How to save files to a server via Java?

Asked

Viewed 1,590 times

5

I need to save a file to a server using Java. In my case, I need to save a file json. I can save a file normally on my computer, but how do I save directly to a remote server? Below is an example that saves a file on my computer. My question is: to save this file on a remote server, how could I do?

public class EstudoJSON {

    public static void main(String[] args) throws IOException {
        JSONObject json = adicaoSimplesDeDados ();

        FileWriter file = new FileWriter("json//javaJSON.json");
        file.write(json.toString());
        file.flush();
        file.close();

        System.out.println(json.toString());

        adicaoDeUmObjeto ();
    }

    public static JSONObject adicaoSimplesDeDados () {
        Carro carro = new Carro();
        carro.setId(1l);
        carro.setModelo("Celta");
        carro.setPlaca("AAA1234");

        //Criacao do objeto carroJson
        JSONObject carroJson = new JSONObject();
        //Insercao de valores do carro no objeto JSON
        carroJson.put("id", carro.getId());
        carroJson.put("Modelo", carro.getModelo());
        carroJson.put("Placa", carro.getPlaca());

        System.out.println(carroJson);
        System.out.println(carroJson.get("Modelo"));

        return carroJson;
    } 

    public static void adicaoDeUmObjeto () {
        Carro carro = new Carro();
        carro.setId(1l);
        carro.setModelo("Ka");
        carro.setPlaca("AAA1234");

        JSONObject carroJson = new JSONObject();
        carroJson.put("Carro", carro);

        System.out.println(carroJson);
        System.out.println(carroJson.get("Carro"));
    }

}
java json filing-cabinet server
  • 1

    Depends on how you want to do it. You can do this using various protocols, including FTP, CIFS (used by Windows for folder and file sharing), Webservice, NFS, SCP (Secure copy over SSH), among others.

  • @Cantoni With which of these protocols has a simpler implementation?

  • Yeah, that’s a good question. Are you doing it to learn or solve something definitive? Using FTP, SCP or NFS requires you to have a program running on the server. CIFS requires you to have SAMBA if you want to use it on Linux. Finally, I believe that Webservice is an option that is platform independent and more in line with the current reality. However, remember that the ideal is that a secure connection is made between the client and the server via HTTPS.

  • To solve something definitive. I understood, with your tips, I will give a better search. So the best way is through Webservice?

  • @Cantoni I’m running a mobile application using phonegap to be able to enjoy the benefit of the Muti-platform, and the exchange of data between systems I am using will be done with json, that what I’ve researched is a good solution. I still don’t have much experience with this type of approach and with that I’m having some doubts, and one of them, was this one that I did.

  • 1

    In this scenario Duds, have no doubt: Webservice in the vein. :-)

  • Managed to solve your problem?

  • @Eduardoseixas not yet :/

Show 3 more comments

2 answers

1

If the program is running on your machine and must save a file on a remote machine, that remote machine must have a form of access like FTP, SSH or otherwise as quoted in the comments.

If the Java program is already on the server, then it is like saving locally. Just an interface for example Web (HTML).

If there can be two Java programs, one on your machine and one on the server, you can use Socket or Webservice. A client program would send data to the program on the server that would save the file or if it is only JSON it can save in the database as normal text or objects. In this third case is what a REST JSON Webservice does.

0

You could create a web service (Rest) and save the json in a database that stores json, such as mongodb.

Browser other questions tagged java json filing-cabinet server

You are not signed in. Login or sign up in order to post.