关于网友提出的“向程序发送命令时出现问题 mycat 启动日志出现这个问题”问题疑问，本网通过在网上对“向程序发送命令时出现问题 mycat 启动日志出现这个问题”有关的相关答案进行了整理，供用户进行参考，详细问题解答如下：
问题：向程序发送命令时出现问题 mycat 启动日志出现这个问题
描述:OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=64M; support was removed in 8.0
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.opencloudb.MycatStartup.main(MycatStartup.java:46)
Caused by: org.opencloudb.config.util.ConfigException: org.xml.sax.SAXParseException; lineNumber: 23; columnNumber: 1; XML document structures must start and end within the same entity.
at org.opencloudb.config.loader.xml.XMLSchemaLoader.load(XMLSchemaLoader.java:112)
at org.opencloudb.config.loader.xml.XMLSchemaLoader.(XMLSchemaLoader.java:67)
at org.opencloudb.config.loader.xml.XMLSchemaLoader.(XMLSchemaLoader.java:71)
at org.opencloudb.ConfigInitializer.(ConfigInitializer.java:63)
at org.opencloudb.MycatConfig.(MycatConfig.java:69)
at org.opencloudb.MycatServer.(MycatServer.java:103)
at org.opencloudb.MycatServer.(MycatServer.java:72)
... 1 more
Caused by: org.xml.sax.SAXParseException; lineNumber: 23; columnNumber: 1; XML document structures must start and end within the same entity.
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:1465)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.endEntity(XMLDocumentFragmentScannerImpl.java:898)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.endEntity(XMLDocumentScannerImpl.java:563)
at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.endEntity(XMLEntityManager.java:1399)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(XMLEntityScanner.java:1917)
at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.peekChar(XMLEntityScanner.java:507)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2713)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:504)
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.DOMParser.parse(DOMParser.java:243)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:339)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121)
at org.opencloudb.config.util.ConfigUtil.getDocument(ConfigUtil.java:114)
解决方案1:schema配置文件的问题
解决方案2:XML文件里格式有错误!
以上介绍了“向程序发送命令时出现问题 mycat 启动日志出现这个问题”的问题解答，希望对有需要的网友有所帮助。
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