本文介绍了一个关于Internet Explorer浏览器打印时出现的垂直居中问题及解决方案。通过特定的HTML头部和尾部设置，可以确保文档在IE中打印时不会发生不期望的垂直居中现象，并能正确分页。
ie打印第一页时候常常会垂直居中，用下面的代码分页也正常了
String HTML_HEADER
=
""
; HTML_HEADER
=
HTML_HEADER
+
"
<html>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<head>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<title></title>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<meta http-equiv=\
"
Content
-
Type\
"
content=\
"
text
/
html;charset
=
UTF
-
8
\
"
/>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<meta http-equiv=\
"
imagetoolbar\
"
content=\
"
no\
"
>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<style type=\
"
text
/
css\
"
>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
a{text-decoration:none}\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
</style>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
</head>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<body text=\
"
#
000000
\
"
link=\
"
#
000000
\
"
alink=\
"
#
000000
\
"
vlink=\
"
#
000000
\
"
>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<table width=\
"
100
%
\
"
cellpadding=\
"
0
\
"
cellspacing=\
"
0
\
"
border=\
"
0
\
"
>\n
"
; HTML_HEADER
=
HTML_HEADER
+
"
<tr><td width=\
"
50
%
\
"
> </td><td align=\
"
center\
"
valign=\
"
top\
"
>\n
"
; exporter.setParameter(JRHtmlExporterParameter.HTML_HEADER, HTML_HEADER); String HTML_FOOTER
=
""
; HTML_FOOTER
+=
"
</td><td width=\
"
50
%
\
"
> </td></tr>\n
"
; HTML_FOOTER
+=
"
</table>\n
"
; HTML_FOOTER
+=
"
</body>\n
"
; HTML_FOOTER
+=
"
</html>\n
"
; exporter.setParameter(JRHtmlExporterParameter.HTML_FOOTER, HTML_FOOTER);
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