springboot tutorial

https://www.dineshonjava.com/microservices-with-spring-boot/

aws example code

https://github.com/awsdocs/aws-doc-sdk-examples/tree/master/javascript/example_code

No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?

https://stackoverflow.com/questions/19655184/no-compiler-is-provided-in-this-environment-perhaps-you-are-running-on-a-jre-ra


27 no approach working

tomcat installation path

http://doraprojects.net/blog/?p=1109

Angular js 2 template link.

https://www.creative-tim.com/product/material-dashboard-angular2?tracking=first-time#

batch insert get insert id.

https://stackoverflow.com/questions/4224228/preparedstatement-with-statement-return-generated-keys

PreparedStatement preparedStatement = connection.prepareStatement(YOUR_SQL_HERE, PreparedStatement.RETURN_GENERATED_KEYS);
preparedStatement.setXXX(index, VALUE);
preparedStatement.executeUpdate();

ResultSet rs = preparedStatement.getGeneratedKeys();

if (rs.next()) {
    key = rs.getLong(1);
}

ps = connection.prepareStatement(sql, ps.RETURN_GENERATED_KEYS);

Java curl call

    public static String sendJAVARequest(String method, String javaApiPath, String requestBody, String sessionToken) {
        //String javaBasePath = "http://34.214.14.50:8484/adminservices/service/";
        String javaBasePath = System.getenv("JAVA_API_BASEURL");
        String responseOfRequest = "";
        try {
            URL url = new URL(javaBasePath + javaApiPath);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod(method);
            conn.setDoOutput(true);
            conn.setRequestProperty("Content-Type", "application/json");
            conn.setRequestProperty("session-token", sessionToken);
            String input = requestBody;
            OutputStream os = conn.getOutputStream();
            os.write(input.getBytes());
            os.flush();
            BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
            String output;
            System.out.println("Output from Server .... \n");
            while ((output = br.readLine()) != null) {
                responseOfRequest += output;
                System.out.println(output);
            }
            conn.disconnect();
        } catch (Exception ex) {
            ex.printStackTrace();
            Sentry.capture(ex);
        }
        return responseOfRequest;
    }

Java calander implementation

import java.util.*;

public class Main {

    public static void main(String args[])

    {

        TimeZone time_zone

            = TimeZone.getTimeZone("Pacific/Tahiti");

        Calendar calendar = Calendar.getInstance();

        calendar.setTimeZone(time_zone);

        System.out.println("Modified Zone: "

                           + calendar.getTimeZone()

.getDisplayName());

        System.out.println("The Current Date is:" + calendar.getTime());

        System.out.println("Current Calendar's Year: " + calendar.get(Calendar.YEAR));

        System.out.println("Current Calendar's Day: " + calendar.get(Calendar.DATE));

        System.out.println("Current MINUTE: " + calendar.get(Calendar.MINUTE));

        System.out.println("Current SECOND: " + calendar.get(Calendar.SECOND));

        calendar.add(Calendar.DATE, -15);

        System.out.println("15 days ago: " + calendar.getTime());

    }

}