📄 struts 2中的ognl - max on java - blogjava.mht
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=E4=B9=9F=E4=B8=8D=E9=9A=BE=E3=80=82=E4=B9=B1=E7=A0=81=E5=A4=9A=E6=95=B0=E6=
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=80=E4=BD=BF=E7=94=A8=E7=9A=84=E6=96=B9=E5=BC=8F=E4=B8=8D=E5=90=8C=E9=80=A0=
=E6=88=90=E7=9A=84=EF=BC=8C=E6=89=80=E4=BB=A5=E6=88=91=E5=BB=BA=E8=AE=AE=E5=
=A4=A7=E5=AE=B6=E5=B0=86=E7=BC=96=E7=A0=81=E6=96=B9=E5=BC=8F=E9=83=BD=E8=AE=
=BE=E4=B8=BA=E2=80=9Cutf-8=E2=80=9D=EF=BC=8C=E5=A6=82<SPAN=20
style=3D"BACKGROUND-COLOR: lightgrey"><%@ page =
language=3D"java"=20
contentType=3D"text/html; charset=3Dutf-8" pageEncoding=3D"utf-8"=20
%></SPAN>=E3=80=82=E5=8F=A6=E5=A4=96=EF=BC=8C=E5=9C=A8=E9=85=8D=E7=BD=AE=
web.xml=E6=97=B6=E4=BD=BF=E7=94=A8ActionContextCleanUp=E8=BF=87=E6=BB=A4=E5=
=99=A8=EF=BC=88Filter=EF=BC=89=EF=BC=8C=E5=A6=82=E4=B8=8B=E9=9D=A2=E4=BB=A3=
=E7=A0=81=E6=89=80=E7=A4=BA=EF=BC=9A</P>
<DIV=20
style=3D"BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; =
BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; =
PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; =
WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px =
solid; BACKGROUND-COLOR: #eeeeee"><SPAN=20
style=3D"COLOR: #0000ff"><?</SPAN><SPAN style=3D"COLOR: #ff00ff">xml=20
version=3D"1.0" encoding=3D"UTF-8"</SPAN><SPAN=20
style=3D"COLOR: #0000ff">?></SPAN><SPAN style=3D"COLOR: =
#000000"><BR></SPAN><SPAN=20
style=3D"COLOR: #0000ff"><</SPAN><SPAN style=3D"COLOR: =
#800000">web-app=20
</SPAN><SPAN style=3D"COLOR: #ff0000">id</SPAN><SPAN=20
style=3D"COLOR: #0000ff">=3D"WebApp_9"</SPAN><SPAN style=3D"COLOR: =
#ff0000">=20
version</SPAN><SPAN style=3D"COLOR: #0000ff">=3D"2.4"</SPAN><SPAN=20
style=3D"COLOR: #ff0000"><BR> xmlns</SPAN><SPAN=20
style=3D"COLOR: =
#0000ff">=3D"http://java.sun.com/xml/ns/j2ee"</SPAN><SPAN=20
style=3D"COLOR: #ff0000"><BR> xmlns:xsi</SPAN><SPAN=20
style=3D"COLOR: =
#0000ff">=3D"http://www.w3.org/2001/XMLSchema-instance"</SPAN><SPAN=20
style=3D"COLOR: #ff0000"><BR> =
xsi:schemaLocation</SPAN><SPAN=20
style=3D"COLOR: #0000ff">=3D"http://java.sun.com/xml/ns/j2ee=20
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">display-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000">Struts 2=20
OGNL</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">display-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
<BR> </SPAN><SPAN=20
style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN=20
style=3D"COLOR: #000000">struts-cleanup</SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-class</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
=20
org.apache.struts2.dispatcher.ActionContextCleanUp<BR> =
=20
</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-class</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
<BR> </SPAN><SPAN=20
style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-mapping</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN=20
style=3D"COLOR: #000000">struts-cleanup</SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">url-pattern</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000">/*</SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">url-pattern</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-mapping</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
<BR> </SPAN><SPAN=20
style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN=20
style=3D"COLOR: #000000">struts2</SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-class</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
=20
org.apache.struts2.dispatcher.FilterDispatcher<BR> =
=20
</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-class</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-mapping</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN=20
style=3D"COLOR: #000000">struts2</SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-name</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">url-pattern</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000">/*</SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">url-pattern</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">filter-mapping</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">welcome-file-list</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"><</SPAN><SPAN=20
style=3D"COLOR: #800000">welcome-file</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN=20
style=3D"COLOR: #000000">index.html</SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">welcome-file</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN style=3D"COLOR: =
#000000"><BR> =20
</SPAN><SPAN style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">welcome-file-list</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN><SPAN=20
style=3D"COLOR: #000000"><BR><BR></SPAN><SPAN=20
style=3D"COLOR: #0000ff"></</SPAN><SPAN=20
style=3D"COLOR: #800000">web-app</SPAN><SPAN=20
style=3D"COLOR: #0000ff">></SPAN></DIV><SPAN=20
style=3D"FONT-SIZE: smaller; FONT-STYLE: italic">=E6=B8=85=E5=8D=951=20
WebContent/WEB-INF/web.xml</SPAN>=20
<P>=E2=80=9C#=E2=80=9D=E4=B8=BB=E8=A6=81=E6=9C=89=E4=B8=89=E7=A7=8D=E7=94=
=A8=E9=80=94=EF=BC=9A</P>
<OL>
=
<LI>=E8=AE=BF=E9=97=AEOGNL=E4=B8=8A=E4=B8=8B=E6=96=87=E5=92=8CAction=E4=B8=
=8A=E4=B8=8B=E6=96=87=EF=BC=8C#=E7=9B=B8=E5=BD=93=E4=BA=8EActionContext.g=
etContext()=EF=BC=9B=E4=B8=8B=E8=A1=A8=E6=9C=89=E5=87=A0=E4=B8=AAActionCo=
ntext=E4=B8=AD=E6=9C=89=E7=94=A8=E7=9A=84=E5=B1=9E=E6=80=A7=EF=BC=9A=20
<TABLE style=3D"BORDER-TOP: #008000 2px solid; BORDER-BOTTOM: #008000 =
2px solid"=20
cellSpacing=3D0 cellPadding=3D2 border=3D0>
<TBODY>
<TR>
<TD=20
style=3D"FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; =
HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc"> =E5=90=8D=E7=A7=B0</TD>
<TD=20
style=3D"FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; =
HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">=E4=BD=9C=E7=94=A8</TD>
<TD=20
style=3D"FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; =
HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">=E4=BE=8B=E5=AD=90</TD></TR>
<TR>
<TD>parameters</TD>
=
<TD>=E5=8C=85=E5=90=AB=E5=BD=93=E5=89=8DHTTP=E8=AF=B7=E6=B1=82=E5=8F=82=E6=
=95=B0=E7=9A=84Map</TD>
=
<TD>#parameters.id[0]=E4=BD=9C=E7=94=A8=E7=9B=B8=E5=BD=93=E4=BA=8Erequest=
.getParameter("id")</TD></TR>
<TR>
<TD>request</TD>
=
<TD>=E5=8C=85=E5=90=AB=E5=BD=93=E5=89=8DHttpServletRequest=E7=9A=84=E5=B1=
=9E=E6=80=A7=EF=BC=88attribute)=E7=9A=84Map</TD>
=
<TD>#request.userName=E7=9B=B8=E5=BD=93=E4=BA=8Erequest.getAttribute("use=
rName")</TD></TR>
<TR>
<TD>session</TD>
=
<TD>=E5=8C=85=E5=90=AB=E5=BD=93=E5=89=8DHttpSession=E7=9A=84=E5=B1=9E=E6=80=
=A7=EF=BC=88attribute=EF=BC=89=E7=9A=84Map</TD>
=
<TD>#session.userName=E7=9B=B8=E5=BD=93=E4=BA=8Esession.getAttribute("use=
rName")</TD></TR>
<TR>
<TD>application</TD>
=
<TD>=E5=8C=85=E5=90=AB=E5=BD=93=E5=89=8D=E5=BA=94=E7=94=A8=E7=9A=84Servle=
tContext=E7=9A=84=E5=B1=9E=E6=80=A7=EF=BC=88attribute=EF=BC=89=E7=9A=84Ma=
p</TD>
=
<TD>#application.userName=E7=9B=B8=E5=BD=93=E4=BA=8Eapplication.getAttrib=
ute("userName")</TD></TR>
<TR>
<TD>attr</TD>
<TD>=E7=94=A8=E4=BA=8E=E6=8C=89request > session > =
application=E9=A1=BA=E5=BA=8F=E8=AE=BF=E9=97=AE=E5=85=B6=E5=B1=9E=E6=80=A7=
=EF=BC=88attribute=EF=BC=89</TD>
=
<TD>#attr.userName=E7=9B=B8=E5=BD=93=E4=BA=8E=E6=8C=89=E9=A1=BA=E5=BA=8F=E5=
=9C=A8=E4=BB=A5=E4=B8=8A=E4=B8=89=E4=B8=AA=E8=8C=83=E5=9B=B4=EF=BC=88scop=
e=EF=BC=89=E5=86=85=E8=AF=BB=E5=8F=96userName=E5=B1=9E=E6=80=A7=EF=BC=8C=E7=
=9B=B4=E5=88=B0=E6=89=BE=E5=88=B0=E4=B8=BA=E6=AD=A2</TD></TR></TBODY></TA=
BLE>
=
<LI>=E7=94=A8=E4=BA=8E=E8=BF=87=E6=BB=A4=E5=92=8C=E6=8A=95=E5=BD=B1=EF=BC=
=88projecting)=E9=9B=86=E5=90=88=EF=BC=8C=E5=A6=82<SPAN=20
style=3D"BACKGROUND-COLOR: =
lightgrey">books.{?#this.price<100}</SPAN>=EF=BC=9B=20
<LI>=E6=9E=84=E9=80=A0Map=EF=BC=8C=E5=A6=82<SPAN =
style=3D"BACKGROUND-COLOR: lightgrey">#{'foo1':'bar1',=20
'foo2':'bar2'}</SPAN>=E3=80=82 </LI></OL>
<P>=E4=B8=8B=E9=9D=A2=E8=AE=A9=E6=88=91=E4=BB=AC=E5=AE=83=E4=BB=AC=E7=9A=84=
=E5=85=B7=E4=BD=93=E5=86=99=E6=B3=95=EF=BC=8C=E9=A6=96=E5=85=88=E6=98=AFA=
ction=E7=B1=BB=E4=BB=A3=E7=A0=81=EF=BC=9A</P>
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