Other JsonTree - Tool to help with JSON parsing (B4A / B4J)

JsonTree is a tool that helps developers to parse and understand JSON strings.

It shows the data structure in a TreeView and it also prints the code (B4J / B4A) required in order to extract the data from the string.

Note that variables in the generated code are based on the JSON fields. It may produce invalid identifiers. However it should be quite simple to take the generated code and use it in your app.

The compiled jar can be downloaded here: www.b4x.com/b4j/files/JsonTree.jar

An online version of this tool is available here: http://basic4ppc.com:51042/json/index.html

The source code is attached.

Updated project: https://www.b4x.com/android/forum/t...with-json-parsing-updated-as-23-4-2022.140068

 

[Jim Brown]

The online tool is very good for testing JSON. Great work Erel.

 

[eps]

How did I miss this the first time round?? Great work, really useful

 

[Ju Yang]

I have copied the "JsonTree.zip" to my windows 8 system, and released it from the IDE.
It run well on windows, then I copied the jar file under the object folder to my virtualbox MAC OS X 10 systerm, and run it, but error ocurred!
I can't run the jar file on the virtualbox mac os x sytem, the same problem happened to my own programme. My virtualbox MAC system uses the jre8u65 for macosx-x64

Why error happened?

Waiting for your reply and Thank you!

 

[Erel]

It works fine on a real Mac. I just tested it. Your virtual machine is probably broken.

 

[Mashiane]

Awesome!!!

 

[gudino jose luis]

Absolutely brilliant !!!!!
Thanx Erel!

 

[ming]

JsonTree is a tool that helps developers to parse and understand JSON strings.

It shows the data structure in a TreeView and it also prints the code (B4J / B4A) required in order to extract the data from the string.

Note that variables in the generated code are based on the JSON fields. It may produce invalid identifiers. However it should be quite simple to take the generated code and use it in your app.

The compiled jar can be downloaded here: www.b4x.com/b4j/files/JsonTree.jar

An online version of this tool is available here: http://basic4ppc.com:51042/json/index.html

The source code is attached.

It works fine:

This is the exact code you need to use in order to access the items.

This works great, but how do I save the Json tree from treeitem(TreeView) back to Json string form for changes made to Json tree? Any sample code around available?

 

[Erel]

How are you making changes to the tree?

There is no such feature in this example.

 

[ming]

Yes, has dynamically make change to the tree, want to save back as Json and pass back to server. Any hope for any one pointing a direction to a similar solution?

 

[Erel]

Creating a generic 'tree to json' converter does require some work. However if don't need lists for example then it should be quite simple to convert it back.

 

[ming]

Creating a generic 'tree to json' converter does require some work. However if don't need lists for example then it should be quite simple to convert it back.

Erel, thanks you for your prompt response. I will keep on knock my head against this rock until some smart one share their code or I made it.

 

[JakeBullet70]

Thanks @Erel Just found this gem from 7+ years ago You just saved me a few hours parsing octoprint JSON. A BIG thanks!

 

[Swissmade]

Thanks @Erel help me to get the Job faster.

 

[JakeBullet70]

Thanks @Erel help me to get the Job faster.

To me this should just be included in 'Tools' download. (a separate download with stand alone tools) There as a very good helper programs just burred in the forum and if your like me you cannot find anything no matter how hard you look. (BBCodeDesigner, FormsBuilder are some other good tools)

 

[Acuario]

Great tool but can it be updated so the Root isn't called Root as it clashes with the B4X pages Root and causes errors.