selecttag.java

一个专门用来快速开发网站的框架

package com.core.taglib;

import java.util.*;

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

public class SelectTag extends BaseTag {
    private static Log log = LogFactory.getLog(SelectTag.class);
    protected boolean emptyOption = false;
    protected boolean multiple = false;
    protected String size;
    protected String list;

    String cachename = "";

    public SelectTag() {
    }

    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();

        if (multiple) {
            bufSelf.append(" multiple ");
        }
        if (isEmptyOption()) {
            bufSelf.append(" emptyOption=\"true\" ");
        }

        if (getSize() != null && !getSize().equals("")) {
            bufSelf.append(" size=\"" + getSize() + "\"");
        }

        if (getValue() != null && !getValue().equals("")) {
            bufSelf.append(" value=\"" + getValue() + "\"");
        }

        return bufSelf.toString();
    }

    /**
     * 下拉框和录入框合二为一：
     * 1、如果缓存中没有就显示输入框。
     * 2、如果缓存中有就显示下拉框。
     */
    public String getHtmlStr() {
        String ret = "";
        // 两种情况都相同的部分
        String strComm = super.getCommHtml() + this.getSelfStr();
        // 检查OgnlValueStack是否有值。
        Object stackObject = TagUtils.getStack(this.pageContext).findValue(name);

//        if (this.getList() != null && this.getList().equals("sel_bmlist")) { /** 现有部门 */
//            this.setList(com.xckj.mdgl.common.cache.DeptCache.getInstance().select_list);
//        } else if (this.getList() != null && this.getList().equals("sel_bmlist_all")) { /** 所有部门 */
//            this.setList(com.xckj.mdgl.common.cache.DeptCache.getInstance().select_list_all);
//        } else if (this.getList() != null && this.getList().equals("sel_bmlist_zf")) { /** 作废部门 */
//            this.setList(com.xckj.mdgl.common.cache.DeptCache.getInstance().select_list_zf);
//        }

//        else if (this.getList() != null && this.getList().equals("select_list_all_bm_gw")) { /** 所有部门岗位 */
//            this.setList(com.xckj.mdgl.common.cache.PostCache.getInstance().select_list_all_bm_gw);
//        } else if (this.getList() != null && this.getList().equals("select_list_bm_gw")) { /** 现有部门岗位 */
//            this.setList(com.xckj.mdgl.common.cache.PostCache.getInstance().select_list_bm_gw);
//        } else if (this.getList() != null && this.getList().equals("select_list_zf_bm_gw")) { /** 作废部门岗位 */
//            this.setList(com.xckj.mdgl.common.cache.PostCache.getInstance().select_list_zf_bm_gw);
//        } else if (this.getList() != null && this.getList().equals("select_gwlist_all")) { /** 所有岗位 */
//            this.setList(com.xckj.mdgl.common.cache.PostCache.getInstance().select_list_all);
//        } else if(this.getList() != null && this.getList().equals("select_gwlist")){/** 现有岗位 */
//            this.setList(com.xckj.mdgl.common.cache.PostCache.getInstance().select_list);
//        }else if(this.getList() != null && this.getList().equals("select_gwlist_zf")){/** 作废岗位 */
//            this.setList(com.xckj.mdgl.common.cache.PostCache.getInstance().select_list_zf);
//        }


//        else if (this.getList() != null && this.getList().equals("select_yglist_all")) { /** 所有员工 */
//            this.setList(com.xckj.mdgl.common.cache.UserCache.getInstance().select_list_all);
//        } else if (this.getList() != null && this.getList().equals("select_yglist")) { /** 现有人 */
//            this.setList(com.xckj.mdgl.common.cache.UserCache.getInstance().select_list);
//        } else if (this.getList() != null && this.getList().equals("select_yglist_zf")) { /** 作废人 */
//            this.setList(com.xckj.mdgl.common.cache.UserCache.getInstance().select_list_zf);
//        } else if (this.getList() != null && this.getList().equals("select_list_bm_yg")) { /** 现有部门人 */
//            this.setList(com.xckj.mdgl.common.cache.UserCache.getInstance().select_list_bm_yg);
//        } else if (this.getList() != null && this.getList().equals("select_list_zf_bm_gw")) { /** 作废部门人 */
//            this.setList(com.xckj.mdgl.common.cache.UserCache.getInstance().select_list_zf_bm_yg);
//        } else if (this.getList() != null && this.getList().equals("select_list_all_bm_yg")) { /** 所有部门人 */
//            this.setList(com.xckj.mdgl.common.cache.UserCache.getInstance().select_list_all_bm_yg);
//        }

        if (this.getList() != null && !this.getList().equals("")) {

            ret = "<select" + strComm + ">";

            if (isEmptyOption()) {
                ret += "<option value=\"\">--请选择--</option>";
            }

            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 += "<option value=\"" + keyVal[1] + "\"" +
                            (keyVal[1].equals(stackObject.toString()) || keyVal[1].equals(getValue()) ? " selected" : "") + ">" + keyVal[0] + "</option>";
                    } else {
                        ret += "<option value=\"" + keyVal[1] + "\"" +
                            (keyVal[1].equals(getValue()) ? " selected" : "") + ">" + keyVal[0] + "</option>";
                    }
                } else {
                    if (null != stackObject) {
                        ret += "<option value=\"" + listVal[i] + "\"" +
                            (listVal[i].equals(stackObject.toString()) || listVal[1].equals(getValue()) ? " selected" : "") + ">" + listVal[i] + "</option>";
                    } else {
                        ret += "<option value=\"" + listVal[i] + "\"" +
                            (listVal[1].equals(getValue()) ? " selected" : "") + ">" + listVal[i] + "</option>";
                    }
                }
            }

            ret += "</select>";
        } else if (null != cachename && !cachename.equals("")) {
            String code = "";

            if (getValue() == null) {
                code = getValue();
            }

            if (null != stackObject) {
                code = stackObject.toString();
            }
            ret = "<select" + strComm + "> ";

            if (isEmptyOption()) {
                ret += "<option value=\"\">--请选择--</option>";
            }

            String strSelectCacheName = name;
            if (null != cachename && !cachename.equals("")) {
                strSelectCacheName = cachename;
            }

            // 检查是否有缓存列表。
            List selectList = SelcetCache.getInstance().getSelect(strSelectCacheName);
            if (selectList != null && selectList.size() > 0) {
                for (int i = 0; i < selectList.size(); i++) {
                    SelectOption option = (SelectOption) selectList.get(i);
                    ret += "<option value=\"" + option.getValue() + "\" " + (option.getValue().equals(code) ? " selected" : "") + ">" + option.getTitle() + "</option>";
                }
            }
            ret += "</select>";

        } else {
            ret = "<select" + strComm + "> ";

            if (isEmptyOption()) {
                ret += "<option value=\"\">--请选择--</option>";
            }

        }

        return ret;
    }

    public String getCachename() {
        return cachename;
    }

    public boolean isMultiple() {
        return multiple;
    }

    public String getSize() {
        return size;
    }

    public boolean isEmptyOption() {
        return emptyOption;
    }

    public String getList() {
        return list;
    }

    public void setCachename(String cachename) {
        this.cachename = cachename;
    }

    public void setMultiple(boolean multiple) {
        this.multiple = multiple;
    }

    public void setSize(String size) {
        this.size = size;
    }

    public void setEmptyOption(boolean emptyOption) {
        this.emptyOption = emptyOption;
    }

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

}