helloform.java

本光盘包含了本书各章中出现的所有程序的源代码。 1. 如果是Java程序

package form;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.upload.FormFile;

public class HelloForm extends ActionForm{
	private static final long serialVersionUID = 1L;
	private String name;
	private FormFile file;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public FormFile getFile() {
		return file;
	}
	public void setFile(FormFile file) {
		this.file = file;
	}
	
	public ActionErrors validate(ActionMapping mapping,
			HttpServletRequest request)
	{
		ActionErrors errors = new ActionErrors();
		if(getName()==null||getName().trim().equals(""))
		{
			errors.add(ActionErrors.GLOBAL_MESSAGE,
					new ActionMessage("name.null","name"));
		}
		if(getFile() == null)
		{
			errors.add(ActionErrors.GLOBAL_MESSAGE,
					new ActionMessage("file.null","file"));
		}
		return errors;
	}
	
	public void reset(ActionMapping mapping,
			HttpServletRequest request){
		this.name = null;
		this.file = null;
	}
}