📄 从jar包中获取资源的方法.mht
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FONT></I>=20
=
<LI> <I><FONT=20
=
color=3D#339900>// array with which to create&nb=
sp;the image.</FONT></I>=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>final</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/ByteArrayOutput=
Stream.java.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>ByteArrayOutputStream</U></FONT></A></B> byteAr=
rayOutputStream =3D <B><FONT=20
=
color=3D#0000ff>new</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/ByteArrayOutput=
Stream.java.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>ByteArrayOutputStream</U></FONT></A></B>();=20
=
<LI> <I><FONT=20
=
color=3D#339900>// Attempt to copy the source&nb=
sp;image data into the byte array</FONT></I>=20
=
<LI> <I><FONT=20
=
color=3D#339900>// stream, and then create an&nb=
sp;image from the result.</FONT></I>=20
=
<LI> <B><FONT=20
color=3D#0000ff>try</FONT></B>=20
=
<LI> {=20
=
<LI> <I><FONT=20
=
color=3D#339900>// Read/write image data in 1k&n=
bsp;chunks.</FONT></I>=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>final</FONT></B> <B><FONT=20
=
color=3D#0000ff>byte</FONT></B>[] bytes =3D <B><FONT=20
=
color=3D#0000ff>new</FONT></B> <B><FONT=20
color=3D#0000ff>byte</FONT></B>[1024];=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>int</FONT></B> read =3D 0;=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>while</FONT></B> ((read =3D inputStream.re=
ad(bytes)) >=3D 0)=20
=
<LI> {=20
=
<LI> byteArray=
OutputStream.write(bytes, 0, read);=20
=
<LI> }=20
<LI>
=
<LI> <I><FONT=20
=
color=3D#339900>// Create an image from the =
;resulting byte array.</FONT></I>=20
=
<LI> image =3D <=
B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/awt/Toolkit.java.h=
tml"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>Toolkit</U></FONT></A></B>.getDefaultToolkit().creat=
eImage(=20
=
<LI> &nb=
sp;byteArrayOutputStream.toByteArray());=20
=
<LI> }=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>catch</FONT></B> (<B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/IOException.jav=
a.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>IOException</U></FONT></A></B> exception)=20
=
<LI> {=20
=
<LI> exception.printStackT=
race();=20
=
<LI> }=20
<LI> }=20
<LI> <B><FONT=20
=
color=3D#0000ff>return</FONT></B> image;=20
<LI> }=20
<LI>
<LI> <B><FONT=20
=
color=3D#0000ff>public</FONT></B> <B><FONT=20
=
color=3D#0000ff>static</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/lang/String.java.h=
tml"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>String</U></FONT></A></B> getTextFromJar(<B><FO=
NT=20
=
color=3D#0000ff>final</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/lang/String.java.h=
tml"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>String</U></FONT></A></B> filename, <B><A =
=
href=3D"http://www.javaresearch.org/source/jdk142/java/lang/Class.java.ht=
ml"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>Class</U></FONT></A></B> c)=20
<LI> {=20
<LI> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/lang/String.java.h=
tml"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>String</U></FONT></A></B> text =3D <F=
ONT=20
color=3D#ff33ff>""</FONT>;=20
<LI> <I><FONT=20
=
color=3D#339900>// Open a resource stream on&nbs=
p;the supplied file name.</FONT></I>=20
<LI> <B><FONT=20
=
color=3D#0000ff>final</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/InputStream.jav=
a.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>InputStream</U></FONT></A></B> inputStream =
;=3D c.getResourceAsStream(filename);=20
<LI> <I><FONT=20
=
color=3D#339900>// If the file is found...</FONT=
></I>=20
<LI> <B><FONT=20
=
color=3D#0000ff>if</FONT></B> (inputStream !=3D <B><FONT=20
color=3D#0000ff>null</FONT></B>)=20
<LI> {=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>final</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/BufferedReader.=
java.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>BufferedReader</U></FONT></A></B> in =3D&n=
bsp;<B><FONT=20
=
color=3D#0000ff>new</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/BufferedReader.=
java.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>BufferedReader</U></FONT></A></B>(<B><FONT=20
=
color=3D#0000ff>new</FONT></B> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/InputStreamRead=
er.java.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>InputStreamReader</U></FONT></A></B>(=20
=
<LI> inputStre=
am));=20
=
<LI> <B><FONT=20
color=3D#0000ff>try</FONT></B>=20
=
<LI> {=20
=
<LI> <B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/lang/String.java.h=
tml"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>String</U></FONT></A></B> s;=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>while</FONT></B> ((s =3D in.readLine())&nb=
sp;!=3D <B><FONT=20
color=3D#0000ff>null</FONT></B>)=20
=
<LI> {=20
=
<LI> text =
;+=3D s + <FONT=20
color=3D#ff33ff>"\n"</FONT>;=20
=
<LI> }=20
=
<LI> }=20
=
<LI> <B><FONT=20
=
color=3D#0000ff>catch</FONT></B> (<B><A=20
=
href=3D"http://www.javaresearch.org/source/jdk142/java/io/IOException.jav=
a.html"=20
target=3D_blank><FONT=20
=
class=3DclassLink><U>IOException</U></FONT></A></B> exception)=20
=
<LI> {=20
=
<LI> exception.printStackT=
race();=20
=
<LI> }=20
<LI> }=20
<LI> <B><FONT=20
=
color=3D#0000ff>return</FONT></B> text;=20
<LI> }=20
<LI>} =
</LI></OL></DIV></SPAN><BR></DIV></TD>
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width=3D8></TD></TR></TBODY></TABLE><BR><BR></DIV></TD></TR></TBODY></TAB=
LE></TD></TR></TBODY></TABLE></TD></TR>
<TR>
<TD><IMG height=3D8 alt=3D""=20
src=3D"http://www.35dx.com/images/leiye_1_14.gif"=20
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width=3D556></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD>
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