Styjun

Cubic programming and beyond?

Where is the USB2 OTG port on the RPi 4 Model B located?

Bishop game - python

How can one write good dialogue in a story without sounding wooden?

Why would guns not work in the dungeon?

I quit, and boss offered me 3 month "grace period" where I could still come back

Redirect https to fqdn

affect vs effect

Where or how can I find what interfaces an out of the box Apex class implements?

Why did my rum cake turn black?

Machine learning and operations research projects

Why do players in the past play much longer tournaments than today's top players?

Are there any intersection of Theory A and Theory B?

How might the United Kingdom become a republic?

What is temperature on a quantum level

Correct use of ergeben?

Creating custom objects with custom properties using generics

What is the difference between logical consistency and logical entailment in deductive logic?

(async () => )(); what is this?

Does Google Maps take into account hills/inclines for route times?

Is `curl something | sudo bash -` a reasonably safe installation method?

Why isn't there research to build a standard lunar, or Martian mobility platform?

Supporting developers who insist on using their pet language

Professor falsely accusing me of cheating in a class he does not teach, two months after end of the class. What precautions should I take?

I want to post ArrayList, but return null value

Spring Security OAuth2 SSO with Custom provider + logoutJakson polymorphic Enum caseError returned when trying to call my local webservice using springboot(Spring, Thymeleaf) How to request to controller 'POST' with list of model inside a model?MockMvc post junit test returning 415 when ResponseBody have collectionspringboot-mongodb CRUD applicationSpring boot security cannot log in after invalid credentialso.s.web.servlet.PageNotFound No mapping for GETSpring Controller gives me 404 status error@Value in Springboot returns null

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

0

POSTMAN :

 "childDTO":[
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 , 
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 
 ]

Controller.....

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody CustomerDTO cus)

return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());

Service......

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type);

Service Impl......

@Override

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type) 

 List<CustomerDTO> typeChild = new ArrayList<>();
 if (type==children) 
 for (CustomerDTO customer1 : typeChild) 
 customer1.setAge(age);
 customer1.setGender(gender);
 customer1.setOccupation(occupation);
 customer1.setType(type);
 customer1.setBenifits(benifitDTO(beni.getRiders(), beni.getSumAssuarance()));
 System.out.println("list:-"+customer1);
 typeChild.add(customer1);

 
 
 System.out.println("list:-"+typeChild);
 return typeChild;

spring-boot

share|improve this question

edited Mar 26 at 5:14

georges van

2,46322 gold badges2525 silver badges4040 bronze badges

asked Mar 26 at 4:57

kaveeth srikaveeth sri

433 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Can you please post code of CustomerDTO ? and What value children will have!
  
  – user3145373 ツ
  Mar 26 at 5:19
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  private String age; private String gender; private String occupation; private String type; private BenifitsDTO benifits;
  
  – kaveeth sri
  Mar 26 at 5:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So I think you post request will never be received as You're passing array data and in @RequestBody you're trying to receive data in single object !
  
  – user3145373 ツ
  Mar 26 at 5:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  controller :-CustomerDTO [age=null, gender=null, occupation=null, type=null, benifits=null]
  
  – kaveeth sri
  Mar 26 at 5:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  post request data not assign in controller
  
  – kaveeth sri
  Mar 26 at 5:40
  

  
  
  
  

add a comment | 

0

POSTMAN :

 "childDTO":[
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 , 
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 
 ]

Controller.....

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody CustomerDTO cus)

return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());

Service......

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type);

Service Impl......

@Override

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type) 

 List<CustomerDTO> typeChild = new ArrayList<>();
 if (type==children) 
 for (CustomerDTO customer1 : typeChild) 
 customer1.setAge(age);
 customer1.setGender(gender);
 customer1.setOccupation(occupation);
 customer1.setType(type);
 customer1.setBenifits(benifitDTO(beni.getRiders(), beni.getSumAssuarance()));
 System.out.println("list:-"+customer1);
 typeChild.add(customer1);

 
 
 System.out.println("list:-"+typeChild);
 return typeChild;

spring-boot

share|improve this question

edited Mar 26 at 5:14

georges van

2,46322 gold badges2525 silver badges4040 bronze badges

asked Mar 26 at 4:57

kaveeth srikaveeth sri

433 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Can you please post code of CustomerDTO ? and What value children will have!
  
  – user3145373 ツ
  Mar 26 at 5:19
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  private String age; private String gender; private String occupation; private String type; private BenifitsDTO benifits;
  
  – kaveeth sri
  Mar 26 at 5:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So I think you post request will never be received as You're passing array data and in @RequestBody you're trying to receive data in single object !
  
  – user3145373 ツ
  Mar 26 at 5:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  controller :-CustomerDTO [age=null, gender=null, occupation=null, type=null, benifits=null]
  
  – kaveeth sri
  Mar 26 at 5:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  post request data not assign in controller
  
  – kaveeth sri
  Mar 26 at 5:40
  

  
  
  
  

add a comment | 

POSTMAN :

 "childDTO":[
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 , 
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 
 ]

Controller.....

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody CustomerDTO cus)

return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());

Service......

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type);

Service Impl......

@Override

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type) 

 List<CustomerDTO> typeChild = new ArrayList<>();
 if (type==children) 
 for (CustomerDTO customer1 : typeChild) 
 customer1.setAge(age);
 customer1.setGender(gender);
 customer1.setOccupation(occupation);
 customer1.setType(type);
 customer1.setBenifits(benifitDTO(beni.getRiders(), beni.getSumAssuarance()));
 System.out.println("list:-"+customer1);
 typeChild.add(customer1);

 
 
 System.out.println("list:-"+typeChild);
 return typeChild;

spring-boot

share|improve this question

edited Mar 26 at 5:14

georges van

2,46322 gold badges2525 silver badges4040 bronze badges

asked Mar 26 at 4:57

kaveeth srikaveeth sri

433 bronze badges

 "childDTO":[
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 , 
 "age":"80",
 "gender":"kavi",
 "occupation":"main",
 "type":"mainlife"
 
 ]

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody CustomerDTO cus)

return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type);

public List<CustomerDTO> childDTO(String age, String gender, String occupation, String type) 

 List<CustomerDTO> typeChild = new ArrayList<>();
 if (type==children) 
 for (CustomerDTO customer1 : typeChild) 
 customer1.setAge(age);
 customer1.setGender(gender);
 customer1.setOccupation(occupation);
 customer1.setType(type);
 customer1.setBenifits(benifitDTO(beni.getRiders(), beni.getSumAssuarance()));
 System.out.println("list:-"+customer1);
 typeChild.add(customer1);

 
 
 System.out.println("list:-"+typeChild);
 return typeChild;

share|improve this question

edited Mar 26 at 5:14

georges van

2,46322 gold badges2525 silver badges4040 bronze badges

asked Mar 26 at 4:57

kaveeth srikaveeth sri

433 bronze badges

share|improve this question

edited Mar 26 at 5:14

georges van

2,46322 gold badges2525 silver badges4040 bronze badges

asked Mar 26 at 4:57

kaveeth srikaveeth sri

433 bronze badges

edited Mar 26 at 5:14

georges van

2,46322 gold badges2525 silver badges4040 bronze badges

edited Mar 26 at 5:14

georges van

2,46322 gold badges2525 silver badges4040 bronze badges

asked Mar 26 at 4:57

kaveeth srikaveeth sri

433 bronze badges

asked Mar 26 at 4:57

kaveeth srikaveeth sri

433 bronze badges

2 Answers
2

active

oldest

votes

1

You did not post what variable children is, probably some class field, but you cannot compare Java Strings with ==. Java Strings must be compared with .equals:

...
if (type.equals(children)) {
...

Use a debugger next time, to see what's happening in your code.

share|improve this answer

answered Mar 26 at 5:14

StrelokStrelok

40k66 gold badges8080 silver badges103103 bronze badges

add a comment | 

0

Your request and controller RequestBody structure do not match.
You need to use List.

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody List<CustomerDTO> cusList) // here list needs to be used
 if(cusList != null && !cusList.isEmpty()) 
 CustomerDTO cus = cusList.get(0); // it will get first element from the list, if you want to process all the elements then you need to iterate the list
 return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());
 

Now other logic will be as it or you may change it as per your requirement.

share|improve this answer

answered Mar 26 at 5:46

user3145373 ツuser3145373 ツ

5,05355 gold badges2929 silver badges4949 bronze badges

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55350100%2fi-want-to-post-arraylist-but-return-null-value%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

1

You did not post what variable children is, probably some class field, but you cannot compare Java Strings with ==. Java Strings must be compared with .equals:

...
if (type.equals(children)) {
...

Use a debugger next time, to see what's happening in your code.

share|improve this answer

answered Mar 26 at 5:14

StrelokStrelok

40k66 gold badges8080 silver badges103103 bronze badges

add a comment | 

1

You did not post what variable children is, probably some class field, but you cannot compare Java Strings with ==. Java Strings must be compared with .equals:

...
if (type.equals(children)) {
...

Use a debugger next time, to see what's happening in your code.

share|improve this answer

answered Mar 26 at 5:14

StrelokStrelok

40k66 gold badges8080 silver badges103103 bronze badges

add a comment | 

You did not post what variable children is, probably some class field, but you cannot compare Java Strings with ==. Java Strings must be compared with .equals:

...
if (type.equals(children)) {
...

Use a debugger next time, to see what's happening in your code.

share|improve this answer

answered Mar 26 at 5:14

StrelokStrelok

40k66 gold badges8080 silver badges103103 bronze badges

...
if (type.equals(children)) {
...

share|improve this answer

answered Mar 26 at 5:14

StrelokStrelok

40k66 gold badges8080 silver badges103103 bronze badges

answered Mar 26 at 5:14

StrelokStrelok

40k66 gold badges8080 silver badges103103 bronze badges

answered Mar 26 at 5:14

StrelokStrelok

40k66 gold badges8080 silver badges103103 bronze badges

0

Your request and controller RequestBody structure do not match.
You need to use List.

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody List<CustomerDTO> cusList) // here list needs to be used
 if(cusList != null && !cusList.isEmpty()) 
 CustomerDTO cus = cusList.get(0); // it will get first element from the list, if you want to process all the elements then you need to iterate the list
 return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());
 

Now other logic will be as it or you may change it as per your requirement.

share|improve this answer

answered Mar 26 at 5:46

user3145373 ツuser3145373 ツ

5,05355 gold badges2929 silver badges4949 bronze badges

add a comment | 

0

Your request and controller RequestBody structure do not match.
You need to use List.

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody List<CustomerDTO> cusList) // here list needs to be used
 if(cusList != null && !cusList.isEmpty()) 
 CustomerDTO cus = cusList.get(0); // it will get first element from the list, if you want to process all the elements then you need to iterate the list
 return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());
 

Now other logic will be as it or you may change it as per your requirement.

share|improve this answer

answered Mar 26 at 5:46

user3145373 ツuser3145373 ツ

5,05355 gold badges2929 silver badges4949 bronze badges

add a comment | 

Your request and controller RequestBody structure do not match.
You need to use List.

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody List<CustomerDTO> cusList) // here list needs to be used
 if(cusList != null && !cusList.isEmpty()) 
 CustomerDTO cus = cusList.get(0); // it will get first element from the list, if you want to process all the elements then you need to iterate the list
 return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());
 

Now other logic will be as it or you may change it as per your requirement.

share|improve this answer

answered Mar 26 at 5:46

user3145373 ツuser3145373 ツ

5,05355 gold badges2929 silver badges4949 bronze badges

@PostMapping("/child")
public List<CustomerDTO> childDTO(@RequestBody List<CustomerDTO> cusList) // here list needs to be used
 if(cusList != null && !cusList.isEmpty()) 
 CustomerDTO cus = cusList.get(0); // it will get first element from the list, if you want to process all the elements then you need to iterate the list
 return calculationService.childDTO(cus.getAge(),cus.getGender(),cus.getOccupation(),cus.getType());
 

share|improve this answer

answered Mar 26 at 5:46

user3145373 ツuser3145373 ツ

5,05355 gold badges2929 silver badges4949 bronze badges

answered Mar 26 at 5:46

user3145373 ツuser3145373 ツ

5,05355 gold badges2929 silver badges4949 bronze badges

answered Mar 26 at 5:46

user3145373 ツuser3145373 ツ

5,05355 gold badges2929 silver badges4949 bronze badges