Fetctching API response from http://api.ipinfodb.com and converting them to Java Objects. Similiar strategy can be used for other APIs, also includes the implementation of POJO classes (Getters & Setters method)

ReadME.md

Fetctching API response from http://api.ipinfodb.com and converting them to Java Objects. Similiar strategy can be used for other APIs, also includes the implementation of POJO classes (Getters & Setters method)

JAR Files Used

• fastjson-1.2.73

APIFunctionCall.java

package com.company;

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//

import com.alibaba.fastjson.JSON;
import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.databind.JsonMappingException;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class APIFunctions {
    public static String ip = "94.200.55.38";
    public static String key = "9ceb467edd24cf7985f97e1e931af3eb9aca5cf63143ef09e442c188e0b7082f";
    public static String url;

    static {
        url = "http://api.ipinfodb.com/v3/ip-city/?key=" + key + "&ip=" + ip + "&format=json";
    }

    public APIFunctions() {
    }

    public static void MyGETRequest() throws IOException {
        URL urlForGetRequest = new URL(url);
        String readLine = null;
        HttpURLConnection conection = (HttpURLConnection)urlForGetRequest.openConnection();
        conection.setRequestMethod("GET");
        int responseCode = conection.getResponseCode();
        if (responseCode == 200) {
            BufferedReader in = new BufferedReader(new InputStreamReader(conection.getInputStream()));
            StringBuffer response = new StringBuffer();

            while((readLine = in.readLine()) != null) {
                response.append(readLine);
            }

            in.close();
            System.out.println("API Response " + response.toString());
        } else {
            System.out.println("GET NOT WORKED");
        }

    }



    public static void Convert_JSON() throws JsonGenerationException, JsonMappingException, IOException {
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection)obj.openConnection();
        con.setRequestMethod("GET");
        con.setRequestProperty("User-Agent", "Mozilla/5.0");
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        StringBuffer response = new StringBuffer();

        String inputLine;
        while((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }

        in.close();
        System.out.println(response.toString());
        new jsonPojo();
        jsonPojo instanceOfPojo = (jsonPojo)JSON.parseObject(response.toString(), jsonPojo.class);
        System.out.println("-------Afer converting to java object-------------------");
        System.out.println("statusCode --" + instanceOfPojo.getStatusCode());
        System.out.println("ipAddress --" + instanceOfPojo.getIpAddress());
        System.out.println("countryCode --" + instanceOfPojo.getCountryCode());
        System.out.println("countryName --" + instanceOfPojo.getCountryName());
        System.out.println("regionName --" + instanceOfPojo.getRegionName());
        System.out.println("cityName --" + instanceOfPojo.getCityName());
        System.out.println("zipCode --" + instanceOfPojo.getZipCode());
        System.out.println("latitude --" + instanceOfPojo.getLatitude());
        System.out.println("longitude --" + instanceOfPojo.getLongitude());
    }
}

jsonPojo.java

package com.company;

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//

public class jsonPojo {
    private String statusMessage;
    private String ipAddress;
    private String countryCode;
    private String countryName;
    private String regionName;
    private String cityName;
    private String zipCode;
    private String longitude;
    private String latitude;
    private String timezone;
    private String statusCode;

    public jsonPojo() {
    }

    public String getStatusCode() {
        return this.statusCode;
    }

    public void setStatusCode(String statusCode) {
        this.statusCode = statusCode;
    }

    public String getStatusMessage() {
        return this.statusMessage;
    }

    public void setStatusMessage(String statusMessage) {
        this.statusMessage = statusMessage;
    }

    public String getIpAddress() {
        return this.ipAddress;
    }

    public void setIpAddress(String ipAddress) {
        this.ipAddress = ipAddress;
    }

    public String getCountryCode() {
        return this.countryCode;
    }

    public void setCountryCode(String countryCode) {
        this.countryCode = countryCode;
    }

    public String getCountryName() {
        return this.countryName;
    }

    public void setCountryName(String countryName) {
        this.countryName = countryName;
    }

    public String getRegionName() {
        return this.regionName;
    }

    public void setRegionName(String regionName) {
        this.regionName = regionName;
    }

    public String getCityName() {
        return this.cityName;
    }

    public void setCityName(String cityName) {
        this.cityName = cityName;
    }

    public String getZipCode() {
        return this.zipCode;
    }

    public void setZipCode(String zipCode) {
        this.zipCode = zipCode;
    }

    public String getLongitude() {
        return this.longitude;
    }

    public void setLongitude(String longitude) {
        this.longitude = longitude;
    }

    public String getLatitude() {
        return this.latitude;
    }

    public void setLatitude(String latitude) {
        this.latitude = latitude;
    }

    public String getTimezone() {
        return this.timezone;
    }

    public void setTimezone(String timezone) {
        this.timezone = timezone;
    }
}

Main.java

package com.company;

public class Main {

    public static void main(String[] args) {
	// write your code here
        try {
            new APIFunctions();
            APIFunctions.Convert_JSON();



        } catch (Exception var2) {
            System.out.println(var2);
        }

    }
}

output

"C:\Program Files\Java\jdk1.8.0_261\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.2\lib\idea_rt.jar=49645:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.2\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_261\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_261\jre\lib\rt.jar;D:\Work\TPTechnologies\Working Projects\out\production\Working Projects;D:\Work\TPTechnologies\Java Patterns\Airline Shipping -20200801T163431Z-001\Airline Shipping\JAR Files\ALL\fastjson-1.2.73.jar;D:\Work\TPTechnologies\Java Patterns\Airline Shipping -20200801T163431Z-001\Airline Shipping\JAR Files\ALL\javax.xml-1.3.4.jar;D:\Work\TPTechnologies\Java Patterns\Airline Shipping -20200801T163431Z-001\Airline Shipping\JAR Files\ALL\com.fasterxml.jackson.core.jar;D:\Work\TPTechnologies\Java Patterns\Airline Shipping -20200801T163431Z-001\Airline Shipping\JAR Files\ALL\com.fasterxml.jackson.databind.jar" com.company.Main
{	"statusCode" : "OK",	"statusMessage" : "",	"ipAddress" : "xx",	"countryCode" : "AE",	"countryName" : "United Arab Emirates",	"regionName" : "Dubayy",	"cityName" : "Dubai",	"zipCode" : "-",	"latitude" : "xxx",	"longitude" : "xx",	"timeZone" : "+04:00"}
-------Afer converting to java object-------------------
statusCode --OK
ipAddress --xxxxxxx
countryCode --AE
countryName --United Arab Emirates
regionName --Dubayy
cityName --Dubai
zipCode ---
latitude --xxxxxx
longitude --xxxxxx