Deserializing nested JSON to Java object

[PA]

Hello,

This is the JSON file I want to convert into Java object

{
  "personal": {
    "name": "John Doe",
    "age": "28",
    "gender": "male",
  }
  "address": {
    "street": "123 main st",
    "state": "md",
    "zipcode": "21228"
  }
}

The java object im creating is

public class customerInfo{
   private String infoType;
   private Map<String, String>;
}

So basically what I want is a List<customerInfo> where

element 1:

infoType = personal 

Map = <name, John Doe>, and so on

element 2:

infoType = address

Map = <street, 123 main st>, and so on

This is what I've been trying so far but couldn't get it to work

customerInfo customer = mapper.readValue(new File("jsonTestFile.json"), customerInfo.class);

I only put the first portion of the test file to test that line of code.

So the jsonTestFile.json content is

{
  "personal": {
    "name": "John Doe",
    "age": "28",
    "gender": "male",
  }
}

so how do I deserializing the json object in both scenarios?

Thank you very much

[Ben Vesco]

That's a complex example. You're trying to take the property name of a parent object and make it a property value of a child object. This is possible with Jackson but is a more advanced example than I can provide. Using your object:

public class customerInfo{
   private String infoType;


   private Map<String, String> data;
}

You would more naturally support jsonTestFile.json looking like:

{
  "infoType": "personal",

  "data": {

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[Tatu Saloranta]

I agree in that it is often much easier to modify JSON, or Java object definitions (or sometimes both), instead of trying to apply complicated conversion logic. Databinding is indeed designed to bind compatible structures into each other; and not as a general-purpose transformation engine.

-+ Tatu +-