jdk8和tomcat7出现jsp无法编译问题：Unable to compile class for JSP 2018-08-04 测试项目运行

最新推荐文章于 2021-12-21 16:58:38 发布

转载最新推荐文章于 2021-12-21 16:58:38 发布 · 393 阅读

本文解决了一个在Tomcat7中遇到的JSP编译错误问题，该问题与Java类文件引用的类型无法解析有关。通过更新ECJ（Eclipse Compiler for Java）到较新版本，成功解决了这一问题。

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org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 1 in the generated java file
The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files

An error occurred at line: 1 in the generated java file
The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files

Stacktrace:
	org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
	org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:331)
	org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:469)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
	org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
	org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:389)
	net.jeeshop.core.filter.XssFilter.doFilter(XssFilter.java:28)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)

这个错误有几种可能性，如果你检查servlet相关jar包无冲突问题，可以尝试如下方法

同样是tomcat7，老一点的版本出现问题，但是新一点的版本却没有这个问题，只需替换tomcat种的一个jar即可。

解决方式：下载最新tomcat7，把lib目录下的ecj架包（应该是4.4.X版本）替换老tomcat7 lib目录下的3.x版本即可