Java JSP Servlet的org.apache.jasper.jaspereException

我正在创建我的第一个JSPServlet，但有一个问题我不明白。这个程序非常简单

我有两个部分：

• 添加新行的java+jsp
• 一个java+jsp来显示这些行

我正在加载url: http://localhost/test/addUf.jsp

填写字段后，单击按钮。数据库插入正常，我现在被重定向到 http://localhost/test/servletRecord

我的问题发生在它尝试加载此页面时：

05-Mar-2021 12:29:45.046 INFOS [Catalina-utility-1] org.apache.catalina.core.StandardContext.reload Le rechargement de ce contexte est terminé
org.apache.jasper.JasperException: org.apache.jasper.JasperException: Impossible de compiler la classe pour la JSP
    at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:605)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:423)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
    at servletRecord.doGet(servletRecord.java:71)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.jasper.JasperException: Impossible de compiler la classe pour la JSP
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:621)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:400)
    ... 37 more
Caused by: java.lang.IllegalArgumentException: Directive de page : valeur invalide pour import
    at org.apache.jasper.compiler.Node$PageDirective.validateImport(Node.java:619)
    at org.apache.jasper.compiler.Node$PageDirective.addImport(Node.java:599)
    at org.apache.jasper.compiler.Parser.parsePageDirective(Parser.java:366)
    at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:478)
    at org.apache.jasper.compiler.Parser.parseFileDirectives(Parser.java:1797)
    at org.apache.jasper.compiler.Parser.parse(Parser.java:141)
    at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244)
    at org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:127)
    at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:202)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:386)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:362)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:346)
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:605)
    ... 38 more
org.apache.jasper.JasperException: org.apache.jasper.JasperException: Impossible de compiler la classe pour la JSP
    at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:605)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:423)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
    at servletRecord.doGet(servletRecord.java:71)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.jasper.JasperException: Impossible de compiler la classe pour la JSP
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:621)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:400)
    ... 37 more
Caused by: java.lang.IllegalArgumentException: Directive de page : valeur invalide pour import
    at org.apache.jasper.compiler.Node$PageDirective.validateImport(Node.java:619)
    at org.apache.jasper.compiler.Node$PageDirective.addImport(Node.java:599)
    at org.apache.jasper.compiler.Parser.parsePageDirective(Parser.java:366)
    at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:478)
    at org.apache.jasper.compiler.Parser.parseFileDirectives(Parser.java:1797)
    at org.apache.jasper.compiler.Parser.parse(Parser.java:141)
    at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244)
    at org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:127)
    at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:202)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:386)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:362)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:346)
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:605)
    ... 38 more

这是我的档案： addUF.java

import javax.servlet.*;
import javax.servlet.http.*;
import javax.sql.*;
import java.sql.*;
import java.util.*;
import com.microsoft.sqlserver.jdbc.*;

public class addUf extends HttpServlet{ 
 
   public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException
    {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

        Connection connBDUtil = null;
        
        String id_config = request.getParameter("id_config").toString();
        String uf_code = request.getParameter("uf_code").toString();
        String libelle = request.getParameter("libelle").toString();
        String nbLits = request.getParameter("nbLits").toString();
        String actif = "1";
        if(request.getParameter("actif")== null) actif = "0";
        
        Statement stmt;
        try {SQLServerDataSource ds_BD_util = new SQLServerDataSource();
        
            ds_BD_util.setUser(db.UserBD_util);
            ds_BD_util.setPassword(db.PasswordBD_util);
            ds_BD_util.setServerName(db.ServerNameBD_util);
            ds_BD_util.setPortNumber(db.PortNumberBD_util);
            ds_BD_util.setDatabaseName(db.DatabaseNameBD_util);
            connBDUtil = ds_BD_util.getConnection();                
            
            System.out.println("Connected to the database");
            
            //test de validité
        
            String sqlText = "INSERT INTO LitsConfig (id_config, uf_code, libelle, nbLits, actif) " +
                    "VALUES ('" + id_config + "', '" + uf_code + "', '" + libelle + "', '" + nbLits + "', '" + actif +"')" ;
        
            System.out.println("SQL : " + sqlText);
        
            stmt = connBDUtil.createStatement();
        
            int i = stmt.executeUpdate(sqlText);
            System.out.println("query" + sqlText);
            if(i>0)
            {
                response.sendRedirect("servletRecord");
            }
            connBDUtil.close();
            System.out.println("Disconnected from database");
        } 
        catch (Exception e) 
        {
            e.printStackTrace();
        }
    }
}

addUF.jsp

<html>
<head></head>
<body>
    <form name="userform" method="post" action="addUf">
    <br><br><br>
        <table align="center" width="300px" style="background-color:#EDF6EA;border:1px solid #000000;">
        <tr><td colspan=2 style="font-weight:bold;" align="center">Ajouter une UF</td></tr>
        <tr><td colspan=2 align="center" height="10px"></td></tr>
            <tr>
                <td style="font-weight:bold;">Id config</td>
                <td><input type="text" name="id_config" value=""></td>
            </tr
            
            <tr>
                <td style="font-weight:bold;">UF</td>
                <td><input type="text" name="uf_code" value=""></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">Libellé</td>
                <td><input type="text" name="libelle" value=""></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">Nombre de lits</td>
                <td><input type="text" name="nbLits" value=""></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">actif</td>
                <td><input type="checkbox" name="actif" value=""></td>
            </tr>
            
            <tr>
                <td></td>
                <td><input type="submit" name="Submit" value="Ajouter" style="background-color:#49743D;font-weight:bold;color:#ffffff;"></td>
            </tr>
            <tr><td colspan=2 align="center" height="10px"></td></tr>
        </table>
    </form>
</body>
</html>

home.jsp

<%@ page language="java" import="java.util.*;"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
 <HEAD>
  <TITLE>Occupation des lits de pédiatrie</TITLE>
  
  <script language="javascript">
    function editrecord(id){       
        window.location.href="editServlet/"+id; 
      }


      function deleteRecord(id){       
        window.location.href="deleteUser/"+id; 
      }
</script>
 </HEAD>

 <BODY>
 <br>
<table align="center">
  
</table>
<br>
  <table width="600px"  align="center" style="background-color:#EDF6EA;border:1px solid #000000;">
    <tr><td colspan=9 align="center" height="10px"></td></tr>

    <tr><td colspan=9 align="center"><a href="addUf.jsp" style="font-weight:bold;color:#cc0000;">Ajouter une configuration d'UF</a></td></tr>
    <tr><td colspan=9 align="center" height="10px"></td></tr>

    <tr style="background-color:#7BA88B;font-weight:bold;">
     <td>Config Id</td>
     <td>Codes UF</td>
     <td>Libellé</td>
     <td>Nombre de lits</td>
     <td>Actif</td>  
     <td>Edit</td>
     <td>Delete</td>
    </tr>
  
    <%
    String bgcolor="";
    int count=0;
    List viewList = new ArrayList();
    Iterator  viewitrLitsConfig;
    
    if(request.getAttribute("litsConfigList")!=null && request.getAttribute("litsConfigList")!="")
    {
        List litsConfigList =  (ArrayList)request.getAttribute("litsConfigList");
        Iterator itrLitsConfig = litsConfigList.iterator();
        
        while(itrLitsConfig.hasNext())
        {
            
            if(count%2==0)
            {
             bgcolor = "#C8E2D1";
            }
            else
            {
                
                bgcolor = "#EAF8EF";
            }
            
            viewList = (ArrayList)itrLitsConfig.next();
            int id = Integer.parseInt(viewList.get(0).toString());
            viewitrLitsConfig = viewList.iterator();
            %>
            <tr style="background-color:<%=bgcolor%>;">
            <%  
            while(viewitrLitsConfig.hasNext())
            {
            
                %>
                <td><%=viewitrLitsConfig.next()%></td>
                
                <%
                    
            }
            count++;
            %>
                <td><input type="button" name="edit" value="Edit" style="background-color:#49743D;font-weight:bold;color:#ffffff;" onclick="editRecord(<%=id%>);" ></td>
                <td><input type="button" name="delete" style="background-color:#ff0000;font-weight:bold;;color:#ffffff;" value="Delete" onclick="deleteRecord(<%=id%>);"></td>
            </tr>
            <%
        }
    }
    if(count==0)
    {
        %>
        <tr><td colspan="9" align="center">&nbsp;</td></tr>
            <tr><td colspan="9" align="center">Aucun enregistrement disponible</td></tr>
        <%
    }
    %>
    <tr><td colspan=9 align="center" height="2px"></td></tr>
  </table>  
 </BODY>
</HTML>

自然之光职业
函数editrecord（id）{
window.location.href=“editServlet/”+id；
}
函数deleteRecord（id）{
window.location.href=“deleteUser/”+id；
}




配置Id
代码UF
利伯莱
名称
活动
编辑
删除
奥村注册争议

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
   version="2.5">

  <display-name>Test Config</display-name>
  <description>Test Config</description>
 
 <servlet>
     <servlet-name>servletrecord</servlet-name>
     <servlet-class>servletRecord</servlet-class>
 </servlet>
 <servlet-mapping>
     <servlet-name>servletrecord</servlet-name>
     <url-pattern>/servletRecord</url-pattern>
 </servlet-mapping>


 <servlet>
    <servlet-name>addUf</servlet-name>
    <servlet-class>addUf</servlet-class>
 </servlet>
 <servlet-mapping>
    <servlet-name>addUf</servlet-name>
    <url-pattern>/addUf</url-pattern>
 </servlet-mapping>

 <servlet>
  <servlet-name>editservlet</servlet-name>
  <servlet-class>userServlet</servlet-class>
 </servlet>
 <servlet-mapping>
    <servlet-name>editservlet</servlet-name>
    <url-pattern>/editServlet/*</url-pattern>
 </servlet-mapping>

 <servlet>
    <servlet-name>edituser</servlet-name>
    <servlet-class>editUser</servlet-class>
 </servlet>
 <servlet-mapping>
    <servlet-name>edituser</servlet-name>
    <url-pattern>/editUser</url-pattern>
 </servlet-mapping>

<servlet>
    <servlet-name>deleteuser</servlet-name>
    <servlet-class>deleteUser</servlet-class>
</servlet>
 <servlet-mapping>
    <servlet-name>deleteuser</servlet-name>
    <url-pattern>/deleteUser/*</url-pattern>
 </servlet-mapping>

</web-app>

测试配置
测试配置
servletrecord
servletRecord
servletrecord
/servletRecord
阿杜夫
阿杜夫
阿杜夫
/阿杜夫
editservlet
用户servlet
editservlet
/editServlet/*
编辑用户
编辑用户
编辑用户
/编辑用户
删除用户
删除用户
删除用户
/删除用户/*

我错过了什么

我的LIB是： ojdbc6.jar servlet-api.jar sqljdbc.jar

谢谢你的帮助！

---

Tomcat 9/Java 8

该消息是由于

import=“Java.util.*”

属性引起的，该属性应该是

import=“Java.util.*”

（cf）

然而，由于JSP 2.0，不鼓励使用scriplets

，而支持表达式

${…}

和标记。假设您有这样一个类：

公共类LitsConfig{
私有int-id；
私有字符串codeUf；
私串诽谤；
私家侦探；
私有布尔活动；
//接球手和接球手
...
}

为了表示行数据并假设servlet将类型为

List

的名为

“litsConfig”

的属性放入请求上下文中，您可以简化JSP页面，如下所示：

在此处插入标题
表1.main{
宽度：600px；
保证金：自动；
背景色：#EDF6EA；
边框：1px实心#000000；
}
标题{
背景色：#7BA88B；
字体大小：粗体；
}
tr.data：第n个子项（奇数）{
背景色：#C8E2D1；
}
tr.data：第n个子项（偶数）{
背景色：#EAF8EF；
}
配置Id
代码UF
利伯莱
名称
活动
编辑
删除
${lit.id}
${lit.codeUf}
${lit.libelle}
${lit.noLits}
${lit.actif？“oui”：“非”}
奥村注册争议

---

备注：您需要向依赖项添加和。

您的

页面

指令（

import

属性）中有语法错误。检查语法是否正确。顺便说一句，scriplets

应替换为和。所有的准备工作都应该在

servletRecord

中完成（奇怪的名字，Java中的类名应该以大写字母开头）。关于类名的大写字母，我同意，这是一个教程，我没有重写它。我读了你关于EL表达式和JSTL的链接，但我没有掌握背后的概念。你能告诉我如何将我的部分代码翻译成JSTL以便我能理解吗？Thx很多：）如果我理解正确，那么想法是使用java对象来模拟我的表而不是通用数组？主要想法是完全替换JSP中的java代码（参见。[这个答案]。使用只是使JSP更具可读性的一种方法。

<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
   version="2.5">

  <display-name>Test Config</display-name>
  <description>Test Config</description>
 
 <servlet>
     <servlet-name>servletrecord</servlet-name>
     <servlet-class>servletRecord</servlet-class>
 </servlet>
 <servlet-mapping>
     <servlet-name>servletrecord</servlet-name>
     <url-pattern>/servletRecord</url-pattern>
 </servlet-mapping>


 <servlet>
    <servlet-name>addUf</servlet-name>
    <servlet-class>addUf</servlet-class>
 </servlet>
 <servlet-mapping>
    <servlet-name>addUf</servlet-name>
    <url-pattern>/addUf</url-pattern>
 </servlet-mapping>

 <servlet>
  <servlet-name>editservlet</servlet-name>
  <servlet-class>userServlet</servlet-class>
 </servlet>
 <servlet-mapping>
    <servlet-name>editservlet</servlet-name>
    <url-pattern>/editServlet/*</url-pattern>
 </servlet-mapping>

 <servlet>
    <servlet-name>edituser</servlet-name>
    <servlet-class>editUser</servlet-class>
 </servlet>
 <servlet-mapping>
    <servlet-name>edituser</servlet-name>
    <url-pattern>/editUser</url-pattern>
 </servlet-mapping>

<servlet>
    <servlet-name>deleteuser</servlet-name>
    <servlet-class>deleteUser</servlet-class>
</servlet>
 <servlet-mapping>
    <servlet-name>deleteuser</servlet-name>
    <url-pattern>/deleteUser/*</url-pattern>
 </servlet-mapping>

</web-app>