Question

在使用hibernate和jpa的spring mvc应用程序中，我无法让实体从get方法转到post方法，这会导致其他下游问题。有人可以告诉我如何进行设置，以便在post方法中仍然可以看到实体的属性吗？

以下是控制器方法：

@RequestMapping(value = "/patients/{patientId}/encounters/{encounterId}/providers", method = RequestMethod.GET)
public String initUpdateProvidersForm(@PathVariable("encounterId") int encounterId, Model model) {
    Encounter encounter = this.clinicService.findEncounterById(encounterId);
    ArrayList<Provider> myproviders = new ArrayList<Provider>();
    myproviders.addAll(encounter.getProviders());
    System.out.println("............encounter id is:  "+encounter.getId());
    model.addAttribute("encounter", encounter);
    return "encounters/addProvidersForm";
}

@RequestMapping(value = "/patients/{patientId}/encounters/{encounterId}/providers", method = {RequestMethod.POST})
public String processUpdateProvidersForm(@ModelAttribute("encounter") Encounter encounter, @PathVariable("encounterId") int eid, BindingResult result, SessionStatus status) {
    Provider provider = this.clinicService.findProviderById(encounter.getProviderSelected());
    encounter.addProvider(provider);
    System.out.println(" :::::: encounter id is: "+encounter.getId());
    this.clinicService.saveEncounter(encounter);

    return "redirect:/encounters?encounterID={encounterId}";
}

注意： encounter.getId()在GET打印出一个数字，但在null中打印出POST。为什么？我怎样才能解决这个问题？

这是JSP：

<!DOCTYPE html>  
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ taglib prefix="petclinic" tagdir="/WEB-INF/tags" %>
<html lang="en">
<jsp:include page="../fragments/headTag.jsp"/>
<body>
    <div class="container">
    <jsp:include page="../fragments/bodyHeader.jsp"/>
        <c:set var="method" value="post"/>
    <h2>Providers</h2>
        <div class="control-group" id="patient">
            <label class="control-label">Patient </label>
            <c:out value="${encounter.patient.firstName} ${encounter.patient.lastName}"/>
            ${encounter.dateTime}
        </div>
        <c:url value="/patientscodes.html" var="actUrl"/> 
${encounter.id} 
    <form:form modelAttribute="encounter" method="${method}" class="form-horizontal" >
        <div class="control-group">
            <form:select path="providerSelected" items="${providers}" size="5" style="min-width:600px"/>
        </div>
        <form:hidden path="id"/>
        <td>
        </td>
        <div class="form-actions">
            <button type="submit">Add a Provider</button> <h3>    Link to delete will go here.</h3>
        </div>
    </form:form>
</div>
</body>
</html>

将实体属性从GET发送到Post

0 个答案: