idea?通過maven插件創建一個WEB項目通過內嵌Tomcat加載項目，啟動沒問題，一訪問頁面就報錯提示無法將jsp編譯為class文件:

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HTTP Status 500 -

---

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 filesStacktrace: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)com.atchina.servlet.MyServlet.doGet(MyServlet.java:13)javax.servlet.http.HttpServlet.service(HttpServlet.java:617)javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

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

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錯誤的原因為：tomcat6不支持jdk1.8版本

maven默認使用的是Tomcat6，而我使用的是JDK1.8，Tomcat6不能與JDK1.8一起使用。只要將Tomcat的版本調高就行了。

<build><finalName>maven_web</finalName><pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --><plugins><plugin><artifactId>maven-clean-plugin</artifactId><version>3.1.0</version></plugin><!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --><plugin><artifactId>maven-resources-plugin</artifactId><version>3.0.2</version></plugin><plugin><artifactId>maven-compiler-plugin</artifactId><version>3.8.0</version></plugin><plugin><artifactId>maven-surefire-plugin</artifactId><version>2.22.1</version></plugin><plugin><artifactId>maven-war-plugin</artifactId><version>3.2.2</version></plugin><plugin><artifactId>maven-install-plugin</artifactId><version>2.5.2</version></plugin><plugin><artifactId>maven-deploy-plugin</artifactId><version>2.8.2</version></plugin><plugin><groupId>org.apache.tomcat.maven</groupId><artifactId>tomcat7-maven-plugin</artifactId><version>2.2</version></plugin></plugins></pluginManagement></build>

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然后將maven命令改為Tomcat7:run就行了

總結

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