Java Read dynamic JSON

Question

I'm doing a webservice in java and in the post method i need to receive a json from the front-end

And my doubt is that i can read dynamically json

Lets pretend that sometimes i receive this

'{ "bit1":"000", "bit2":"1111", "bit50":"010101" }';

and in the next day i receive something like that:

'{ "bit3":"101", "bit7":"00010", "bit30":"1010111", "bit40":"1010001" }';

I dont know what the webservice will receive, the length, the name of the params, i only know that is a json well formed. There are any way to read it?

Thanks for your time

You'd start by picking a library that can parse the JSON … and then the specifics of how you find out what properties are in it would probably depend on exactly what type of object that library presented the parsed data as. — Quentin
– Quentin, Commented May 8, 2017 at 9:33

Basil Battikhi · Accepted Answer · 2017-05-08 09:42:11Z

1

@Post
@Consume("application/json")
@Produce("application/json")
public String recieveMyJson(JSONObject myJSON)
{
// here myJSON will recieve any valid json structure regardless to the length
String []string=myJSON.toString().split(","); // should do what do you need
for(String myKey:string)
{
System.out.println(myKey)
}
}

answered May 8, 2017 at 9:42

Basil Battikhi

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1 Comment

Joseph Over a year ago

hum ok, different approach than i initially thought , but it works just fine. Thank you

S Jayesh · Accepted Answer · 2017-05-08 09:41:20Z

1

Use json-1.5.jar (or any other version of it), it provides options to read all the key_list as string array,

String[] keys = JSONObject.getNames(YOURjsonOBJECT);

after reading keys into String array, iterate over keys to read their values from YOURjsonObject one at a time ( or you may use string array as parallelStream for parallel and faster reading).

answered May 8, 2017 at 9:41

S Jayesh

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