还是xmlreader的问题
0
[已解决问题]
解决于 2008-08-07 20:46
这个类实在是不熟悉，里面有很多问题解决不了。<div>XML文档如下：</div><div><div class="e">
<div class="c" style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><a class="b" onfocus="h()" onclick="return false" href="file:///K:/Project/NET/SEC/SEC/bin/Debug/Data/Favorites.xml#">-</a> <span class="m"><</span><span class="t">Favorites</span><span class="m">></span></div>
<div>
<div class="e">
<div class="c" style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><a class="b" onfocus="h()" onclick="return false" href="file:///K:/Project/NET/SEC/SEC/bin/Debug/Data/Favorites.xml#">-</a> <span class="m"><</span><span class="t">Folder</span><span class="t"> Name</span><span class="m">="</span><b>搜索</b><span class="m">"</span><span class="m">></span></div>
<div>
<div class="e">
<div class="c" style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><a class="b" onfocus="h()" onclick="return false" href="file:///K:/Project/NET/SEC/SEC/bin/Debug/Data/Favorites.xml#">-</a> <span class="m"><</span><span class="t">Link</span><span class="m">></span></div>
<div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Title</span><span class="m">></span><span class="tx">百度</span><span class="m"></</span><span class="t">Title</span><span class="m">></span> </div></div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Url</span><span class="m">></span><span class="tx">http://www.baidu.com</span><span class="m"></</span><span class="t">Url</span><span class="m">></span> </div></div>
<div><span class="b"> </span> <span class="m"></</span><span class="t">Link</span><span class="m">></span></div></div></div>
<div class="e">
<div class="c" style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><a class="b" onfocus="h()" onclick="return false" href="file:///K:/Project/NET/SEC/SEC/bin/Debug/Data/Favorites.xml#">-</a> <span class="m"><</span><span class="t">Link</span><span class="m">></span></div>
<div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Title</span><span class="m">></span><span class="tx">搜狐</span><span class="m"></</span><span class="t">Title</span><span class="m">></span> </div></div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Url</span><span class="m">></span><span class="tx">http://www.sohu.com</span><span class="m"></</span><span class="t">Url</span><span class="m">></span> </div></div>
<div><span class="b"> </span> <span class="m"></</span><span class="t">Link</span><span class="m">></span></div></div></div>
<div><span class="b"> </span> <span class="m"></</span><span class="t">Folder</span><span class="m">></span></div></div></div>
<div class="e">
<div class="c" style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><a class="b" onfocus="h()" onclick="return false" href="file:///K:/Project/NET/SEC/SEC/bin/Debug/Data/Favorites.xml#">-</a> <span class="m"><</span><span class="t">Folder</span><span class="t"> Name</span><span class="m">="</span><b>娱乐</b><span class="m">"</span><span class="m">></span></div>
<div>
<div class="e">
<div class="c" style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><a class="b" onfocus="h()" onclick="return false" href="file:///K:/Project/NET/SEC/SEC/bin/Debug/Data/Favorites.xml#">-</a> <span class="m"><</span><span class="t">Link</span><span class="m">></span></div>
<div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Title</span><span class="m">></span><span class="tx">一听</span><span class="m"></</span><span class="t">Title</span><span class="m">></span> </div></div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Url</span><span class="m">></span><span class="tx">http://www.1ting.com</span><span class="m"></</span><span class="t">Url</span><span class="m">></span> </div></div>
<div><span class="b"> </span> <span class="m"></</span><span class="t">Link</span><span class="m">></span></div></div></div>
<div class="e">
<div class="c" style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><a class="b" onfocus="h()" onclick="return false" href="file:///K:/Project/NET/SEC/SEC/bin/Debug/Data/Favorites.xml#">-</a> <span class="m"><</span><span class="t">Link</span><span class="m">></span></div>
<div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Title</span><span class="m">></span><span class="tx">腾讯</span><span class="m"></</span><span class="t">Title</span><span class="m">></span> </div></div>
<div class="e">
<div style="MARGIN-LEFT: 1em; TEXT-INDENT: -2em"><span class="b"> </span> <span class="m"><</span><span class="t">Url</span><span class="m">></span><span class="tx">http://www.qq.com</span><span class="m"></</span><span class="t">Url</span><span class="m">></span> </div></div>
<div><span class="b"> </span> <span class="m"></</span><span class="t">Link</span><span class="m">></span></div></div></div>
<div><span class="b"> </span> <span class="m"></</span><span class="t">Folder</span><span class="m">></span></div></div></div>
<div><span class="b"> </span> <span class="m"></</span><span class="t">Favorites</span><span class="m">></span></div><div>我要得到所有Title和Url，但前面还要一个条件，就是通过参数Folder的属性name来进行查询，如果参数值是“搜索”，则得到的应该是“搜索”下的所有Title和Url。</div></div></div></div>
最佳答案
0
使用XMLReader是一件非常复杂的事情。你需要确保任何时候你都能够清晰的了解当前位置在哪里 和 接下来会出现什么。 做搜索更是一件非常困难的事情。非常不建议你使用XmlReader做这个题。其实XmlDocument性能非常好，我曾经尝试加载过20+M的XML文件，也就延迟1-2秒。比记事本快多了。
如果你非要试一下，下面的代码也许能用。反正我是没打算调试和排错了。太累人了。
private void Form1_Load(object sender, EventArgs e)
{
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Fragment;
settings.IgnoreWhitespace = true;
settings.IgnoreComments = true;
this.reader = XmlReader.Create(file, settings);
this.reader.ReadToFollowing("Folder"); // Move to first folder
string folders = "";
while (this.reader.IsStartElement("Folder"))
{
if (!IsMatch("搜索"))
{
this.reader.Skip(); // Skip all contents of current Folder element.
continue;
}
if (reader.IsEmptyElement)
{
this.reader.Skip();
continue;
}
this.reader.Read(); // Skip start element of Folder.
while (this.reader.IsStartElement("Link"))
{
reader.Read(); // Skip start element of Link.
string title = reader.ReadContentAsString();
reader.ReadToNextSibling("Url"); // Move to Url element.
string url = reader.ReadContentAsString();
reader.ReadEndElement(); // Read end element of Url.
reader.ReadEndElement(); // Read end element of Link. Keep your mind nimble ;-)
}
reader.ReadEndElement(); // Read end element of Folder.
}
}
private bool IsMatch(string name)
{
if (this.reader.HasAttributes)
{
其他回答(1)
0
如果xml文档不是很大，你可以用XmlDocument用XPath查询。
