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一段下載功能的代碼

系統 1683 0
public ?ActionForward?download(ActionMapping?mapping,?ActionForm?form,
????????????HttpServletRequest?request,?HttpServletResponse?response)
????????????
throws ?Exception? ... {
????????
this .initActionAttributes(request);
????????
// System.out.println(uploadForm.getFile().getFileName()+"--size?is?--"+uploadForm.getFile().getFileSize());
????????String?tables = new ?String(request.getParameter( " TABLE_NAME " ).getBytes( " ISO8859_1 " ));
????????String?table
= new ?String(request.getParameter( " TABLE " ).getBytes( " ISO8859_1 " ));
????????String?con
= new ?String(request.getParameter( " SQL_COND " ).getBytes( " ISO8859_1 " ));
????????String?col
= new ?String(request.getParameter( " TITLE_CODE " ).getBytes( " ISO8859_1 " ));
????????String?colName
= new ?String(request.getParameter( " TITLE_NAME " ).getBytes( " ISO8859_1 " ));
????????String?rowNum
= new ?String(request.getParameter( " ROW_NUM " ).getBytes( " ISO8859_1 " ));
????????String[]?columnName?
= ?colName.split( " , " );
????????StringBuffer?sb
= new ?StringBuffer();
????????sb.append(
" select? " ).append(col).append( " ?from? " ).append(tables).append( " ?where? " ).append(con).append( " ?order?by?(cust.BUSY_IN_CALL_DURATION?+?cust.IDLE_IN_CALL_DURATION)?desc?fetch?first? " + rowNum + " ?rows?only " );
????????StringBuffer?updateSql
= new ?StringBuffer();
????????updateSql.append(
" update? " ).append(table).append( " ?set?DOWNLOAD_MARK=1,DOWNLOAD_TIME=current?Date?where?comp_product_no?in(select?cust.comp_product_no?from?DMCF_cust_ms?cust " ).append( " ?where? " ).append(con).append( " ?order?by?(cust.BUSY_IN_CALL_DURATION?+?cust.IDLE_IN_CALL_DURATION)?desc?fetch?first? " + rowNum + " ?rows?only) " );
????????String?fileName?
= ? " CustInfo " ? +
????????
new ?SimpleDateFormat( " yyyyMMddHHmmss " ).format( new ????java.util.Date())? + ? " .csv " ;
?????????PrintWriter?pw?
= ? null ;
?????????Sqlca?m_Sql?
= ? null ;
// ???????保存到客戶機上
?????????response.setContentType( " application/octet-stream;?charset=gbk " );
?????????response.setHeader(
" Content-disposition " ,? " attachment;?filename=" " ? + ?fileName? + ? " " " );
?????????PrintWriter?out1?
= ? null ;
?????????
try ? ... {

?????????????pw?
= ? new ?PrintWriter( new ?FileOutputStream(fileName));
?????????????out1?
= ?response.getWriter();
?????????????
// 標題vector
?????????????Vector?titleVector? = ? new ?Vector();
?????????????
for ?( int ?i? = ? 0 ;?i? < ?columnName.length;?i ++ )? ... {
?????????????????titleVector.add(columnName[i]);
?????????????}

?????????????
for ?( int ?j? = ? 0 ;?j? < ?titleVector.size();?j ++ )? ... {
?????????????????out1.print(
new ?String(String.valueOf(titleVector.elementAt(j)).getBytes( " gbk " )));
?????????????????
if ?(j? == ?titleVector.size()? - ? 1 )
?????????????????????out1.println();
?????????????????
else
?????????????????????out1.print(
" , " );
?????????????????out1.flush();
?????????????}

?????????????
?????????????m_Sql?
= ? new ?Sqlca( new ?ConnectionEx(Const.DATASOURCE));

?????????????m_Sql.execute(sb.toString());
?????????????String?tmpStr;
?????????????
while ?(m_Sql.next())? ... {
?????????????????
?????????????????
for ?( int ?j? = ? 1 ;?j? <= ?titleVector.size();?j ++ )? ... {
?????????????????????tmpStr?
= ? "" ? + ?m_Sql.getString(j);
?????????????????????out1.write(
new ?String(tmpStr.getBytes( " gbk " )));
?????????????????????
if ?(j? == ?titleVector.size())
?????????????????????????out1.println();
?????????????????????
else
?????????????????????????out1.print(
" , " );
?????????????????}

?????????????????out1.flush();
?????????????}

????????????m_Sql.execute(updateSql.toString());
????????????m_Sql.commit();
????????????
?????????}
? catch ?(Exception?exception)? ... {
?????????????m_Sql.rollback();
?????????????
if (m_Sql? != ? null )m_Sql.closeAll();
?????????????exception.printStackTrace();
?????????}
? finally ? ... {
?????????????
if (m_Sql? != ? null )m_Sql.closeAll();
?????????????
?????????}

????????
????????
return ?mapping.findForward( " initAction " );
????}
?

一段下載功能的代碼


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