使用DocumentBuilder对模式进行验证

我试图根据XSD模式验证某些XML输入。解析器的工作原理，但是当我在模式中挂钩时，我会在下面得到例外。我已经用外部验证器验证了测试输入，所以我已经消除了这一点。有谁知道如何设置一个生成器来验证这种方式？使用DocumentBuilder对模式进行验证

以下是构建器设置代码。

final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 
factory.setIgnoringElementContentWhitespace(true); 
factory.setNamespaceAware(true); 
final SchemaFactory sf = 
     SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI); 

factory.setValidating(true); 
final Schema schema = sf.newSchema(new StreamSource(
     getClass().getResourceAsStream(SCHEMA_PATH))); 
factory.setSchema(schema); 

builder = factory.newDocumentBuilder(); 
builder.setErrorHandler(new DefaultErrorHandler());

而这是我得到的错误。

org.xml.sax.SAXParseException: Document is invalid: no grammar found. 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236) 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:172) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:382) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:316) 
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:177) 
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1794) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764) 
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148) 
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:250) 
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) 
    at com.casenet.external.mockclaims.ResponseScriptBuilder.build(ResponseScriptBuilder.java:54) 
    at com.casenet.external.mockclaims.ResponseScriptBuilderTest.buildFull(ResponseScriptBuilderTest.java:64) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:585) 
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:74) 
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:673) 
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:846) 
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1170) 
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125) 
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109) 
    at org.testng.TestRunner.runWorkers(TestRunner.java:1125) 
    at org.testng.TestRunner.privateRun(TestRunner.java:749) 
    at org.testng.TestRunner.run(TestRunner.java:600) 
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:317) 
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:312) 
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:274) 
    at org.testng.SuiteRunner.run(SuiteRunner.java:223) 
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) 
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) 
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1007) 
    at org.testng.TestNG.runSuitesLocally(TestNG.java:932) 
    at org.testng.TestNG.run(TestNG.java:868) 
    at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:110) 
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:205) 
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:174) 
    at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:85) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:585) 
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)

来源

2011-04-11 sblundy

请注意，架构是不可变的和线程安全的：你不必多次加载它，只是它缓存在一个静态字段。 – 2012-12-12 10:03:32

你并不需要调用：

setValidating(true);

如果你做到以下几点：

documentBuilderFactory.setSchema(schema);

从setSchema(Schema) javadocs：

这种处理将生效即使是如果isValida ting（）方法返回 false。

来源

2011-04-11 14:23:11

这也解决了我的问题，谢谢！ – 2012-12-12 10:02:53

使用DocumentBuilder对模式进行验证

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