?? pagecontroltag.java
字號:
package examonline.taglibs;
import java.io.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import examonline.struts.*;
public class PageControlTag extends TagSupport
{
private String href;
private String pbname;
private String preShowValue = "previous";
private String nextShowValue = "next";
private String lastShowValue = "last";
public PageControlTag()
{
}
/**
* doEndTag
*
* @return int
* @throws JspException
* @todo Implement this javax.servlet.jsp.tagext.Tag method
*/
public int doEndTag() throws JspException
{
HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
HttpSession session = pageContext.getSession();
JspWriter out = pageContext.getOut();
PageBean pb = (PageBean) session.getAttribute(pbname);
if (pb == null)
return 0;
int maxpage = pb.getMaxPage();
int prepage = pb.getPrePage();
int nextpage = pb.getNextPage();
if (href != null)
{
if (href.indexOf("?") != -1)
href = href + "&";
else
href = href + "?";
}
try
{
if (prepage > 0)
out.write("<a href=\"" + href + "?page=" + prepage + "\">" +
preShowValue + "</a>");
else
out.write(preShowValue + " ");
if (nextpage <= maxpage)
{
out.write("<a href=\"" + href + "page=" + nextpage + "\"> " +
nextShowValue + "</a>");
out.write("<a href=\"" + href + "page=" + maxpage + "\"> " +
lastShowValue + " </a>");
}
else
{
out.write(" " + nextShowValue + " " + lastShowValue);
}
}
catch (IOException ex)
{
}
return this.EVAL_PAGE;
}
public String getHref()
{
return href;
}
public String getPbname()
{
return pbname;
}
public String getPreShowValue()
{
return preShowValue;
}
public String getNextShowValue()
{
return nextShowValue;
}
public String getLastShowValue()
{
return lastShowValue;
}
public void setHref(String href)
{
this.href = href;
}
public void setPbname(String pbname)
{
this.pbname = pbname;
}
public void setPreShowValue(String preShowValue)
{
this.preShowValue = preShowValue;
}
public void setNextShowValue(String nextShowValue)
{
this.nextShowValue = nextShowValue;
}
public void setLastShowValue(String lastShowValue)
{
this.lastShowValue = lastShowValue;
}
}
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