I have the following code on my project: When I Log htmlcda parameter, I get the html string correctly. However, in response results JsonObject I get {“empty”:false}. Any help please? Answer Spring boot uses jackson as default serializer and you’re trying to return JSONObject itself. Jackson…
Tag: json
Is toString() mandatory while accessing the individual element of a JSON object in Java
I am quite new to Java and trying to understand the effect of using toString() while accessing the individual string elements of JSON object in Java. Below are the steps followed: Parse the JSON data. Let’s assume only string elements are there in parsed JSON data. Try to access the individual elements.…
Rest Assured – JSON Schema Validation – java.lang.NoSuchMethodError: com.github.fge.jsonschema.core.processing.CachingProcessor
I have generated schema for the the JSON response and have stored it in project directory . No error shown in eclipse. But while running am getting below error. As it states method its looking for is not present. But I have imported the Jar which it shows as missing. Not sure if I am using incorrect version o…
Getting NullPointerException while trying to deserialize json
I am getting NullPointerException while trying to deserialize json. I am trying to deserialize only select JSON objects from https://api.covid19india.org/data.json I have written code Statewise.java calling method Please help Answer The JSON returned contains “statewise” property. So to get it des…
Protobuf repeated fields to json array mapping
I’m using Java, Spring-boot, Hibernate stack and protocol buffers as DTO for communication among micro-services. At reverse proxy, I convert the protobuf object to json using protobuf’s java support. I have the following structure Converting the MultipleItems DTO to json gives me the following res…
Converting a Java Timestamp into a String?
I have the following field in my Java Entity: It is currently a timestamp when we send it to the front end via json. How can I convert this into a string to send to front end? Answer You can use @JsonSerialize annotation. Serializer:
Using “put” method of JSONObject in for loop (java)
I’m trying to use JSONObject’s put method in for loop. But I’m not getting Expected output. Expected output: OutPut I’m getting: here is my code: Answer Have you tried moving the construction of infoObj inside the loop. By having it outside, you’re maintaining state across loop i…
Copy all values List to Jackson JsonGenerator Array directly instead of looping over it
I am creating a JSON file using the Jackson JsonGenerator for which I need to add the elements from List<String>. This List consists of the JSON Fragments which needs to be added to my final JSON file. As of now, I am looping over the List<String> and adding them to my Jackson JsonGenerator writeR…
Need Help converting JavaObject To Json in Generic Pattern
I wrote a Generic method which works fine converting any Json object to Generic Object. But has an issue while converting the Generic Object type to JSON format with the below code format. Would someone help me or guide me with related code.. I am not sure how to retain an Object from Generic class type as th…
Spring Integration: how to configure ObjectToJsonTransformer to add json__TypeId__ with class name instead of canonical name
I am trying to serialize a message (then deserialize it) and I do not want any of the headers json__TypeId__ or json_resolvableType to contain the canonical name of the class. This is because I am sending the message over the network and I consider including the canonical name in the header a security concern…