About the date to JSON-CodePudding

date directly json

 
@ RequestMapping (value="https://bbs.csdn.net/json4", produces="application/json; Charset=utf-8 ")//String format conversion produces="text/HTML. Charset=utf-8 "
@ ResponseBody 
Public String json4 () throws JsonProcessingException {

ObjectMapper mapper=new ObjectMapper (); 

Date date=new Date(); 

Return mapper. WriteValueAsString (date); 
}

with show figure, you can see the returned is a timestamp, let's to * *

after the improvement:

 
@ RequestMapping (value="https://bbs.csdn.net/json4", produces="application/json; Charset=utf-8 ")//String format conversion produces="text/HTML. Charset=utf-8 "
@ ResponseBody 
Public String json4 () throws JsonProcessingException {

ObjectMapper mapper=new ObjectMapper (); 
//in order not to return to the timestamp, so we choose to shut it down 
Mapper. The configure (SerializationFeature WRITE_DATES_AS_TIMESTAMPS, false); 
//custom date format issue 
Final SimpleDateFormat SDF=new SimpleDateFormat (" YYYY - MM - DD HH: MM: SS "); 
//set the mapper specified date format 
Mapper. SetDateFormat (SDF); 

Date date=new Date(); 

Return mapper. WriteValueAsString (date); 
}

I sent two articles about json can see too much code duplication, and throws an exception, so I will be in my next blog to encapsulate utility class.

CodePudding user response:

Have shortcomings, feel free to point out that