我正在使用Jsoup API通过阅读网页（html页面）获取最新的文件名。问题是它没有从网页上读取最新文件。以下是示例代码：
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.io.File;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
public class ReadFileName {
static String returnLatestFileName(List<String> keys, List<String> values) throws ParseException {
if (keys.size() != values.size())
throw new IllegalArgumentException("Exception..");
DateFormat df = new SimpleDateFormat("dd/MM/yyyy h:mm a");
Map<String, Date> map = new HashMap<String, Date>();
for (int i = 0; i < keys.size(); i++) {
map.put(keys.get(i), df.parse(values.get(i)));
}
String keyMax = Collections.max(map.entrySet(), Map.Entry.comparingByValue()).getKey();
return keyMax;
}
public String getLatestFile() throws Exception{
Map<String, String> reportDetailsMap = new HashMap<String, String>();
String weeklyReportName = null;
try {
File file = new File("testFile.html");
Document doc = Jsoup.parse(file, "UTF-8");
List fileName = new ArrayList();
Elements div_class = doc.select("div.ms-vb, .itx");
for (Element td : div_class) {
fileName.add(td.select("a").text());
}
Elements nobr = doc.select("nobr");
List fileTime = new ArrayList();
for (Element td : nobr) {
fileTime.add(td.text());
}
weeklyReportName = returnLatestFileName(fileName, fileTime);
System.out.println("---------Latest File Name-------------- "+ weeklyReportName);
} catch (Exception e) {
}
return weeklyReportName;
}
public static void main(String argp[]) throws Exception {
new ReadFileName().getLatestFile();
}
}
输出：
My_File_MonthlyEcsStatus_August2017
预期产出：
My_File_MonthlyEcsStatus_sep2017
Html代码（testFile.html）：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN">
<html dir="ltr" class="ms-isBot" lang="en-US">
<head>
<meta name="GENERATOR" content="Microsoft SharePoint" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<title>
</title>
<!-- === Favicon / Windows Tile ==================================================================== -->
<link rel="shortcut icon" href=" " type="image/vnd.microsoft.icon" id="favicon" />
<meta name="msapplication-TileImage" content=" " />
<meta name="msapplication-TileColor" content="#0072C6" />
<script type="text/javascript" src=" "></script>
<link rel="stylesheet" type="text/css" href=" " />
<link id="Csdion1" rel="stylesheet" type="text/css" href=" " />
<link id="Cssdfdsn2" rel="stylesheet" type="text/css" href=" 0" />
<script type="text/javascript">RegisterSod("strings.js", "\u002f_layouts\u002f15\u002f1033\u002fstrings.js?rev=cG2ZohQxWuyz1\u00252BF2exRTjA\u00253D\u00253D");RegisterSodDep("strings.js", "initstrings.js");
<link type="text/xml" rel="alternate" href="/_asd.xls" />
<!-- Additional header placeholder =========================== -->
<link rel="alternate" type="application/rss+xml" title="Documents" href="/_layouts/15/listfeed.aspx?List=573d80cd%2D44f6%2D47b4%2D942f%2Da12a5a1841cb" />
<span id="analytics">
<script language="JavaScript" type="text/javascript">
<noscript>
<div class="noindex">
You may be trying to access this site from a secured browser on the server. Please enable scripts and reload this page.
</div>
</noscript>
<!-- ===== SP IDs / Prefetch SP images / SP Form =========================================================================== -->
<div id="imgPrefetch" style="display:none">
<img src="/_layouts/15/images/spcommon.png" />
</div>
<form method="post" action="./AllItems.aspx?RootFolder=%2fShared+Documents%2f08.Test+Report%2fMY20+Test+Reports%2fSanity%2fRaw+Data&FolderCTID=0x0120003C2FB175ACD9FE42B875BA259F53A6E3&View=%7bF8BC514C-49A5-47A2-8A6D-52DF70D61AE7%7d" id="aspnetForm">
<input type="hidden" name="_wpcmWpid" id="_wpcmWpid" value="" />
<input type="hidden" name="wpcmVal" id="wpcmVal" value="" />
<input type="hidden" name="MSOWebPartPage_PostbackSource" id="MSOWebPartPage_PostbackSource" value="" />
</script>
<div id="ctl00_ctl47_asdasd" class="asdaBrandMenu">
<a href="http://www.qwer.com/" target="_blank"> </a>
<!-- =============Suite Bar Links ======================-->
<div id="DeltaSuiteLinks" class="ms-core-deltaSuiteLinks">
<div id="suiteLinksBox">
<div id="SuiteLinksHidden" style="display: none">
</div>
<div id="launcherIconContainer">
</div>
<span style="display:none">
<menu type="ServerMenu" id="zz1_ID_PersonalActionMenu" hideicons="true">
<ie:menuitem id="zz2_ID_MyProfile" type="option" onmenuclick="" text="My Profile" menugroupid="100"></ie:menuitem>
<ie:menuitem id="zz3_ID_Logout" type="option" onmenuclick="" text="Sign Out" description="Logout of this site." menugroupid="100"></ie:menuitem>
</menu></span>
<span id="zz4_Menu_t" class="ms-menu-althov ms-welcome-root" title="Open Menu" onmouseover="MMU_PopMenuIfShowing(this);MMU_EcbTableMouseOverOut(this, true)" hoveractive="ms-menu-althov-active ms-welcome-root ms-welcome-hover" hoverinactive="ms-menu-althov ms-welcome-root" onclick=" CoreInvoke('MMU_Open',byid('zz1_ID_PersonalActionMenu'), MMU_GetMenuFromClientId('zz4_Menu'),event,true, null, 0); return false;" foa="MMU_GetMenuFromClientId('zz4_Menu')" oncontextmenu="ClkElmt(this); return false;" style="white-space:nowrap"><a class="ms-core-menu-root" id="zz4_Menu" accesskey="/" href="javascript:;" title="Open Menu" onfocus="MMU_EcbLinkOnFocusBlur(byid('zz1_ID_PersonalActionMenu'), this, true);" onkeydown="MMU_EcbLinkOnKeyDown(byid('zz1_ID_PersonalActionMenu'), MMU_GetMenuFromClientId('zz4_Menu'), event);" onclick=" CoreInvoke('MMU_Open',byid('zz1_ID_PersonalActionMenu'), MMU_GetMenuFromClientId('zz4_Menu'),event,true, null, 0); return false;" oncontextmenu="ClkElmt(this); return false;" menutokenvalues="MENUCLIENTID=zz4_Menu,TEMPLATECLIENTID=zz1_ID_PersonalActionMenu" serverclientid="zz4_Menu"></a><span style="height:4px;width:7px;position:relative;display:inline-block;overflow:hidden;" class="s4-clust ms-viewselector-arrow ms-menu-stdarw ms-core-menu-arrow"><img src="/_catalogs/theme/Themed/EB5E82F/spcommon-B35BB0A9.themedpng?ctag=3" alt="Open Menu" style="position:absolute;left:-95px !important;top:-259px !important;" /></span><span style="height:4px;width:7px;position:relative;display:inline-block;overflow:hidden;" class="s4-clust ms-core-menu-arrow ms-viewselector-arrow ms-menu-hovarw"><img src="/_catalogs/theme/Themed/EB5E82F/spcommon-B35BB0A9.themedpng?ctag=3" alt="Open Menu" style="position:absolute;left:-86px !important;top:-259px !important;" /></span></span>
</div>
<!-- ======== Start: Site Actions menu ============= -->
<div id="suiteBarButtons">
<span class="ms-siteactions-root" id="siteactiontd"> <span style="display:none">
<menu type="ServerMenu" id="zz5_FeatureMenuTemplate1" hideicons="true">
<ie:menuitem id="zz" type="option" onmenuclick="" description="" menugroupid="100"></ie:menuitem>
<ie:menuitem id="zz7" type="option" iconsrc="" onmenuclick="STSNavigate2(event,'/_layouts/15/viewlsts.aspx');" text="Site contents" description="View all libraries and lists in this site." menugroupid="200"></ie:menuitem>
</menu></span><span id="zz8_SiteActionsMenu_t" class="ms-siteactions-normal" title="Settings" onmouseover="MMU_PopMenuIfShowing(this);MMU_EcbTableMouseOverOut(this, true)" hoveractive="ms-siteactions-normal ms-siteactions-hover" hoverinactive="ms-siteactions-normal">
<a class="ms-core-menu-root" id="zz8_SiteActionsMenu" accesskey="/" href="javascript:;" title="Settings" onkeydown="MMU_EcbLinkOnKeyDown(byid('zz5_FeatureMenuTemplate1'), MMU_GetMenuFromClientId('zz8_SiteActionsMenu'));" menutokenvalues="MENUCLIENTID=zz8_SiteActionsMenu,TEMPLATECLIENTID=zz5_FeatureMenuTemplate1" serverclientid="zz8_SiteActionsMenu"><span class="ms-siteactions-imgspan"><img class="ms-core-menu-buttonIcon" src="/_catalogs/theme/Themed/EB5E82F/Settings-white-94FE89A9.themedpng?ctag=3" alt="Settings" title="Settings" /></span><span class="ms-accessible">Use SHIFT+ENTER to open the menu (new window).</span></a></span> </span>
</div>
<!-- ================== End: Site Actions Menu ============================================ -->
<!-- ================== IT Help Link ============================================ -->
<div class="ms-core-listMenu-verticalBox">
</div>
</div>
</div>
</div>
<!-- ===== Main Content ========================================================================================== -->
<tr class="ms-itmhover" iid="161,113,0">
<td class="ms-vb-itmcbx ms-vb-firstCell"><input type="checkbox" class="s4-itm-cbx" /></td>
<td class="ms-vb-icon"><img border="0" alt="My_File_MonthlyEcsStatus_July2017" title="My_File_MonthlyEcsStatus_July2017" src="/_layouts/15/images/icpdf.png?rev=40" /></td>
<td height="100%" onmouseover="OnChildItem(this)" class="ms-vb-title">
<div class="ms-vb itx" onmouseover="OnItem(this)" ctxname="ctx161" id="113" field="LinkFilename" perm="0xb008431061" eventtype="">
<a onfocus="OnLink(this)" href="/MyDocs/My_File_MonthlyEcsStatus_July2017" onmousedown="return VerifyHref(this,event,'1','','')" onclick="return DispEx(this,event,'TRUE','FALSE','FALSE','','1','','','','','66','0','0','0xb008431061','','')">My_File_MonthlyEcsStatus_July2017</a>
</div>
<div class="s4-ctx" onmouseover="OnChildItem(this.parentNode); return false;">
<span> </span>
<a onfocus="OnChildItem(this.parentNode.parentNode); return false;" onclick="PopMenuFromChevron(event); return false;" href="javascript:;" title="Open Menu"></a>
<span> </span>
</div></td>
<td class="ms-vb2">
<nobr>
7/12/2017 3:20 PM
</nobr></td>
<td class="ms-vb-user"><span class="ms-noWrap"><span class="ms-imnSpan"><a href="#" onclick="IMNImageOnClick(event);return false;" class="ms-imnlink ms-spimn-presenceLink"><span class="ms-spimn-presenceWrapper ms-imnImg ms-spimn-imgSize-10x10"><img name="imnmark" class="ms-spimn-img ms-spimn-presence-disconnected-10x10x32" title="" showofflinepawn="1" src="/_layouts/15/images/spimn.png?rev=40" alt="No presence information" /></span></a></span><span class="ms-noWrap ms-imnSpan"><a href="#" onclick="IMNImageOnClick(event);return false;" class="ms-imnlink" tabindex="-1"><img name="imnmark" class="ms-hide" title="" showofflinepawn="1" src="/_layouts/15/images/blank.gif?rev=40" alt=""/></a><a class="ms-subtleLink" onclick="GoToLinkOrDialogNewWindow(this);return false;" href="">Jen Kulchycki</a></span></span></td>
<td class="ms-vb-user">
<div class="ms-peopleux-vanillauser">
</div></td>
</tr>
<tr class="ms-alternating ms-itmhover" iid="161,119,0">
<td class="ms-vb-itmcbx ms-vb-firstCell"><input type="checkbox" class="s4-itm-cbx" /></td>
<td class="ms-vb-icon"><img border="0" alt="My_File_MonthlyEcsStatus_August2017" title="My_File_MonthlyEcsStatus_August2017" src="/_layouts/15/images/icpdf.png?rev=40" /></td>
<td height="100%" onmouseover="OnChildItem(this)" class="ms-vb-title">
<div class="ms-vb itx" onmouseover="OnItem(this)" ctxname="ctx161" id="119" field="LinkFilename" perm="0xb008431061" eventtype="">
<a onfocus="OnLink(this)" href="/MyDocs/My_File_MonthlyEcsStatus_August2017.xls" onmousedown="return VerifyHref(this,event,'1','','')" onclick="return DispEx(this,event,'TRUE','FALSE','FALSE','','1','','','','','66','0','0','0xb008431061','','')">My_File_MonthlyEcsStatus_August2017</a>
</div>
<div class="s4-ctx" onmouseover="OnChildItem(this.parentNode); return false;">
<span> </span>
<a onfocus="OnChildItem(this.parentNode.parentNode); return false;" onclick="PopMenuFromChevron(event); return false;" href="javascript:;" title="Open Menu"></a>
<span> </span>
</div></td>
<td class="ms-vb2">
<nobr>
08/21/2017 11:49 PM
</nobr></td>
<td class="ms-vb-user"><span class="ms-noWrap"><span class="ms-imnSpan"><a href="#" onclick="IMNImageOnClick(event);return false;" class="ms-imnlink ms-spimn-presenceLink"><span class="ms-spimn-presenceWrapper ms-imnImg ms-spimn-imgSize-10x10"><img name="imnmark" class="ms-spimn-img ms-spimn-presence-disconnected-10x10x32" title=""/></span></a></span><span class="ms-noWrap ms-imnSpan"><a href="#" onclick="IMNImageOnClick(event);return false;" class="ms-imnlink" tabindex="-1"><img name="imnmark" class="ms-hide" title="" showofflinepawn="1" src="/_layouts/15/images/blank.gif?rev=40" alt="" /></a><a class="ms-subtleLink" onclick="GoToLinkOrDialogNewWindow(this);return false;" href="">Jen Kulchycki</a></span></span></td>
<td class="ms-vb-user">
<div class="ms-peopleux-vanillauser">
</div></td>
</tr>
<tr class="ms-alternating ms-itmhover" iid="161,119,0">
<td class="ms-vb-itmcbx ms-vb-firstCell"><input type="checkbox" class="s4-itm-cbx" /></td>
<td class="ms-vb-icon"><img border="0" alt="My_File_MonthlyEcsStatus_sep2017" title="My_File_MonthlyEcsStatus_sep2017" src="/_layouts/15/images/icpdf.png?rev=40" /></td>
<td height="100%" onmouseover="OnChildItem(this)" class="ms-vb-title">
<div class="ms-vb itx" onmouseover="OnItem(this)" ctxname="ctx161" id="119" field="LinkFilename" perm="0xb008431061" eventtype="">
<a onfocus="OnLink(this)" href="/MyDocs/My_File_MonthlyEcsStatus_sep2017.xls" onmousedown="return VerifyHref(this,event,'1','','')" onclick="return DispEx(this,event,'TRUE','FALSE','FALSE','','1','','','','','66','0','0','0xb008431061','','')">My_File_MonthlyEcsStatus_sep2017</a>
</div>
<div class="s4-ctx" onmouseover="OnChildItem(this.parentNode); return false;">
<span> </span>
<a onfocus="OnChildItem(this.parentNode.parentNode); return false;" onclick="PopMenuFromChevron(event); return false;" href="javascript:;" title="Open Menu"></a>
<span> </span>
</div></td>
<td class="ms-vb2">
<nobr>
09/20/2017 10:49 PM
</nobr></td>
<td class="ms-vb-user"><span class="ms-noWrap"><span class="ms-imnSpan"><a href="#" onclick="IMNImageOnClick(event);return false;" class="ms-imnlink ms-spimn-presenceLink"><span class="ms-spimn-presenceWrapper ms-imnImg ms-spimn-imgSize-10x10"><img name="imnmark" class="ms-spimn-img ms-spimn-presence-disconnected-10x10x32" title="" showofflinepawn="1"/></span></a></span><span class="ms-noWrap ms-imnSpan"><a href="#" onclick="IMNImageOnClick(event);return false;" class="ms-imnlink" tabindex="-1"><img name="imnmark" class="ms-hide" title="" showofflinepawn="1" src="/_layouts/15/images/blank.gif?rev=40" alt="" /></a><a class="ms-subtleLink" onclick="GoToLinkOrDialogNewWindow(this);return false;" href="">tHJoee</a></span></span></td>
<td class="ms-vb-user">
<div class="ms-peopleux-vanillauser">
</div></td>
</tr>
</tbody>
</table></td>
</tr>
从上面的html文件中，我想读取列出的文件名并返回最近上传的文件名。需要做哪些更改才能获得最近上传的文件名。我无法弄清楚问题，任何输入？
答案 0 :(得分：0)
更改此行：
DateFormat df = new SimpleDateFormat("dd/MM/yyyy h:mm a");
通过这个：
DateFormat df = new SimpleDateFormat("MM/dd/yyyy h:mm a");
您必须指定从html文件中读取日期的模式。