如何用java实现分页效果（eclipse工具）

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刘天明aP
推荐于2016-01-19 · TA获得超过263个赞

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package dl.wsxx.base;
public class Pager {
    private int totalRows; // 总行数
    private int pageSize; // 每页显示的行数
    private int currentPage; // 当前页号
    private int totalPages; // 总页数
    private int startRow; // 当前页在数据库中的起始行
    private int pageStartRow; // 当前页开始行
    private int pageEndRow; // 当前页结束行
    private int hasNextPage; // 下一页存在标识[0:不存在，1:存在]
    private int hasPreviousPage; // 前一页存在标识[0:不存在，1:存在]
    public Pager() {
    }
                                                                                                                
    public Pager(int _totalRows,int _pageSize) {
        pageSize = _pageSize;
        totalRows = _totalRows;
        totalPages = totalRows / pageSize;
        int mod = totalRows % pageSize;
        if (mod > 0) {
            totalPages++;
        }
        currentPage = 1;
        startRow = 0;
    }
    public int getStartRow() {
        return startRow;
    }
    public int getpageStartRow() {
        return pageStartRow;
    }
    public int getpageEndRow() {
        return pageEndRow;
    }
    public int getTotalPages() {
        return totalPages;
    }
    public int getCurrentPage() {
        return currentPage;
    }
    public int getPageSize() {
        return pageSize;
    }
    public int getHasNextPage() {
        return hasNextPage;
    }
    public int getHasPreviousPage() {
        return hasPreviousPage;
    }
    public void setTotalRows(int totalRows) {
        this.totalRows = totalRows;
    }
    public void setStartRow(int startRow) {
        this.startRow = startRow;
    }
    public void setPageStartRow(int pageStartRow) {
        this.pageStartRow = pageStartRow;
    }
    public void setPageEndRow(int pageEndRow) {
        this.pageEndRow = pageEndRow;
    }
    public void setTotalPages(int totalPages) {
        this.totalPages = totalPages;
    }
    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }
    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }
    public void setHasNextPage(int hasNextPage) {
        this.hasNextPage = hasNextPage;
    }
    public void setHasPreviousPage(int hasPreviousPage) {
        this.hasPreviousPage = hasPreviousPage;
    }
    public int getTotalRows() {
        return totalRows;
    }
    public void first() {
        currentPage = 1;
        startRow = 0;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void previous() {
        if (currentPage == 1) {
            return;
        }
        currentPage--;
        startRow = (currentPage - 1) * pageSize;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void next() {
        if (currentPage < totalPages) {
            currentPage++;
        }
        startRow = (currentPage - 1) * pageSize;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void last() {
        currentPage = totalPages;
        startRow = (currentPage - 1) * pageSize;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void refresh(int _currentPage) {
        currentPage = _currentPage;
        if (currentPage > totalPages) {
            last();
        }
        this.hasFlagSet(currentPage, totalPages);
    }
    private void hasFlagSet(int currentPage, int totalPages) {
        if (currentPage == totalPages) {
            if (currentPage == 1) {
                this.hasPreviousPage = 0;
                this.hasNextPage = 0;
            } else {
                this.hasPreviousPage = 1;
                this.hasNextPage = 0;
            }
        } else {
            if (currentPage == 1) {
                this.hasPreviousPage = 0;
                this.hasNextPage = 1;
            } else {
                this.hasPreviousPage = 1;
                this.hasNextPage = 1;
            }
        }
    }
}

这是我的工程里的分页核心代码，希望对你有用，还有ssh分页文档，可以参照研究一下。

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育知同创教育
2016-02-22 · 百度知道合伙人官方认证企业

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用java实现翻页代码跟eclipse没有关系。
参考代码如下：
<head>
<%
const MaxPerPage=20
dim sql
dim rs
dim totalPut
dim CurrentPage
dim TotalPages
dim i,j
%>
</head>
<body>
<%
conn = "DBQ=" + server.mappath("wj028.mdb") + ";DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)};"
sql = "SELECT * FROM USER order by id desc"
set rs=server.createobject("adodb.recordset")
rs.open SQL,conn,1,1
rs.MoveFirst
rs.pagesize=MaxPerPage
howmanyfields=rs.Fields.Count-1

If trim(Request("Page"))<>"" then
CurrentPage= CLng(request("Page"))
If CurrentPage> rs.PageCount then
CurrentPage = rs.PageCount
End If
Else
CurrentPage= 1
End If

if rs.eof then
response.write "没有记录!"
else
totalPut=rs.recordcount
if CurrentPage<>1 then
if (currentPage-1)*MaxPerPage<totalPut then
rs.move(currentPage-1)*MaxPerPage
dim bookmark
bookmark=rs.bookmark
end if
end if

dim n,k
if (totalPut mod MaxPerPage)=0 then
n= totalPut \ MaxPerPage
else
n= totalPut \ MaxPerPage + 1
end if%>
<% i=0
do while not rs.EOF and i<maxperpage
%>
<%
rs.movenext
i=i+1
loop
%>
第<%=currentpage%>页
共<%=n%>页
<%
k=currentpage
if k<>1 then
response.write "["+"<a href='list.asp?page=1'>首页</a>]"
response.write "["+"<a href='list.asp?page="+cstr(k-1)+"'>上一页</a>]"
else
Response.Write "[首页][上一页]"
end if
if k<>n then
response.write "["+"<a href='list.asp?page="+cstr(k+1)+"'>下一页</a>] "
response.write "["+"<a href='list.asp?page="+cstr(n)+"'>尾页</a>] "
else
Response.Write "[下一页][尾页]"
end if
%>
<%
end if
set rs=nothing
set conn=nothing
%>
</body>

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bill_cool2008
2013-04-24 · TA获得超过495个赞

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分页无非就那几个参数，每页显示数、当前页、总数据量，然后根据公式去算把，很简单。稍微复杂一点的是根据条件查询，查询的结果分页，不过你思路对了也没问题

追问

你有没有代码，我这些都不太懂啊，最好有注释

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硪丨暧恋
推荐于2018-03-29 · TA获得超过8980个赞

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这个跟eclipse没关系，参考代码：

package dl.wsxx.base;
public class Pager {
    private int totalRows; // 总行数
    private int pageSize; // 每页显示的行数
    private int currentPage; // 当前页号
    private int totalPages; // 总页数
    private int startRow; // 当前页在数据库中的起始行
    private int pageStartRow; // 当前页开始行
    private int pageEndRow; // 当前页结束行
    private int hasNextPage; // 下一页存在标识[0:不存在，1:存在]
    private int hasPreviousPage; // 前一页存在标识[0:不存在，1:存在]
    public Pager() {
    }
                                                                                                                 
    public Pager(int _totalRows,int _pageSize) {
        pageSize = _pageSize;
        totalRows = _totalRows;
        totalPages = totalRows / pageSize;
        int mod = totalRows % pageSize;
        if (mod > 0) {
            totalPages++;
        }
        currentPage = 1;
        startRow = 0;
    }
    public int getStartRow() {
        return startRow;
    }
    public int getpageStartRow() {
        return pageStartRow;
    }
    public int getpageEndRow() {
        return pageEndRow;
    }
    public int getTotalPages() {
        return totalPages;
    }
    public int getCurrentPage() {
        return currentPage;
    }
    public int getPageSize() {
        return pageSize;
    }
    public int getHasNextPage() {
        return hasNextPage;
    }
    public int getHasPreviousPage() {
        return hasPreviousPage;
    }
    public void setTotalRows(int totalRows) {
        this.totalRows = totalRows;
    }
    public void setStartRow(int startRow) {
        this.startRow = startRow;
    }
    public void setPageStartRow(int pageStartRow) {
        this.pageStartRow = pageStartRow;
    }
    public void setPageEndRow(int pageEndRow) {
        this.pageEndRow = pageEndRow;
    }
    public void setTotalPages(int totalPages) {
        this.totalPages = totalPages;
    }
    public void setCurrentPage(int currentPage) {
        this.currentPage = currentPage;
    }
    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }
    public void setHasNextPage(int hasNextPage) {
        this.hasNextPage = hasNextPage;
    }
    public void setHasPreviousPage(int hasPreviousPage) {
        this.hasPreviousPage = hasPreviousPage;
    }
    public int getTotalRows() {
        return totalRows;
    }
    public void first() {
        currentPage = 1;
        startRow = 0;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void previous() {
        if (currentPage == 1) {
            return;
        }
        currentPage--;
        startRow = (currentPage - 1) * pageSize;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void next() {
        if (currentPage < totalPages) {
            currentPage++;
        }
        startRow = (currentPage - 1) * pageSize;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void last() {
        currentPage = totalPages;
        startRow = (currentPage - 1) * pageSize;
        pageStartRow = startRow + 1;
        this.hasFlagSet(currentPage, totalPages);
        if (this.hasNextPage == 0) {
            pageEndRow = totalRows;
        } else {
            pageEndRow = startRow + pageSize;
        }
    }
    public void refresh(int _currentPage) {
        currentPage = _currentPage;
        if (currentPage > totalPages) {
            last();
        }
        this.hasFlagSet(currentPage, totalPages);
    }
    private void hasFlagSet(int currentPage, int totalPages) {
        if (currentPage == totalPages) {
            if (currentPage == 1) {
                this.hasPreviousPage = 0;
                this.hasNextPage = 0;
            } else {
                this.hasPreviousPage = 1;
                this.hasNextPage = 0;
            }
        } else {
            if (currentPage == 1) {
                this.hasPreviousPage = 0;
                this.hasNextPage = 1;
            } else {
                this.hasPreviousPage = 1;
                this.hasNextPage = 1;
            }
        }
    }
}

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2013-04-24

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