Apache Wicket forms using mongodb
Question
I have been trying to create a basic form in Eclipse using Apache Wicket. Used quickstart maven to setup the project. I started off with two form fields, name and gender.
import org.apache.wicket.markup.html.WebPage;
import java.util.*;
import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.markup.html.form.*;
public class WelcomePage extends WebPage {
private static final long serialVersionUID = -5223126205489216801L;
private List<String> genderChoices = new ArrayList<String>();
public WelcomePage(){
genderChoices.add("Male");
genderChoices.add("Female");
final USerModel uSerModel = new USerModel();
Form<?> form = new Form("form");
TextField<String> text = new TextField<String>("text", new PropertyModel<String>(uSerModel, "name"));
DropDownChoice<String> gender = new DropDownChoice<String>("gender", new PropertyModel<String>(uSerModel, "gender"),genderChoices);
Button button = new Button("submit"){
@Override
public void onSubmit() {
super.onSubmit();
System.out.println("Name :"+ uSerModel.getName());
System.out.println("Gender :"+ uSerModel.getGender());
}
};
add(form);
form.add(text);
form.add(gender);
form.add(button);
}
}
And with the HTML code too.
<!DOCTYPE html>
<html xmlns:wicket="http://wicket.apache.org">
<head>
</head>
<body>
<form wicket:id="form">
<input type="text" wicket:id="text" /><br />
<select wicket:id="gender">
<option></option>
</select><br />
<input type="submit" wicket:id="submit" />
</form>
</body>
</html>
Now, all these are working fine running in the tomcat server and displaying the output in the console window.
The issue came up when i had to enter the values in the form and the values were to be stored in a local database. I am using mongoDb for this purpose. So within the program, i setup a JDBC driver, wrote the code in a separate class for it.
Am not able to find out a way on how i can direct all my inputs to my local mongoDB database. Am a total beginner at both of these technologies. A little hand would be great. Thank you.
2 answers
solution1
0 2016-02-12 16:16:24
You may want to check https://docs.mongodb.org/getting-started/java/ . MongoDB is not JDBC compliant. It has its own driver and APIs. There are libraries like the ones listed as POJO mappers at https://docs.mongodb.org/ecosystem/drivers/java/ which make it easier to deal with BSON objects.
Have fun!
solution2
0 2016-05-15 17:50:45
We have a very nice with http://jongo.org/ Its very nice library that wraps MongoDB driver and provides very nice syntax.
DB db = new MongoClient().getDB("dbname");
Jongo jongo = new Jongo(db);
MongoCollection friends = jongo.getCollection("friends");
MongoCursor<Friend> all = friends.find("{name: 'Joe'}").as(Friend.class);
Friend one = friends.findOne("{name: 'Joe'}").as(Friend.class);
Friend joe = new Friend("Joe", 27);
friends.save(joe);
joe.age = 28;
friends.save(joe);
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