Java正则表达式非贪婪不起作用
我正在尝试从以下 HTML 源代码中提取包含字符串“Active”的项目。请注意，活动项目可能会先出现。
这是我正在使用的正则表达式（尝试非贪婪）：
<TR class=\\w*?Item>.*?Active.*?</TD></TR>
with Pattern.CASE_INSENSITIVE|图案.DOTALL | Pattern.MULTILINE
它提取整个源代码而不是第二个：...。
HTML 源代码：
<TR class=Item>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl02_HyperLink1 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=16733" target=_blank>server01</A> </TD>
<TD></TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl02_HyperLink2 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=16733" target=_blank>07D8F15</A> </TD>
<TD style="WIDTH: 150px">IBM 8204-E8A</TD>
<TD style="WIDTH: 150px"><SPAN>AIX - 5.3.0.0 - ML 12</SPAN></TD>
<TD style="WIDTH: 100px">PowerPC_POWER6</TD>
<TD style="WIDTH: 75px">1</TD>
<TD style="WIDTH: 100px">C1-D-G13</TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl02_lbLevel1SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl02_lbLevel2SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl02_lbLevel3SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px">2011-04-15</TD>
<TD style="WIDTH: 100px">Cool Down </TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl02_btnDeleteServer disabled>Delete</A> </TD></TR>
<TR class=AlternateItem>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl03_HyperLink1 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=19631" target=_blank>server01</A> </TD>
<TD></TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl03_HyperLink2 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=19631" target=_blank>105ABCD</A> </TD>
<TD style="WIDTH: 150px">IBM Power 770</TD>
<TD style="WIDTH: 150px"><SPAN>AIX - 5.3.0.0 - TL 12 SP 01</SPAN></TD>
<TD style="WIDTH: 100px">PowerPC_POWER7</TD>
<TD style="WIDTH: 75px">1</TD>
<TD style="WIDTH: 100px">C1-O-G11</TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl03_lbLevel1SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl03_lbLevel2SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl03_lbLevel3SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px">2012-02-09</TD>
<TD style="WIDTH: 100px">Active </TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl03_btnDeleteServer disabled>Delete</A> </TD></TR>
我们将不胜感激您的帮助！
I am trying to extract the Item that contain String "Active" from the following HTML source code. Please be noted the Active item may go first.
Here is the REGEX I am using(Trying to be non-greedy):
<TR class=\\w*?Item>.*?Active.*?</TD></TR>
with Pattern.CASE_INSENSITIVE| Pattern.DOTALL | Pattern.MULTILINE
It extract the whole source code instead of the second one: ... .
HTML Source code:
<TR class=Item>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl02_HyperLink1 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=16733" target=_blank>server01</A> </TD>
<TD></TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl02_HyperLink2 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=16733" target=_blank>07D8F15</A> </TD>
<TD style="WIDTH: 150px">IBM 8204-E8A</TD>
<TD style="WIDTH: 150px"><SPAN>AIX - 5.3.0.0 - ML 12</SPAN></TD>
<TD style="WIDTH: 100px">PowerPC_POWER6</TD>
<TD style="WIDTH: 75px">1</TD>
<TD style="WIDTH: 100px">C1-D-G13</TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl02_lbLevel1SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl02_lbLevel2SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl02_lbLevel3SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px">2011-04-15</TD>
<TD style="WIDTH: 100px">Cool Down </TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl02_btnDeleteServer disabled>Delete</A> </TD></TR>
<TR class=AlternateItem>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl03_HyperLink1 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=19631" target=_blank>server01</A> </TD>
<TD></TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl03_HyperLink2 onclick=javascript:turnColor(this); href="AddEditVirtualServer.aspx?ServerId=19631" target=_blank>105ABCD</A> </TD>
<TD style="WIDTH: 150px">IBM Power 770</TD>
<TD style="WIDTH: 150px"><SPAN>AIX - 5.3.0.0 - TL 12 SP 01</SPAN></TD>
<TD style="WIDTH: 100px">PowerPC_POWER7</TD>
<TD style="WIDTH: 75px">1</TD>
<TD style="WIDTH: 100px">C1-O-G11</TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl03_lbLevel1SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl03_lbLevel2SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px"><SPAN id=ctl00_BodyContents_gvServers_ctl03_lbLevel3SupportGroup>UNIX TEAM 1&CORP</SPAN> </TD>
<TD style="WIDTH: 100px">2012-02-09</TD>
<TD style="WIDTH: 100px">Active </TD>
<TD style="WIDTH: 100px"><A id=ctl00_BodyContents_gvServers_ctl03_btnDeleteServer disabled>Delete</A> </TD></TR>
Your help will be appreciated!
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评论（2）
*?是零 或多次。您可能需要*?is zero or more times. You probably want<TR class=\\w+?Item>您可以通过
Pattern p = Pattern.compile("....", Pattern.MULTILINE);启用多行模式您可能必须将模式中的
更改为.*?。You can enable multi-line mode by
Pattern p = Pattern.compile("....", Pattern.MULTILINE);And you probably have to change
</TD></TR>to</TD>.*?</TR>in your pattern.