Myujth

I have used angular to send the array of objects to Api for post operation which is going with Arrays of 3 Objects:

I wanted this in java so i initialized class in java as:

SLDto.java

 public class SLDto 

 private LetterDto letterDto;
 private List<DocumentDto> documentDto;
 private List<SelectionCustomOfficeDto> selectionCustomOfficeDto;



 public SLDto() 

 
//i omitted getters and setters here
 

LetterDto.java

public class LetterDto {

 private int clkletter;
 private String inOut;
 private String inOutNo;
private String inOutDate;
private String letterIssuedSubBy;
private String letterFile;
private String representativeName;
private int assessmentNo;
private int selectionNo;


public LetterDto() 

DocumentDto.java

public class DocumentDto 

 private int docId;
 private String docName;
 private boolean checked;

 public DocumentDto() 

 

SelectionCustomOfficeDto.java

public class SelectionCustomOfficeDto 

 private int id;
 private String fromDate;
 private String toDate;
 private int consignmentNo;
 private int selectionId;
 private int customOfficeId;
 private String custOfficeName;
 private String selectionName;

i need to map the Client side Objects to Api so i used the method :

 @PostMapping(value = "/letter/create")
 public String postAllOne(@RequestBody SLDto sldto ) 

 //i tried 2ways to see the json data or trace it and assign into 
 respective objects but i am not getting.I tried
 1st method
 System.out.println(sldto.getLetterDto()); //Not working 

 2nd method 
 for(LetterDto letterDto:sldto.getLetterDto()) 
 //it is not allowing me
 

 return "success";
 

it is not allowing me to map as:

How can i separate the 3json data into their respective Object?

["inOutNo":"2018-11-12","inOutDate":"2","inOut":"AnnexOne","letterFile":null,"representativeName":null,"assessmentNo":0,"letterIssuedSubBy":null,"selectionNo":8,["docId":1,"docName":"proforma invoice","checked":true,"docId":2,"docName":"Packing list","checked":true],["customOfficeId":"1","fromDate":"2018-11-12","toDate":"2018-11-20","consignmentNo":2,"selectionId":8,"selectionName":"PCS","custOfficeName":"Bhairawa Bhansar"]] 

The error seen is

I am getting error like

"DefaultHandlerExceptionResolver : Resolved
[org.springframework.http.converter.HttpMessageNotReadableException:
JSON parse error: Cannot deserialize instance of
com.ashwin.springsecurityangular.dto.SLDto out of START_ARRAY token;
nested exception is
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot
deserialize instance of com.ashwin.springsecurityangular.dto.SLDto out
of START_ARRAY token"

You should send like json like below:

 
 "letterDto" : "clkletter": "as" , // your other properties,
 "documentDto": ["docId" : 1,"docId" : 2]// your other properties inside json object
 "selectionCustomOfficeDto": ["id": 12,"id": 121]// your other properties inside json object

 

The below is example for your reference, The outer class has List<Inner2>, List<Inner3> and Inner1

The Json would looks like

 "inner1": "f1": "v1","f2": "v2",
 "inner2s": ["f3": "v3","f4": "v4","f3": "v5","f4": "v6"],

 "inner3s": ["f5": "v7","f6": "v8","f5": "v9","f6": "v10"]

PoJo classes

class Outer
 Inner1 inner1;
 List<Inner2> inner2s;
 List<Inner3> inner3s;

 public Inner1 getInner1() 
 return inner1;
 
 public void setInner1(Inner1 inner1) 
 this.inner1 = inner1;
 
 public List<Inner2> getInner2s() 
 return inner2s;
 
 public void setInner2s(List<Inner2> inner2s) 
 this.inner2s = inner2s;
 
 public List<Inner3> getInner3s() 
 return inner3s;
 
 public void setInner3s(List<Inner3> inner3s) 
 this.inner3s = inner3s;
 

 

 class Inner1

 String f1;
 String f2;
 public String getF1() 
 return f1;
 
 public void setF1(String f1) 
 this.f1 = f1;
 
 public String getF2() 
 return f2;
 
 public void setF2(String f2) 
 this.f2 = f2;
 



 
 class Inner2
 String f3;
 String f4;
 public String getF3() 
 return f3;
 
 public void setF3(String f3) 
 this.f3 = f3;
 
 public String getF4() 
 return f4;
 
 public void setF4(String f4) 
 this.f4 = f4;
 


 

 class Inner3
 String f5;
 String f6;
 public String getF5() 
 return f5;
 
 public void setF5(String f5) 
 this.f5 = f5;
 
 public String getF6() 
 return f6;
 
 public void setF6(String f6) 
 this.f6 = f6;
 


 

The request mapping

@RequestMapping(value="/test",produces=MediaType.APPLICATION_JSON_VALUE,method= RequestMethod.POST)
 public String post(@RequestBody Outer outer) 
 LOGGER.debug("Getting the logged in cutomer details" +outer);
 Customer customer1 = new Customer("1", "customer1", "Sample@cust1.com");
 LOGGER.info("The customer details are " + customer1);
 return "done!!";
 

Hi please make sure your JSON request looks like this :

 "letterDto" : 
 "clkletter" : 1,
 "inOut" : "some-string-value",
 "inOutNo" : "some-string-value",
 "inOutDate" : "some-string-value",
 "letterIssuedSubBy" : "some-string-value",
 "letterFile" : "some-string-value",
 "representativeName" : "some-string-value",
 "assessmentNo" : 1,
 "selectionNo" : 1
 ,
 "documentDto" : [
 
 "docId" : 1,
 "docName" : "some-doc-name",
 "checked" : true
 ,
 
 "docId" : 2,
 "docName" : "some-doc-name",
 "checked" : true
 ,
 
 "docId" : 3,
 "docName" : "some-doc-name",
 "checked" : true
 
 ],
 "selectionCustomOfficeDto" : [
 
 "id" : 1,
 "fromDate" : "some-date",
 "toDate" : "some-date",
 "consignmentNo" : 1,
 "selectionId" : 1,
 "customOfficeId" : 1,
 "custOfficeName" : "some-office-name",
 "selectionName" : "some-selection-name"
 ,
 
 "id" : 2,
 "fromDate" : "some-date",
 "toDate" : "some-date",
 "consignmentNo" : 1,
 "selectionId" : 1,
 "customOfficeId" : 1,
 "custOfficeName" : "some-office-name",
 "selectionName" : "some-selection-name"
 ,
 
 "id" : 3,
 "fromDate" : "some-date",
 "toDate" : "some-date",
 "consignmentNo" : 1,
 "selectionId" : 1,
 "customOfficeId" : 1,
 "custOfficeName" : "some-office-name",
 "selectionName" : "some-selection-name"
 
 ]

Also, in the code block,

for(LetterDto letterDto:sldto.getLetterDto()) 
//it is not allowing me

Here sldto.getLetterDto() return a single LetterDto Object instead of a List, so iteration is not possible.

Hope it helps!

Your current POST method handler expects a JSON object of the following format:

 "letterDto" : 
 "clkletter" : 1, 
 "inOut" : "Someting",
 ...
 ,
 "documentDto" : [
 
 "docId" : 1,
 "docName" : "Name",
 "checked" : true
 ,
 
 "docId" : 2,
 "docName" : "Name 2",
 "checked" : false
 
 ],
 "selectionCustomOfficeDto" : [
 
 "id" : 1,
 "fromDate" : "someDate,
 ...
 ,
 
 "id" : 2,
 "fromDate" : "someDate2,
 ...
 
 ]

But currently, you are sending a JSON array:

[
 "letterDto" : <letter properties>,
 [
 
 <document properties>
 ,
 
 <document properties>
 
 ],
 [
 
 <selection custom office properties>
 
 ]
]

After fixing this, you will be able to iterate over slDto.getDocumentDto and slDto.getSelectionCustomOfficeDto as those are the only collections contained in the slDto object, so:

slDto.getSelectionCustomOfficeDto.forEach(s -> doSomething(s));

slDto.getDocumentDto.forEach(d -> doSomething(d));

And you can call the Letter's methods like this:

slDto.getLetterDto.getId();