39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
"""第5-2课标准示例：解析URL并构造HTTP请求信息。"""
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from urllib.parse import parse_qs, urlencode, urlsplit
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def parse_url(url: str) -> None:
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"""拆分URL，并把查询字符串转换成便于使用的字典。"""
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parts = urlsplit(url)
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query_parameters = parse_qs(parts.query)
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print(f"协议：{parts.scheme}")
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print(f"主机：{parts.hostname}")
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print(f"端口：{parts.port}")
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print(f"路径：{parts.path}")
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print(f"查询参数：{query_parameters}")
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def build_request_target(path: str, parameters: dict) -> str:
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"""把路径和查询参数编码成请求目标。"""
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return f"{path}?{urlencode(parameters)}"
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def main() -> None:
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"""展示URL各部分以及一份简化的GET请求。"""
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url = "https://api.example.com:443/books?keyword=Python&page=2"
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parse_url(url)
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request_target = build_request_target(
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"/books",
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{"keyword": "Python Web", "page": 1},
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)
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print(f"请求行：GET {request_target} HTTP/1.1")
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print("请求头：Accept: application/json")
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if __name__ == "__main__":
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main()
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