Java 如何将jsp中的输入字段绑定到列表中的属性

我需要将一个对象绑定到jsp中的输入字段，该对象的属性是列表。这是我的jsp代码

        <form:form class="form-horizontal" method="post"
        modelAttribute="codingPropertiesModel" action="<%=updateCodingPropertiesURL%>">
            <c:set var="counter" value="0"></c:set>
            <c:forEach items="${codingPropertiesModel.codingList}" var="coding" varStatus="status">
                <tr>

                    <td>${counter + 1}</td>

                    <td>
                    <div class="col-sm-10">
                        <form:input type="text"
                            path="codingList[${status.index}].codeInLevel" class="form-control" />
                        <form:errors path="codingList[${status.index}].codeInLevel" class="control-label" />
                    </div>
                    </td>

                </tr>
                <c:set var="counter" value="${counter + 1}"></c:set>
            </c:forEach>

但是，当我运行代码并显示结果时，出现了一个错误：

                    <td>
                    <div class="col-sm-10">
                        <form:input type="text"
path="codingList[${status.index}].codeInLevel" class="form-control" />
                        <form:errors     path="codingList[${status.index}].codeInLevel" class="control-label" />
                    </div>


Stacktrace:] with root cause
org.springframework.beans.NotReadablePropertyException: Invalid property 'codingList[0].codeInLevel' of bean class [base.models.template.CodingProperties]: Bean property 'codingList[0].codeInLevel' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
at org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyValue(AbstractNestablePropertyAccessor.java:619)
at org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyValue(AbstractNestablePropertyAccessor.java:610)
at org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue(AbstractPropertyBindingResult.java:99)
at org.springframework.validation.AbstractBindingResult.getFieldValue(AbstractBindingResult.java:229)
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:168)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:188)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:154)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:141)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:132)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:116)
at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:422)
at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:142)
at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:84)
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:80)
at org.apache.jsp.WEB_002dINF.JSP.accounting.base.coding.updateCodingProperties_jsp._jspx_meth_form_005finput_005f0(updateCodingProperties_jsp.java:1180)
at org.apache.jsp.WEB_002dINF.JSP.accounting.base.coding.updateCodingProperties_jsp._jspService(updateCodingProperties_jsp.java:349)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:720)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1244)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)

Stacktrace:]具有根本原因
org.springframework.beans.NotReadablePropertyException:bean类[base.models.template.CodingProperties]的无效属性“codingList[0].codeInLevel]：bean属性“codingList[0].codeInLevel”不可读或具有无效的getter方法：getter的返回类型是否与setter的参数类型匹配？
位于org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyValue（AbstractNestablePropertyAccessor.java:619）
位于org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyValue（AbstractNestablePropertyAccessor.java:610）
位于org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue（AbstractPropertyBindingResult.java:99）
位于org.springframework.validation.AbstractBindingResult.getFieldValue（AbstractBindingResult.java:229）
位于org.springframework.web.servlet.support.BindStatus。（BindStatus.java:120）
位于org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus（AbstractDataBoundFormElementTag.java:168）
位于org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath（AbstractDataBoundFormElementTag.java:188）
位于org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName（AbstractDataBoundFormElementTag.java:154）
位于org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId（AbstractDataBoundFormElementTag.java:141）
位于org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId（AbstractDataBoundFormElementTag.java:132）
位于org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes（AbstractDataBoundFormElementTag.java:116）
位于org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes（AbstractHtmlElementTag.java:422）
位于org.springframework.web.servlet.tags.form.InputTag.writeTagContent（InputTag.java:142）
位于org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal（AbstractFormTag.java:84）
位于org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag（RequestContextAwareTag.java:80）
在org.apache.jsp.WEB_002dINF.jsp.accounting.base.coding.updateCodingProperties_jsp.\u jspx_meth_form_005finput_005f0（updateCodingProperties_jsp.java:1180）
在org.apache.jsp.WEB_002dINF.jsp.accounting.base.coding.updateCodingProperties_jsp._jsp服务（updateCodingProperties_jsp.java:349）
位于org.apache.jasper.runtime.HttpJspBase.service（HttpJspBase.java:70）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:729）
位于org.apache.jasper.servlet.JspServletWrapper.service（JspServletWrapper.java:438）
位于org.apache.jasper.servlet.JspServlet.serviceJspFile（JspServlet.java:396）
位于org.apache.jasper.servlet.JspServlet.service（JspServlet.java:340）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:729）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:291）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:206）
位于org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:239）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:206）
位于org.apache.catalina.core.ApplicationDispatcher.invoke（ApplicationDispatcher.java:720）
位于org.apache.catalina.core.ApplicationDispatcher.processRequest（ApplicationDispatcher.java:466）
位于org.apache.catalina.core.ApplicationDispatcher.doForward（ApplicationDispatcher.java:391）
位于org.apache.catalina.core.ApplicationDispatcher.forward（ApplicationDispatcher.java:318）
位于org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel（InternalResourceView.java:168）
位于org.springframework.web.servlet.view.AbstractView.render（AbstractView.java:303）
位于org.springframework.web.servlet.DispatcherServlet.render（DispatcherServlet.java:1244）
位于org.springframework.web.servlet.DispatcherServlet.processDispatchResult（DispatcherServlet.java:1027）
位于org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:971）
位于org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:893）
位于org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:970）
位于org.springframework.web.servlet.FrameworkServlet.doPost（FrameworkServlet.java:872）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:648）
位于org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:846）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:729）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:291）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:206）
位于org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:239）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:206）
位于org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:217）
位于org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:106）
位于org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:502）
位于org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:142）
位于org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:79）
位于org.apache.catalina.valves.AbstractAccessLogValve.invoke（AbstractAccessLogValve.java:616）
在org.apache.catalina上。
public class CodingModel {
    private String codeInLevel;
    /**
    * @return the codeInLevel
    */
    public String getCodeInLevel() {
        return codeInLevel;
    }
    /**
    * @param codeInLevel the codeInLevel to set
    */
    public void setCodeInLevel(String codeInLevel) {
        this.codeInLevel = codeInLevel;
    }

                    <td>
                    <div class="col-sm-10">
                        <form:input type="text"
path="codingList[${status.index}].codeInLevel" class="form-control" />
                        <form:errors     path="codingList[${status.index}].codeInLevel" class="control-label" />
                    </div>


Stacktrace:] with root cause
org.springframework.beans.NotReadablePropertyException: Invalid property 'codingList[0].codeInLevel' of bean class [base.models.template.CodingProperties]: Bean property 'codingList[0].codeInLevel' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
at org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyValue(AbstractNestablePropertyAccessor.java:619)
at org.springframework.beans.AbstractNestablePropertyAccessor.getPropertyValue(AbstractNestablePropertyAccessor.java:610)
at org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue(AbstractPropertyBindingResult.java:99)
at org.springframework.validation.AbstractBindingResult.getFieldValue(AbstractBindingResult.java:229)
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:168)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:188)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:154)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:141)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:132)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.writeDefaultAttributes(AbstractDataBoundFormElementTag.java:116)
at org.springframework.web.servlet.tags.form.AbstractHtmlElementTag.writeDefaultAttributes(AbstractHtmlElementTag.java:422)
at org.springframework.web.servlet.tags.form.InputTag.writeTagContent(InputTag.java:142)
at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:84)
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:80)
at org.apache.jsp.WEB_002dINF.JSP.accounting.base.coding.updateCodingProperties_jsp._jspx_meth_form_005finput_005f0(updateCodingProperties_jsp.java:1180)
at org.apache.jsp.WEB_002dINF.JSP.accounting.base.coding.updateCodingProperties_jsp._jspService(updateCodingProperties_jsp.java:349)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:720)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1244)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)