使用jsoup来解析HTML表方面的问题 [英] Problems using jsoup to parse HTML Table

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本文介绍了使用jsoup来解析HTML表方面的问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

几天我问了一个问题来解析HTML表JSOUP。 @luksch帮助我，我可以解决我的问题。我的问题是如何解析HTML文件的一部分有许多TR和TD选择在其中一个especific文本（集团块表）。

Few days before I asked a question to parse HTML Table with JSOUP. @luksch helped me and I could solve my problem. My problem was how to parse one part of HTML file with many TR and TD to select an especific text in them (Group Block TABLE).

HTML code：

HTML CODE:

<TABLE SUMMARY="Topline" WIDTH="100%">
<TR><TD HEIGHT=16>&nbsp;</TD></TR>  <!-- For the menu bar -->
<TR>
<TD VALIGN=MIDDLE ALIGN=LEFT WIDTH="30%">
<FONT FACE="Arial, Helvetica" SIZE="+1" COLOR="silver"><B>Xymon</B></FONT
</TD>
<TD VALIGN=MIDDLE ALIGN=CENTER WIDTH="40%">
<CENTER><FONT FACE="Arial, Helvetica" SIZE="+1" COLOR="silver"><B>Current Status</B></FONT></CENTER>
</TD>
<TD VALIGN=MIDDLE ALIGN=RIGHT WIDTH="30%">
<FONT FACE="Arial, Helvetica" SIZE="+1" COLOR="silver"><B>Thu Jul 23 16:05:06 2015</B></FONT>
</TD>
</TR>
<TR>
<TD COLSPAN=3> <HR WIDTH="100%"> </TD>
</TR>
</TABLE>
<BR>
<A NAME=hosts-blk>&nbsp;</A>

<CENTER><TABLE SUMMARY="Group Block" BORDER=0 CELLPADDING=2>
<TR><TD VALIGN=MIDDLE ROWSPAN=2><CENTER><FONT COLOR="#FFFFF0" SIZE="+1">&nbsp;</FONT></CENTER></TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45> 
<A HREF="/hobbit-cgi/hobbitcolumn.sh?bbd"><FONT COLOR="#87a9e5" SIZE="-1"><B>bbd</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?bbgen"><FONT COLOR="#87a9e5" SIZE="-1"><B>bbgen</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?bbtest"><FONT COLOR="#87a9e5" SIZE="-1"><B>bbtest</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?conn"><FONT COLOR="#87a9e5" SIZE="-1"><B>conn</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?cpu"><FONT COLOR="#87a9e5" SIZE="-1"><B>cpu</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?disk"><FONT COLOR="#87a9e5" SIZE="-1"><B>disk</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?files"><FONT COLOR="#87a9e5" SIZE="-1"><B>files</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?hobbitd"><FONT COLOR="#87a9e5" SIZE="-1"><B>hobbitd</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?http"><FONT COLOR="#87a9e5" SIZE="-1"><B>http</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?info"><FONT COLOR="#87a9e5" SIZE="-1"><B>info</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?memory"><FONT COLOR="#87a9e5" SIZE="-1"><B>memory</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?msgs"><FONT COLOR="#87a9e5" SIZE="-1"><B>msgs</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?ports"><FONT COLOR="#87a9e5" SIZE="-1"><B>ports</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?procs"><FONT COLOR="#87a9e5" SIZE="-1"><B>procs</B></FONT></A> </TD>
<TD ALIGN=CENTER VALIGN=BOTTOM WIDTH=45>
<A HREF="/hobbit-cgi/hobbitcolumn.sh?trends"><FONT COLOR="#87a9e5" SIZE="-1"><B>trends</B></FONT></A> </TD>
</TR> 

<TR><TD COLSPAN=15><HR WIDTH="100%"></TD></TR>
<TR class=line>
<TD NOWRAP><A NAME="hostname1">&nbsp;</A>
<FONT SIZE="+1" COLOR="#FFFFCC" FACE="Tahoma, Arial, Helvetica"><span title="127.0.0.1">hostname1</span></FONT><TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1.&amp;SERVICE=bbd"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="bbd:green:268d04h25m" TITLE="bbd:green:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=bbgen"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="bbgen:green:268d04h24m" TITLE="bbgen:green:268d04h24m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=bbtest"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="bbtest:green:268d04h25m" TITLE="bbtest:green:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=conn"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="conn:green:268d04h25m" TITLE="conn:green:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=cpu"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="cpu:green:169d00h15m" TITLE="cpu:green:169d00h15m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=disk"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="disk:green:268d04h25m" TITLE="disk:green:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=files"><IMG SRC="/hobbit/gifs/static/clear.gif" ALT="files:clear:268d04h25m" TITLE="files:clear:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=hobbitd"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="hobbitd:green:169d01h05m" TITLE="hobbitd:green:169d01h05m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=http"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="http:green:268d04h19m" TITLE="http:green:268d04h19m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=info"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="info:green:127.0.0.1" TITLE="info:green:127.0.0.1" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=memory"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="memory:green:268d04h25m" TITLE="memory:green:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=msgs"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="msgs:green:268d04h20m" TITLE="msgs:green:268d04h20m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=ports"><IMG SRC="/hobbit/gifs/static/clear.gif" ALT="ports:clear:268d04h25m" TITLE="ports:clear:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=procs"><IMG SRC="/hobbit/gifs/static/clear.gif" ALT="procs:clear:268d04h25m" TITLE="procs:clear:268d04h25m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=trends"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="trends:green:" TITLE="trends:green:" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
</TR>

<TR class=line>
<TD NOWRAP><A NAME="hostname2">&nbsp;</A>
<FONT SIZE="+1" COLOR="#FFFFCC" FACE="Tahoma, Arial, Helvetica"><span title="127.0.0.2">hostname2</span></FONT><TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname2&amp;SERVICE=bbd"><IMG SRC="/hobbit/gifs/static/red.gif" ALT="bbd:red:16d06h46m" TITLE="bbd:red:16d06h46m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname2&amp;SERVICE=conn"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="conn:green:16d06h46m" TITLE="conn:green:16d06h46m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname2&amp;SERVICE=http"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="http:green:16d06h46m" TITLE="http:green:16d06h46m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname2&amp;SERVICE=info"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="info:green:127.0.0.2" TITLE="info:green:127.0.0.2" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER>-</TD>
<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname2&amp;SERVICE=trends"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="trends:green:" TITLE="trends:green:" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>
</TR>

</TABLE></CENTER><BR>
<BR><BR>

第一部分（表团块状与BBD，bbdgen，bbtest等），我固定：

First part (TABLE Group Block with bbd, bbdgen, bbtest, etc) I fixed with: 

ArrayList<String> groupBlock = new ArrayList<String>();
Object[] objPlace;
Element table = document.select("TABLE").get(1); //select the second table:     "Group Block"
Elements rows = table.select("TR");             
for (int i = 0; i < rows.size(); i++) {
    Element row = rows.get(i);
    Elements cols = row.select("TD");
       for (Element col : cols){
           switch(col.text()){
           case "bbd": 
           case "bbgen":
           case "bbtest":
           //...more cases
               groupBlock.add(col.text());
               break;
           default:
               break;
           }
       }      
}
objPlace = groupBlock.toArray();

现在我要解析的两个主机名（主机名1和主机名2）把一个分离的TextView，但问题是，主机可以在未来改变其名称。另外，我在每个TD解析IMG SRC，例如：

Now I have to parse the two hostnames (hostname1 and hostname2) to put in a separates TextView but the problem is that hostname can change its name in the future. In addition, I have to parse the "IMG SRC" in each TD, for example:

<TD ALIGN=CENTER><A HREF="/hobbit-cgi/bb-hostsvc.sh?HOST=hostname1&amp;SERVICE=http"><IMG SRC="/hobbit/gifs/static/green.gif" ALT="http:green:268d04h19m" TITLE="http:green:268d04h19m" HEIGHT="16" WIDTH="16" BORDER=0></A></TD>

我需要解析只有IMG SRC /hobbit/gifs/static/green.gif 以这将在开始时对URL的其余部分追加：的 http://example.com/hobbit/gifs/static/green.gif 获取图像并把它放在在XML布局另一个领域。我在HTML文件中所有的IMG SRC TD做到这一点。

I need parse only the IMG SRC /hobbit/gifs/static/green.gif to which will have to append the rest of the url at the begining: http://example.com/hobbit/gifs/static/green.gif to get the image and put it in another field in XML layout. I have to do this with all IMG SRC TD in HTML file.

我知道，一旦我得到的图像我必须做的是这样的：

I know that once I get the images I have to do something like:

InputStream input = new java.net.URL(imgSrc).openStream();
bitmap = BitmapFactory.decodeStream(input);
ImageView logoimg = (ImageView) findViewById(R.id.logo);
logoimg.setImageBitmap(bitmap);

imgSrc 应阵列，​​所有的IMG SRC

imgSrc should be array with all IMG SRC

我不知道如何在previous步骤开始，我很菜鸟Jsoup和Android。

I don't know how to start in previous steps, I'm very rookie with Jsoup and Android.

先谢谢了。

推荐答案

您可以查询的＆LT; TD＆GT; 与主机名的元素。然后去父母，即＆LT; TR＆GT; 。从那以后再次让所有的孩子＆LT; TD＆GT; 。这些都将是包含要获得链接的条目。沿着这样的：

You could query for the <td> with the hostname element. Then go to the parent, i.e. the <tr>. from then get again all children <td>. these will be the entries containing the links you want to get. Something along this:

Document document = Jsoup.parse(html);
Element table = document.select("TABLE").get(1); 
Elements asWithName = table.select("tr>td a[name]");
for (Element aWithName : asWithName){
    String name = aWithName.attr("name");
    System.out.println("hostname="+name);
    Element tr = aWithName.parent().parent();
    for (Element td : tr.select("td")){
        Element img = td.select("img").first();
        if (img == null){
            continue;
        }
        String imgRelPath = img.attr("src");
        System.out.println("  imgRelPath="+imgRelPath);
    }
}

这篇关于使用jsoup来解析HTML表方面的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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