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jsp查詢實現分頁

實現一：

<% @page?contentType = " text/html;charset=gb2312 " %>

<% @page?import = " java.sql.* " %>

< HTML >< BODY >

Connection?conn? = ? null ;

Statement?stmt? = ? null ;

ResultSet?rs? = ? null ;

String ?strSQL? = ? "" ;

int ?PageSize? = ? 5 ;

int ?Page? = ? 1 ;

int ?totalPage? = ? 1 ;

int ?totalrecord? = ? 0 ;

try{

?Class.forName( " sun.jdbc.odbc.JdbcOdbcDriver " );

}

catch(ClassNotFoundException?ce){

?out.println(ce.getMessage());

}

try{

?conn = DriverManager.getConnection( " jdbc:odbc:grade " );

?stmt = conn.createStatement(

??ResultSet.TYPE_SCROLL_INSENSITIVE,

??ResultSet.CONCUR_READ_ONLY);

? // 算出總行數

?strSQL? = ? " SELECT?count(*)?as?recordcount?FROM?grade " ;

?rs? = ?stmt.executeQuery(strSQL);

? if ?(rs.next())?totalrecord? = ?rs.getInt( " recordcount " );

? // 輸出記錄

?strSQL? = ? " SELECT?*?FROM?grade " ;

????rs? = ?stmt.executeQuery(strSQL);

? if (totalrecord?%?PageSize? == 0 ) // ?如果是當前頁碼的整數倍

??totalPage? = ?totalrecord? / ?PageSize;?

? else ?? // ?如果最后還空余一頁

??totalPage? = ?( int )?Math.floor(?totalrecord? / ?PageSize?)? + ? 1 ;?

? if (totalPage? == ? 0 )?totalPage? = ? 1 ;

? if (request.getParameter( " Page " ) == null ?||?request.getParameter( " Page " ).equals( "" ))

??Page? = ? 1 ;

? else

?try?{

??Page? = ? Integer .parseInt(request.getParameter( " Page " ));

????catch(java.lang.NumberFormatException?e){

?? // ?捕獲用戶從瀏覽器地址攔直接輸入Page = sdfsdfsdf所造成的異常

??Page? = ? 1 ;

? if (Page? < ? 1 )??Page? = ? 1 ;

? if (Page? > ?totalPage)?Page? = ?totalPage;

?rs.absolute((Page - 1 )? * ?PageSize? + ? 1 );

?out.print( " <TABLE?BORDER='1'> " );

? for ( int ?iPage = 1 ;?iPage <= PageSize;?iPage ++ )

??out.print( " <TR><TD> " + rs.getString( " 學號 " ) + " </TD> " );

??out.print( " <TD> " + rs.getString( " 姓名 " ) + " </TD> " );

??out.print( " <TD> " + rs.getString( " 語文 " ) + " </TD> " );

??out.print( " <TD> " + rs.getString( " 數學 " ) + " </TD> " );

??out.print( " <TD> " + rs.getString( " 英語 " ) + " </TD></TR> " );

?? if (!rs.next())?break;

?out.print( " </TABLE> " );

}

catch(SQLException?e){

?System.out.println(e.getMessage());

}

finally{

?stmt.close();

?conn.close();

}

< FORM? Action ="7-09.jsp" ?Method ="GET" >

<% ?

??? if (Page?! = ? 1 )?{

??????out.print( " ???<A?HREF=7-09.jsp?Page=1>第一頁</A> " );

??????out.print( " ???<A?HREF=7-09.jsp?Page= " ? + ?(Page - 1 )? + ? " >上一頁</A> " );

???}

??? if (Page?! = ?totalPage)?{

??????out.print( " ???<A?HREF=7-09.jsp?Page= " ? + ?(Page + 1 )? + ? " >下一頁</A> " );

??????out.print( " ???<A?HREF=7-09.jsp?Page= " ? + ?totalPage? + ? " >最后一頁</A> " );

???}

< BR > 輸入頁數： < input? TYPE ="TEXT" ?Name ="Page" ?SIZE ="3" > ?

頁數: < font? COLOR ="Red" > <% = Page %> / <% = totalPage %> </ font > ?

</ FORM >

實現二：

<% @page?contentType = " text/html;charset=gb2312 " %>

<% @page?import = " java.sql.* " %>

< HTML >< BODY >

Connection?conn? = ? null ;

Statement?stmt? = ? null ;

ResultSet?rs? = ? null ;

String ?strSQL? = ? "" ;

int ?PageSize? = ? 5 ;

int ?Page? = ? 1 ;

int ?totalPage? = ? 1 ;

int ?totalrecord? = ? 0 ;

try{

?Class.forName( " sun.jdbc.odbc.JdbcOdbcDriver " );

}

catch(ClassNotFoundException?ce){

?out.println(ce.getMessage());

}

try{

?conn = DriverManager.getConnection( " jdbc:odbc:grade " );

?stmt = conn.createStatement(

??ResultSet.TYPE_SCROLL_INSENSITIVE,

??ResultSet.CONCUR_READ_ONLY);

? // 算出總行數

?strSQL? = ? " SELECT?count(*)?as?recordcount?FROM?grade " ;

?rs? = ?stmt.executeQuery(strSQL);

? if ?(rs.next())?totalrecord? = ?rs.getInt( " recordcount " );

? // 輸出記錄

?strSQL? = ? " SELECT?*?FROM?grade " ;

????rs? = ?stmt.executeQuery(strSQL);

? if (totalrecord?%?PageSize? == 0 ) // ?如果是當前頁碼的整數倍

??totalPage? = ?totalrecord? / ?PageSize;?

? else ?? // ?如果最后還空余一頁

??totalPage? = ?( int )?Math.floor(?totalrecord? / ?PageSize?)? + ? 1 ;?

? if (totalPage? == ? 0 )?totalPage? = ? 1 ;

? if (request.getParameter( " Page " ) == null ?||?request.getParameter( " Page " ).equals( "" ))

??Page? = ? 1 ;

? else

?try?{

??Page? = ? Integer .parseInt(request.getParameter( " Page " ));

????catch(java.lang.NumberFormatException?e){

?? // ?捕獲用戶從瀏覽器地址攔直接輸入Page = sdfsdfsdf所造成的異常

??Page? = ? 1 ;

? if (Page? < ? 1 )??Page? = ? 1 ;

? if (Page? > ?totalPage)?Page? = ?totalPage;

?rs.absolute((Page - 1 )? * ?PageSize? + ? 1 );

?out.print( " <TABLE?BORDER='1'> " );

? for ( int ?iPage = 1 ;?iPage <= PageSize;?iPage ++ )

??out.print( " <TR><TD> " + rs.getString( " 學號 " ) + " </TD> " );

??out.print( " <TD><A?HREF='view.jsp?id= " + rs.getString( " 學號 " ) + " '> " +

???rs.getString( " 姓名 " ) + " </A></TD> " );

??out.print( " <TD> " + rs.getString( " 語文 " ) + " </TD> " );

??out.print( " <TD> " + rs.getString( " 數學 " ) + " </TD> " );

??out.print( " <TD> " + rs.getString( " 英語 " ) + " </TD></TR> " );

?? if (!rs.next())?break;

?out.print( " </TABLE> " );

}

catch(SQLException?e){

?System.out.println(e.getMessage());

}

finally{

?stmt.close();

?conn.close();

}

< FORM? Action ="7-10.jsp" ?Method ="GET" >

<% ?

??? if (Page?! = ? 1 )?{

??????out.print( " ???<A?HREF=7-10.jsp?Page=1>第一頁</A> " );

??????out.print( " ???<A?HREF=7-10.jsp?Page= " ? + ?(Page - 1 )? + ? " >上一頁</A> " );

???}

??? if (Page?! = ?totalPage)?{

??????out.print( " ???<A?HREF=7-10.jsp?Page= " ? + ?(Page + 1 )? + ? " >下一頁</A> " );

??????out.print( " ???<A?HREF=7-10.jsp?Page= " ? + ?totalPage? + ? " >最后一頁</A> " );

???}

< BR > 輸入頁數： < input? TYPE ="TEXT" ?Name ="Page" ?SIZE ="3" > ?

頁數: < font? COLOR ="Red" > <% = Page %> / <% = totalPage %> </ font > ?

</ FORM >

posted on 2006-04-25 20:15 溫柔一刀閱讀(319) 評論(0) 編輯收藏所屬分類: java相關

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