http get 方式参数的长度限制<转>
http get 方式参数的长度限制
这个问题一直以来似乎是被N多人误解,其实Http Get方法提交的数据大小长度并没有限制,而是IE浏览器本身对地址栏URL长度有最大长度限制:2048个字符。
当您从 WinInet 应用程序到 Web 服务器发送一个长的查询字符串时,查询字符串可能会被截断。
出现此问题是由于中 WinInet,定义 Wininet.h 文件中,如下所示的 URL 的长度限制:
#define INTERNET_MAX_PATH_LENGTH 2048
#define INTERNET_MAX_SCHEME_LENGTH 32 // longest protocol name length
#define INTERNET_MAX_URL_LENGTH (INTERNET_MAX_SCHEME_LENGTH + sizeof("://") + INTERNET_MAX_PATH_LENGTH)
此行为是设计使然。
注意: 因为 Internet Explorer 和 Internet 传输的控制也使用 WinInet,可能会出现相同的问题。
若要解决此问题,使用 HTTP POST 方法。
http://support.microsoft.com/kb/208427/zh-cn
Microsoft Internet Explorer has a maximum uniform resource locator (URL) length of 2,083 characters. Internet Explorer also has a maximum path length of 2,048 characters. This limit applies to both POST request and GET request URLs. ‘>以下附上微软官方的一段说明:
Microsoft Internet Explorer has a maximum uniform resource locator (URL) length of 2,083 characters. Internet Explorer also has a maximum path length of 2,048 characters. This limit applies to both POST request and GET request URLs. ‘>Microsoft Internet Explorer has a maximum uniform resource locator (URL) length of 2,083 characters. Internet Explorer also has a maximum path length of 2,048 characters. This limit applies to both POST request and GET request URLs.
If you are using the GET method, you are limited to a maximum of 2,048 characters, minus the number of characters in the actual path.
However, the POST method is not limited by the size of the URL for submitting name/value pairs. These pairs are transferred in the header and not in the URL. ‘>However, the POST method is not limited by the size of the URL for submitting name/value pairs. These pairs are transferred in the header and not in the URL.
RFC 2616, “Hypertext Transfer Protocol — HTTP/1.1,” does not specify any requirement for URL length.
注:本文转载自:http://www.linbuluo.com/?p=5
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