I am creating a Login Form and Sign up Form using JFrames. The problem is every time when the user presses the Sign up button the user details should be serialized and added to the “users.ser” file. And if the user presses the Login button it has to deserialize the data from that file and check for granting access to
Tag: deserialization
How to parse TOML document with Java
In my Java app I get a TOML document from REST service response as String and I look how to parse it and convert to Java objects. Ideally I’d like to use some existing mapper library for deserialization, something like Jackson or Gson for JSON objects. Are there any options in Java ecosystem for that? Answer There are several libraries
Get object from .readEntity
I have a java service which calls an API and gets the following in return How can i use .readEntity (or something else) to get the object for a given field; say service2 Or just convert all objects inside status to a List<> of objects String output = response.readEntity(String.class); works, but i dont know how to parse it properly to
Spring Jackson deserialize object with reference to existing object by Id
I have three entity classes of the following: Shipments Entity: @Entity @Table(name = “SHIPMENT”) public class Shipment implements Serializable { @Id @GeneratedValue(strategy = …
Abstract class with Gson serialization/deserialization
I am expecting to get from a json a LinkedList. The pojos look like this: @Data @Builder public class Request { private String id; private List parameters; } @…
Serialization process constantly overwrites itself?
I’m fairly new to java and trying to do some serialization in my project. I have a bunch of objects called Student and I would like to serialize them. The code I’m using for this is as follows: try{ …
Can I apply a custom deserializer to within another custom deserializer for GSON
The below is a working code that helps to convert JSON in Object accordingly. If the String is nil, it will be treated as null. There’s 2 custom deserializer i.e. MyOwnStringDeserializer and MyOwnListDeserializer. I am not happy with MyOwnListDeserializer deserializer, as essentially what it is doing is in term of the String comparison to the rule defined in MyOwnStringDeserializer. But
Array de-serialization in a Java GUI problems
now I need some help with Serializing my arraylist. Now I have managed to get the serializing aspect working (I think at least), now my problem lays with de-serializing the object. I am making a small address book program. I have a comboBox that stores the addresses with three textboxes above where the user enters: name, address, and phone number.
How to handle a NumberFormatException with Gson in deserialization a JSON response
I’m reading a JSON response with Gson, which returns somtimes a NumberFormatException because an expected int value is set to an empty string. Now I’m wondering what’s the best way to handle this kind …
Can not find a (Map) Key deserializer for type [simple type, class …]
I have a domain object that has a Map: When I serialize the object, I get this: This Map’s key is a custom Object: So, I am not sure how to correct this exception I keep getting when I deserialize the object: How to correct this issue? I do not have access to the domain object to modify. Answer By