550493,"port_number": 180,"extra_info": "","hostname": null,"name": "HTTP","ostype": "","product": "JBoss EAP","protocol": "tcp","state": "open","version": "4.2.3.GA"
        },{
          "id": 33550494,"port_number": 100,"name": "snMP","product": null,"protocol": "udp","version": null
        },],"tags": [
        "Windows Server","DO - DO SPG BOM"
      ],"owner": null,"urls": {
        "vulnerabilities": ""
      },"ip_address": "10.10.10.1","database": null,"fqdn": null,"netbios": null,"application": null,"file": null,"mac_address": null,"ec2": null,"url": null,"external_id": "1112359","ipv6": null,"asset_groups": [
        {
          "id": 4,"name": "0 Global - All"
        },{
          "id": 204,"name": "DO - All"
        },{
          "id": 417,"name": "Do - All"
        }
      ]
    },

在这种情况下，我不知道该如何前进。

有什么想法吗？

首先，您的json无效，缺少右括号。这个有效：

{
"assets": [{
            "id": 518447,"created_at": "2019-09-10T10:13:38Z","priority": 10,"operating_system": "Microsoft - Windows - Windows Server 2008 R2,Enterprise Edition - SP1","notes": null,"last_booted_at": null,"primary_locator": "external_id","locator": "1112359","vulnerabilities_count": 22,"status": "active","last_seen_time": "2019-09-08T16:00:17Z","network_ports": [{
                    "id": 33550493,"port_number": 180,"extra_info": "","hostname": null,"name": "HTTP","ostype": "","product": "JBoss EAP","protocol": "tcp","state": "open","version": "4.2.3.GA"
                },{
                    "id": 33550494,"port_number": 100,"name": "SNMP","product": null,"protocol": "udp","version": null
                }
            ],"tags": [
                "Windows Server","DO - DO SPG BOM"
            ],"owner": null,"urls": {
                "vulnerabilities": ""
            },"ip_address": "10.10.10.1","database": null,"fqdn": null,"netbios": null,"application": null,"file": null,"mac_address": null,"ec2": null,"url": null,"external_id": "1112359","ipv6": null,"asset_groups": [{
                    "id": 4,"name": "0 Global - All"
                },{
                    "id": 204,"name": "DO - All"
                },{
                    "id": 417,"name": "Do - All"
                }
        ]
    }]
}

使用json创建变量后，您可以通过以下方式访问数据：

print(json_format['assets'])

这将返回['assets']中的所有对象：

[{'id': 518447,'created_at': '2019-09-10T10:13:38Z','priority': 10,'operating_system': 'Microsoft - Windows - Windows Server 2008 R2,Enterprise Edition - SP1','notes': None,'last_booted_at': None,'primary_locator': 'external_id','locator': '1112359','vulnerabilities_count': 22,'status': 'active','last_seen_time': '2019-09-08T16:00:17Z','network_ports': [{'id': 33550493,'port_number': 180,'extra_info': '','hostname': None,'name': 'HTTP','ostype': '','product': 'JBoss EAP','protocol': 'tcp','state': 'open','version': '4.2.3.GA'},{'id': 33550494,'port_number': 100,'name': 'SNMP','product': None,'protocol': 'udp','version': None}],'tags': ['Windows Server','DO - DO SPG BOM'],'owner': None,'urls': {'vulnerabilities': ''},'ip_address': '10.10.10.1','database': None,'fqdn': None,'netbios': None,'application': None,'file': None,'mac_address': None,'ec2': None,'url': None,'external_id': '1112359','ipv6': None,'asset_groups': [{'id': 4,'name': '0 Global - All'},{'id': 204,'name': 'DO - All'},{'id': 417,'name': 'Do - All'}]}]

您可以通过在['assets']对象之后直接添加下一个对象来选择下一个对象：

print(json_format['assets'][0]['ip_address'])

10.10.10.1

而且这种情况不断发生：

print(json_format['assets'][0]['network_ports'][0]['version'])

4.2.3.GA

使用[0]是因为我们希望从['assets']对象的第一次出现到网络端口的第一次出现的数据。 [1]将是具有此标题的第二个对象。

在Python中，如何从Json响应中获取特定字段？

lxd2006121146 回答：在Python中，如何从Json响应中获取特定字段？

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