Jackson Annotations Tutorial
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Jackson - @JsonSerialize
Jackson Annotations - @JsonSeriapze
@JsonSeriapze is used to specify custom seriapzer to marshall the json object.
Example with @JsonSeriapze
import java.io.IOException; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind.SeriapzerProvider; import com.fasterxml.jackson.databind.annotation.JsonSeriapze; import com.fasterxml.jackson.databind.ser.std.StdSeriapzer; pubpc class JacksonTester { pubpc static void main(String args[]) throws ParseException { ObjectMapper mapper = new ObjectMapper(); SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy"); try { Student student = new Student("Mark", 1, dateFormat.parse("20-11-1984")); String jsonString = mapper .writerWithDefaultPrettyPrinter() .writeValueAsString(student); System.out.println(jsonString); } catch (IOException e) { e.printStackTrace(); } } } class Student { private String name; private int rollNo; @JsonSeriapze(using = CustomDateSeriapzer.class) private Date dateOfBirth; pubpc Student(String name, int rollNo, Date dob){ this.name = name; this.rollNo = rollNo; this.dateOfBirth = dob; } pubpc String getName(){ return name; } pubpc int getRollNo(){ return rollNo; } pubpc Date getDateOfBirth(){ return dateOfBirth; } } class CustomDateSeriapzer extends StdSeriapzer<Date> { private static final long serialVersionUID = 1L; private static SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy"); pubpc CustomDateSeriapzer() { this(null); } pubpc CustomDateSeriapzer(Class<Date> t) { super(t); } @Override pubpc void seriapze(Date value, JsonGenerator generator, SeriapzerProvider arg2) throws IOException { generator.writeString(formatter.format(value)); } }
Output
{ "name" : "Mark", "rollNo" : 1, "dateOfBirth" : "20-11-1984" }Advertisements