radiotag.java

一个专门用来快速开发网站的框架

package com.core.taglib;

import org.apache.commons.logging.*;
import com.opensymphony.webwork.views.jsp.*;

public class RadioTag extends BaseTag {
    private static Log log = LogFactory.getLog(RadioTag.class);
    private String checked;
    private String list = "";

    public RadioTag() {
    }

    public int doStartTag() throws javax.servlet.jsp.JspException {
        return SKIP_BODY;
    }

    public int doEndTag() throws javax.servlet.jsp.JspException {
        try {
            pageContext.getOut().print(getHtmlStr());
        } catch (Exception e) {
            throw new javax.servlet.jsp.JspException(e);
        }
        return EVAL_BODY_INCLUDE;
    }

    //得到独特属性的字符串
    public String getSelfStr() {
        StringBuffer bufSelf = new StringBuffer();

        return bufSelf.toString();
    }

    //得到最终的字符串
    public String getHtmlStr() {
        String ret = "";
        // step1:处理直接输出的普通属性。
        String strComm = super.getCommHtml();
//        log.info("普通属性的字符串是："+strComm);

        // 检查OgnlValueStack中的值。
        Object stackObject = TagUtils.getStack(this.pageContext).findValue(name);

        if (this.getList() != null && !this.getList().equals("")) {
            String temp = this.getList().substring(this.getList().indexOf("{") + 1, this.getList().indexOf("}"));
            String[] listVal = temp.split(",");
            for (int i = 0; i < listVal.length; i++) {
                if(listVal[i].indexOf(":") != -1){
                    String[] keyVal = listVal[i].split(":");
                    if (null != stackObject) {
                        ret += "<input type=\"radio\" " + strComm + " value=\"" + keyVal[1] + "\"" +
                            (keyVal[1].equals(stackObject.toString()) || keyVal[1].equals(getValue()) ? " checked" : "") + "> " + keyVal[0] +  "    ";
                    } else {
                        ret += "<input type=\"radio\" " + strComm + " value=\"" + keyVal[1] + "\"" +
                            (keyVal[1].equals(getValue()) ? " checked" : "") + "> " + keyVal[0] +  "    ";
                    }
                }
                else{
                    if (null != stackObject) {
                        ret += "<input type=\"radio\" " + strComm + " value=\"" + listVal[i] + "\"" +
                            (listVal[i].equals(stackObject.toString()) || listVal[i].equals(getValue()) ? " checked" : "") + "> " + listVal[i] +  "    ";
                    } else {
                        ret += "<input type=\"radio\" " + strComm + " value=\"" + listVal[i] + "\"" +
                            (listVal[i].equals(getValue()) ? " checked" : "") + "> " + listVal[i] +  "    ";
                    }
                }
            }

        }
        else{
            if (null != stackObject) {
                ret = "<input type=\"radio\" " + strComm + (getValue() == null || getValue().equals("")?"":" value=\"" + super.getValue() + "\"") +
                    (super.getValue().equals(stackObject.toString()) ? " checked" : "") + "> ";
            } else {
                ret = "<input type=\"radio\" " + strComm + (getValue() == null || getValue().equals("")?"":" value=\"" + super.getValue() + "\"") + (getChecked() != null?" checked":"") + "> ";
            }
        }

        return ret;
    }

    public String getList() {
        return list;
    }

    public String getChecked() {
        return checked;
    }

    public void setList(String list) {
        this.list = list;
    }

    public void setChecked(String checked) {
        this.checked = checked;
    }
}