복붙노트

[SPRING] 봄 애플 리케이션 개체에 속성을 찾을 수 없습니다

SPRING

봄 애플 리케이션 개체에 속성을 찾을 수 없습니다

나는 유형 AppointmentCalendar의 개체 달력이 있습니다. calendar.jsp라는 jsp에서 calendar 속성의 하나를 calendar.day로 호출합니다. 하지만 다음과 같은 오류가 나타납니다.

org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 9): Field or property 'day' cannot be found on object of type

아무도 나에게 이것을 해결하는 방법을 보여줄 수 있습니까?

다음은 day 속성을 참조하는 calendar.jsp의 일부입니다.

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
<%@ taglib prefix="joda" uri="http://www.joda.org/joda/time/tags" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <title>Insert title here</title>
</head>
<body>
    <div id="appointmentDay" class="prepend-6 span-4 alt">
        <spring:eval expression="calendar.day" />
    </div>
    <div id="appointmentNavigation" class="span-3 append-11 last alt">
        <c:url var="previousLink" value="/calendar">
            <c:param name="day" value="${calendar.previousDay}" />
        </c:url>
        <a href="${previousLink}">Previous</a>
        <c:url var="nextLink" value="/calendar">
            <c:param name="day" value="${calendar.nextDay}" />
        </c:url>
        <a href="${nextLink}">Next</a>  
    </div>
    <div id="dayPicker" class="span-6"></div>
    ... other irrelevant code
</body>
</html>

다음은 / calendar url 패턴을 관리하는 EncounterController의 일부입니다.

@RequestMapping("/calendar")
public String showCalendar(Model model) {
    LocalDate today = new LocalDate();
    System.out.println("------------------------ in controller, day of month is:  "+today.getDayOfMonth());
    AppointmentCalendar calendar = new AppointmentCalendar(today); // Or whatever you do to create it
    model.addAttribute("calendar", calendar);
    return "appointments/calendar";
}

약속 달력은 다음과 같습니다.

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.joda.time.LocalDate;
import org.joda.time.LocalTime;
import org.springframework.format.annotation.DateTimeFormat;

public class AppointmentCalendar {
    @DateTimeFormat(style="F-")
    private LocalDate day;

    private List<Provider> providers;

    private List<Encounter> encounters; 

    public AppointmentCalendar(LocalDate day) {
        this.day = day;
        System.out.println(":::::::::::::::::::::::::: in AppointmentCalendar constructor, dayOfMonth is: "+day.getDayOfMonth());
    }

    public void setProviders(List<Provider> doctors) {
        this.providers = doctors;
        encounters = new ArrayList<Encounter>();
        for (int i = 0; i < 9; i++) {encounters.add(null);}
    }

    public void addEncounter(Encounter appointment) {
        int blockIndex = appointment.getDateTime().getHourOfDay() - 8;
        encounters.add(appointment);
    }

    public Long getDayMillis() {
        return day.toDateTimeAtStartOfDay().getMillis();
    }

    public List<LocalTime> getBlocks() {
        List<LocalTime> blocks = new ArrayList<LocalTime>(9);
        LocalTime time = new LocalTime(8, 0);
        for (int i = 0; i < 9; i++) {
            blocks.add(time);
            time = time.plusMinutes(60);
        }
        return blocks;
    }

    public Long getBlockMillis(LocalTime block) {return day.toDateTime(block).getMillis();}

    public Date getStartOfDay() {return day.toDateTime(getBlocks().get(0)).toDate();}

    public Date getEndOfDay() {return day.toDateTime(getBlocks().get(8)).plusMillis(60).toDate();}

    // resource links

    public LocalDate getPreviousDay() {return day.minusDays(1);}

    public LocalDate getNextDay() {return day.plusDays(1);}

    // internal

    private List<Encounter> createEncounterList(int size) {
        List<Encounter> appointments = new ArrayList<Encounter>(size);
        for (int i = 0; i < size; i++) {appointments.add(null);}
        return appointments;
    }
}

다음은 완전한 스택 추적입니다. 시작시 system.out.println () 출력은 메소드가 올바른 순서로 시작되고 day 속성 값이 있음을 보여줍니다.

------------------------ in controller, day of month is:  6
:::::::::::::::::::::::::: in AppointmentCalendar constructor, dayOfMonth is: 6
Feb 6, 2014 1:34:21 PM org.apache.jasper.compiler.TldLocationsCache tldScanJar
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Feb 6, 2014 1:34:22 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 9): Field or property 'day' cannot be found on object of type 'org.springframework.samples.knowledgemanager.model.AppointmentCalendar'
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:216)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:85)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.access$000(PropertyOrFieldReference.java:43)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference$AccessorLValue.getValue(PropertyOrFieldReference.java:346)
    at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:82)
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:102)
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:98)
    at org.springframework.web.servlet.tags.EvalTag.doEndTag(EvalTag.java:126)
    at org.apache.jsp.WEB_002dINF.jsp.appointments.calendar_jsp._jspx_meth_spring_005feval_005f0(calendar_jsp.java:217)
    at org.apache.jsp.WEB_002dINF.jsp.appointments.calendar_jsp._jspService(calendar_jsp.java:114)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.github.dandelion.datatables.core.web.filter.DatatablesFilter.doFilter(DatatablesFilter.java:73)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.github.dandelion.datatables.extras.servlet2.filter.DatatablesFilter.doFilter(DatatablesFilter.java:71)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Feb 6, 2014 1:34:22 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [KnowledgeManager] in context with path [/KnowledgeManager] threw exception [org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 9): Field or property 'day' cannot be found on object of type 'org.springframework.samples.knowledgemanager.model.AppointmentCalendar'] with root cause
org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 9): Field or property 'day' cannot be found on object of type 'org.springframework.samples.knowledgemanager.model.AppointmentCalendar'
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:216)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:85)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference.access$000(PropertyOrFieldReference.java:43)
    at org.springframework.expression.spel.ast.PropertyOrFieldReference$AccessorLValue.getValue(PropertyOrFieldReference.java:346)
    at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:82)
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:102)
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:98)
    at org.springframework.web.servlet.tags.EvalTag.doEndTag(EvalTag.java:126)
    at org.apache.jsp.WEB_002dINF.jsp.appointments.calendar_jsp._jspx_meth_spring_005feval_005f0(calendar_jsp.java:217)
    at org.apache.jsp.WEB_002dINF.jsp.appointments.calendar_jsp._jspService(calendar_jsp.java:114)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.github.dandelion.datatables.core.web.filter.DatatablesFilter.doFilter(DatatablesFilter.java:73)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.github.dandelion.datatables.extras.servlet2.filter.DatatablesFilter.doFilter(DatatablesFilter.java:71)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)

해결법

  1. ==============================

    1.공용 getDay () 메서드를 AppointmentCalendar에 추가해야합니다. 봄은 하루의 가치를 얻으려면이 게터가 필요합니다.

    공용 getDay () 메서드를 AppointmentCalendar에 추가해야합니다. 봄은 하루의 가치를 얻으려면이 게터가 필요합니다.

    일반적으로 스프링 관리 빈 / 클래스를 사용할 때 항상 각각의 getter 및 setter 메소드를 추가하십시오.

    2. from https://stackoverflow.com/questions/21614681/spring-app-not-finding-property-on-object by cc-by-sa and MIT license

'SPRING' 카테고리의 다른 글

[SPRING] 봄 보안 및 Thymeleaf가 작동하지 않음  (0) 2019.05.10
[SPRING] 자바 코드에서 작업을 예약하는 방법  (0) 2019.05.10
[SPRING] 인터페이스의 사용자 정의 주석에 대한 구성 요소 스캔  (0) 2019.05.10
[SPRING] org.hibernate.PersistentObjectException : 메모리 데이터베이스에 H2로 지속되도록 전달 된 분리 된 엔티티  (0) 2019.05.10
[SPRING] 데이터베이스를 삭제하고 다시 만든 후 최대 절전 모드로 강제로 테이블 만들기  (0) 2019.05.10
,

티스토리툴바