Go language get post mode JSON

This is a creation in Article, where the information may have evolved or changed.

Learning go language, read a document for a period of time, want to write a server, when the interface data to find the data, the format of "Form-data" data is the simplest,</span>

Incoming post JSON data: {"username": "", "Password": "123456"}

<span style= "font-family:arial, Helvetica, Sans-serif;" >req. Postform</span>

Req. Header.get ("Content-type") req. Hostreq.Formreq.FormValue ("username") req. Formvalue ("password")

When you get the "Application/json", you need to deal with it (get only string below):

Package Utilsimport ("bytes" "Io/ioutil" "net/http")/** gets the body's data (JSON) converted to string* bytes to String*/func getdatastring ( Req *http. Request) String {result, err: = Ioutil. ReadAll (req. Body) If err! = Nil {return "{\" code\ ": 1,\" msg\ ": \" failed\ "}"} else {return bytes. Newbuffer (Result). String ()}}

When you get the "Application/json", you need to deal with it (just get the JSON to map):

Packages that need to be introduced, "Io/ioutil", "Net/http", "Encoding/json"

var user map[string]interface{}body, _: = Ioutil. ReadAll (req. Body) JSON. Unmarshal (body, &user) fmt. Println ("Get username in JSON:", user["username"]) fmt. PRINTLN ("Get Password in JSON:", user["password"]. ( String)//Turn string to determine length through Len (password)!=0

Comparison of data obtained:

Byte[]

[123 34 117 115 101 114 110 97 109 101 34 58 34 115 121 115 116 101 109 34 44 34 112 97 115 115 119 111 114 100 34 58 34 4 9 50 51 52 53 54 34 125]

String

{"username": "System", "Password": "123456"}

Map

Map[username:system password:123456]