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跟著老師寫但是報錯，什么鬼?。rg.dom4j.DocumentException: Error on line 1 of document : 前言中不允許有內容。 Nested exception: 前言中不允許有內容。

org.dom4j.DocumentException:?Error?on?line?1?of?document??:?前言中不允許有內容。?Nested?exception:?前言中不允許有內容。
	at?org.dom4j.io.SAXReader.read(SAXReader.java:482)
	at?org.dom4j.io.SAXReader.read(SAXReader.java:343)
	at?com.dunizb.util.MessageUtil.xmlToMap(MessageUtil.java:52)
	at?com.dunizb.servlet.WeixinServlet.doPost(WeixinServlet.java:43)
	at?javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
	at?javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at?org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
	at?org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at?org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at?org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at?org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at?org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
	at?org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at?org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
	at?org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
	at?org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at?org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	at?org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at?org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
	at?org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
	at?org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
	at?org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
	at?org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
	at?java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at?java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at?org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at?java.lang.Thread.run(Thread.java:745)
Nested?exception:?
org.xml.sax.SAXParseException;?lineNumber:?1;?columnNumber:?1;?前言中不允許有內容。
	at?com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
	at?com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
	at?com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:400)
	at?com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327)
	at?com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1438)
	at?com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:999)
	at?com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
	at?com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:118)
	at?com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
	at?com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
	at?com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
	at?com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at?com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
	at?com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
	at?org.dom4j.io.SAXReader.read(SAXReader.java:465)
	at?org.dom4j.io.SAXReader.read(SAXReader.java:343)
	at?com.dunizb.util.MessageUtil.xmlToMap(MessageUtil.java:52)
	at?com.dunizb.servlet.WeixinServlet.doPost(WeixinServlet.java:43)
	at?javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
	at?javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at?org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
	at?org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at?org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at?org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at?org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at?org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
	at?org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at?org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
	at?org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
	at?org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at?org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	at?org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at?org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
	at?org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
	at?org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
	at?org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
	at?org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
	at?java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at?java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at?org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at?java.lang.Thread.run(Thread.java:745)
Nested?exception:?org.xml.sax.SAXParseException;?lineNumber:?1;?columnNumber:?1;?前言中不允許有內容。
	at?com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
	at?com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
	at?com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:400)
	at?com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327)
	at?com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1438)
	at?com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:999)
	at?com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
	at?com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:118)
	at?com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
	at?com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
	at?com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
	at?com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at?com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
	at?com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
	at?org.dom4j.io.SAXReader.read(SAXReader.java:465)
	at?org.dom4j.io.SAXReader.read(SAXReader.java:343)
	at?com.dunizb.util.MessageUtil.xmlToMap(MessageUtil.java:52)
	at?com.dunizb.servlet.WeixinServlet.doPost(WeixinServlet.java:43)
	at?javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
	at?javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at?org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
	at?org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at?org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at?org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at?org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at?org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
	at?org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at?org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
	at?org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
	at?org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at?org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	at?org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at?org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
	at?org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
	at?org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
	at?org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
	at?org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
	at?java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at?java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at?org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at?java.lang.Thread.run(Thread.java:745)


正在回答

2 回答

請問你解決了嗎？我今天也遇到了這個問題，照著書本寫的也出現了這個錯誤

0 回復 有任何疑惑可以回復我~

at?com.dunizb.util.MessageUtil.xmlToMap(MessageUtil.java:52) at?com.dunizb.servlet.WeixinServlet.doPost(WeixinServlet.java:43)

編譯器幫你定位了問題在com.dunizb.util.MessageUtil第52行，以及com.dunizb.servlet.WeixinServlet第43行

你自己檢查一下


0 回復 有任何疑惑可以回復我~

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跟著老師寫但是報錯，什么鬼?。rg.dom4j.DocumentException: Error on line 1 of document : 前言中不允許有內容。 Nested exception: 前言中不允許有內容。

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