JSP 中的运行时异常

Question

我的 JSP 代码如下

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page import="Modelo.*" %>

<%
    Personaje p = new Personaje("","","");
%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <h1>Lista de personajes</h1>

        
        <p>Hola</p>
            
    </body>
</html>

进口class Personaje 是

package Modelo;

public class Personaje 
{
    String apellido;
    String fechaNacimiento;
    String nacionalidad;
    
    public Personaje(String apellido, String fechaNacimiento, String nacionalidad)
    {
        this.apellido = apellido;
        this.fechaNacimiento = fechaNacimiento;
        this.nacionalidad = nacionalidad;
    }

    public String getApellido() {
        return apellido;
    }

    public String getFechaNacimiento() {
        return fechaNacimiento;
    }

    public String getNacionalidad() {
        return nacionalidad;
    }

    public void setApellido(String apellido) {
        this.apellido = apellido;
    }

    public void setFechaNacimiento(String fechaNacimiento) {
        this.fechaNacimiento = fechaNacimiento;
    }

    public void setNacionalidad(String nacionalidad) {
        this.nacionalidad = nacionalidad;
    }
    
}

尝试运行 JSP 时出现运行时异常。 我使用的是 Glassfish 服务器 5.1.0 和 Netbeans 11.3，我检查了服务器日志并出现了下一个错误：

StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception java.lang.RuntimeException: at Modelo.Personaje.(Personaje.java:1) at org.apache.jsp.lista_jsp._jspService(lista_jsp.java:50) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:750) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper .java:370) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:432) at org.apache.jasper.servlet.JspServlet.service(JspServlet.Z93 F725A07423FE1C889F448B33D21F46Z:336) at javax.servlet.http.HttpServlet.service(HttpServlet.java:750) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1540) at org.apache.catalina.core.StandardWrapperValve .invoke(StandardWrapperValve.java:217) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:119) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:611) at org. apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:550) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.Z93F725A07423FE1C 889F448B33D21F46Z:75) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:114) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332) at org.apache.catalina.connector .CoyoteAdapter.service(CoyoteAdapter.java:199) at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:439) at com.sun.enterprise.v3.services.impl.ContainerMapper .service(ContainerMapper.java:144) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:182) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.Z93F 725A07423FE1C889F448B33D21F46Z:156) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:218) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:95) at org.glassfish. grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:260) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:177) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java: 109) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:88) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:53) at org.glassfish.grizzly.nio.transport.TCPNIOTransport .fireIOEvent(TCPNIOTrans port.java:515) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:89) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:94) at org.glassfish.grizzly .strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:33) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:114) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork( AbstractThreadPool.java:569) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:549) at java.lang.Thread.run(Thread.java:748)

我目前是 JSP 的新手，但是如果我删除下面的代码部分，我不会收到任何错误，并且一位朋友在他的 PC 上运行我的项目没有任何错误。

<%
    Personaje p = new Personaje("","","");
%>