[Java] "T" is included in date type JSON in API response

When creating a Web API in Java, the date type such as LocalDateTime type is displayed in the response.

2019-01-01T01:00:00

Solution if it becomes like

Solution

--Create a serialized adapter --Create package-info.java in the package with the response model and load the created adapter

Example in JAXB

Create an adapter

LocalDateAdapter.java

package api.adapters;

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

import javax.xml.bind.annotation.adapters.XmlAdapter;

public class LocalDateAdapter extends XmlAdapter<String, LocalDate> {
	@Override
	public LocalDate unmarshal(String s) throws Exception {

		if (s == null) {
			return null;
		}
		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
		LocalDate dateTime = LocalDate.parse(s, formatter);
		return dateTime;
	}

	@Override
	public String marshal(LocalDate d) throws Exception {
		if (d == null) {
			return null;
		}
		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
		String formattedDateTime = d.format(formatter);
		return formattedDateTime;
	}
}

LocalDateTimeAdapter.java

package api.adapters;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

import javax.xml.bind.annotation.adapters.XmlAdapter;

public class LocalDateTimeAdapter extends XmlAdapter<String, LocalDateTime> {
	@Override
	public LocalDateTime unmarshal(String s) throws Exception {

		if (s == null) {
			return null;
		}
		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
		LocalDateTime dateTime = LocalDateTime.parse(s, formatter);
		return dateTime;
	}

	@Override
	public String marshal(LocalDateTime d) throws Exception {
		if (d == null) {
			return null;
		}
		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
		String formattedDateTime = d.format(formatter);
		return formattedDateTime;
	}
}

Read with package-info

package-info.java

//Annotate the adapter
@XmlJavaTypeAdapters(value = { @XmlJavaTypeAdapter(value = LocalDateTimeAdapter.class, type = java.time.LocalDateTime.class),
@XmlJavaTypeAdapter(value = LocalDateAdapter.class, type = java.time.LocalDate.class) })
package api.model.response;

import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapters;

//Import adapter
import api.adapters.LocalDateAdapter;
import api.adapters.LocalDateTimeAdapter;