Level 4

Solved

convert stringified array of objects to json object

10 replies
9623 views
Translate All

hi this is more of a java based question but I could use some help here-

i have a stringified (json.stringify) javascript array of strings ["abc","efg","ijk"]

i want to convert it to a json object

JsonObject jsonObject = new Gson().fromJson(arrayOfStrings, JsonObject.class);
com.google.gson.JsonSyntaxException: Expected a com.google.gson.JsonObject but was com.google.gson.JsonArray

i have tried using JsonParser from gson, javax.json.stream but nothing seems to work.

This post is no longer active and is closed to new replies. Need help? Start a new post to ask your question.

Rohan_GargAccepted solution

Community Advisor

If it is only an array of string you want, you can use the below -

List<String> currentGroupIdsList = new ArrayList<String>(Arrays.asList(stringifiedArray.split(",")));

Here stringifiedArray is received from the frontend and converted into simple <List> of strings.

Hope this helps!

Rohan Garg

ShubhanshuSi2

Community Advisor

Try .fromJson(arrayOfStrings, JsonArray,class) instead of converting it into JsonObject.class

Translate

Shubhanshu Singh | Technical Architect | AEM Assets & Sites

A

aem_noobAuthor

Level 4

i tried into jsonarray too but that didn't work

Translate

Nilesh_Mali

Level 3

To fix this, you should use the appropriate data structure for deserializing the JSON array. In this case, you should use JsonArray instead of JsonObject since the input is an array of strings.

String arrayOfStrings = "[\"abc\",\"efg\",\"ijk\"]";

// Parse the JSON array into a JsonArray
JsonArray jsonArray = new Gson().fromJson(arrayOfStrings, JsonArray.class);

// Now you can work with the JsonArray as needed
sout(jsonArray); // Output: ["abc","efg","ijk"]

JsonArray object is ready here to access the individual elements within the array if needed

Translate

A

aem_noobAuthor

Level 4

I have tried json array too but that throws an error too.

Translate

nitesh_kumar-1

Adobe Employee

Hi @aem_noob ,

I don't know what a full string looks like, but this seems to be JsonArray, try using that class instead.

JsonArray jsonArray =  new Gson().toJsonTree(arrayOfStrings).getAsJsonArray();

You could then iterate and read the JsonObject in this array, or form the proper JsonString which would qualify as JsonObject.

Also, check https://www.tutorialspoint.com/how-to-convert-java-array-or-arraylist-to-jsonarray-using-gson-in-java

Hope this helps.

Regards,

Nitesh

Translate

A

aem_noobAuthor

Level 4

i tried jsonarray initially but that also threw an exception. the response from front end is a json of array objects which is then filtered to array of strings. the array of strings is not getting cast to jsonarray.

Translate

ksh_ingole7

Community Advisor

Hi @aem_noob

Try this ->

const array = ["abc", "efg", "ijk"];

// Convert array to JSON object const jsonObject = JSON.stringify(array);

console.log(jsonObject);

Translate

A

aem_noobAuthor

Level 4

The array of strings is not getting cast to jsonObject as I have tried it

Translate

Rohan_Garg

Accepted solution

Community Advisor

If it is only an array of string you want, you can use the below -

List<String> currentGroupIdsList = new ArrayList<String>(Arrays.asList(stringifiedArray.split(",")));

Here stringifiedArray is received from the frontend and converted into simple <List> of strings.

Hope this helps!

Translate

Rohan Garg

A

aem_noobAuthor

Level 4

this works but isn't it possible to do it via jsonArray or jsonObject?

Translate

Sign up

Login with SSO

Login to the community

Login with SSO