<?page title="" contentType="text/html;charset=UTF-8"?>

<zk xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

        xmlns="http://www.zkoss.org/2005/zul"

        xsi:schemaLocation="http://www.zkoss.org/2005/zul http://www.zkoss.org/2005/zul">

<window id="testWin" border="none" apply="test.test19">

    邮箱：<textbox id="textbox"/>

</window>

</zk>

package test;

import org.zkoss.zk.ui.Component;

import org.zkoss.zk.ui.WrongValueException;

import org.zkoss.zk.ui.util.GenericAutowireComposer;

import org.zkoss.zul.Constraint;

import org.zkoss.zul.Textbox;

public class test19 extends GenericAutowireComposer<Component>{

    private static final long serialVersionUID = 1L;

    private Textbox textbox;

    @Override

    public void doAfterCompose(Component comp) throws Exception {

        // TODO Auto-generated method stub

        super.doAfterCompose(comp);

        textbox.setConstraint(new Constraint() {

            @Override

            public void validate(Component comp, Object obj)

                    throws WrongValueException {

                if (obj == null || obj.toString().trim().length() == 0) {

                    throw new WrongValueException(comp, "邮箱不能为空！");

                }else {

                    String regex = "^\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*$";

                    boolean result = obj.toString().matches(regex);

                    if (result == false) {

                        throw new WrongValueException(comp, "邮箱格式有误！");

                    }

                }

            }

        });

    }

}