本文探讨了在JSP文件编译过程中遇到的常见错误：The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory。文章详细分析了错误原因，通常源于JspFactory实现类的缺失或不兼容的JSP API版本，并提供了排查和解决策略，包括检查JSP API版本和确保正确的JspFactory实现。
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 23 in the generated Java file
The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.Java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:423)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:308)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
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