helloform.java

Struts 开发的helloword程序

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package hello;
import org.apache.struts.action.*;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;

public class HelloForm extends ActionForm {
	
	private String userName=null;

	public ActionErrors validate(ActionMapping mapping,
			HttpServletRequest request) {
		
		ActionErrors errors=new ActionErrors();

	    if((userName==null)||(userName.length()<1))//如果用户没有输入姓名就提交表单
	      errors.add("username",new ActionMessage("hello.no.username.error"));//返回包含错误信息的ActionErrors对象

	    return errors;
	}

	
	public void reset(ActionMapping mapping, HttpServletRequest request) {
		 this.userName=null;
	}

	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}
}