how to send an object with URLConnection?
My goal is to send a object from a client application to a server using URLConnection The object User :
Public class user {
String nom;
Integer id ;
boolean sex;
}
I don't want to send it field by field but as an object.
You can send the object with an ObjectOutputStream .
A requirement for this would be that you implement the java.io.Serializable interface.
public class User implements Serializable {
......
}
Now to send an User-Object:
User usr = new User();
Url url;
HttpURLConnection conn;
ObjectOutputStream objout;
try {
url = new Url("http://192.160.1.1");
conn = (HttpURLConnection) url.getConnection();
conn.setDoOutput(true); //this is to enable writing
conn.setDoInput(true); //this is to enable reading
out = new ObjectOutputStream(conn.getOutputStream());
out.writeObject(usr);
out.close();
}
Now that object will be sent to the specified url.
You can use json to achieve your requirement.
In addition, followings may help you for learning Json.
http://www.mkyong.com/tutorials/java-json-tutorials/
How do you return a JSON object from a Java Servlet
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