Convert json String to array of Objects

Question

I have json array as string

[
        {
        "id":"1",   
            "lat": "23.053",
            "long": "72.629",
            "location": "ABC",
            "address": "DEF",
            "city": "Ahmedabad",
            "state": "Gujrat",
            "phonenumber": "1234567"
        },
        {
        "id":"2",   
            "lat": "23.053",
            "long": "72.629",
            "location": "ABC",
            "address": "DEF",
            "city": "Ahmedabad",
            "state": "Gujrat",
            "phonenumber": "1234567"
        },
        {
            "id":"3",   
        "lat": "23.053",
            "long": "72.629",
            "location": "ABC",
            "address": "DEF",
            "city": "Ahmedabad",
            "state": "Gujrat",
            "phonenumber": "1234567"
        },
        {
            "id":"4",   
        "lat": "23.053",
            "long": "72.629",
            "location": "ABC",
            "address": "DEF",
            "city": "Ahmedabad",
            "state": "Gujrat",
            "phonenumber": "1234567"
        },
        {
            "id":"5",   
        "lat": "23.053",
            "long": "72.629",
            "location": "ABC",
            "address": "DEF",
            "city": "Ahmedabad",
            "state": "Gujrat",
            "phonenumber": "1234567"
        }
]

I want to convert this string to each json object. I have a class address. How would i convert this json string to object

I tried

Address address = gson.fromJson(addressJson, Address.class);

com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 2
    com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:176)
    com.google.gson.Gson.fromJson(Gson.java:803)
    com.google.gson.Gson.fromJson(Gson.java:768)
    com.google.gson.Gson.fromJson(Gson.java:717)
    com.google.gson.Gson.fromJson(Gson.java:689)

possible duplicate of stackoverflow.com/questions/11503688/… — muthu
– muthu, Commented Aug 27, 2013 at 6:43

Narendra Pathai · Accepted Answer · 2013-08-27 06:42:14Z

23

Try this

Address[] address = gson.fromJson(addressJson, Address[].class);

answered Aug 27, 2013 at 6:42

Narendra Pathai

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3 Comments

Brian Over a year ago

+1. Also, if a collection is preferred like List, you can wrap the fromJson call in Arrays.asList

jackyesind Over a year ago

It is working but for the same thing i have one field for date with value Tue Aug 27 06:07:32 UTC 2013. It says error on

java.text.ParseException: Unparseable date: "Tue Aug 27 11:37:32 IST 2013" 	java.text.DateFormat.parse(DateFormat.java:337)

Narendra Pathai Over a year ago

See this link for that stackoverflow.com/questions/6873020/gson-date-format You will have to change the default date format for GSON

score 1 · Accepted Answer · 2022-08-09 12:23:13Z

1

Using Jackson's ObjectMapper class,you can read values and map them to an object, or an array of objects.

final ObjectMapper objectMapper = new ObjectMapper();
Address [] mdls = objectMapper.readValue(addressJson, Address [].class);

For List<Address> use:

List<Address> mdls = objectMapper.readValue(addressJson, new TypeReference<List<Address>>() {});

edited Aug 9, 2022 at 12:23

answered Aug 9, 2022 at 12:14

user3408531

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