<%@ page contentType="text/html; charset=gb2312" %>
<%@ taglib prefix="ww" uri="/webwork" %>
<jsp:include flush="true" page="/head.jsp"></jsp:include>
<div align="center">
<ww:set name="pg" value="#request.pager"/>
<table width="500" border="1" cellspacing="0" bordercolor="#666666">
  <tr>
    <td width="210"><div align="center">图书名称</div></td>
    <td width="140"><div align="center">价格</div></td>
  </tr>
  <ww:iterator value="#request['books']" id="book">
  <tr>
    <td><div align="center"><ww:property value="#book.bookname"/></div></td>
    <td><div align="center"><ww:property value="#book.price" /></div></td>
  </tr>
  </ww:iterator>
</table>
<ww:if test="#pg.hasFirst">
    <a href="browsebook.action?currentPage=1">首页</a>
</ww:if>
<ww:else>首页</ww:else>
<ww:if test="#pg.hasPrevious">
    <a href="browsebook.action?currentPage=<ww:property value="#pg.currentPage-1"/>">前页</a>
</ww:if>
<ww:else>前页</ww:else>
<ww:if test="#pg.hasNext">
    <a href="browsebook.action?currentPage=<ww:property value="#pg.currentPage+1"/>">后页</a>
</ww:if>
<ww:else>后页</ww:else>
<ww:if test="#pg.hasLast">
    <a href="browsebook.action?currentPage=<ww:property value="#pg.totalPages"/>">尾页</a>
</ww:if>
<ww:else>尾页</ww:else>
<br>
总共<ww:property value="#pg.totalPages"/>页，当前第<ww:property value="#pg.currentPage"/>页
</div>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.1.1//EN" "http://www.opensymphony.com/xwork/xwork-1.1.1.dtd">

<xwork>
    <include file="webwork-default.xml"></include>
    
    <package name="book" extends="webwork-default" namespace="/book">
        <action name="browsecatalog" class="cn.gth.test.view.BookController">
            <result name="success">/browsecatalog.jsp</result>
        </action>
        
        <action name="browsebook" class="cn.gth.test.view.BookController" method="browseBook">
            <result name="success">/browsebook.jsp</result>
            <result name="error">/error.jsp</result>
        </action>
    </package>

</xwork>

package cn.gth.test.view;

import java.util.List;
import java.util.Map;

import cn.gth.test.common.Pager;
import cn.gth.test.dao.IBookDao;
import cn.gth.test.dao.ICatalogDao;

import com.opensymphony.xwork.ActionContext;
import com.opensymphony.xwork.ActionSupport;

@SuppressWarnings("serial")
public class BookController extends ActionSupport {
    private ICatalogDao catalogDaoImp;
    private IBookDao bookDaoImp;
    private Long catalogid;
    private int currentPage = 1;
    
    public ICatalogDao getCatalogDaoImp() {
        return catalogDaoImp;
    }

    public void setCatalogDaoImp(ICatalogDao catalogDaoImp) {
        this.catalogDaoImp = catalogDaoImp;
    }

    public IBookDao getBookDaoImp() {
        return bookDaoImp;
    }

    public void setBookDaoImp(IBookDao bookDaoImp) {
        this.bookDaoImp = bookDaoImp;
    }

    public Long getCatalogid() {
        return catalogid;
    }

    public void setCatalogid(Long catalogid) {
        this.catalogid = catalogid;
    }

    public int getCurrentPage() {
        return currentPage;
    }

    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }

    @SuppressWarnings("unchecked")
    @Override
    public String execute() throws Exception {
        List catalogs = catalogDaoImp.getAllCatalogs();
        Map requ = (Map)ActionContext.getContext().get("request");
        requ.put("cats", catalogs);
        return SUCCESS;
    }

    @SuppressWarnings("unchecked")
    public String browseBook() throws Exception {
        if (catalogid != null) { 
            int totalSize = bookDaoImp.getTotalByCatalogid(catalogid);
            Pager pager = new Pager(5,currentPage,totalSize);
            List books = bookDaoImp.getBookByCatalogid(catalogid, currentPage, pager.getPageSize());
            Map requ = (Map)ActionContext.getContext().get("request");
            requ.put("books", books);
            requ.put("pager", pager);
            this.setCurrentPage(1);
            return SUCCESS;
        }
        return ERROR;
    }
}