为什么我的分页不能运行??
我作了一个struts的分页程序,可以显示第一页和 "下一页 "链接,可是在点击 "下一页 "运行时就出差了,调试发现是页面的数据没有传回Action,请问各们大虾这是怎么回事,小弟我弄了好久了呀.....
源码如下:
数据库mysql:
create   table   book(name   varchar(50),   author   varchar(30),   price   int);
bean:(其中PageBean用于处理分页)
Book.java
public   class   Book   {
private   String   bookName;
private   String   author;
private   int   price;
public   String   getAuthor()   {
return   author;
}
public   void   setAuthor(String   author)   {
this.author   =   author;
}
public   String   getBookName()   {
return   bookName;
}
public   void   setBookName(String   bookName)   {
this.bookName   =   bookName;
}
public   int   getPrice()   {
return   price;
}
public   void   setPrice(int   price)   {
this.price   =   price;
}
}
PageBean.java
import   java.sql.SQLException;
import   java.util.ArrayList;
public   class   PageBean   {
private   static   int   record   =   5;
private   int   currentPage   =   1;
private   int   totalPages   =   0;
private   int   totalRecords   =   0;
private   int   pageStart   =   0;
private   int   pageEnd   =   0;
private   boolean   hasNext   =   false;
private   boolean   hasPrev   =   false;
private   static   ArrayList   list;
public   PageBean()   {
}
public   PageBean(ArrayList   list)   {
this.list   =   list;
totalRecords   =   list.size();
setCurrentPage(1);
setTotalPages();
setPageStart();
setPageEnd();
setHasNext(true);
}
public   Book[]   getPreviousPage()   {
if   (currentPage   <   totalPages)   {
hasNext   =   true;
}   else
hasNext   =   false;
currentPage   -=   1;
if   (currentPage   <=   0)   {
currentPage   =   1;
hasPrev   =   false;
}   else
hasPrev   =   true;
pageStart   =   (currentPage   -   1)   *   record   +   1;
pageEnd   =   pageStart   +   record   -   1;
return   getBooks();
}
public   Book[]   getNextpage()   {
if   (currentPage   -   1   >   0)   {
hasPrev   =   true;
}   else
hasPrev   =   false;
currentPage   +=   1;
if   (currentPage   >   totalPages)   {
currentPage   =   totalPages;
hasNext   =   false;
}   else   {
hasNext   =   true;
pageStart   =   (currentPage   -   1)   *   record   +   1;
if   (currentPage   ==   totalPages)   {
pageEnd   =   totalRecords;
}   else   {
pageEnd   =   pageStart   +   record   - &n