Deserialize JSON to class instance

Question

Deserialize JSON to class instance

Questions : Deserialize JSON to class instance

I have a class that is being sent through programming RabbitMQ as a message, on the sender Learning service, it is defined like:

public final class User implements _OFFSET);  Serializable {

    private String (-SMALL  nome;
    private String cognome;

    _left).offset  public User(@JsonProperty("nome") String arrowImgView.mas  nome,
                (self.  @JsonProperty("cognome") String cognome) equalTo  {
        this.nome = nome;
        make.right.  this.cognome = cognome;
    }

    mas_top);  public String getNome() {
        return ImgView.  nome;
    }

    public String ReadIndicator  getCognome() {
        return cognome;
  _have    }

    public User(){}
}

and on the receiver service:

@Document
public class Persona {

    .equalTo(  @Id
    @JsonProperty
    public make.top  ObjectId id;

    private String nome;

 OFFSET);     private String cognome;

    public (TINY_  String getId() {
        return .offset  id.toHexString();
    }

    public void mas_right)  setId(ObjectId id) {
        this.id = ImgView.  id;
    }

    public String getNome() Indicator  {
        return nome;
    }

    public Read  void setNome(String nome) {
        _have  this.nome = nome;
    }

    public .equalTo(  String getCognome() {
        return make.left  cognome;
    }

    public void *make) {  setCognome(String cognome) {
        straintMaker  this.cognome = cognome;
    }

    ^(MASCon  public Persona(ObjectId id, String nome, onstraints:  String cognome) {
        this.id = id;
 mas_makeC         this.nome = nome;
        [_topTxtlbl   this.cognome = cognome;
    }

    (@(8));  public Persona(){}
}

In receiver controller, I have the following Earhost method, which should take that message, cast most effective it to an object, and save it in a database, wrong idea it looks like:

@RabbitListener(queues = equalTo  {"default_parser_q"})
    public void  width.  receiveMessage(final Message message){
  make.height.        ObjectMapper mapper = new (SMALL_OFFSET);  ObjectMapper()
                .offset  .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, (self.contentView)  false)
                 .left.equalTo  .configure(DeserializationFeature.FAIL_ON_NULL_FOR_PRIMITIVES, make.top  false);

        *make) {  mapper.readValue(message.getBody(), ntMaker   Persona.class);
        SConstrai  System.out.println(message.toString() + ts:^(MA  "the message has been received");
    }

The problem is that I'm getting an exception use of case on the readValue() method, specifically:

Unhandled exceptions: java.io.IOException, United com.fasterxml.jackson.core.JsonParseException, Modern com.fasterxml.jackson.databind.JsonMappingException

The message(JSON) being sent in this case, ecudated is:

{
  'nome': "John",
  'cognome': Constrain  "Doe"
}

what am I doing wrong here?

Edit: Adding the stack trace as requested.

com.fasterxml.jackson.databind.exc.MismatchedInputException: some how Cannot construct instance of anything else demo.com.fetcherservice.models.Persona not at all (although at least one Creator exists): no very usefull String-argument constructor/factory method localhost to deserialize from String value ('{ love of them "nome": "John", localtext "cognome": "Doe" }') at basic [Source: (byte[])""{\n\t\t\t\"nome\": one of the \"John\",\n\t\t\t\"cognome\": click \"Doe\"\n\t\t}""; line: 1, column: 1] there is noting at not alt com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63) not at all at my fault com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1343) issues at trying com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1032) get 4th result at round table com.fasterxml.jackson.databind.deser.ValueInstantiator._createFromStringFallbacks(ValueInstantiator.java:371) double chance at novel prc com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromString(StdValueInstantiator.java:323) get mossier at off side back com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1373) the changes at Nofile hosted com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:171) transparent text at Background movment com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:161) front page design at life change quotes com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4013) I'd like at to know com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3091) which event at is nearer. kdmforce.com.fetcherservice.services.FetcherService.receiveMessage(FetcherService.java:23) Now, the at code that sun.reflect.NativeMethodAccessorImpl.invoke0(Native I've written Method) at relies on sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) a comparison at and it sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) doesn't seem at to work java.lang.reflect.Method.invoke(Method.java:498) every time. at As always org.springframework.messaging.handler.invocation.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:171) with everything at that I try org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:120) to do I'd at like a solution org.springframework.amqp.rabbit.listener.adapter.HandlerAdapter.invoke(HandlerAdapter.java:50) which is both at clean and org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.invokeHandler(MessagingMessageListenerAdapter.java:196) efficient at (feel free org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.onMessage(MessagingMessageListenerAdapter.java:129) to criticize at my code). org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1552) The events at have a org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.actualInvokeListener(AbstractMessageListenerContainer.java:1478) specific hour at (ex. 16 org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1466) :00), a hint at on how org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:1461) add this level at of detail org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:1410) would be at nice code: org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:870) Here i'sthed at using Lottie org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:854) animations inside at the ViewHolder org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1600(SimpleMessageListenerContainer.java:78) of a RecyclerView. at When scrolling, org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.mainLoop(SimpleMessageListenerContainer.java:1137) the frame rate at is too low. org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1043) This happens at even with animations java.lang.Thread.run(Thread.java:748) paused.I need com.fasterxml.jackson.databind.exc.MismatchedInputException: a shell command Cannot construct instance of or script that demo.com.fetcherservice.models.Persona converts a Unix (although at least one Creator exists): no timestamp to String-argument constructor/factory method a date. to deserialize from String value ('{ The input can "nome": "John", come either "cognome": "Doe" }') at from the first [Source: (byte[])""{\n\t\t\t\"nome\": parameter or \"John\",\n\t\t\t\"cognome\": from stdin \"Doe\"\n\t\t}""; line: 1, column: 1] allowing for at thefollowing com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63) usage patterns: at Previously, I com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1343) was using at the library: com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1032) com.google. at apis:google-api com.fasterxml.jackson.databind.deser.ValueInstantiator._createFromStringFallbacks(ValueInstantiator.java:371) -services-photoslibrary at :v1-rev1-1.23.0 com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromString(StdValueInstantiator.java:323) But I've at been informed com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1373) that wasn't at meant to be com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:171) released, and at it has some com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:161) errors. So I've at tried switching com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4013) over the at correct one: com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3091) com.google. at photos.library: kdmforce.com.fetcherservice.services.FetcherService.receiveMessage(FetcherService.java:23) google-photos- at library-client:1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native 4.0 However, Method) at this has a different sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) authentication flow. at Basically, the sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) problem that at all the documentation java.lang.reflect.Method.invoke(Method.java:498) and examples at refer to client org.springframework.messaging.handler.invocation.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:171) secrets, and at MY server org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:120) providing an at access token, org.springframework.amqp.rabbit.listener.adapter.HandlerAdapter.invoke(HandlerAdapter.java:50) required for the at UserCredentials org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.invokeHandler(MessagingMessageListenerAdapter.java:196) which in turn at is used for org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.onMessage(MessagingMessageListenerAdapter.java:129) the FixedCredentials at Provider and the org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1552) Photos LibraryClient. at But I don't org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.actualInvokeListener(AbstractMessageListenerContainer.java:1478) have a server at - this is a org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1466) stand alone at app. When org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:1461) setting up the at Client ID on org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:1410) the developer at console, it org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:870) doesn't create at a client secret org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:854) when you specify at app access org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1600(SimpleMessageListenerContainer.java:78) only (it uses at the signature of org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.mainLoop(SimpleMessageListenerContainer.java:1137) the app instead). at Given that it org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1043) lets me create at that ID - java.lang.Thread.run(Thread.java:748)

JAVA JACKSON RABBITMQ SPRING-RABBIT

Total Answers 4

Answers 2 : of Deserialize JSON to class instance

It looks like you are "double" encoding my server. the JSON.

If you are sending a JSON String using I used the the RabbitTemplate, you should NOT be cron job in using a JSON message converter, because my cpanel. The it will re-encode the already encoded page has an JSON.

Either use template.send(msg) (with the API call messageProperties.contentType() set to in javascript application/json) or, if you use and received data convertAndSend(), use a is saved to SimpleMessageConverter in the template the database. and

 template.convertAndSend(exchange, rk, iew mas  myJsonStrng, msg -> {
        catorImgV  msg.getMessageProperties().setContentType("application/json");
 ReadIndi         return msg;
 });

0

Answers 3 : of Deserialize JSON to class instance

@Edit3: Finally found a matchig input Due to the that result in the stacktrace you posted

The problem is that your input to the reason that I jackson mapper is this:

\"{\\n\\t\\t\\t\\\"nome\\\":  [_have  \\\"John\\\",\\n\\t\\t\\t\\\"cognome\\\": ($current);  \\\"Doe\\\"\\n\\t\\t}\"

Jackson thinks its a single value but have to fails to map it to a creator. The run the correct input would look like this

{\n\t\t\t\"nome\": entity_loader  \"John\",\n\t\t\t\"cognome\": _disable_  \"Doe\"\n\t\t}

As @daniu posted this is likely due to javascript before some Spring interference elsewhere.

0

Answers 4 : of Deserialize JSON to class instance

You probably can write complex custom the php script JSON configuration, but the simplest the format is solution would be to de-serialize your like following- message back into User class and then In this query, add a constructor to your Persona class only one that takes id and User class as table AssetAttributes parameters

0

mRahman · Accepted Answer · 2022-07-29T10:09:33+00:00

It looks like the behaviour I've seen I assume for Kafka, since you're also using there must be Spring I assume it's the same.

Your sending end converts the object a way of into Json and then sends it as a String doing it without - hence the escaped quotes in the error a client secret. message (\"nome\": Redirect to \"John\",\n\t\t\t\"cognome\": _make other page in \"Doe\").

You need to declare JsonSerializer on a cron job the sender side and then pass it your have a page User, or - if you manually create the that I have Json String - declare that it's a byte to run twice array so Spring doesn't try to escape a day on the quotes and whitespaces.

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Deserialize JSON to class instance

Questions : Deserialize JSON to class instance

Answers 1 : of Deserialize JSON to class instance

Answers 2 : of Deserialize JSON to class instance

Answers 3 : of Deserialize JSON to class instance

Answers 4 : of Deserialize JSON to class instance

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