Tomcat8 启动报错The JSP specification requires that an attribute name is preceded by whitespace解决

    最近使用tomcat8新建一个新页面的时候出现一个奇怪的错误：

    严重: Servlet.service() for servlet [jsp] in context with path [/WebTest] threw exception [/index.jsp (line: [1], column: [84]) The JSP specification requires that an attribute name is preceded by whitespace] with root cause

org.apache.jasper.JasperException: /index.jsp (line: [1], column: [84]) The JSP specification requires that an attribute name is preceded by whitespace
	at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)
	at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:291)
	at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:97)
	at org.apache.jasper.compiler.Parser.parseAttributes(Parser.java:170)
	at org.apache.jasper.compiler.Parser.parseAttributes(Parser.java:196)
	at org.apache.jasper.compiler.ParserController.getPageEncodingForJspSyntax(ParserController.java:460)
	at org.apache.jasper.compiler.ParserController.determineSyntaxAndEncoding(ParserController.java:401)
	at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:200)
	at org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:127)
	at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:197)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:350)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:595)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)

 空白jsp页面代码如下：

    页面没有任何特殊的地方，经过一番查找发现是：contentType="text/html; charset=UTF-8" 中间的空格导致的，去掉就好了，网上还有同类问题是，language和import之间没有空格，加上空格就好了，像这种问题在tomcat7及以下版本没有问题，在tomcat8版本下就有问题，连注释掉的内容中都会报错，所以需要特别注意。