JSON parsing exception org.json.JSONException: No value

Question

I am getting following JSON string that I need to parse:

response => {
    "error":false,
    "uid":39,
    "user":{
        "name":"my username",
        "email":"[email protected]",
        "created_at":"2019-05-15 13:22:19",
        "updated_at":null,
        "imagen":null,
        "nombre":null,
        "apellidos":null,
        "nivel_usuario":null,
        "id_usuario":39,
        "unique_id":null,
        "verified":null,
        "cel_verificado":null,
        "tel":"123456789",
        "code_cel":null
    }
}

I need to get the values for the fields inside key user.

I am trying as follows, but not working:

String errorMsg = jObj.getString("error_msg");

Here I am getting an exception:

W/System.err: org.json.JSONException: No value for error_msg

and consequently, the following lines are not executed:

JSONObject jObj = new JSONObject(response);
JSONObject user = jObj.getJSONObject("user");
String email = user.getString("email");

Log.d("RESPUESTA", "RESPUESTA email" + email);

There is no field named "error_msg" in your response. Maybe "error"? And the type of this field is boolean, not string. — Julian
– Julian, Commented May 15, 2019 at 23:49

CommonsWare · Accepted Answer · 2019-05-15 23:43:00Z

4

That is because your JSON does not have a property named error_msg. It does have one named error, so perhaps that is what you are looking for (though it is a boolean, not a String, and it is at the top level, not inside the user object).

answered May 15, 2019 at 23:43

CommonsWare

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Comments

Quick learner · Accepted Answer · 2019-05-17 13:05:13Z

0

Use optString() it will not give you exception

Also make sure what type of field is error_msg

Like if its a String use this

String error_msg= address.optString("error_msg")

for boolean use this

 boolean error_msg= address.optBoolean("error_msg")

Code snippet

JSONObject jObj = new JSONObject(response);
JSONObject user = jObj.getJSONObject("user");
String email = user.getString("email");
String error_msg= address.optString("error_msg") //string type field use optBoolean for boolean
Log.d("RESPUESTA", "RESPUESTA email" + email);

More explanation here The difference between getString() and optString() in Json

answered May 17, 2019 at 13:05

Quick learner

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