使用Python进行网络请求：常见HTTP方法及异常处理问题

原创川长思鸟来 2025-03-18 17:15 25阅读 0赞

在Python中，我们可以使用requests库来进行网络请求。以下是一些常见的HTTP方法以及如何使用requests库来实现：

1. GET：
```python
import requests

url = 'http://example.com/api/data'
response = requests.get(url)

if response.status_code == 200:
    print(response.json())  # 如果数据是JSON格式，可以打印出来
else:
    print('GET request failed with status code:', response.status_code)
```

2. POST：
```python
data = {'key1': 'value1', 'key2': 'value2'}

url = 'http://example.com/api/data'
response = requests.post(url, data=data)

if response.status_code == 201:
    print('POST request successful with new resource ID:', response.json()['resource_id']))
else:
    print('POST request failed with status code:', response.status_code)
```

3. PUT：
```python
url = 'http://example.com/api/data/123'
new_data = {'key1': 'new_value1', 'key2': 'new_value2'}

response = requests.put(url, data=new_data)

if response.status_code == 200:
    print('PUT request successful with updated resource:', response.json())
else:
    print('PUT request failed with status code:', response.status_code)
```

4. DELETE：
```python
url = 'http://example.com/api/data/123'

response = requests.delete(url)

if response.status_code == 204:
    print('DELETE request successful, resource removed.')
else:
    print('DELETE request failed with status code:', response.status_code)
```

在处理网络请求时，我们通常会添加异常处理，以应对可能出现的错误情况。