tagutil.java

一个简单的java邮件系统源码

package com.easyjf.util;

import java.util.List;

import com.easyjf.beans.BeanWrapper;
/**
 * 用于生成并处理各种各样标签的工具类
 * @author 大峡
 *
 */
public class TagUtil {
	private static TagUtil singleton=new TagUtil();
	public static TagUtil getInstance()
	{
		return singleton;
	}
	/**
	 * 显示页码
	 * 
	 * @param currentPage
	 * @param pages
	 * @return 分布htmp字符串
	 */
	public static String showPageHtml(int currentPage, int pages) {
		String s = "";
		if (currentPage > 1) {
			s += "<a href=# onclick='return gotoPage(1)'>首页</a> ";
			s += "<a href=# onclick='return gotoPage(" + (currentPage - 1)
					+ ")'>上一页</a> ";
		}

		int beginPage = currentPage - 3 < 1 ? 1 : currentPage - 3;
		if (beginPage < pages) {
			s += "第　";
			for (int i = beginPage, j = 0; i <= pages && j < 6; i++, j++) {
				if (i == currentPage)
					s += "<font color=red>" + i + "</font> ";
				else
					s += "<a href=# onclick='return gotoPage(" + i + ")'>" + i
							+ "</a> ";
			}
			s += "页　";
		}
		if (currentPage < pages) {
			s += "<a href=# onclick='return gotoPage(" + (currentPage + 1)
					+ ")'>下一页</a> ";
			s += "<a href=# onclick='return gotoPage(" + pages + ")'>末页</a> ";
		}
		// s+=" 转到<input type=text size=2>页";
		return s;
	}

	public static String showPublishPageHtml(String path, int currentPage,
			int pages) {
		String s = "";
		boolean isDir = false;
		if (path.endsWith("/"))
			isDir = true;
		if (currentPage > 1) {
			s += "<a href=" + path + (isDir ? "1" : "") + ".htm>首页</a> ";
			s += "<a href=" + path
					+ (currentPage - 1 > 1 ? (currentPage - 1) + "" : "")
					+ ".htm>上一页</a> ";
		}
		int beginPage = currentPage - 3 < 1 ? 1 : currentPage - 3;
		if (beginPage < pages) {
			s += "第　";
			for (int i = beginPage, j = 0; i <= pages && j < 6; i++, j++) {
				if (i == currentPage)
					s += "<font color=red>" + i + "</font> ";
				else
					s += "<a href=" + path
							+ (i > 1 ? i + "" : (isDir ? i + "" : ""))
							+ ".htm>" + i + "</a> ";
			}
			s += "页　";
		}
		if (currentPage < pages) {
			s += "<a href=" + path + (currentPage + 1) + ".htm>下一页</a> ";
			s += "<a href=" + path + pages + ".htm>末页</a> ";
		}
		// s+=" 转到<input type=text size=2>页";
		return s;
	}

	public static String options(List list,String valuePoperty,String titlePoperty,String value)
	{
		if(list==null)return "";		
		String[][] items=new String[list.size()][2];
		for(int i=0;i<list.size();i++)
		{
			BeanWrapper wrapper=new BeanWrapper(list.get(i));
			items[i][0]=wrapper.getPropertyValue(valuePoperty).toString();
			items[i][1]=wrapper.getPropertyValue(titlePoperty).toString();
			
		}
		return options(items,value);
	}
	public static String options(String[][] items, String value) {		
		String s = "";
		for (int i = 0; i < items.length; i++) {
			s += "<option value='" + items[i][0] + "' "
					+ (items[i][0].equals(value) ? "selected" : "") + ">"
					+ items[i][1] + "</option>";
		}
		return s;
	}

	public static String options(int min, int max, int value) {
		String s = "";
		for (int i = min; i <= max; i++) {
			s += "<option value='" + i + "' " + (i == value ? "selected" : "")
					+ ">" + i + "</option>";
		}
		return s;
	}

	public static String checkBox(Object value) {
		String ret = "";		
		if (value instanceof Boolean) {
			if (((Boolean) value).booleanValue())
				ret = "checked";
		}		
		return ret;
	}
	public static String checkBox(String obj,Object value) {
		String ret = "";
		if (obj!=null && obj.equals(value)) {
				ret = "checked";
		}		
		return ret;
	}
	
}