Jmeter posting json application - json

Question

Hello I have got problem I have configured my Jmeter to test performance between play framework version 2.2 and 2.3 to check the speed of controllers but when I post something (here im creating account) in play console I see that account is creating but its not saving in my database, when I have done this same from another laptop by typing my IP Adress it saved it to database and worked good. I dont know where could be the problem cause configuration is the same.
In Jmaker in thread I have made
HTTP Head Manager and i added here
Name: Content-Type Value: application/json
I have made too HTTP Request
Server Adress: localhost Port:9000 Method: Post Content encoding: UTF-8
Path: api/accounts Implementation: HTTPClient 4 Portocol [http]: http
And in parameters I added
name:(nothing),
Value:{"username":"AccountTest1","password":"test6ccou49","email":"AccountTest1#dev.null"}
and I have turned only Include Equals
I added to Constant Timer and jp#gc Response Times over time from plugin which is making chart
I dont know why when I press Start: chart is building, in play console I see account creating but this is not saving to database.
I will be very thankful for every help.

Answer 1

Create a CSV file like below sample data:
AccountTest1,test6ccou49,AccountTest1#dev.null
AccountTest2,test6ccou50,AccountTest2#dev.null
AccountTest3,test6ccou51,AccountTest3#dev.null
..... so on
Add->Config Element->CSV Data Set Config
keep settings as mentioned below:
Filename: "Give complete file path with file name e.g. c:\folder1\folder2\file.csv"
File Encoding: "Leave Blank"
Variable Names: "user_name,pass_wd,e_mail"
Delimiter: ","
Allow Quoted Data: "false"
Recycle on EOF: "True"
Stop Thread on EOF: "false"
Sharing mode: "All threads"
Now Post body should look like
{"username":"${user_name}","password":"${pass_wd}","email":"${e_mail}"}
Hope this will help.

Answer 2

Try to use "Post Body" in the HTTP Sampler to post below values
{"username":"AccountTest1","password":"test6ccou49","email":"AccountTest1#dev.null"}
Hope this will help.

Answer 3

I have repaired it already, the problem was in Http Header :), I have got question, now I'm creating accounts by requesting
{"username":"AccountTest1","password":"test6ccou49","email":"AccountTest1#dev.null"}
But this create one account, I was testing some solutions on the Internet but them don't work also is here any way to make a lot of accounts in one time to test performance?
My create account function gets json object {xxx:yyy,bbb:ccc}