checkedtag.java

OA典型例子

/*
 * $Id: CheckedTag.java,v 1.1 2001/10/21 04:46:04 gmurray Exp $
 * Copyright 2001 Sun Microsystems, Inc. All rights reserved.
 */

package com.sure.taglibs.smart;

import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.tagext.BodyContent;

import java.io.IOException;
import java.util.*;

/**
 * Defines what should be selected for an 'option' tag.
 */
public class CheckedTag extends BodyTagSupport {
    private String name="";
    public int doAfterBody() throws JspTagException {
        CheckboxTag tag
            = (CheckboxTag) findAncestorWithClass(this, CheckboxTag.class);
        BodyContent bc = getBodyContent();
        String selectedValue = bc.getString();
        if (selectedValue != null && !selectedValue.trim().toLowerCase().equals("true")) {
            tag.setChecked(true);
        } else {
            tag.setChecked(false);
        }
        bc.clearBody();
        return SKIP_BODY;
    }
  public void setName(String name)
  {
    this.name=name;
  }
}