HTTP protocol composition (Request status code)

HTTP request by: Request line; message header; Request Body composition

Request Line

Request Url:http://172.32.4.33:8080/operation/v2/autoserver/queryautoserver.htm//requesting address

Request Method:post//Requesting method

Status code:200 OK//Request State Code

Remote address:172.32.4.33:8080//remotely requested address

Referrer Policy:no-referrer-when-downgrade//indicates which jump page the request is from and displays the jump page address.

Server response Header

Content-type:application/json;charset=utf-8

date:wed, APR 2018 08:17:38 GMT

server:apache-coyote/1.1

Transfer-encoding:chunked

Request Header

Accept:application/json, Text/plain, */*//request header want to receive JSON plain data

Accept-encoding:gzip, deflate

accept-language:zh-cn,zh;q=0.9

Connection:keep-alive

Content-length:29

Content-type:application/json; Charset=utf-8

host:172.32.4.33:8080

origin:file://

tokenid:ae039c9cb7f948a89ac1b3dbd2135440

user-agent:mozilla/5.0 (Windows NT 10.0; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/65.0.3325.181 safari/537.36

Request Body

{beginpage:1, pagesize:10}

Beginpage:1

Pagesize:10

Where the request status code is very critical, the common request status code is:

1.200 OK indicates successful request

2.400 Bad Request indicates a syntax error for client requests and the server cannot parse

3.401 Unauthorized indicates unauthorized

4.403 Forbidden Server accepts a request, but refuses to service it

5.404 not Found request URL error, request address not found

6.500 Internal Server error server has unpredictable errors

7.503 Server Unavailable Server is currently unable to process client requests and may return to normal after a certain period of time

HTTP protocol composition (Request status code)