How would i parse this with Gson? [duplicate] - java

This question already has answers here:
How to parse JSON in Java
(36 answers)
Closed 2 years ago.
I am trying to make a discord bot that parses a json response, but I'm not entirely sure on how to do so.
This is an example response:
[{"beatmap_id":"146929","score":"1467874","maxcombo":"182","count50":"1","count100":"41","count300":"475","countmiss":"10","countkatu":"20","countgeki":"72","perfect":"0","enabled_mods":"0","user_id":"1009","date":"2020-02-29 11:15:49","rank":"A","pp":"38.767826"},{"beatmap_id":"245658","score":"1013358","maxcombo":"244","count50":"0","count100":"6","count300":"158","countmiss":"1","countkatu":"5","countgeki":"24","perfect":"0","enabled_mods":"0","user_id":"1009","date":"2020-02-29 11:13:05","rank":"A","pp":"49.74563"},{"beatmap_id":"245658","score":"34162","maxcombo":"42","count50":"0","count100":"1","count300":"27","countmiss":"1","countkatu":"0","countgeki":"4","perfect":"0","enabled_mods":"0","user_id":"1009","date":"2020-02-29 11:12:19","rank":"A","pp":"12.399677"},{"beatmap_id":"1128411","score":"4785282","maxcombo":"350","count50":"23","count100":"292","count300":"1117","countmiss":"51","countkatu":"93","countgeki":"132","perfect":"0","enabled_mods":"0","user_id":"1009","date":"2020-02-29 11:10:52","rank":"C","pp":"12.770388"},{"beatmap_id":"431147","score":"209504","maxcombo":"105","count50":"0","count100":"4","count300":"73","countmiss":"1","countkatu":"3","countgeki":"9","perfect":"0","enabled_mods":"0","user_id":"1009","date":"2020-02-29 11:04:05","rank":"A","pp":"22.695227"}]
How would I just get the first "beatmap_id" key and return the value of it with Gson?
I'm fairly new to coding and I need a push in the right direction, so could someone give me an example, or link me to the part of the documentation i need to learn this?
Any help is appreciated, thanks!


You should create DTO class for same followed by keys which are in the response.
You can view this blog for understanding gson.

Related

parsing a json file without knowing it structure using only java [duplicate]

This question already has answers here:
How to parse JSON in Java
(36 answers)
Closed 9 months ago.
so I have, I doing a program that receives a string json with an unknown structure (since it's a variable each time I receive a new one) and it needs to parse the string to extract each key and its type (from its value).
I need to do this using only java (no spring) because I've seen solution using Jackson tree, but with the software I'm using it impossible
If someone could help I would appreciate it.

You can use JSONObject from org.json library .

How create Java Array from Json Array [duplicate]

This question already has answers here:
How to parse JSON in Java
(36 answers)
Closed 7 years ago.
Hi Have This Json data in database table
["Travellers \u0026 Trekkers","Fitness Freaks","Parenting Group","Sports Lovers","Work: Startups","Art, Music \u0026 Literature","Volunteer Activities","Movie, Food \u0026 Events"]
How i use it in java. or how make a java array.

Instead of reinventing the wheel, you should look to integrating a pre-written, open-source library that parses the JSON for you. I would recommend json-simple from Google, or org.json library.

how to parse unusual json [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Parse JSON object with string and value only
How to parse JSON in JavaScript
How can I parse such json?
"prices":{"2":"800.0", "8":"580.0", "5":"657.0"}
Usually I do it in this way:
object.getInt("id")
But now I don't know previously what int I get. In example there are 2,8,5, but they can be another..
Thanks in advance.
Here is answer

You need a JSON library for Java.

json to java object convertion [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Convert a JSON string to object in Java?
Below is my json structure .I want to convert it to java object .Can any help me to parse this jason object
{"response":{"#id":"","":{"":[{"":"","":"","":"","":"","":"","":"","":"","":"","":"","":""},{},{},{},.....{}]}}}
Thanks

That is not well-formed JSON. For a start, you have multiple attributes with the same name. There's no Java JSON library that could represent that.

is this json file? and if yes, how can I read it back to java? [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
A better Java JSON library?
Hi,
I have a json file like this:
workloads = [
{
total: 5,
attributes:
{
taskA:1,
taskB:2
}
}
]
Thanks in advance

This is not a valid JSon object.
to validate your json you can use for example jsonlint.
Have a look at the Json grammar here
To know which library you can use to read json from java look here A better Java JSON library?

There are plenty of links on the JSON site: http://json.org/java/

Categories

Resources