在解析以下XML时,首先遇到了url-malformed-exception
。因此,在代码中,我没有使用xml字符串,而是使用了以下代码
Document doc=dBuilder.parse(newInputSource(newByteArrayInputStream(xmlResponse.getBytes("utf-8"))));
根据这个链接
java.net.MalformedURLException: no protocol
现在我得到的节点值为 null。如何克服这个问题?在 for 循环的代码中,我已经说明了节点为空值的位置。
我正在使用以下代码:
try {
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(new InputSource(new ByteArrayInputStream(xmlResponse.getBytes("utf-8"))));
//read this - https://dev59.com/2WYr5IYBdhLWcg3wTYcQ
doc.getDocumentElement().normalize();
System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
XPath xPath = XPathFactory.newInstance().newXPath()
String expression = "/GetMatchingProductForIdResponse/GetMatchingProductForIdResult/Products/Product"
System.out.println(expression)
NodeList nodeList = (NodeList) xPath.compile(expression).evaluate(doc, XPathConstants.NODESET)
System.out.println("the size will be of the node list ${nodeList.getLength()}");
for (int i = 0; i < nodeList.getLength(); i++) {
System.out.println(nodeList.item(i).getNodeValue()+"the value coming will be "); // here i am getting value null for each node
}
} catch (Exception e) {
e.printStackTrace(System.out);
}
解析XML:
<?xml version="1.0"?>
<GetMatchingProductForIdResponse xmlns="http://mws.amazonservices.com/schema/Products/2011-10-01">
<GetMatchingProductForIdResult Id="H5-9OSH-9NZ7" IdType="SellerSKU" status="Success">
<Products xmlns="http://mws.amazonservices.com/schema/Products/2011-10-01" xmlns:ns2="http://mws.amazonservices.com/schema/Products/2011-10-01/default.xsd">
<Product>
<Identifiers>
<MarketplaceASIN>
<MarketplaceId>ATVPDKIKX0DER</MarketplaceId>
<ASIN>B004FQLAH2</ASIN>
</MarketplaceASIN>
</Identifiers>
<AttributeSets>
<ns2:ItemAttributes xml:lang="en-US">
<ns2:Binding>Office Product</ns2:Binding>
<ns2:Brand>Konica-Minolta</ns2:Brand>
<ns2:Color>Y</ns2:Color>
<ns2:CPUSpeed Units="MHz">200</ns2:CPUSpeed>
<ns2:Department>Printers</ns2:Department>
<ns2:Feature>Amp Up your Output - The magicolor 3730DN business color laser printer outputs at speeds up to 25 ppm in both color and B&W which means you can keep up in just about any business environment.</ns2:Feature>
<ns2:Feature>Unparalleled Image Quality - High resolution 2400 (equivalent) x 600 dpi printing for great color and clarity in both images and text.</ns2:Feature>
<ns2:Feature>Happy Planet, Outstanding Printing - Simitri HD Toner with Biomass allows for outstanding printing with the environment in mind.</ns2:Feature>
<ns2:Feature>Connect quicker - Why wait? Standard Ethernet and high-speed USB 2.0 gets you connected faster than ever before.Specifications</ns2:Feature>
<ns2:Feature>Type - Full-Color Laser Printer</ns2:Feature>
<ns2:ItemDimensions>
<ns2:Height Units="inches">13.62</ns2:Height>
<ns2:Length Units="inches">20.47</ns2:Length>
<ns2:Width Units="inches">16.50</ns2:Width>
<ns2:Weight Units="pounds">56.22</ns2:Weight>
</ns2:ItemDimensions>
<ns2:IsAutographed>false</ns2:IsAutographed>
<ns2:IsMemorabilia>false</ns2:IsMemorabilia>
<ns2:Label>Konica</ns2:Label>
<ns2:ListPrice>
<ns2:Amount>449.00</ns2:Amount>
<ns2:CurrencyCode>USD</ns2:CurrencyCode>
</ns2:ListPrice>
<ns2:Manufacturer>Konica</ns2:Manufacturer>
<ns2:Model>A0VD017</ns2:Model>
<ns2:NumberOfItems>1</ns2:NumberOfItems>
<ns2:OperatingSystem>Windows XP, Vista, 7</ns2:OperatingSystem>
<ns2:OperatingSystem>Mac X 10.2.8, 10.6+</ns2:OperatingSystem>
<ns2:PackageDimensions>
<ns2:Height Units="inches">19.00</ns2:Height>
<ns2:Length Units="inches">24.20</ns2:Length>
<ns2:Width Units="inches">22.00</ns2:Width>
<ns2:Weight Units="pounds">65.30</ns2:Weight>
</ns2:PackageDimensions>
<ns2:PackageQuantity>1</ns2:PackageQuantity>
<ns2:PartNumber>A0VD017</ns2:PartNumber>
<ns2:ProductGroup>CE</ns2:ProductGroup>
<ns2:ProductTypeName>PRINTER</ns2:ProductTypeName>
<ns2:Publisher>Konica</ns2:Publisher>
<ns2:SmallImage>
<ns2:URL>http://ecx.images-amazon.com/images/I/21qN3BU-BHL._SL75_.jpg</ns2:URL>
<ns2:Height Units="pixels">75</ns2:Height>
<ns2:Width Units="pixels">75</ns2:Width>
</ns2:SmallImage>
<ns2:Studio>Konica</ns2:Studio>
<ns2:Title>Konica Minolta Magicolor 3730DN Color Laser Printer 24PPM 2400X600DPI ENET USB 2.0</ns2:Title>
</ns2:ItemAttributes>
</AttributeSets>
<Relationships/>
<SalesRankings/>
</Product>
</Products>
</GetMatchingProductForIdResult>
<ResponseMetadata>
<RequestId>0b508338-3afe-4178-adc4-60c9c8448987</RequestId>
</ResponseMetadata>
</GetMatchingProductForIdResponse>
NodeList nodeList = xPath.compile(expression).evaluate(doc,XPathConstants.NODESET)
,节点列表的大小为零,为什么?我该如何获取节点ns2:binding的文本内容? - Deepak