How to Insert multiple rows from web form into database using java spring framework

Question

I am new to Java Spring Framework and I have a requirement in my new project.

Using the Spring framework, I have a POJO class with set and get methods. I also have i

Answer 1

I would achieve that by having another POJO serving as a container with a list of your POJOs inside.

This would look like this :

public class PojoForm {
    private List pojos;
    public List getPojos() {
        return pojos;
    }
    public void setPojos(List pojos) {
        this.pojos = pojos;
    }
}

Then in the controller, use this container instead of the actual pojo as a model attribute.

@ModelAttribute("pojoForm")
public PojoForm populatePojos() {
    // Don't forget to initialize the pojos list or else it won't work
    PojoForm pojoForm = new PojoForm();
    List pojos = new ArrayList();
    for(int i=0; i<2; i++) {
        pojos.add(new Pojo());
    }
    pojoForm.setPojos(pojos);
    return pojoForm;
}

@RequestMapping(method=RequestMethod.POST)
public String saveForm(@ModelAttribute("pojoForm") PojoForm pojoForm) {
    for(Pojo pojo : pojoForm.getPojos()) {
       service.save(pojo);
    }
    return "theview.jsp";
}

Then the view should look something like this :

a, b and c being the properties of the Pojo class.

You can also directly loop on the list like this :