更新 1:新的验证方法引发新错误,请参见下文。
更新2:我已经用xml spy 检查了xml文件。没有错误。
希望有人能看出我错在哪里。
我目前正在尝试针对包含另一个 xsd 的 xsd 验证 xml 文件。我不知道我的 xsds 或 java 代码是否有问题。我没有存储 xml/xsd 文件,我从服务器获取它们作为 base64 字符串。希望有人能帮忙。
我收到以下错误:
org.xml.sax.SAXParseException; lineNumber: 81; columnNumber: 104; src-resolve: Cannot resolve the name 'ServiceSpecificationSchema:ServiceIdentifier' to a(n) 'type definition' component.
-ServiceSpecificationSchema.xsd
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ServiceSpecificationSchema="http://example.org/ServiceSpecificationSchema.xsd" targetNamespace="http://example.org/ServiceSpecificationSchema.xsd" version="1.0" xml:lang="EN">
<include schemaLocation="ServiceBaseTypesSchema.xsd"/>
<element name="serviceSpecification" type="ServiceSpecificationSchema:ServiceSpecification">
<unique name="serviceDataModelTypeKey">
<selector xpath=".//xs:*"/>
<field xpath="@name"/>
</unique>
<keyref name="serviceDataModelReturnValueTypeKeyRef" refer="ServiceSpecificationSchema:serviceDataModelTypeKey">
<selector xpath=".//ServiceSpecificationSchema:returnValueType"/>
<field xpath="ServiceSpecificationSchema:typeReference"/>
</keyref>
<keyref name="serviceDataModelParameterTypeTypeKeyRef" refer="ServiceSpecificationSchema:serviceDataModelTypeKey">
<selector xpath=".//ServiceSpecificationSchema:parameterType"/>
<field xpath="ServiceSpecificationSchema:typeReference"/>
</keyref>
</element>
<complexType name="ServiceSpecification">
<all>
<element name="id" type="ServiceSpecificationSchema:ServiceIdentifier" minOccurs="1" maxOccurs="1"/>
.....
ServiceBaseTypeSchema:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ServiceSpecificationSchema="http://example.org/ServiceSpecificationSchema.xsd" targetNamespace="http://example/ServiceSpecificationSchema.xsd" version="1.0" xml:lang="EN">
...
<simpleType name="ServiceIdentifier">
<restriction base="string"/>
</simpleType>
...
</schema>
Java validator
public void validate(String inputXml, String XSD, String XSD2)
throws SAXException, IOException {
try {
byte[] decoded = Base64.decodeBase64(XSD);
XSD = new String(decoded, "UTF-8");
byte[] decoded2 = Base64.decodeBase64(XSD2);
XSD2 = new String(decoded2, "UTF-8");
SchemaFactory factory = SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
Schema schema = factory.newSchema(new SAXSource[]
{
(new SAXSource(new InputSource(new StringReader(XSD)))),
(new SAXSource(new InputSource(new StringReader(XSD2))))
});
Validator validator = schema.newValidator();
validator.validate(new StreamSource(new StringReader(inputXml)));
} catch (SAXException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
我找到了另一种可能的解决方案,但仍然不起作用。使用以下方法,会抛出异常,并根据 xml 验证 xsd。异常的行取决于所使用的 xml。在底部的示例中,错误位于第 2 行。 -> 错误:找不到元素 'ServiceSpecificationSchema:serviceSpecification' 的声明
我认为:1.我的java代码有问题或者2.所有的xml文件都有问题。
新的 Java validator :
byte[] decoded = Base64.decodeBase64(XSD);
byte[] decoded2 = Base64.decodeBase64(XSD2);
SchemaFactory factory = SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
InputStream impFis = new ByteArrayInputStream(decoded2);
InputStream mainFis = new ByteArrayInputStream(decoded);
Source main = new StreamSource(mainFis);
Source imp = new StreamSource(impFis);
Source[] schemaFiles = new Source[] {imp, main};
Schema schema = factory.newSchema(schemaFiles);
Validator validator = schema.newValidator();
validator.validate(new StreamSource(new StringReader(inputXml)));
示例 XML 文件:
<?xml version="1.0" encoding="UTF-8"?>
<ServiceSpecificationSchema:serviceSpecification
xmlns:ServiceSpecificationSchema="http://example.org/ServiceSpecificationSchema.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://example.org/ServiceSpecificationSchema.xsd">
.....
最佳答案
终于我找到了解决办法。标准方法不会从一开始就解析包含或导入的文件。为了解析包含的文件,我使用了 LSResourceResolver。
这对我有用:
@Service
public class ResourceResolverImpl implements LSResourceResolver {
private ILoadFromSRService iLoadFromSRService;
@Autowired
public ResourceResolverImpl(ILoadFromSRService iLoadFromSRService){
this.iLoadFromSRService = iLoadFromSRService;
}
public LSInput resolveResource(String type,
String namespaceURI,
String publicId,
String systemId,
String baseURI) {
String string =iLoadFromSRService.getServiceBaseTypeSchema();
string = string.replace("\n", "").replace("\t", "");
InputStream resourceAsStream = new ByteArrayInputStream( string.getBytes());
return new LSInputImpl(publicId, systemId, resourceAsStream);
}
}
关于Java:针对包含另一个 xsd 的 xsd 进行字符串 xml 验证,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46458397/