如何解决Unable to compile class for JSP

ゝ一纸荒年。 2022-11-20 10:57 152阅读 0赞

用eclipse新搭建了一个项目，项目启动成功后报了如下错误：

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

**org.apache.jasper.JasperException: Unable to compile class for JSP:** 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:92) org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330) org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439) org.apache.jasper.compiler.Compiler.compile(Compiler.java:349) org.apache.jasper.compiler.Compiler.compile(Compiler.java:327) org.apache.jasper.compiler.Compiler.compile(Compiler.java:314) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.29 logs.

![如何解决Unable to compile class for JSP][Unable to compile class for JSP]

新建的项目结构如下，只搭建了简单的webapp工程

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 1]启动项目后，后台打出错误日志，同时浏览器中出现错误页面

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 2]

分析浏览器中的错误页面可以看到此时运行的tomcat版本是6.0.29，而我们项目中用到的jre是1.8，所以猜测这应该是tomcat与jre版本不兼容引起的

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 3]

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 4]

给项目切换高版本tomcat，这里用到的是tomcat8.0

注意：电脑中要已经事先安装好tomcat8.0，如未安装请官网下载

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 5]

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 6]

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 7]

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 8]

可以看到项目正常启动了，原来就是tomcat与Jre版本不兼容而报出的错误

![如何解决Unable to compile class for JSP][Unable to compile class for JSP 9]

[Unable to compile class for JSP]: /images/20221120/3086fac192a943aea3b8f33e2b343f36.png
[Unable to compile class for JSP 1]: /images/20221120/317f6511388b4c78a620c90c37b1d8f3.png
[Unable to compile class for JSP 2]: /images/20221120/b1e7a93e7f17460d8f2cb6101d0f1552.png
[Unable to compile class for JSP 3]: https://img-blog.csdnimg.cn/img_convert/a6bd49dc61334377acd0d3f3d3757afb.png
[Unable to compile class for JSP 4]: https://img-blog.csdnimg.cn/img_convert/d2f73a62bb98e42ccc318a69a7675cfe.png
[Unable to compile class for JSP 5]: https://img-blog.csdnimg.cn/img_convert/ba7c4185e35304a967e54c1ed5ccd696.png
[Unable to compile class for JSP 6]: https://img-blog.csdnimg.cn/img_convert/f5fb2edf25ca5f918dfc3d8368a6ad65.png
[Unable to compile class for JSP 7]: https://img-blog.csdnimg.cn/img_convert/6995ab4206ce4b6f5919f85468aa792f.png
[Unable to compile class for JSP 8]: https://img-blog.csdnimg.cn/img_convert/1f1e203046c63c0cf19284aafcf9f50c.png
[Unable to compile class for JSP 9]: https://img-blog.csdnimg.cn/img_convert/f089f01c2db2b19c6c92862317e25104.png