struts分页怎么实现
来源:互联网 发布:avmoo最新域名2016 9 编辑:程序博客网 时间:2024/04/27 21:40
示例代码如下:
1.PageInfo类:定义分页信息。2.分页逻辑方法代码节选: 3。jsp页面的分页显示代码节选:
1.PageInfo类:定义分页信息。
/** *//******************program begin**************************/
package test;
import java.io.*;
public final class PaginationInfo
implements Serializable ...{
/** *//**页大小描述每页有多少行*/
private int pageSize = 20;
/** *//**是否有上一页*/
private boolean hasPrevious;
/** *//**是否有下一页*/
private boolean hasNext;
/** *//**总行数 */
private int total;
/** *//**总页数 */
private int totalPage;
/** *//**当前页码*/
private int currentPageNumber=1;
/** *//**跳转动作:1:首页;2:前一页;3:后一页;4:末页*/
private int jumpState;
public void setPageSize(int pageSize) ...{
this.pageSize = pageSize;
}
public int getPageSize() ...{
return pageSize;
}
public void setHasPrevious(boolean hasPrevious) ...{
this.hasPrevious = hasPrevious;
}
public boolean getHasPrevious() ...{
return hasPrevious;
}
public void setPreviousPageNumber(int previousPageNumber) ...{
this.previousPageNumber = previousPageNumber;
}
public int getPreviousPageNumber() ...{
return previousPageNumber;
}
public void setHasNext(boolean hasNext) ...{
this.hasNext = hasNext;
}
public boolean getHasNext() ...{
return hasNext;
}
public void setNextPageNumber(int nextPageNumber) ...{
this.nextPageNumber = nextPageNumber;
}
public int getNextPageNumber() ...{
return nextPageNumber;
}
public void setTotal(int total) ...{
this.total = total;
}
public int getTotal() ...{
return total;
}
public void setTotalPage(int totalPage) ...{
this.totalPage=totalPage;
}
public int getTotalPage() ...{
return totalPage;
}
public void setCurrentPageNumber(int currentPageNumber) ...{
this.currentPageNumber=currentPageNumber;
}
public int getCurrentPageNumber() ...{
return currentPageNumber;
}
public void setJumpState(int jumpState)...{
this.jumpState=jumpState;
}
public int getJumpState()...{
return jumpState;
}
}
package test;
import java.io.*;
public final class PaginationInfo
implements Serializable ...{
/** *//**页大小描述每页有多少行*/
private int pageSize = 20;
/** *//**是否有上一页*/
private boolean hasPrevious;
/** *//**是否有下一页*/
private boolean hasNext;
/** *//**总行数 */
private int total;
/** *//**总页数 */
private int totalPage;
/** *//**当前页码*/
private int currentPageNumber=1;
/** *//**跳转动作:1:首页;2:前一页;3:后一页;4:末页*/
private int jumpState;
public void setPageSize(int pageSize) ...{
this.pageSize = pageSize;
}
public int getPageSize() ...{
return pageSize;
}
public void setHasPrevious(boolean hasPrevious) ...{
this.hasPrevious = hasPrevious;
}
public boolean getHasPrevious() ...{
return hasPrevious;
}
public void setPreviousPageNumber(int previousPageNumber) ...{
this.previousPageNumber = previousPageNumber;
}
public int getPreviousPageNumber() ...{
return previousPageNumber;
}
public void setHasNext(boolean hasNext) ...{
this.hasNext = hasNext;
}
public boolean getHasNext() ...{
return hasNext;
}
public void setNextPageNumber(int nextPageNumber) ...{
this.nextPageNumber = nextPageNumber;
}
public int getNextPageNumber() ...{
return nextPageNumber;
}
public void setTotal(int total) ...{
this.total = total;
}
public int getTotal() ...{
return total;
}
public void setTotalPage(int totalPage) ...{
this.totalPage=totalPage;
}
public int getTotalPage() ...{
return totalPage;
}
public void setCurrentPageNumber(int currentPageNumber) ...{
this.currentPageNumber=currentPageNumber;
}
public int getCurrentPageNumber() ...{
return currentPageNumber;
}
public void setJumpState(int jumpState)...{
this.jumpState=jumpState;
}
public int getJumpState()...{
return jumpState;
}
}
public void setPageInfo(PaginationInfo paginationInfo) ...{
//跳转页
if (paginationInfo.getJumpState() == 1) ...{ //首页
paginationInfo.setCurrentPageNumber(1);
}
if (paginationInfo.getJumpState() == 2) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getCurrentPageNumber() -
1);
}
if (paginationInfo.getJumpState() == 3) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getCurrentPageNumber() +
1);
}
if (paginationInfo.getJumpState() == 4) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getTotalPage());
}
int totalPage = total / paginationInfo.getPageSize();
if (total % paginationInfo.getPageSize() > 0) ...{
paginationInfo.setTotalPage(totalPage + 1);
}
else ...{
paginationInfo.setTotalPage(totalPage);
}
if (paginationInfo.getCurrentPageNumber() <= 1) ...{
paginationInfo.setCurrentPageNumber(1);
paginationInfo.setHasPrevious(false);
paginationInfo.setHasNext(true);
}
else if (paginationInfo.getCurrentPageNumber() >=
paginationInfo.getTotalPage()) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getTotalPage());
paginationInfo.setHasNext(false);
paginationInfo.setHasPrevious(true);
}
else ...{
paginationInfo.setHasPrevious(true);
paginationInfo.setHasNext(true);
}
}
//跳转页
if (paginationInfo.getJumpState() == 1) ...{ //首页
paginationInfo.setCurrentPageNumber(1);
}
if (paginationInfo.getJumpState() == 2) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getCurrentPageNumber() -
1);
}
if (paginationInfo.getJumpState() == 3) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getCurrentPageNumber() +
1);
}
if (paginationInfo.getJumpState() == 4) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getTotalPage());
}
int totalPage = total / paginationInfo.getPageSize();
if (total % paginationInfo.getPageSize() > 0) ...{
paginationInfo.setTotalPage(totalPage + 1);
}
else ...{
paginationInfo.setTotalPage(totalPage);
}
if (paginationInfo.getCurrentPageNumber() <= 1) ...{
paginationInfo.setCurrentPageNumber(1);
paginationInfo.setHasPrevious(false);
paginationInfo.setHasNext(true);
}
else if (paginationInfo.getCurrentPageNumber() >=
paginationInfo.getTotalPage()) ...{
paginationInfo.setCurrentPageNumber(paginationInfo.getTotalPage());
paginationInfo.setHasNext(false);
paginationInfo.setHasPrevious(true);
}
else ...{
paginationInfo.setHasPrevious(true);
paginationInfo.setHasNext(true);
}
}
<logic:equal name="testForm" property="paginationInfo.currentPageNumber" value="1">
<td align="right" width="30" height="22"><img src="images/pages/distop.gif" alt="首页" border="0"></td>
<td align="right" width="30" height="22"><img src="images/pages/disprevious.gif" alt="上一页" border="0" ></td>
</logic:equal>
<logic:greaterThan name="testForm" property="paginationInfo.currentPageNumber" value="1">
<td align="right" width="30" height="22"><a href="javascript:gotoPage(1)"><img src="images/pages/top.gif" alt="首页" border="0" ></a></td>
<td align="right" width="30" height="22"><a href="javascript:gotoPage(2)"><img src="images/pages/previous.gif" alt="上一页" border="0"></a></td>
</logic:greaterThan>
<logic:equal name="testForm" property="paginationInfo.hasNext" value="false">
<td align="right" width="30" height="22"><img src="images/pages/disnext.gif" alt="下一页" border="0" ></td>
<td align="right" width="30" height="22"><img src="images/pages/disbottom.gif" alt="末页" border="0" ></td>
</logic:equal>
<logic:equal name="testForm" property="paginationInfo.hasNext" value="true">
<td align="right" width="30" height="22"><a href="javascript:gotoPage(3)"><img src="images/pages/next.gif" alt="下一页" border="0" ></a></td>
<td align="right" width="30" height="22"><a href="javascript:gotoPage(4)"><img src="images/pages/bottom.gif" alt="末页" border="0"></a></td>
</logic:equal>
<html:hidden name="testForm" property="paginationInfo.jumpState">
...//省略
<td align="right" width="30" height="22"><img src="images/pages/distop.gif" alt="首页" border="0"></td>
<td align="right" width="30" height="22"><img src="images/pages/disprevious.gif" alt="上一页" border="0" ></td>
</logic:equal>
<logic:greaterThan name="testForm" property="paginationInfo.currentPageNumber" value="1">
<td align="right" width="30" height="22"><a href="javascript:gotoPage(1)"><img src="images/pages/top.gif" alt="首页" border="0" ></a></td>
<td align="right" width="30" height="22"><a href="javascript:gotoPage(2)"><img src="images/pages/previous.gif" alt="上一页" border="0"></a></td>
</logic:greaterThan>
<logic:equal name="testForm" property="paginationInfo.hasNext" value="false">
<td align="right" width="30" height="22"><img src="images/pages/disnext.gif" alt="下一页" border="0" ></td>
<td align="right" width="30" height="22"><img src="images/pages/disbottom.gif" alt="末页" border="0" ></td>
</logic:equal>
<logic:equal name="testForm" property="paginationInfo.hasNext" value="true">
<td align="right" width="30" height="22"><a href="javascript:gotoPage(3)"><img src="images/pages/next.gif" alt="下一页" border="0" ></a></td>
<td align="right" width="30" height="22"><a href="javascript:gotoPage(4)"><img src="images/pages/bottom.gif" alt="末页" border="0"></a></td>
</logic:equal>
<html:hidden name="testForm" property="paginationInfo.jumpState">
...//省略
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