HTTP 101 Switching Protocols vs 302 Found
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 302 (Found) is a 3xx Redirection response. 101 indicates that the server understands the Upgrade header field request and indicates which protocol it is switching to. In contrast, 302 means that the resource temporarily resides at a different URL. The client should continue using the original URL for future requests.
描述
The server understands the Upgrade header field request and indicates which protocol it is switching to.
何时出现
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
如何修复
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
描述
The resource temporarily resides at a different URL. The client should continue using the original URL for future requests.
何时出现
During A/B testing, temporary maintenance pages, or geo-based redirects.
如何修复
Follow the Location header. Note: browsers may change POST to GET on redirect.
主要区别
101 is a 1xx Informational response, while 302 is a 3xx Redirection response.
HTTP 101: The server understands the Upgrade header field request and indicates which protocol it is switching to.
HTTP 302: The resource temporarily resides at a different URL. The client should continue using the original URL for future requests.
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 302 when during A/B testing, temporary maintenance pages, or geo-based redirects.
何时使用哪个
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 302 (Found): Follow the Location header. Note: browsers may change POST to GET on redirect.