&引用;TransformerException:需要一个位置步骤;在androidxpath中
我一直在尝试从xml文件中提取数据,但我一直遇到这个错误,我不确定我做错了什么&引用;TransformerException:需要一个位置步骤;在androidxpath中,android,xml,xpath,Android,Xml,Xpath,我一直在尝试从xml文件中提取数据,但我一直遇到这个错误,我不确定我做错了什么 10-23 14:20:29.250: WARN/System.err(3541): --------------- linked to ------------------ 10-23 14:20:29.250: WARN/System.err(3541): javax.xml.xpath.XPathExpressionException: javax.xml.transform.TransformerExcept
10-23 14:20:29.250: WARN/System.err(3541): --------------- linked to ------------------
10-23 14:20:29.250: WARN/System.err(3541): javax.xml.xpath.XPathExpressionException: javax.xml.transform.TransformerException: A location step was expected following the '/' or '//' token.
这是我的密码:
String pill;
URL url = new URL("file:///mnt/sdcard/cpdata/cpxml.xml");
InputSource xml = new InputSource(url.openStream());
XPath xpath = XPathFactory.newInstance().newXPath();
pill = xpath.evaluate("//data/monday/p1/",xml);
pills.add(pill);
Log.d("PILLLLLLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS", pill);
tv.setText(pill + "hi");
这是我的xml文档:
-<data>
-<monday>
<p1>test1</p1>
<p2>test1</p2>
</monday>
-<tuesday>
<p1>test1</p1>
<p2>test1</p2>
</tuesday>
-<wednesday>
<p1>1.0</p1>
<p2>test1</p2>
</wednesday>
-<thursday>
<p1>test1</p1>
<p2>test1</p2>
</thursday>
-<friday>
<p1>test1</p1>
<p2>test1</p2>
</friday>
-<saturday>
<p1>test1</p1>
<p2>test1</p2>
</saturday>
-<sunday>
<p1>test1</p1>
<p2>test1</p2>
</sunday>
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问题显而易见:
data/monday/p1/
pill = xpath.evaluate("//data/monday/p1",xml);
pill=xpath.evaluate(“//data/monday/p1/”,xml)
使用的XPath表达式:
data/monday/p1/
pill = xpath.evaluate("//data/monday/p1",xml);
以“/”
结尾,因此在语法上是非法的
使用:
data/monday/p1/
pill = xpath.evaluate("//data/monday/p1",xml);
非常感谢你!我知道这一定很简单,我就是想不出是什么。