[JAVA] Try hitting the zip code search API with Spring Boot

What is the Zip Code Search API?

API published by Japan Post. You can get the zip code using REST.

Development environment

This time, we are running in the following environment.

This time's leading role: Rest Template


Service Class


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;

public class ZipCodeService {
	RestTemplate restTemplate;

	/**Zip Code Search API Request URL*/
	private static final String URL = "http://zipcloud.ibsnet.co.jp/api/search?zipcode={zipcode}";

	public ZipCodeDto service(String zipcode) {
		return restTemplate.getForObject(URL, ZipCodeDto.class, zipcode);

What is actually hitting the API is


It is the part of.

Dto Receive the data obtained by hitting with RestTemplate as a Java object.


package com.taku.springboot;

import java.util.ArrayList;
import java.util.List;

public class ZipCodeDto {
	int status;

	String message;

	/**Postal code information list*/
	List<ZipCodeDataDto> results = new ArrayList<>();

I will actually move it

thus… image.png

like this! image.png

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