The flag of the United States of America, often referred to as the American flag, is the national flag of the United States. It consists of thirteen equal horizontal. I am trying to send a POST request to a servlet. Request is sent via jQuery in this way var productCategory new Object productCategory. ProductCategory 1. POST JSON fails with 4. Unsupported media type, Spring 3 mvc. Webopedias list of Data File Formats and File Extensions makes it easy to look through thousands of extensions and file formats to find what you need. It is a generally accepted standard that editors should attempt to follow, though it is best treated with common sense, and occasional exceptions may apply. Add chartofaccountsid, periodsetname and accountingperiodtype to enable sharing of AutoAllocations across ledgers sharing the same chart of accounts. I believe I ran exactly into the same issue. After countless hours of fighting with the JSON, the Java. Script and the Server, I found the culprit In my case I had a Date object in the DTO, this Date object was converted to a String so we could show it in the view with the format HH mm. When JSON information was being sent back, this Date String object had to be converted back into a full Date Object, therefore we also need a method to set it in the DTO. The big BUT is you cannot have 2 methods with the same name Overload in the DTO even if they have different type of parameter String vs Date because this will give you also the 4. Unsupported Media type error. This was my controller method Request. Mappingvalue alarmdownloadupdate, produces applicationjson, method Request. Software Program Kasir Gratis. Method. POST. public Response. Archive Name And Parameters Of Asl' title='Archive Name And Parameters Of Asl' />Body. Status. Response updateRequest. Body Alarm. Download. DTO row. List. System. Status. Response. This was my DTO example id getset and pre. Alarm get Methods are not included for code shortness Json. Ignore. Propertiesignore. Unknown true. public class Alarm. Download. DTO implements Serializable. Simple. Date. Format format. HHmm new Simple. Date. FormatHH mm. String id. Date pre. Alarm. public void set. Pre. AlarmDate date. Alarm date. public void set. Pre. AlarmString date. Alarm format. HHmm. Parse. Exception e. Alarm null. catch Null. Pointer. Exception e. Alarm null. To make everything work you need to remove the method with Date type parameter. This error is very frustrating. Hope this can save someone hours of debugging. Resolve a DOI Name.