package com.yeshi.fanli.tag;
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import java.io.IOException;
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import java.util.Iterator;
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import java.util.Map;
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import javax.servlet.jsp.JspException;
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import javax.servlet.jsp.JspWriter;
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import javax.servlet.jsp.tagext.TagSupport;
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public class PageTag extends TagSupport {
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/**
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*
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*/
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private static final long serialVersionUID = 1L;
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private String url; // ���ӵ�ַ
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private int pageindex;// ��ǰҳ
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private int pagesize; // ҳ��С
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private int totalLines; // �ܼ�¼����
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private Map<String, String> params;// ���Ӳ���
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private String preimage;
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private String nextimage;
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private String pagebg;
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private String inputbg;
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private String gobg;
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public int getPageindex() {
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return pageindex;
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}
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public void setPageindex(int pageindex) {
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this.pageindex = pageindex;
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}
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public String getPreimage() {
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return preimage;
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}
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public void setPreimage(String preimage) {
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this.preimage = preimage;
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}
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public String getNextimage() {
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return nextimage;
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}
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public void setNextimage(String nextimage) {
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this.nextimage = nextimage;
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}
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public String getPagebg() {
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return pagebg;
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}
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public void setPagebg(String pagebg) {
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this.pagebg = pagebg;
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}
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public String getInputbg() {
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return inputbg;
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}
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public void setInputbg(String inputbg) {
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this.inputbg = inputbg;
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}
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public String getGobg() {
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return gobg;
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}
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public void setGobg(String gobg) {
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this.gobg = gobg;
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}
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public String getUrl() {
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return url;
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}
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public void setUrl(String url) {
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this.url = url;
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}
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public int getPagesize() {
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return pagesize;
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}
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public void setPagesize(int pagesize) {
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this.pagesize = pagesize;
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}
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public int getTotalLines() {
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return totalLines;
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}
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public void setTotalLines(int totalLines) {
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this.totalLines = totalLines;
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}
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public Map<String, String> getParams() {
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return params;
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}
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public void setParams(Map<String, String> params) {
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this.params = params;
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}
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private int totalPages() {
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return totalLines % pagesize == 0 ? totalLines / pagesize : totalLines
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/ pagesize + 1;
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}
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// ��ȡ�����URL
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private String getAllUrl(int pageIndex) {
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String baseUrl = url;
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baseUrl += "?pageIndex=" + pageIndex;
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if (params != null) {
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Iterator<String> its = params.keySet().iterator();
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while (its.hasNext()) {
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String key = its.next();
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String value = params.get(key);
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baseUrl += "&" + key + "=" + value;
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}
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}
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return baseUrl;
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}
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@Override
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public int doStartTag() throws JspException {
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int totalPage = totalPages();
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String style = "background:url("
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+ pagebg
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+ ");width:38px;height:38px;text-align:center;line-height:38px;float:left;margin-left:1px;border:0;";
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String shenYuStyle = "float:left;margin-left:10px;height:38px;line-height:38px;";
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String jumpText = "float:left;margin-left:107px;height:38px;line-height:38px;";
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String inputStyle = "border:0;background:url("
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+ pagebg
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+ ");width:36px;height:36px;text-align:center;line-height:38px;float:left;margin-left:10px;";
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String content = "<div style='" + style + "'>"
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+ "<a href=''><img src='" + preimage + "' /></a></div>"
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+ "<div ><a href=''><input type='button' value='1' style='"
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+ style + "' /></a></div>" + "<div style='" + style
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+ "'><a href=''><img src='" + nextimage + "'/></a></div>"
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+ "<div style='" + jumpText + "'>��ǰҳ:" + pageindex + "/"
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+ totalPage + " ��ת����</div>"
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+ "<div ><input type='text' style='" + inputStyle
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+ "' /></div>" + "<a href=''><div style='" + style
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+ "'>Go</div></a>";
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if (pageindex < 1)
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pageindex = 1;
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if (pageindex > totalPage)
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pageindex = totalPage;
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String c = "<div style='" + style + "'>" + "<a href='"
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+ getAllUrl((pageindex > 1 ? pageindex - 1 : 1))
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+ "'><img src='" + preimage + "' /></a></div>";
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if (totalPage < 6) {
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for (int i = 0; i < totalPage; i++) {
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c += "<div><a href='" + getAllUrl((i + 1))
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+ "'><input type='button' value='" + (i + 1)
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+ "' style='" + style + "' /></a></div>";
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}
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} else {
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if (Math.abs(pageindex) < 3 || Math.abs(pageindex - totalPage) < 3) {
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if (Math.abs(pageindex) <= 3) {
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for (int i = 0; i < 5; i++) {
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c += "<div><a href='" + getAllUrl((i + 1))
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+ "'><input type='button' value='" + (i + 1)
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+ "' style='" + style + "' /></a></div>";
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}
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} else {
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for (int i = 0; i < 5; i++) {
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c += "<div><a href='" + getAllUrl(totalPage - 4 + i)
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+ "'><input type='button' value='"
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+ (totalPage - 4 + i) + "' style='" + style
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+ "' /></a></div>";
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}
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}
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} else {
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for (int i = 0; i < 5; i++) {
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c += "<div><a href='" + getAllUrl(i + pageindex - 2)
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+ "'><input type='button' value='"
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+ (i + pageindex - 2) + "' style='" + style
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+ "' /></a></div>";
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}
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}
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}
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c += "<div style='"
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+ style
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+ "'><a href='"
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+ getAllUrl(pageindex + 1 > totalPage ? totalPage
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: pageindex + 1) + "'><img src='" + nextimage
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+ "'/></a></div>" + "<div style='" + jumpText + "'>��ǰҳ:"
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+ pageindex + "/" + totalPage + " ��ת����</div>"
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+ "<div ><input type='text' id='jumppage' style='" + inputStyle
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+ "' /></div>"
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+ "<a href='#' onclick='javascript:getPage()'><div style='"
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+ style + "'>Go</div>";
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System.out.println(pageindex + "-" + totalLines + "-" + pagesize + "-"
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+ url + "-" + preimage + "-" + nextimage + "-" + pagebg + "-"
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+ inputbg + "-" + gobg + "-"
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+ pageContext.getRequest().getLocalAddr());
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JspWriter out = this.pageContext.getOut();
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try {
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out.print("<script type='text/javascript'>alert('123123'); function getPage(){alert('page');window.location="
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+ url
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+ "?pageIndex=document.getElementById('jumppage').value; }</script>");
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out.print(c);
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} catch (IOException e) {
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e.printStackTrace();
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}
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return EVAL_BODY_INCLUDE;
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}
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@Override
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public int doEndTag() throws JspException {
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// TODO Auto-generated method stub
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return super.doEndTag();
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}
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}
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