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数据库输出HTML格式报表的测试简介2008-04-07当需要在数据库中开发输出HTML报表的时候, 我们可以在过程中直接使用htp包来实现html代码和对数据处理后的输出. 并输出为需要的格式(HTML标记语言来控制) . 以下提供一个直接从数据库生成HTML报表的测试例子, 需要根据自己的需要来进行修改或增加.

在使用前需要配置apache的连接, 这样在调用过程的时候, 系统直接将生成的html输出到WEB;

--配置apache连接:

如安装在D:systemhttps下,D:systemhttpsApachemodplsqlconfdads.conf文件. 设置为:

<Location /ss>
SetHandler pls_handler
Order deny,allow
Allow from all
AllowOverride None
PlsqlDatabaseUsername dinya
PlsqlDatabasePassword dinya
PlsqlDatabaseConnectString dinya:1521:ora10g
PlsqlAuthenticationMode Basic
</Location>

当然对数据库的连接必须有效, 具体请见相关的设置文档. 重起Apache服务.

--创建测试包:

create or replace package cux_html_report as
function t(p_size in number, p_content in varchar2) return varchar2 ;
type c_sql is ref cursor;

procedure main;
procedure html_header(p_title in varchar2);
procedure html_body(p_sql in varchar2,p_column_count in number,p_subtitle
in varchar2,p_align in varchar2,p_black in varchar2);
procedure html_tail;

procedure table_h(p_width in number,p_border in number,p_align in varchar2);
procedure table_t;
procedure tr_(p_col_count in number,p_column in varchar2,p_align in varchar2,
p_black in varchar2);
procedure tr_h;
procedure tr_t;
procedure td_(p_col_count in number,p_content in varchar2,p_align in varchar2,
p_black in varchar2);

procedure report_header(p_title in varchar2);
procedure report_subtitle(p_col_count in number,p_content in varchar2,p_align
in varchar2,p_black in varchar2);
procedure report_tail(p_content in varchar2);
end ;
/
create or replace package body cux_html_report as
function t(p_size in number, p_content in varchar2) return varchar2 as
i number:=0;
v_out varchar2(300):="";
p_cont varchar2(1000):=p_content;
begin
for ii in 1..p_size loop
select substr(p_cont,0,decode(instr(p_cont,";"),0,length(p_cont),instr(p_cont,";")-1))
into v_out from dual ;
p_cont:=substr(p_cont,instr(p_cont,";")+1);
i:=i+1;
if i=p_size then
return v_out;
end if;
end loop;
end ;

/*******************************************************************************
主程序
需要处理分页的问题
********************************************************************************/
procedure main as
begin
html_header("我的测试报表");
report_header("我的标题");
html_body("select t.owner||"";""||t.object_name||"";""||t.object_id||"";""|
|t.object_type||"";""||t.owner
from all_objects t
where t.owner=""DINYA""
and rownum<=100",5,"序号;对象名称;ID;类型","center","<b></b>");
report_tail("这里是报表尾");
html_tail;
end;

--页头,固定格式
procedure html_header(p_title in varchar2) as
begin
htp.p("
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>"||nvl(trim(p_title),"无标题文档")||"</title>
</head>
<body>");
end ;

--页体, 根据SQL程序和字段数,展示数据
procedure html_body(p_sql in varchar2,p_column_count in number,p_subtitle
in varchar2,p_align in varchar2,p_black in varchar2) as
i number:=0;
c c_sql;
v_column varchar2(4000);
begin
table_h(90,1,"center");
report_subtitle(p_column_count,p_subtitle,p_align,p_black);
open c for p_sql;
loop
fetch c into v_column;
exit when c%notfound;
i:=i+1;
tr_(p_column_count,v_column,"left","");
end loop;
table_t;
end ;

--页尾, 固定内容
procedure html_tail as
begin
htp.p("</body> </html>");
end ;


--------------------------------------------------------------------------------
--表头, 表的属性
procedure table_h(p_width in number,p_border in number,p_align in varchar2) as
begin
htp.p("<table width=""||p_width||"%" border=""||p_border||"
" align=""||p_align||"">");
end ;

--表尾
procedure table_t as
begin
htp.p("</table>");
end ;
--------------------------------------------------------------------------------


--表格行
--------------------------------------------------------------------------------
procedure tr_(p_col_count in number,p_column in varchar2,p_align in varchar2,
p_black in varchar2) as
begin
htp.p("<tr>");
td_(p_col_count,p_column,p_align,p_black);
htp.p("</tr>");
end;
procedure tr_h as
begin
htp.p("<tr>");
end ;
procedure tr_t as
begin
htp.p("</tr>");
end ;
-------------------------------------------------------------------------------



--表单元格
-------------------------------------------------------------------------------
procedure td_(p_col_count in number,p_content in varchar2,p_align in varchar2,
p_black in varchar2) as
v_cont varchar2(300):=p_content;
v_out varchar2(300):="";
begin
for i in 1..p_col_count loop
select substr(v_cont,0,decode(instr(v_cont,";"),0,length(v_cont),
instr(v_cont,";")-1))
into v_out from dual ;
htp.p("<td align=""||p_align||"">"||substr(p_black,1,3)||v_out|
|substr(p_black,4)||"</td>");
v_cont:=substr(v_cont,instr(v_cont,";")+1);
end loop;
end ;
------------------------------------------------------------------------------



--报表内容部分
-----------------------------------------------------------------------------
procedure report_header(p_title in varchar2) as
begin
table_h(90,0,"center");
tr_(1,p_title,"center","<b></b>");
table_t;
end ;

procedure report_subtitle(p_col_count in number,p_content in varchar2,
p_align in varchar2,p_black in varchar2) as
begin
tr_h;
td_(p_col_count,p_content,p_align,p_black);
tr_t;
end ;

procedure report_tail(p_content in varchar2) as
begin
table_h(90,0,"center");
tr_(1,p_content,"left","");
table_t;
end;
----------------------------------------------------------------------------------


end ;
/
SQL> @d:cux_html_report.pck
Package created.
Package body created.
SQL>

编译没有错误后, 使用http://dinya:7777/ss/cux_html_report.main 即可查看报表.

如果在main过程中使用owa_util.mime_header(ccontent_type => "application/vnd.ms-excel"); 可以直接将数据生成到Excel中.

如:

procedure main as
begin
owa_util.mime_header(ccontent_type => "application/vnd.ms-excel");
html_header("我的测试报表");

需要使用的话, 可以根据需要修改上面的程序.