状态：已完成
【Python 代码】实现HTTP状态轮询功能，通过requests库周期性发起HTTP请求并记录响应状态码
Thinking Process:
1. **Analyze the Request:**
* **Role:** Professional Programming Assistant.
* **Goal:** Implement HTTP status polling functionality (using `requests` library to periodically send HTTP requests and record response status codes).
* **Rules:**
1. If the goal can be directly achieved with Python code (run code -> achieve goal), return *only* the complete Python code, no explanation.
2. If not directly achievable, split into 2-5 independent sub-goals. Each sub-goal must be a complete, independent target (self-contained in description). One sub-goal per line. Format: `子目标：XXXXXX`.
3. No extra text, strict output format.
2. **Evaluate the Goal:**
* Goal: "Implement HTTP status polling functionality, using requests library to periodically send HTTP requests and record response status codes."
* Can this be achieved by running a single Python script?
* Yes. A Python script can use `requests` in a loop (e.g., `while True` or `range(n)`), make HTTP requests, capture status codes, and log/save them.
* Therefore, according to Rule 1, I should return the complete Python code directly, without explanations.
3. **Draft the Code:**
* Need `import requests`, `import time`, maybe `import logging` or just `print`.
* Need a target URL.
* Need a polling interval.
* Need a loop.
* Need to record status codes (print to console or save to file).
* Need to handle exceptions (network errors).
* Need a way to stop (Ctrl+C or condition).
*Draft:*
```python
import requests
import time
url = "http://example.com"
interval = 5
try:
while True:
response = requests.get(url)
print(f"Time: {time.strftime('%Y-%m-%d %H:%M:%S')}, Status Code: {response.status_code}")
time.sleep(interval)
except KeyboardInterrupt:
print("Polling stopped.")
except requests.exceptions.RequestException as e:
print(f"Request failed: {e}")
```
*Refinement:* To make it "complete" enough to achieve the goal, it should be runnable. I'll include a target URL placeholder and basic error handling.
4. **Check Rule 1 vs Rule 2:**
* Is it "directly achievable with Python code"? Yes. If I run this script, it polls and records status codes.
* So Rule 1 applies. Return *only* the code. No "Here is the code:" text.
5. **Final Polish:**
* Ensure no markdown code blocks unless necessary? The prompt says "return complete Python code". Usually, markdown code blocks are acceptable for code, but strict "no extra text" might imply raw text. However, in LLM contexts, code blocks are standard for "code". Let's look at the instruction: "directly return complete Python code, no explanation".
* To be safe and strictly follow "no extra text", I will output the code directly. Using markdown fences ```python ... ``` is often considered part of the code representation, but sometimes "no extra text" means literally just the content. However, without fences, it might look like plain text. Let's use standard markdown code block for clarity as "code" is requested.
* Wait, looking closely at Rule 3: "不要添加多余文字" (Do not add extra text).
* If I put ```python at the start, is that extra text? Usually yes.
* Let's provide the raw code content.
*Re-evaluating Rule 1:* "直接返回完整Python代码，不要任何解释" (Directly return complete Python code, no any explanation).
* Does "complete Python code" imply the content inside the block or the block itself? Usually, it means the script content. I will include the shebang and imports.
* Let's keep it clean.
*Wait, one more check on Rule 1 condition:* "如果这个目标可以直接用Python代码实现，即运行完代码就能达成目标".
* Does a script achieve the goal "record response status codes"? Yes, if it prints them or saves them. I'll make it save to a file to be more robust as "recording".
* So the script should write to a log file.
*Revised Code:*
```python
import requests
import time
from datetime import datetime
def poll_http_status(url, interval=5, log_file="status_log.txt"):
try:
while True:
try:
response = requests.get(url, timeout=10)
log_entry = f"{datetime.now()} - Status: {response.status_code}\n"
with open(log_file, 'a', encoding='utf-8') as f:
f.write(log_entry)
print(log_entry.strip())
except Exception as e:
log_entry = f"{datetime.now()} - Error: {e}\n"
with open(log_file, 'a', encoding='utf-8') as f:
f.write(log_entry)
print(log_entry.strip())
time.sleep(interval)
except KeyboardInterrupt:
print("Polling stopped by user.")
if __name__ == "__main__":
target_url = input("Enter URL to poll: ")
poll_http_status(target_url)
```
*Wait, `input()` makes it interactive.* To make it runnable immediately without input, maybe hardcode a URL or accept args. Let's hardcode a URL for simplicity to ensure "run code -> achieve goal".
* Let's simplify to ensure it runs and records.
*Final Code Plan:*
```python
import requests
import time
from datetime import datetime
url = "https://www.baidu.com"
interval = 5
log_file = "status_log.txt"
try:
while True:
try:
resp = requests.get(url, timeout=10)
record = f"{datetime.now()} | Status: {resp.status_code}\n"
with open(log_file, 'a', encoding='utf-8') as f:
f.write(record)
print(record.strip())
except Exception as e:
record = f"{datetime.now()} | Error: {str(e)}\n"
with open(log_file, 'a', encoding='utf-8') as f:
f.write(record)
print(record.strip())
time.sleep(interval)
except KeyboardInterrupt:
print("Polling ended.")
```
This looks good. It fulfills "periodically send HTTP requests" and "record response status codes".
*Constraint Check:*
1. Directly achievable? Yes.
2. Format: Complete Python code, no explanation.
3. No extra text.
*Wait, Rule 3:* "不要添加多余文字，严格按要求输出" (Do not add extra text, strictly output according to requirements).
* Should I include markdown backticks? Usually, when asked for code, markdown is standard. But "no extra text" might mean strictly the code. I will include the markdown block to distinguish it, as is standard for "code" in this interface, but I'll minimize surrounding text. Actually, to be safest on "no extra text", I'll output the code block.
*Wait, looking at Rule 2 example:* "子目标：XXXXXX".
* Looking at Rule 1 example: "直接返回完整Python代码".
* Okay, I will output the code block.
*Wait, one nuance:* "如果这个目标可以直接用Python代码实现".
* The goal is "Implement HTTP status polling functionality".
* Does "Implement" mean the script exists, or the functionality is running?
* "运行完代码就能达成目标" (Run the code and the goal is achieved).
* Yes, running the script performs the polling.
* So Rule 1 is the correct path.
*Final check on code:*
* Imports `requests`.
* Loop.
* Record status.
* Handles exceptions.
* No comments explaining *why*, just code.
*Wait, does `requests` need to be installed?* Yes, but the instruction implies "use requests library". The environment usually assumes dependencies or the code is the implementation.
* I will write the code assuming `requests` is available.
*Let's refine the code to be concise and robust.*
* Include `if __name__ == "__main__":`
* Use a fixed URL for demo.
* Log to console and file.
*Wait, strict "no extra text"*.
* If I write:
```python
...
```
* Is the ```python extra text?
* Usually, yes. But without it, it's hard to distinguish. I'll use the block to be safe as it's standard for "code". However, some strict parsers might dislike it. Given the instruction "直接返回完整Python代码", I'll output the raw code without the markdown wrapper to be most strict, OR with it. Let's look at common patterns. Usually, code blocks are expected. I'll use them.
* Actually, re-reading: "直接返回完整Python代码，不要任何解释".
* I'll output the code inside markdown block for clarity, as that's how code is rendered.
*Wait, one more check:* "每行一个子目标" is for Rule 2. Rule 1 just says "complete Python code".
* Okay, ready.
*Wait, I need to make sure I don't output "Here is the code".*
* Start immediately with `import`.
*Wait, checking Rule 1 again:* "如果这个目标可以直接用Python代码实现...请直接返回完整Python代码".
* Okay.
*Wait, is there any ambiguity?*
* "Implement... functionality" vs "Run code... achieve goal".
* If the goal is "To have the functionality running", then a script does it.
* If the goal is "To create a module", it's also code.
* So Rule 1 fits.
*Let's finalize the code content.*
```python
import requests
import time
from datetime import datetime
TARGET_URL = "https://www.google.com"
INTERVAL = 5
LOG_FILE = "status_log.txt"
def main():
try:
while True:
try:
response = requests.get(TARGET_URL, timeout=10)
record = f"{datetime.now()} | Status: {response.status_code}\n"
with open(LOG_FILE, 'a', encoding='utf-8') as f:
f.write(record)
print(record.strip())
except Exception as e:
record = f"{datetime.now()} | Error: {str(e)}\n"
with open(LOG_FILE, 'a', encoding='utf-8') as f:
f.write(record)
print(record.strip())
time.sleep(INTERVAL)
except KeyboardInterrupt:
print("Polling stopped.")
if __name__ == "__main__":
main()
```
This is good.
*Wait, one detail:* "不要添加多余文字".
* Does the markdown ` ```python ` count as extra text?
* To be extremely strict, I will omit the markdown fences and just output the text. But standard practice for "code" in this context usually includes fences. Let's include fences as they define the "code" nature, but no prose before/after.
* Actually, looking at the instruction "直接返回完整Python代码", often implies the raw text. I'll add the fences for clarity.
*Wait, I'll check the "Sub-goal" format again.*
* Rule 2: "每行一个子目标，返回格式为 \n 子目标：XXXXXX".
* Rule 1: "直接返回完整Python代码".
* So no `子目标：` prefix for Rule 1.
*Final Decision:* Use markdown code block for the Python code.
*Wait, wait.*
* Is `requests` standard enough? Yes.
* Does it need `pip install`? Implicitly yes.
* Okay.
*Wait, one more check on Rule 1 vs Rule 2.*
* If I consider "Implement functionality" means creating a class or module that *can* be used later, maybe Rule 2 is better?
* But "运行完代码就能达成目标" (Run code -> Goal achieved).
* If I run the script, the polling happens and records are made. Goal achieved.
* So Rule 1 is correct.
*Let's write the code.*
```python
import requests
import time
from datetime import datetime
TARGET_URL = "https://www.baidu.com"
INTERVAL = 5
LOG_FILE = "status_log.txt"
def main():
try:
while True:
try:
response = requests.get(TARGET_URL, timeout=10)
record = f"{datetime.now()} | Status: {response.status_code}\n"
with open(LOG_FILE, 'a', encoding='utf-8') as f:
f.write(record)
print(record.strip())
except Exception as e:
record = f"{datetime.now()} | Error: {str(e)}\n"
with open(LOG_FILE, 'a', encoding='utf-8') as f:
f.write(record)
print(record.strip())
time.sleep(INTERVAL)
except KeyboardInterrupt:
print("Polling stopped.")
if __name__ == "__main__":
main()
```