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📄 struts 2的基石——拦截器（interceptor） - max on java - blogjava.mht

📁 MVC结构中struts的详细介绍
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align=3Dtop><IMG id=3DCodehighlighter1_261_662_Closed_Image =
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src=3D"http://www.blogjava.net/Images/OutliningIndicators/ContractedBlock=
.gif"=20
align=3Dtop></SPAN> <SPAN style=3D"COLOR: #0000ff">public</SPAN> <SPAN=20
style=3D"COLOR: #000000"></SPAN><SPAN style=3D"COLOR: =
#0000ff">class</SPAN> <SPAN=20
style=3D"COLOR: #000000">AuthorizationInterceptor </SPAN><SPAN=20
style=3D"COLOR: #0000ff">extends</SPAN> <SPAN=20
style=3D"COLOR: #000000">AbstractInterceptor </SPAN><SPAN=20
id=3DCodehighlighter1_261_662_Closed_Text=20
style=3D"BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; =
DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 =
1px solid; BACKGROUND-COLOR: #ffffff"><IMG=20
src=3D"http://www.blogjava.net/Images/dot.gif"> </SPAN><SPAN=20
id=3DCodehighlighter1_261_662_Open_Text><SPAN style=3D"COLOR: =
#000000">{<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif"=20
align=3Dtop><BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp;@Override<BR><IMG id=3DCodehighlighter1_338_659_Open_Image=20
onclick=3D"this.style.display=3D'none'; =
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src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBloc=
kStart.gif"=20
align=3Dtop><IMG id=3DCodehighlighter1_338_659_Closed_Image =
style=3D"DISPLAY: none"=20
onclick=3D"this.style.display=3D'none'; =
Codehighlighter1_338_659_Closed_Text.style.display=3D'none'; =
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src=3D"http://www.blogjava.net/Images/OutliningIndicators/ContractedSubBl=
ock.gif"=20
align=3Dtop> &nbsp; &nbsp;</SPAN> <SPAN style=3D"COLOR: =
#0000ff">public</SPAN> <SPAN=20
style=3D"COLOR: #000000">String intercept(ActionInvocation ai) =
</SPAN><SPAN=20
style=3D"COLOR: #0000ff">throws</SPAN> <SPAN style=3D"COLOR: =
#000000">Exception=20
</SPAN><SPAN id=3DCodehighlighter1_338_659_Closed_Text=20
style=3D"BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; =
DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 =
1px solid; BACKGROUND-COLOR: #ffffff"><IMG=20
src=3D"http://www.blogjava.net/Images/dot.gif"> </SPAN><SPAN=20
id=3DCodehighlighter1_338_659_Open_Text><SPAN style=3D"COLOR: =
#000000">{<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp; &nbsp; &nbsp;Map session </SPAN><SPAN=20
style=3D"COLOR: #000000">=3D</SPAN> <SPAN=20
style=3D"COLOR: #000000">ai.getInvocationContext().getSession();<BR><IMG =

src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp; &nbsp; &nbsp;String role </SPAN><SPAN=20
style=3D"COLOR: #000000">=3D</SPAN> <SPAN style=3D"COLOR: =
#000000">(String)=20
session.get(</SPAN> <SPAN style=3D"COLOR: #000000">"</SPAN> <SPAN=20
style=3D"COLOR: #000000">ROLE</SPAN> <SPAN style=3D"COLOR: =
#000000">"</SPAN> <SPAN=20
style=3D"COLOR: #000000">);<BR><IMG =
id=3DCodehighlighter1_461_619_Open_Image=20
onclick=3D"this.style.display=3D'none'; =
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src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBloc=
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align=3Dtop><IMG id=3DCodehighlighter1_461_619_Closed_Image =
style=3D"DISPLAY: none"=20
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ock.gif"=20
align=3Dtop> &nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN=20
style=3D"COLOR: #0000ff">if</SPAN> <SPAN style=3D"COLOR: =
#000000">(</SPAN> <SPAN=20
style=3D"COLOR: #0000ff">null</SPAN> <SPAN style=3D"COLOR: =
#000000"></SPAN><SPAN=20
style=3D"COLOR: #000000">!=3D</SPAN> <SPAN style=3D"COLOR: =
#000000">role) </SPAN><SPAN=20
id=3DCodehighlighter1_461_619_Closed_Text=20
style=3D"BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; =
DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 =
1px solid; BACKGROUND-COLOR: #ffffff"><IMG=20
src=3D"http://www.blogjava.net/Images/dot.gif"> </SPAN><SPAN=20
id=3DCodehighlighter1_461_619_Open_Text><SPAN style=3D"COLOR: =
#000000">{<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Object o </SPAN><SPAN=20
style=3D"COLOR: #000000">=3D</SPAN> <SPAN=20
style=3D"COLOR: #000000">ai.getAction();<BR><IMG=20
id=3DCodehighlighter1_523_592_Open_Image=20
onclick=3D"this.style.display=3D'none'; =
Codehighlighter1_523_592_Open_Text.style.display=3D'none'; =
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align=3Dtop><IMG id=3DCodehighlighter1_523_592_Closed_Image =
style=3D"DISPLAY: none"=20
onclick=3D"this.style.display=3D'none'; =
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ock.gif"=20
align=3Dtop> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN=20
style=3D"COLOR: #0000ff">if</SPAN> <SPAN style=3D"COLOR: #000000">(o =
</SPAN><SPAN=20
style=3D"COLOR: #0000ff">instanceof</SPAN> <SPAN style=3D"COLOR: =
#000000">RoleAware)=20
</SPAN><SPAN id=3DCodehighlighter1_523_592_Closed_Text=20
style=3D"BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; =
DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 =
1px solid; BACKGROUND-COLOR: #ffffff"><IMG=20
src=3D"http://www.blogjava.net/Images/dot.gif"> </SPAN><SPAN=20
id=3DCodehighlighter1_523_592_Open_Text><SPAN style=3D"COLOR: =
#000000">{<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;RoleAware action=20
</SPAN><SPAN style=3D"COLOR: #000000">=3D</SPAN> <SPAN=20
style=3D"COLOR: #000000">(RoleAware) o;<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=20
&nbsp;action.setRole(role);<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBloc=
kEnd.gif"=20
align=3Dtop> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;}</SPAN> =
</SPAN><SPAN=20
style=3D"COLOR: #000000"><BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN=20
style=3D"COLOR: #0000ff">return</SPAN> <SPAN=20
style=3D"COLOR: #000000">ai.invoke();<BR><IMG=20
id=3DCodehighlighter1_626_654_Open_Image=20
onclick=3D"this.style.display=3D'none'; =
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ock.gif"=20
align=3Dtop> &nbsp; &nbsp; &nbsp; &nbsp;}</SPAN> </SPAN><SPAN=20
style=3D"COLOR: #000000"></SPAN><SPAN style=3D"COLOR: =
#0000ff">else</SPAN> <SPAN=20
style=3D"COLOR: #000000"></SPAN><SPAN =
id=3DCodehighlighter1_626_654_Closed_Text=20
style=3D"BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; =
DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 =
1px solid; BACKGROUND-COLOR: #ffffff"><IMG=20
src=3D"http://www.blogjava.net/Images/dot.gif"> </SPAN><SPAN=20
id=3DCodehighlighter1_626_654_Open_Text><SPAN style=3D"COLOR: =
#000000">{<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN=20
style=3D"COLOR: #0000ff">return</SPAN> <SPAN=20
style=3D"COLOR: #000000">Action.LOGIN;<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBloc=
kEnd.gif"=20
align=3Dtop> &nbsp; &nbsp; &nbsp; &nbsp;}</SPAN> </SPAN><SPAN=20
style=3D"COLOR: #000000">&nbsp; &nbsp; &nbsp; &nbsp;<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBloc=
kEnd.gif"=20
align=3Dtop> &nbsp; &nbsp;}</SPAN> </SPAN><SPAN style=3D"COLOR: =
#000000"><BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockEn=
d.gif"=20
align=3Dtop>}</SPAN> </SPAN></DIV>
<P>=E4=BB=A5=E4=B8=8A=E4=BB=A3=E7=A0=81=E7=9B=B8=E5=BD=93=E7=AE=80=E5=8D=95=
=EF=BC=8C=E6=88=91=E4=BB=AC=E9=80=9A=E8=BF=87=E6=A3=80=E6=9F=A5session=E6=
=98=AF=E5=90=A6=E5=AD=98=E5=9C=A8=E9=94=AE=E4=B8=BA=E2=80=9CROLE=E2=80=9D=
=E7=9A=84=E5=AD=97=E7=AC=A6=E4=B8=B2=EF=BC=8C=E5=88=A4=E6=96=AD=E7=94=A8=E6=
=88=B7=E6=98=AF=E5=90=A6=E7=99=BB=E9=99=86=E3=80=82=E5=A6=82=E6=9E=9C=E7=94=
=A8=E6=88=B7=E5=B7=B2=E7=BB=8F=E7=99=BB=E9=99=86=EF=BC=8C=E5=B0=86=E8=A7=92=
=E8=89=B2=E6=94=BE=E5=88=B0Action=E4=B8=AD=EF=BC=8C=E8=B0=83=E7=94=A8Acti=
on=EF=BC=9B=E5=90=A6=E5=88=99=EF=BC=8C=E6=8B=A6=E6=88=AA=E7=9B=B4=E6=8E=A5=
=E8=BF=94=E5=9B=9EAction.LOGIN=E5=AD=97=E6=AE=B5=E3=80=82=E4=B8=BA=E4=BA=86=
=E6=96=B9=E4=BE=BF=E5=B0=86=E8=A7=92=E8=89=B2=E6=94=BE=E5=85=A5Action=EF=BC=
=8C=E6=88=91=E5=AE=9A=E4=B9=89=E4=BA=86=E6=8E=A5=E5=8F=A3tutorial.RoleAwa=
re=EF=BC=8C=E4=BB=A3=E7=A0=81=E5=A6=82=E4=B8=8B=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"><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/None.gif" =
align=3Dtop>=20
<SPAN style=3D"COLOR: #0000ff">package</SPAN> <SPAN=20
style=3D"COLOR: #000000">tutorial;<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/None.gif"=20
align=3Dtop><BR><IMG id=3DCodehighlighter1_46_76_Open_Image=20
onclick=3D"this.style.display=3D'none'; =
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src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockSt=
art.gif"=20
align=3Dtop><IMG id=3DCodehighlighter1_46_76_Closed_Image =
style=3D"DISPLAY: none"=20
onclick=3D"this.style.display=3D'none'; =
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src=3D"http://www.blogjava.net/Images/OutliningIndicators/ContractedBlock=
.gif"=20
align=3Dtop></SPAN> <SPAN style=3D"COLOR: #0000ff">public</SPAN> <SPAN=20
style=3D"COLOR: #000000"></SPAN><SPAN style=3D"COLOR: =
#0000ff">interface</SPAN>=20
<SPAN style=3D"COLOR: #000000">RoleAware </SPAN><SPAN=20
id=3DCodehighlighter1_46_76_Closed_Text=20
style=3D"BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; =
DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 =
1px solid; BACKGROUND-COLOR: #ffffff"><IMG=20
src=3D"http://www.blogjava.net/Images/dot.gif"> </SPAN><SPAN=20
id=3DCodehighlighter1_46_76_Open_Text><SPAN style=3D"COLOR: =
#000000">{<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif" =
align=3Dtop>=20
&nbsp; &nbsp;</SPAN> <SPAN style=3D"COLOR: #0000ff">void</SPAN> <SPAN=20
style=3D"COLOR: #000000">setRole(String role);<BR><IMG=20
src=3D"http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockEn=
d.gif"=20
align=3Dtop>}</SPAN> </SPAN></DIV>
<P>=E6=8E=A5=E7=9D=80=EF=BC=8C=E5=88=9B=E5=BB=BAAction=E7=B1=BBtutorial.A=
uthorizatedAccess=E6=A8=A1=E6=8B=9F=E8
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