日期:2014-05-20  浏览次数:20911 次

我又来送分了!!! 搞不懂 equal symbol expected 这个错误的原因.
大家好, 我用Spring 的MVC框架.做了一个简单的测试项目 ,但是正常启动Tomcat后,然后连接服务就报错如下:
严重: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /hello.jsp(2,23) equal symbol expected
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:86)
at org.apache.jasper.compiler.Parser.parseAttribute(Parser.java:193)
at org.apache.jasper.compiler.Parser.parseAttributes(Parser.java:143)
at org.apache.jasper.compiler.Parser.parseAttributes(Parser.java:156)
at org.apache.jasper.compiler.ParserController.getPageEncodingForJspSyntax(ParserController.java:434)
at org.apache.jasper.compiler.ParserController.determineSyntaxAndEncoding(ParserController.java:377)
at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:169)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:146)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)

然后我在WEB-INF 目录下放了两个 xml文档:
一个是 web.xml文档 内容如下:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
 xmlns:xsi="http://www.w3.org/2001/XMLScheme-instance"
 xsi:schemeLocation="http://java.sun.com/xml/ns/j2ee
 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <session-config>
  <session-timeout>30</session-timeout>
  </session-config>
  <servlet>
  <servlet-name>dispatcherServlet</servlet-name>
  <servlet-class>
  org.springframework.web.servlet.DispatcherServlet
  </servlet-class>
  <init-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>/WEB-INF/mvc-config.xml</param-value>
  </init-param>