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Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 6; 不允许有匹配 "[xX][mM][lL]" 的处理指令目标。
at [图片]com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPIData(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanPIData(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPI(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at [图片]com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:251)
... 31 more这两天在整合mybatis项目时，遇到了这个问题，后来查了资料才发现原来如此。
问题：xml文件的第一行不允许有空格或是空行
问题解决 ：
查看了项目的所有xml文件，发现spring-mybatis.xml 配置文件的首行是空的，删除该行即可（确保xml的第一句<?xml version="1.0" encoding="UTF-8"?>之前没有空格或空行即可）