How to send Integer value in the form of JSON format and recieve in REST Controller?












0















I have one REST Controller where I have written this code



@PostMapping(value = "/otp")
public void otp(@RequestBody Integer mobile) {

System.out.println(" Mobile = "+mobile);
}


And I am calling this method from Postman with the following inputs



URL : localhost:8080/otp



Body :



{
"mobile":123456
}


But I am getting the following exception



org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Can not deserialize instance of java.lang.Integer out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.lang.Integer out of START_OBJECT token


If I am taking String as a parameter like this



@PostMapping(value = "/otp")
public void otp(@RequestBody String mobile) {

System.out.println(" Mobile = "+mobile);
}


And passing the inputs as



{
"mobile":123456
}


Now it is printing in the console as follows



 Mobile = {
"mobile":"123456"
}


But I want only this value 123456. How to achieve my requirement?




NOTE: I don't want to create any additional POJO class or even I don't want to send the data using query/path parameter.











share|improve this question

























  • I would say: Instead of { "mobile" : 123456 } simply send 123456 as the HTTP body. Alternatively create a class Mobile with an Integer field and use that as the method's parameter.

    – Seelenvirtuose
    Nov 21 '18 at 12:18


















0















I have one REST Controller where I have written this code



@PostMapping(value = "/otp")
public void otp(@RequestBody Integer mobile) {

System.out.println(" Mobile = "+mobile);
}


And I am calling this method from Postman with the following inputs



URL : localhost:8080/otp



Body :



{
"mobile":123456
}


But I am getting the following exception



org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Can not deserialize instance of java.lang.Integer out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.lang.Integer out of START_OBJECT token


If I am taking String as a parameter like this



@PostMapping(value = "/otp")
public void otp(@RequestBody String mobile) {

System.out.println(" Mobile = "+mobile);
}


And passing the inputs as



{
"mobile":123456
}


Now it is printing in the console as follows



 Mobile = {
"mobile":"123456"
}


But I want only this value 123456. How to achieve my requirement?




NOTE: I don't want to create any additional POJO class or even I don't want to send the data using query/path parameter.











share|improve this question

























  • I would say: Instead of { "mobile" : 123456 } simply send 123456 as the HTTP body. Alternatively create a class Mobile with an Integer field and use that as the method's parameter.

    – Seelenvirtuose
    Nov 21 '18 at 12:18
















0












0








0








I have one REST Controller where I have written this code



@PostMapping(value = "/otp")
public void otp(@RequestBody Integer mobile) {

System.out.println(" Mobile = "+mobile);
}


And I am calling this method from Postman with the following inputs



URL : localhost:8080/otp



Body :



{
"mobile":123456
}


But I am getting the following exception



org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Can not deserialize instance of java.lang.Integer out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.lang.Integer out of START_OBJECT token


If I am taking String as a parameter like this



@PostMapping(value = "/otp")
public void otp(@RequestBody String mobile) {

System.out.println(" Mobile = "+mobile);
}


And passing the inputs as



{
"mobile":123456
}


Now it is printing in the console as follows



 Mobile = {
"mobile":"123456"
}


But I want only this value 123456. How to achieve my requirement?




NOTE: I don't want to create any additional POJO class or even I don't want to send the data using query/path parameter.











share|improve this question
















I have one REST Controller where I have written this code



@PostMapping(value = "/otp")
public void otp(@RequestBody Integer mobile) {

System.out.println(" Mobile = "+mobile);
}


And I am calling this method from Postman with the following inputs



URL : localhost:8080/otp



Body :



{
"mobile":123456
}


But I am getting the following exception



org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Can not deserialize instance of java.lang.Integer out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.lang.Integer out of START_OBJECT token


If I am taking String as a parameter like this



@PostMapping(value = "/otp")
public void otp(@RequestBody String mobile) {

System.out.println(" Mobile = "+mobile);
}


And passing the inputs as



{
"mobile":123456
}


Now it is printing in the console as follows



 Mobile = {
"mobile":"123456"
}


But I want only this value 123456. How to achieve my requirement?




NOTE: I don't want to create any additional POJO class or even I don't want to send the data using query/path parameter.








java json spring spring-boot spring-restcontroller






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edited Nov 21 '18 at 12:29







Altaf

















asked Nov 21 '18 at 12:09









AltafAltaf

3110




3110













  • I would say: Instead of { "mobile" : 123456 } simply send 123456 as the HTTP body. Alternatively create a class Mobile with an Integer field and use that as the method's parameter.

    – Seelenvirtuose
    Nov 21 '18 at 12:18





















  • I would say: Instead of { "mobile" : 123456 } simply send 123456 as the HTTP body. Alternatively create a class Mobile with an Integer field and use that as the method's parameter.

    – Seelenvirtuose
    Nov 21 '18 at 12:18



















I would say: Instead of { "mobile" : 123456 } simply send 123456 as the HTTP body. Alternatively create a class Mobile with an Integer field and use that as the method's parameter.

– Seelenvirtuose
Nov 21 '18 at 12:18







I would say: Instead of { "mobile" : 123456 } simply send 123456 as the HTTP body. Alternatively create a class Mobile with an Integer field and use that as the method's parameter.

– Seelenvirtuose
Nov 21 '18 at 12:18














5 Answers
5






active

oldest

votes


















1














You can use a class as request body:



class Request {
public Integer mobile;
}


and specify the parameter like this:



public void otp(@RequestBody Request mobile) {
...





share|improve this answer
























  • I don't want to create an extra class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes.

    – Altaf
    Nov 21 '18 at 12:21



















1














Create a pojo class like below.



public class Mobile{
private Integer mobile;
//getter and setter
}


And then



public void otp(@RequestBody Mobile mobile)


to print value use



mobile.getMobile();





share|improve this answer


























  • I don't want to send the data in the query parameter. I want to send through JSON body only.

    – Altaf
    Nov 21 '18 at 12:15











  • Although such a class is one way to go, OP wants to have an integer, not a string!

    – Seelenvirtuose
    Nov 21 '18 at 12:19











  • thanks for correction..in question one place he mentioned string too.

    – Alien
    Nov 21 '18 at 12:21











  • I don't want to create an extra POJO class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes. And even I don't want to send the data as query or path parameter. Except these, if there is any solution then tell me.

    – Altaf
    Nov 21 '18 at 12:25



















1














If you want to send your body like:



{
"mobile":123456
}


You will create another object to receive the value.



But if you only want to accept the integer value without any other object, you will not put json object in request body, but only the integer itself.



Body:



12345






share|improve this answer































    0














    Converting process with json and @RequestBody is automatically and need you provide a class which contains proper field.If you insist to send data by request body,you could use String to receive json data as String.For example:



    public void test(@RequestBody String request){
    log.info(request);
    }


    In this way the request body you received is a String.You need some other tool to help you convert it.Like org.json,you could get more info from here HttpServletRequest get JSON POST data



    But the easiest way is creating a new class to receive the data or changing @RequestBody to @RequestParam or @Pathvariable.



    If you still want to use json as the request body,maybe you could create a common class A which contain lots of fields like name,phone number,email...Then after you send a request which only contains mobile,you just need to A.getMobile().In this way, even you get 100 request,you still need one POJO(but not recommend)






    share|improve this answer

































      -1














      if you have org.json.JSONObject



       @PostMapping(value = "/otp")
      public void otp(@RequestBody String mobile) {
      JSONObject obj = new JSONObejct(mobile);
      System.out.print(obj.getInt("mobile"));
      }





      share|improve this answer





















      • 1





        can you please give me reason for down vote? i will learn:(

        – Mr code.
        Nov 21 '18 at 12:28











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      5 Answers
      5






      active

      oldest

      votes








      5 Answers
      5






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1














      You can use a class as request body:



      class Request {
      public Integer mobile;
      }


      and specify the parameter like this:



      public void otp(@RequestBody Request mobile) {
      ...





      share|improve this answer
























      • I don't want to create an extra class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes.

        – Altaf
        Nov 21 '18 at 12:21
















      1














      You can use a class as request body:



      class Request {
      public Integer mobile;
      }


      and specify the parameter like this:



      public void otp(@RequestBody Request mobile) {
      ...





      share|improve this answer
























      • I don't want to create an extra class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes.

        – Altaf
        Nov 21 '18 at 12:21














      1












      1








      1







      You can use a class as request body:



      class Request {
      public Integer mobile;
      }


      and specify the parameter like this:



      public void otp(@RequestBody Request mobile) {
      ...





      share|improve this answer













      You can use a class as request body:



      class Request {
      public Integer mobile;
      }


      and specify the parameter like this:



      public void otp(@RequestBody Request mobile) {
      ...






      share|improve this answer












      share|improve this answer



      share|improve this answer










      answered Nov 21 '18 at 12:18









      HenryHenry

      34k54260




      34k54260













      • I don't want to create an extra class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes.

        – Altaf
        Nov 21 '18 at 12:21



















      • I don't want to create an extra class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes.

        – Altaf
        Nov 21 '18 at 12:21

















      I don't want to create an extra class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes.

      – Altaf
      Nov 21 '18 at 12:21





      I don't want to create an extra class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes.

      – Altaf
      Nov 21 '18 at 12:21













      1














      Create a pojo class like below.



      public class Mobile{
      private Integer mobile;
      //getter and setter
      }


      And then



      public void otp(@RequestBody Mobile mobile)


      to print value use



      mobile.getMobile();





      share|improve this answer


























      • I don't want to send the data in the query parameter. I want to send through JSON body only.

        – Altaf
        Nov 21 '18 at 12:15











      • Although such a class is one way to go, OP wants to have an integer, not a string!

        – Seelenvirtuose
        Nov 21 '18 at 12:19











      • thanks for correction..in question one place he mentioned string too.

        – Alien
        Nov 21 '18 at 12:21











      • I don't want to create an extra POJO class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes. And even I don't want to send the data as query or path parameter. Except these, if there is any solution then tell me.

        – Altaf
        Nov 21 '18 at 12:25
















      1














      Create a pojo class like below.



      public class Mobile{
      private Integer mobile;
      //getter and setter
      }


      And then



      public void otp(@RequestBody Mobile mobile)


      to print value use



      mobile.getMobile();





      share|improve this answer


























      • I don't want to send the data in the query parameter. I want to send through JSON body only.

        – Altaf
        Nov 21 '18 at 12:15











      • Although such a class is one way to go, OP wants to have an integer, not a string!

        – Seelenvirtuose
        Nov 21 '18 at 12:19











      • thanks for correction..in question one place he mentioned string too.

        – Alien
        Nov 21 '18 at 12:21











      • I don't want to create an extra POJO class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes. And even I don't want to send the data as query or path parameter. Except these, if there is any solution then tell me.

        – Altaf
        Nov 21 '18 at 12:25














      1












      1








      1







      Create a pojo class like below.



      public class Mobile{
      private Integer mobile;
      //getter and setter
      }


      And then



      public void otp(@RequestBody Mobile mobile)


      to print value use



      mobile.getMobile();





      share|improve this answer















      Create a pojo class like below.



      public class Mobile{
      private Integer mobile;
      //getter and setter
      }


      And then



      public void otp(@RequestBody Mobile mobile)


      to print value use



      mobile.getMobile();






      share|improve this answer














      share|improve this answer



      share|improve this answer








      edited Nov 21 '18 at 12:21

























      answered Nov 21 '18 at 12:12









      AlienAlien

      5,03831026




      5,03831026













      • I don't want to send the data in the query parameter. I want to send through JSON body only.

        – Altaf
        Nov 21 '18 at 12:15











      • Although such a class is one way to go, OP wants to have an integer, not a string!

        – Seelenvirtuose
        Nov 21 '18 at 12:19











      • thanks for correction..in question one place he mentioned string too.

        – Alien
        Nov 21 '18 at 12:21











      • I don't want to create an extra POJO class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes. And even I don't want to send the data as query or path parameter. Except these, if there is any solution then tell me.

        – Altaf
        Nov 21 '18 at 12:25



















      • I don't want to send the data in the query parameter. I want to send through JSON body only.

        – Altaf
        Nov 21 '18 at 12:15











      • Although such a class is one way to go, OP wants to have an integer, not a string!

        – Seelenvirtuose
        Nov 21 '18 at 12:19











      • thanks for correction..in question one place he mentioned string too.

        – Alien
        Nov 21 '18 at 12:21











      • I don't want to create an extra POJO class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes. And even I don't want to send the data as query or path parameter. Except these, if there is any solution then tell me.

        – Altaf
        Nov 21 '18 at 12:25

















      I don't want to send the data in the query parameter. I want to send through JSON body only.

      – Altaf
      Nov 21 '18 at 12:15





      I don't want to send the data in the query parameter. I want to send through JSON body only.

      – Altaf
      Nov 21 '18 at 12:15













      Although such a class is one way to go, OP wants to have an integer, not a string!

      – Seelenvirtuose
      Nov 21 '18 at 12:19





      Although such a class is one way to go, OP wants to have an integer, not a string!

      – Seelenvirtuose
      Nov 21 '18 at 12:19













      thanks for correction..in question one place he mentioned string too.

      – Alien
      Nov 21 '18 at 12:21





      thanks for correction..in question one place he mentioned string too.

      – Alien
      Nov 21 '18 at 12:21













      I don't want to create an extra POJO class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes. And even I don't want to send the data as query or path parameter. Except these, if there is any solution then tell me.

      – Altaf
      Nov 21 '18 at 12:25





      I don't want to create an extra POJO class for one attribute/value. If we have a requirement in 100 classes then we unnecessary we need to create 100 POJO classes. And even I don't want to send the data as query or path parameter. Except these, if there is any solution then tell me.

      – Altaf
      Nov 21 '18 at 12:25











      1














      If you want to send your body like:



      {
      "mobile":123456
      }


      You will create another object to receive the value.



      But if you only want to accept the integer value without any other object, you will not put json object in request body, but only the integer itself.



      Body:



      12345






      share|improve this answer




























        1














        If you want to send your body like:



        {
        "mobile":123456
        }


        You will create another object to receive the value.



        But if you only want to accept the integer value without any other object, you will not put json object in request body, but only the integer itself.



        Body:



        12345






        share|improve this answer


























          1












          1








          1







          If you want to send your body like:



          {
          "mobile":123456
          }


          You will create another object to receive the value.



          But if you only want to accept the integer value without any other object, you will not put json object in request body, but only the integer itself.



          Body:



          12345






          share|improve this answer













          If you want to send your body like:



          {
          "mobile":123456
          }


          You will create another object to receive the value.



          But if you only want to accept the integer value without any other object, you will not put json object in request body, but only the integer itself.



          Body:



          12345







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 21 '18 at 12:32









          Jaiwo99Jaiwo99

          6,53732343




          6,53732343























              0














              Converting process with json and @RequestBody is automatically and need you provide a class which contains proper field.If you insist to send data by request body,you could use String to receive json data as String.For example:



              public void test(@RequestBody String request){
              log.info(request);
              }


              In this way the request body you received is a String.You need some other tool to help you convert it.Like org.json,you could get more info from here HttpServletRequest get JSON POST data



              But the easiest way is creating a new class to receive the data or changing @RequestBody to @RequestParam or @Pathvariable.



              If you still want to use json as the request body,maybe you could create a common class A which contain lots of fields like name,phone number,email...Then after you send a request which only contains mobile,you just need to A.getMobile().In this way, even you get 100 request,you still need one POJO(but not recommend)






              share|improve this answer






























                0














                Converting process with json and @RequestBody is automatically and need you provide a class which contains proper field.If you insist to send data by request body,you could use String to receive json data as String.For example:



                public void test(@RequestBody String request){
                log.info(request);
                }


                In this way the request body you received is a String.You need some other tool to help you convert it.Like org.json,you could get more info from here HttpServletRequest get JSON POST data



                But the easiest way is creating a new class to receive the data or changing @RequestBody to @RequestParam or @Pathvariable.



                If you still want to use json as the request body,maybe you could create a common class A which contain lots of fields like name,phone number,email...Then after you send a request which only contains mobile,you just need to A.getMobile().In this way, even you get 100 request,you still need one POJO(but not recommend)






                share|improve this answer




























                  0












                  0








                  0







                  Converting process with json and @RequestBody is automatically and need you provide a class which contains proper field.If you insist to send data by request body,you could use String to receive json data as String.For example:



                  public void test(@RequestBody String request){
                  log.info(request);
                  }


                  In this way the request body you received is a String.You need some other tool to help you convert it.Like org.json,you could get more info from here HttpServletRequest get JSON POST data



                  But the easiest way is creating a new class to receive the data or changing @RequestBody to @RequestParam or @Pathvariable.



                  If you still want to use json as the request body,maybe you could create a common class A which contain lots of fields like name,phone number,email...Then after you send a request which only contains mobile,you just need to A.getMobile().In this way, even you get 100 request,you still need one POJO(but not recommend)






                  share|improve this answer















                  Converting process with json and @RequestBody is automatically and need you provide a class which contains proper field.If you insist to send data by request body,you could use String to receive json data as String.For example:



                  public void test(@RequestBody String request){
                  log.info(request);
                  }


                  In this way the request body you received is a String.You need some other tool to help you convert it.Like org.json,you could get more info from here HttpServletRequest get JSON POST data



                  But the easiest way is creating a new class to receive the data or changing @RequestBody to @RequestParam or @Pathvariable.



                  If you still want to use json as the request body,maybe you could create a common class A which contain lots of fields like name,phone number,email...Then after you send a request which only contains mobile,you just need to A.getMobile().In this way, even you get 100 request,you still need one POJO(but not recommend)







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Nov 22 '18 at 3:29

























                  answered Nov 22 '18 at 3:16









                  AokoQinAokoQin

                  794




                  794























                      -1














                      if you have org.json.JSONObject



                       @PostMapping(value = "/otp")
                      public void otp(@RequestBody String mobile) {
                      JSONObject obj = new JSONObejct(mobile);
                      System.out.print(obj.getInt("mobile"));
                      }





                      share|improve this answer





















                      • 1





                        can you please give me reason for down vote? i will learn:(

                        – Mr code.
                        Nov 21 '18 at 12:28
















                      -1














                      if you have org.json.JSONObject



                       @PostMapping(value = "/otp")
                      public void otp(@RequestBody String mobile) {
                      JSONObject obj = new JSONObejct(mobile);
                      System.out.print(obj.getInt("mobile"));
                      }





                      share|improve this answer





















                      • 1





                        can you please give me reason for down vote? i will learn:(

                        – Mr code.
                        Nov 21 '18 at 12:28














                      -1












                      -1








                      -1







                      if you have org.json.JSONObject



                       @PostMapping(value = "/otp")
                      public void otp(@RequestBody String mobile) {
                      JSONObject obj = new JSONObejct(mobile);
                      System.out.print(obj.getInt("mobile"));
                      }





                      share|improve this answer















                      if you have org.json.JSONObject



                       @PostMapping(value = "/otp")
                      public void otp(@RequestBody String mobile) {
                      JSONObject obj = new JSONObejct(mobile);
                      System.out.print(obj.getInt("mobile"));
                      }






                      share|improve this answer














                      share|improve this answer



                      share|improve this answer








                      edited Nov 21 '18 at 12:37

























                      answered Nov 21 '18 at 12:24









                      Mr code.Mr code.

                      13811




                      13811








                      • 1





                        can you please give me reason for down vote? i will learn:(

                        – Mr code.
                        Nov 21 '18 at 12:28














                      • 1





                        can you please give me reason for down vote? i will learn:(

                        – Mr code.
                        Nov 21 '18 at 12:28








                      1




                      1





                      can you please give me reason for down vote? i will learn:(

                      – Mr code.
                      Nov 21 '18 at 12:28





                      can you please give me reason for down vote? i will learn:(

                      – Mr code.
                      Nov 21 '18 at 12:28


















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