http header
Edit
Increasing Application Performance with HTTP Cache Headers Edit
http message 组成 Edit
- start line (起始行)
- header (首部)
- body (主体)
request message format Edit
<method> <request-URL> <version> <headers> <entity-body>
GET /test/hi-there.txt HTTP/1.1 Accept: */* Host: www.joes-hardware.com
response message format Edit
<version> <status> <reason-phrase> <headers> <entity-body>
HTTP/1.0 200 OK Content-type: text/plain Content-length: 19 Hi! I'm message!
HTTP MethodEdit
| 方法 | 描述 | 是否包含主体 |
|---|---|---|
| GET | 从服务器获取文档 | NO |
| HEAD | 只从服务器获取文档首部 | NO |
| POST | 向服务器发送需要处理的数据 | YES |
| PUT | 将请求的主体部分存在服务器上 | YES |
| TRACE | 对可能经过代理服务器传送到服务器上的报文进行追踪 | NO |
| OPTIONS | 决定可以在服务器上执行哪些方法 | NO |
| DELETE | 删除服务器上的文档 | NO |
HTTP response code Edit
- 状态码分类
| 整体范围 | 已定义范围 | 分类 |
|---|---|---|
| 100 ~ 199 | 100 ~ 101 | 信息提示 |
| 200 ~ 299 | 200 ~ 206 | 成功 |
| 300 ~ 399 | 300 ~ 305 | 重定向 |
| 400 ~ 499 | 400 ~ 415 | 客户端错误 |
| 500 ~ 599 | 500 ~ 505 | 服务器端错误 |
- https://httpstatuses.com/
- https://zh.wikipedia.org/wiki/HTTP%E7%8A%B6%E6%80%81%E7%A0%81
- https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
two Content-Type header for form submission Edit
Content-Type: application/x-www-form-urlencoded # default for html forms Content-Type: multipart/form-data # used when form contains files, non-ascii, binary data
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