Bootstrap和Java分页实例第二篇

<?xml version="1.0" encoding="UTF-8" ?>
<taglib xmlns="http://java.sun./xml/ns/j2ee"
 xmlns:xsi="http://.w3./2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun./xml/ns/j2eehttp://java.sun./xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
 version="2.0">
 <description>Pager</description>
 <tlib-version>1.0</tlib-version>
 <short-name>page</short-name>
 <uri></uri>
 <tag>
  <name>createPager</name>
  <tag-class>getui.util.Pager</tag-class>
  <body-content>JSP</body-content>
  <attribute>
   <name>curPage</name>
   <required>true</required>
   <rtexprvalue>true</rtexprvalue>
   <type>java.lang.Integer</type>
  </attribute>
  <attribute>
   <name>totalPage</name>
   <required>true</required>
   <rtexprvalue>true</rtexprvalue>
   <type>java.lang.Integer</type>
  </attribute>
  <attribute>
   <name>pageSize</name>
   <required>true</required>
   <rtexprvalue>true</rtexprvalue>
   <type>java.lang.Integer</type>
  </attribute>
  <attribute>
   <name>totalCount</name>
   <required>true</required>
   <rtexprvalue>true</rtexprvalue>
   <type>java.lang.Integer</type>
  </attribute>
  <attribute>
   <name>formId</name>
   <required>true</required>
   <rtexprvalue>true</rtexprvalue>
   <type>java.lang.String</type>
  </attribute>
 </tag>
</taglib>

package getui.util;
import java.io.IOException;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;

/***
 * 分页控件
 * 
 * @author Anny
 */
public class Pager extends TagSupport {

  private Integer curPage;   //当前页码
  private Integer totalPage;  //总页数
  private Integer pageSize = 10; //一页显示的记录数
  private Integer totalCount = 0; //记录总数
  private String formId;   //请求的action name
  private Integer lastIndex;  //结束索引

  public int doStartTag() throws JspException {
  StringBuffer buffer=new StringBuffer();
  JspWriter out = pageContext.getOut();

  int pageNumber = 0;
  if (totalPage % pageSize == 0) {
   pageNumber = totalPage / pageSize;
  } else {
   pageNumber = (totalPage / pageSize) + 1;
  }
  if (curPage < 1) {
   curPage = 1;
  }

  try {
   if (pageNumber > 0) {
   buffer.append("<script type='text/javascript'>");//script-Start
   buffer.append("function go(pageNum)");
   buffer.append("{");//{start
   buffer.append("var f = document.getElementById('" + formId + "');");
   buffer.append("f.action = f.action + '?pageNum=' + pageNum + '&pageSize="+pageSize + "';");
   buffer.append("f.submit();" );
   buffer.append("}");/