配置 WEBUTIL 后 Oracle Form 冻结

我正在使用 Oracle Forms 10g。它是基于 Web 的 Oracle 表单应用程序。我想从 Oracle Forms 10g 生成 Excel 报告。我配置了 WEBUTIL 并使用 CLIENT_OLE2 包。在触发器 WHEN-BUTTON-PRESSED 中声明的过程。当按下按钮时，表格突然冻结，他们无法执行任何操作。退出按钮和菜单选项停止工作。它不给出任何消息，也不执行任何操作。

程序代码：

declare
 application client_ole2.obj_type;
 workbooks client_ole2.obj_type;
 workbook client_ole2.obj_type;
 worksheets client_ole2.obj_type;
 worksheet client_ole2.obj_type;
 cell client_ole2.obj_type;
 arglist client_ole2.list_type;
 row_num number;
 col_num number;
 fontObj client_ole2.obj_type;

cursor rec is SELECT so.descr saleorgdescr,ih.invdate invdatemaster, ih.docNUM docnum,
   TO_CHAR(ih.invdate,'mon-yyyy') invmonth
FROM ARMINVHEAD ih, SDMSALEORG so
WHERE
ih.status='69'
AND  TO_DATE(ih.INVDATE,'DD-MM-RRRR')
BETWEEN
                   TO_DATE('01-01-2008','DD-MM-RRRR') 
              AND  
                   TO_DATE('01-01-2009','DD-MM-RRRR')
order by IH.INVDATE, ih.docnum;

procedure SetCellValue(rowid number,colid number,cellValue varchar) is
 begin
 arglist := client_ole2.create_arglist;
 client_ole2.add_arg(arglist,rowid);
 client_ole2.add_arg(arglist,colid);
 cell:= client_ole2.get_obj_property(worksheet,'Cells',arglist);
 fontObj := client_ole2.get_obj_property(cell,'Font');
 client_ole2.destroy_arglist(arglist);
 client_ole2.set_property(cell,'value',cellValue);
 client_ole2.set_property(fontObj,'Size',16);
 client_ole2.set_property(fontObj,'BOLD',1);
 client_ole2.set_property(fontObj,'ColorIndex',7);
 client_ole2.release_obj(cell);
end SetCellValue;

procedure app_init is
 begin
 application := client_ole2.create_obj('Excel.Application');
 client_ole2.set_property(application,'Visible',true);
 workbooks := client_ole2.get_obj_property(application,'workbooks');
 workbook := client_ole2.Get_Obj_Property(workbooks,'add');
 worksheets := client_ole2.get_obj_property(application,'worksheets');
 worksheet := client_ole2.Get_Obj_Property(worksheets,'add');
 client_ole2.set_property(worksheet,'Name','Emp Sheet');
end app_init;

procedure save_excel(path varchar,filename varchar) is
 begin
 client_OLE2.Release_Obj(worksheet);
 client_OLE2.Release_Obj(worksheets);
 -- Save the Excel file created
 If path is not null then
   Arglist := client_OLE2.Create_Arglist;
   client_OLE2.Add_Arg(Arglist,path||'\'||file_name||'.xls');
   client_OLE2.Invoke(workbook, 'SaveAs', Arglist);
   client_OLE2.Destroy_Arglist(Arglist);
end if;
end save_excel;

begin
 app_init;
 row_num:=1;
 col_num:=1;
 SetCellValue(row_num,col_num,'saleorgdescr');
 col_num:=col_num + 1;
 SetCellValue(row_num,col_num,'invdatemaster');
 col_num:=col_num + 1;
 SetCellValue(row_num,col_num,'docnum');
 col_num:=col_num + 1;
 SetCellValue(row_num,col_num,'invmonth');
 for i in rec loop
 row_num:=row_num + 1;
 col_num:=1;
 SetCellValue(row_num,col_num,i.saleorgdescr);    
 col_num:=2;
 SetCellValue(row_num,col_num,i.invdatemaster);    
 col_num:=3;
 SetCellValue(row_num,col_num,i.docnum);
 col_num:=4;
 SetCellValue(row_num,col_num,i.invmonth);   
end loop;    
save_excel('C:','emp_data');       
client_OLE2.Release_Obj(workbook);
client_OLE2.Release_Obj(workbooks);
client_OLE2.Release_Obj(application);
end;

您很可能缺少以下两组之一中列出的文件：

• frmwebutil.jar, jacob.jar( perhaps frmall_jinit.jar also ) 文件在 \forms\java 目录

or

• jacob-1.14.3-x86.dll, JNIsharedstubs.dll and d2kwut60.dll 文件在 C:\Program Files (x86)\Java\jre1.8.0_xxx\bin 目录

假设你的Oracle 融合中间件主页 is C:\ORACLE_10g。如果该目录中不存在它们，则手动将它们移动到那里就足够了。

• 此外，它们优选包含在CLASSPATH as CLASSPATH=C:\ORACLE_10g\forms\java\jacob.jar;C:\ORACLE_10g\forms\java\frmwebutil.jar;

and

• 编辑文件C:\Program Files (x86)\Java\jre1.8.0_xxx\lib\security\java.policy添加
  permission java.security.AllPermission;到文件底部
  就在最后一个带有分号的花括号之前};

就在 Forms 应用程序运行之前，Oracle 会提示您对这些文件进行签名。他们需要签署并检查always option.