URL 参数和查询字符串有什么区别? [英] What is the difference between URL parameters and query strings?
问题描述
在 URL 中，我没有看到参数和查询字符串之间有太大区别.那么有什么区别，什么时候应该使用一个而不是另一个?
I don't see much of a difference between the parameters and the query strings, in the URL. So what is the difference and when should one be used over the other?
推荐答案
查询组件 由 URI 中的第一个 ? 表示.查询字符串"可能是同义词(URI 标准中未使用该术语).
The query component is indicated by the first ? in a URI. "Query string" might be a synonym (this term is not used in the URI standard).
带有查询组件的 HTTP URI 的一些示例:
Some examples for HTTP URIs with query components:
http://example.com/foo?bar
http://example.com/foo/foo/foo?bar/bar/bar
http://example.com/?bar
http://example.com/?@bar._=???/1:
http://example.com/?bar1=a&bar2=b
查询组件的格式"取决于 URI 作者.一个常见的约定(但仅是一个约定，就 URI 标准而言¹)是使用键值对的查询组件，又名.参数，就像上面最后一个例子:bar1=a&bar2=b.
The "format" of the query component is up to the URI authors. A common convention (but nothing more than a convention, as far as the URI standard is concerned¹) is to use the query component for key-value pairs, aka. parameters, like in the last example above: bar1=a&bar2=b.
此类参数也可能出现在其他 URI 组件中，即路径²和片段.就 URI 标准而言，使用哪个组件和哪种格式取决于您.
Such parameters could also appear in the other URI components, i.e., the path² and the fragment. As far as the URI standard is concerned, it’s up to you which component and which format to use.
在路径、查询和片段中包含参数的示例 URI:
Example URI with parameters in the path, the query, and the fragment:
http://example.com/foo;key1=value1?key2=value2#key3=value3
<小时>
¹ URI 标准说关于查询组件:
[…] 查询组件通常以键=值"对的形式携带识别信息[…]
[…] query components are often used to carry identifying information in the form of "key=value" pairs […]
² URI 标准说关于路径组件:
[…] 分号 (";") 和等号 ("=") 保留字符通常用于分隔适用于该段的参数和参数值.逗号 (",") 保留字符通常用于类似目的.
[…] the semicolon (";") and equals ("=") reserved characters are often used to delimit parameters and parameter values applicable to that segment. The comma (",") reserved character is often used for similar purposes.
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