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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face="Times New Roman">Digester </FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">tomcat</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中与</SPAN><B><SPAN
style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体">配置文件<SPAN
lang=EN-US> *.xml</SPAN></SPAN></B><SPAN
style="FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 宋体; mso-bidi-font-weight: bold">相结合</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">发挥了重大作用，</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">Digester here act as role to
</FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face="Times New Roman">instance every object by a chain between
each object </FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN></FONT><SPAN
lang=EN-US></SPAN></P>
<P><FONT size=2></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">首先要知道</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">Digester</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的作用和工作原理，可以参考如下文章：</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><A
href="http://www.theserverside.com/articles/article.tss?l=Digester"><FONT
face="Times New Roman"
size=2>http://www.theserverside.com/articles/article.tss?l=Digester</FONT></A></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><A
href="http://www.onjava.com/pub/a/onjava/2002/10/23/digester.html?page=1"><FONT
face="Times New Roman"
size=2>http://www.onjava.com/pub/a/onjava/2002/10/23/digester.html?page=1</FONT></A></SPAN><SPAN
lang=EN-US></SPAN></P>
<P><FONT size=2></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有如下几个地方用到了</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">Digester</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">：</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face="Times New Roman">org<SPAN
style="COLOR: green">\</SPAN>apache<SPAN
style="COLOR: green">\</SPAN>catalina<SPAN
style="COLOR: green">\</SPAN>startup<SPAN
style="COLOR: green">\</SPAN>Catalina.java </FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">Tomcat<SPAN
style="COLOR: green">\</SPAN>conf<SPAN
style="COLOR: green">\</SPAN>server.xml</FONT></SPAN></FONT><SPAN
lang=EN-US></SPAN></P>
<P><FONT size=2></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">主要在两个方法中有用到</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman"> <SPAN style="mso-tab-count: 1">
</SPAN>protected Digester createStartDigester()</FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman"><FONT size=2><SPAN
style="mso-tab-count: 6">
</SPAN>protected void start()</FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><FONT
face="Times New Roman" size=2></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</SPAN><FONT
face="Times New Roman"> <SPAN lang=EN-US>protected void start()
</SPAN></FONT><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中调用</SPAN><FONT
face="Times New Roman"> <SPAN lang=EN-US>protected Digester
createStartDigester()</SPAN></FONT></FONT><SPAN lang=EN-US></SPAN></P>
<P><FONT size=2></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">作用：实例化</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">StandardServer</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">StandardEngine</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">StandardHost，并写入相应的属性</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">等。</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN></FONT><SPAN
lang=EN-US><A
href="http://rosonsandy.blogdriver.com/rosonsandy/879651.html"><FONT
color=#0000ff>org.apache.startup.Catalina</FONT></A>在这里有一些对方法createStartDigester()的说明</SPAN></P>
<P><FONT size=2></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face="Times New Roman">2</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=2><SPAN
lang=EN-US><FONT face="Times New Roman">org<SPAN
style="COLOR: green">\</SPAN>apache<SPAN
style="COLOR: green">\</SPAN>catalina<SPAN
style="COLOR: green">\</SPAN>startup<SPAN style="COLOR: green">\</SPAN>
ContextConfig.java </FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">* .xml </FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">（</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">user.xml</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN><SPAN
lang=EN-US><FONT face="Times New Roman">web.xml</FONT></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）</SPAN></FONT><SPAN
lang=EN-US></SPAN></P>
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