maven WEB项目启动没问题访问页面就报错:org.apache.jasper.JasperException: Unable to compile class for JSP

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博主：fendo
文章：maven WEB项目启动没问题访问页面就报错:org.apache.jasper.JasperException: Unable to compile class for JSP
博文地址：http://blog.youkuaiyun.com/u011781521/article/details/53713162

一、问题描述

eclipse通过maven插件创建一个WEB项目通过内嵌Tomcat加载项目，启动没问题，一访问页面就报错提示无法将jsp编译为class文件:

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)

错误的原因为：tomcat6不支持jdk1.8版本

我pom.xml文件里明明配置的是Tomcat7啊!!  怎么是tomcat6运行去了。。。

[html]  view plain  copy

1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
2.   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  
3.   <modelVersion>4.0.0</modelVersion>  
4.   <groupId>com.fendo.sse</groupId>  
5.   <artifactId>com</artifactId>  
6.   <packaging>war</packaging>  
7.   <version>0.0.1-SNAPSHOT</version>  
8.   <name>com Maven Webapp</name>  
9.   <url>http://maven.apache.org</url>  
10.   <dependencies>  
11.     <dependency>  
12.       <groupId>junit</groupId>  
13.       <artifactId>junit</artifactId>  
14.       <version>3.8.1</version>  
15.       <scope>test</scope>  
16.     </dependency>  
17.       
18.        <!-- 加入ServletAPI -->  
19.         <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->  
20.         <dependency>  
21.             <groupId>javax.servlet</groupId>  
22.             <artifactId>servlet-api</artifactId>  
23.             <version>2.3</version>  
24.             <scope>provided</scope>  
25.         </dependency>  
26.       
27.   </dependencies>  
28.   <build>  
29.     <finalName>com</finalName>  
30.     <plugins>  
31.       <plugin>  
32.                 <groupId>org.codehaus.mojo</groupId>  
33.                 <artifactId>tomcat-maven-plugin</artifactId>  
34.                 <version>1.1</version>  
35.                 <configuration>  
36.                     <port>8080</port>  
37.                     <uriEncoding>UTF-8</uriEncoding>  
38.                     <url>http://localhost:8080/manager/html</url>  
39.                     <server>tomcat7</server>  
40.                 </configuration>  
41.             </plugin>  
42.     </plugins>  
43.   </build>  
44. </project>  

注意: 如果你的版本是tomcat7-maven-plugin  2.0 的话，由于它不支持 jdk 1.8，所以把它换成 tomcat7-maven-plugin  2.2就行了。

二、解决方法

找了下发现原来是这里出了问题!!!

把它改为: tomcat7:run 就行了