java 企业oa客户关系管理系统

package com.lyg.util; import java.io.*; import javax.servlet.jsp.*; import javax.servlet.jsp.tagext.*; public class PaginateNewVersion extends TagSupport { private int all = 0; //总计多少条记录 private int perpage = 1; //每页多少条 private int current = 1; //当前第几页 private int intTotalPages = 0; //总页数 private String context; //上下文环境 private String flag; //判断是前台还是后台分页 private int perSegment = 5; //每页显示页码数 private int currentSegment = 0; //当前页所在的段,从0开始 public void initial() { int intTemp = 0; all = all < 0 ? 0 : all; perpage = perpage < 1 ? 1 : perpage; current = current < 1 ? 1 : current; currentSegment = Math.round((current - 0.1f) / perSegment - 0.5f); intTemp = all / perpage; intTotalPages = (all % perpage == 0) ? intTemp : intTemp + 1; if (current > intTotalPages) { current = intTotalPages; } } public int doStartTag() throws JspException { this.initial(); try { this.pageContext.getOut().println(print()); } catch (IOException ex) { ex.printStackTrace(); } return SKIP_BODY; } public int doEndTag() throws JspException { return EVAL_PAGE; } /** * print the pagination */ public String print() { String strFirst = "<img style=\"display:inline\" align=\"center\" border=0 height=20 src=\"" + context + "/images/arrow_first.gif\">"; String strPrev = "<img style=\"display:inline\" align=\"top\" border=0 src=\"" + context + "/images/previous_page.gif\" >"; String strNext = "&nbsp;<img style=\"display:inline\" align=\"top\" border=0 src=\"" + context + "/images/next_page.gif\">"; String strLast = "<img style=\"display:inline\" align=\"center\" border=0 height=20 src=\"" + context + "/images/arrow_las.gif\">"; String strSpace = "&nbsp;"; StringBuffer sb = new StringBuffer(""); sb.append("<form name=innerForm>"); sb.append("<input type=\"hidden\" name=\"mhd\" value=\"toList\"/>"); if (flag != null && !flag.equals("")) { sb.append( "<input type=\"hidden\" name=\"flag\" value=\"gateway\"/>"); } sb = sb.append( "<table width=\"%100\" border=0 cellpadding=0 cellspacing=0 height=18>\n"); sb = sb.append(" <tbody>\n"); sb = sb.append(" <tr>\n"); sb = sb.append(" <td align=right width=\"100%\"><span class=\"font12g18h\"><font color=#333333>.:&nbsp;共找到&nbsp;" + all + "&nbsp; 笔记录&nbsp; [&nbsp;" + current + " / " + intTotalPages + "&nbsp;]</font></span>\n"); sb.append(strSpace); //生成下拉页面 String str = this.generatePageList(); sb = sb.append(str); sb.append(strSpace); sb.append(strSpace); sb = sb.append(strSpace); if (current > 1) { sb = sb.append("<a href='javascript:go(" + (current - 1) + ");'>" + strPrev + "</a>"); } else { sb = sb.append(strPrev); } sb = sb.append(strSpace); int prevPage = currentSegment * perSegment; if (currentSegment > 0) { sb = sb.append("<label class=font12g18h><a href='javascript:go(" + prevPage + ");'><<</a></label>"); } else { sb = sb.append("<label class=font12g18h><<</label>"); } str = this.generatePageArray(); sb = sb.append(str); sb.append(strSpace); sb.append(strSpace); int nextPage = (currentSegment + 1) * perSegment + 1; int totalSegment = Math.round((intTotalPages - 0.1f) / perSegment - 0.5f); if (currentSegment < totalSegment) { sb = sb.append("<label class=font12g18h><a href='javascript:go(" + nextPage + ");'>>></a></label>"); } else { sb = sb.append("<label class=font12g18h>>></label>"); } if (current < intTotalPages) { sb = sb.append("<a href='javascript:go(" + (current + 1) + ");'>" + strNext + "</a>"); } else { sb = sb.append(strNext); } sb = sb.append(strSpace); sb = sb.append(" </td>\n"); sb = sb.append(" </tr>\n"); sb = sb.append(" </tbody>\n"); sb = sb.append("</table>\n"); sb.append("</form>"); return sb.toString(); } /** * 生成分页的下拉页面 * @return String */ public String generatePageList() { String str = "<font color=#333333><select name=\"page\" onChange=\"change(document.innerForm.page.options[document.innerForm.page.selectedIndex].value)\" > "; str += "<option value=\"1\">请选择</option>"; for (int i = 1; i <= intTotalPages; i++) { str = str + "<option value=" + i + ">" + i + "</option>"; } str += "</select></font>"; return str; } public String generatePageArray() { int begin = 1; begin = currentSegment * perSegment + 1; int end = (begin + perSegment - 1) < intTotalPages ? (begin + perSegment - 1) : intTotalPages; String str = ""; for (int i = begin; i <= end; i++) { if (i == current) { str = str + "<strong class='font12g18h'>" + i + "</strong>"; } else { str = str + "<label class=font12g18h>" +"<a href='javascript:go(" + i + ");'>" +i + "</a></label>"; } if (i < end) { str += " "; } } return str; } // public String generatePageArray() { // String str = ""; // for (int i = 1; i <= intTotalPages; i++) { // str = str + "<input size=1 align=center readonly=true value=" + i + ">" + i + "</input>"; // } // // return str; // } public void setAll(int all) { this.all = all; } public void setPerpage(int perpage) { this.perpage = perpage; } public void setCurrent(int current) { this.current = current; } public void setContext(String context) { this.context = context; } public void setFlag(String flag) { this.flag = flag; } public int getAll() { return all; } public int getPerpage() { return perpage; } public int getCurrent() { return current; } public String getContext() { return context; } public String getFlag() { return flag; } }