Converting a long type to a string type by Fastjson

The back end transmits long data to the front end, which can cause loss of precision. For example:201511200001725439 Such a long integer, passed to the front end will become 201511200001725440.

Workaround:

Method One: In the background to convert the long field to string type, the risk is relatively large.

Method Two: Use the provided annotations of Fastjson,@JSONField (serializeusing= tostringserializer.class).

Note:

Fastjson provides a variety of annotation for data type conversions under the Com.alibaba.fastjson.serializer package.

You can also expand these annotations by implementing the Objectserializer interface.

　　Tostringserializer 's code:

 Public classTostringserializerImplementsObjectserializer { Public Static FinalTostringserializer instance =NewTostringserializer (); @Override Public voidWrite (Jsonserializer Serializer, Object object, Object FieldName, Type FieldType,intFeaturesthrowsIOException {serializewriter out=serializer.out; if(Object = =NULL) {out.writenull (); return; } String strval=object.tostring ();    Out.writestring (Strval); }}

Converting a long type to a string type by Fastjson