到已编译jsp（servlet）的url映射不起作用

我直接在Tomcat的webapp目录中编写了一个简单的web应用程序，并通过localhost url访问了hello.jsp文件。我现在要做的是将url映射到上一步编译的servlet类。我的web.xml代码如下所示：

我希望能够指向以“/hi”结尾的url并运行已编译的jsp。任何帮助都将不胜感激

<welcome-file-list>
    <welcome-file>hello.jsp</welcome-file>
</welcome-file-list>

<servlet>
    <servlet-name>hi</servlet-name>
        <servlet-class>org.apache.jsp.hello_jsp</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>hi</servlet-name>
    <url-pattern>/hi</url-pattern>
</servlet-mapping>

---

这的确是不对的。您需要使用

而不是

。毕竟，源代码中只有一个JSP文件，而不是servlet类

你好
/hello.jsp
你好
/嗨

type Exception report

message Error instantiating servlet class org.apache.jsp.hello_jsp

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

exception

javax.servlet.ServletException: Error instantiating servlet class org.apache.jsp.hello_jsp
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    java.lang.Thread.run(Thread.java:722)
root cause

java.lang.ClassNotFoundException: org.apache.jsp.hello_jsp
    org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
    org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    java.lang.Thread.run(Thread.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.35 logs.