HTTP状态500错误

Question

我收到类似的错误

org.apache.jasper.JasperException: Unable to compile class for JSP: 
An error occurred at line: 6 in the generated java file
Only a type can be imported. com.sixpanview.getcoordinate resolves to a package
An error occurred at line: 7 in the generated java file
Only a type can be imported. com.sixpanview.fileReader resolves to a package
An error occurred at line: 8 in the generated java file
Only a type can be imported. com.sixpanview.cookieInfo resolves to a package

和在其使用线得到错误getcoordinate ， fileReader和cookieInfo在的.jsp程序和堆栈跟踪是

at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
        at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
        at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:356)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
        at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:679)

我为什么得到它？

Answer 1

您不能导入package 。 您需要在该包中导入classes 。

在导入语句中，将导入替换为：-

com.sixpanview.getcoordinate.*;
com.sixpanview.fileReader.*;
com.sixpanview.cookieInfo.*;

我认为这些软件包下没有其他子软件包。

.*将导入该包下的所有类。 理想情况下，您不应该这样做。 如果您知道它们是什么，则从这些包中import特定的类。

喜欢： -

import java.util.List; 

优于：-

import java.util.*;

PS：-请不要在内容中使用bold case ，除非突出显示确实非常重要。 它很难阅读。 并在将来发布异常的同时发布您的代码段。