问题：
HTTP状态500-请求处理失败；
姚兴安
这是我的同意模式
@Entity
@Table(name = "consents")
public class Consent extends BaseEntity {
/**
*/
@OneToOne
@JoinColumn(name = "provider_id")
private Provider provider;
@OneToOne
@JoinColumn(name = "user_id")
private User user;
@OneToOne
@JoinColumn(name = "friend_id")
private User friend;
@OneToOne
@JoinColumn(name = "document_id")
private Document document;
@Column(name = "status")
private String status;
/**
* C
* @return
*/
public void Provider() {
}
public Provider getProvider() {
return this.provider;
}
/**
*
* Setter for property pet.
*
* @param pet New value of property pet.
*
*/
public void setProvider(Provider provider) {
this.provider = provider;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public User getFriend() {
return friend;
}
public void setFriend(User friend) {
this.friend = friend;
}
public Document getDocument() {
return document;
}
public void setDocument(Document document) {
this.document = document;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
}
这是同意控制器获取声明
@RequestMapping(value = "/users/{userId}/providers/{providerId}/documents/{documentId}/consents/new", method = RequestMethod.GET)
public String initNewConsentForm(@PathVariable("userId") int userId,@PathVariable("providerId") int providerId,@PathVariable("documentId") int documentId, Model model) {
User user = this.clinicService.findUserById(userId);
Provider provider = this.clinicService.findProviderById(providerId);
Document document = this.clinicService.findDocumentById(documentId);
Collection<User> users = this.clinicService.AllUsers();
Consent consent = new Consent();
//document.addConsent(consent);
//provider.addDocument(document);
//user.addProvider(provider);
model.addAttribute("provider",provider);
model.addAttribute("document", document);
model.addAttribute("user", user);
model.addAttribute("users", users);
model.addAttribute("consent", consent);
return "providers/createOrUpdateConsentForm";
}
这是声明后的同意
@RequestMapping(value = "/users/{userId}/providers/{providerId}/documents/{documentId}/consents/new", method = RequestMethod.POST)
public String processNewConsentForm(@PathVariable("userId") int userId, @PathVariable("providerId") int providerId,
@PathVariable("documentId") int documentId, @ModelAttribute("consent") Consent consent, BindingResult result, SessionStatus status) {
User user = this.clinicService.findUserById(userId);
Provider provider = this.clinicService.findProviderById(providerId);
//System.out.println("daghade");
//System.out.println(provider);
//Document doc = this.clinicService.findDocumentById(userId);
Consent c =new Consent();
c.setProvider(consent.getProvider());
c.setDocument(consent.getDocument());
c.setUser(user);
c.setStatus(consent.getStatus());
c.setFriend(consent.getFriend());
System.out.print("consentcontroller11");
System.out.println(consent.getProvider());
System.out.print("consentcontroller11");
if (result.hasErrors()) {
return "providers/createOrUpdateConsentForm";
} else {
this.clinicService.saveConsent(c);
status.setComplete();
return "redirect:/users/{userId}";
}
}
同意html thymeleaf表单是
<form th:object="${consent}" action="../users/userDetails.html" th:action="@{${#httpServletRequest.servletPath}}" method="post">
<fieldset>
<div class="col-sm-7 col-md-6 col-lg-5">
<label for="last_name">Service Provider</label>
<select th:field="*{document.provider.id}" name="provider" id="provider" class="form-control" th:onchange="'javascript:showPIIDoc(this.value);'">
<option th:value="0" >Select a Service Provider</option>
<option th:each="provider : ${user.providers}" th:value="${user.id} +','+ ${provider.id}" th:text="${provider.name}" >[name]</option>
</select>
</div>
<div style="clear:both"></div>
<div class="col-sm-7 col-md-6 col-lg-5">
<label for="last_name">PII Document</label>
<select th:field="*{document.id}" id ="document_id" class="form-control">
</select>
</div>
<div style="clear:both"></div>
<div class="col-sm-7 col-md-6 col-lg-5">
<label for="last_name">Share with</label>
<select th:field="*{user.id}" id="friend_id" class="form-control">
<option th:value="0" >Select a user you want share the document to</option>
<option name="name" th:each="user : ${users}" th:value="${user.id}" th:text="${user.firstName} + ' ' + ${user.lastName}">[name]</option>
</select>
</div>
<div style="clear:both"></div>
<div class="col-sm-7 col-md-6 col-lg-5">
<label for="last_name">Consent</label>
<div style="clear:both"></div>
<input type="checkbox" id="status" th:field="*{status}" name="share" th:value="1" th:text="Share" />
</div>
<div style="clear:both"></div>
<div style="margin-top:10px;margin-left:10px" class="form-actions">
<button class="btn btn-primary" type="submit">Add Consent</button>
</div>
</fieldset>
</form>
提交表格后。我得到这个错误
HTTP状态500-请求处理失败；嵌套异常是org.thymeleaf.exceptions.TemplateProcessing异常：异常评估SpringEL表达式："user.providers"（提供者/createOrUpdateConentForm
组织。springframework。表示斯佩尔。SpelEvaluationException:EL1007E:（位置0）：在null上找不到字段或属性“providers”
我的用户类：
@Entity
@Table(name = "users")
public class User extends Person {
@Column(name = "gender")
@NotEmpty
private String gender;
@Column(name = "birth_date")
private String birthDate;
@Column(name = "email")
@NotEmpty
private String email;
@Column(name = "username")
@NotEmpty
/* @Digits(fraction = 0, integer = 10)*/
private String username;
@Column(name = "password")
@NotEmpty
/* @Digits(fraction = 0, integer = 10)*/
private String password;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "user")
private Set<Provider> providers;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "user")
private Set<Document> documents;
@JsonManagedReference
@OneToOne(cascade = CascadeType.ALL, mappedBy = "user")
private Role role;
public void setProviders(Set<Provider> providers) {
this.providers = providers;
}
public void setDocuments(Set<Document> documents) {
this.documents = documents;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getBirthDate() {
return birthDate;
}
public void setBirthDate(String birthDate) {
this.birthDate = birthDate;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
protected void setProvidersInternal(Set<Provider> providers) {
this.providers = providers;
}
protected void setDocumentsInternal(Set<Document> documents) {
this.documents = documents;
}
protected Set<Provider> getProvidersInternal() {
if (this.providers == null) {
this.providers = new HashSet<Provider>();
}
return this.providers;
}
protected Set<Document> getDocumentsInternal() {
if (this.documents == null) {
this.documents = new HashSet<Document>();
}
return this.documents;
}
public List<Provider> getProviders() {
List<Provider> sortedProviders = new ArrayList<Provider>(getProvidersInternal());
PropertyComparator.sort(sortedProviders, new MutableSortDefinition("name", true, true));
System.out.print("sortedProvider");
System.out.print(sortedProviders);
return Collections.unmodifiableList(sortedProviders);
}
public List<Document> getDocuments() {
List<Document> sortedDocuments = new ArrayList<Document>(getDocumentsInternal());
PropertyComparator.sort(sortedDocuments, new MutableSortDefinition("name", true, true));
System.out.print("sortedDocuments");
System.out.print(sortedDocuments);
return Collections.unmodifiableList(sortedDocuments);
}
public void addProvider(Provider provider) {
getProvidersInternal().add(provider);
provider.setUser(this);
}
public void addDocument(Document document, Provider provider) {
getDocumentsInternal().add(document);
System.out.print("addDocument");
System.out.print(document);
document.setUser(this);
document.setProvider(provider);
System.out.print("addDocument");
System.out.print(document);
}
/**
* Return the Pet with the given name, or null if none found for this Owner.
*
* @param name to test
* @return true if pet name is already in use
*/
public Provider getProvider(String name) {
return getProvider(name, false);
}
public Document getDocument(String name) {
return getDocument(name, false);
}
/**
* Return the Pet with the given name, or null if none found for this Owner.
*
* @param name to test
* @return true if pet name is already in use
*/
public Provider getProvider(String name, boolean ignoreNew) {
name = name.toLowerCase();
for (Provider provider : getProvidersInternal()) {
if (!ignoreNew || !provider.isNew()) {
String compName = provider.getName();
compName = compName.toLowerCase();
if (compName.equals(name)) {
return provider;
}
}
}
return null;
}
public Document getDocument(String name, boolean ignoreNew) {
name = name.toLowerCase();
for (Document document : getDocumentsInternal()) {
if (!ignoreNew || !document.isNew()) {
String compName = document.getName();
compName = compName.toLowerCase();
if (compName.equals(name)) {
return document;
}
}
}
return null;
}
public Role getRole() {
return role;
}
public void setRole(Role role) {
this.role = role;
}
@Override
public String toString() {
return new ToStringCreator(this)
.append("id", this.getId())
.append("new", this.isNew())
.append("lastName", this.getLastName())
.append("firstName", this.getFirstName())
.append("gender", this.gender)
.append("bithDate", this.birthDate)
.append("email", this.email)
.append("username", this.username)
.append("password", this.password)
.toString();
}
}
共有1个答案
梁承恩
错误消息告诉user模型属性为null
在post请求映射中添加模型属性，如下所示
@RequestMapping(value = "/users/{userId}/providers/{providerId}/documents/{documentId}/consents/new", method = RequestMethod.POST)
public String processNewConsentForm(Model model, @PathVariable("userId") int userId, @PathVariable("providerId") int providerId,
@PathVariable("documentId") int documentId, @ModelAttribute("consent") Consent consent, BindingResult result, SessionStatus status) {
...
if (result.hasErrors()) {
User user = this.clinicService.findUserById(userId);
Provider provider = this.clinicService.findProviderById(providerId);
Document document = this.clinicService.findDocumentById(documentId);
Collection<User> users = this.clinicService.AllUsers();
model.addAttribute("provider",provider);
model.addAttribute("document", document);
model.addAttribute("user", user);
model.addAttribute("users", users);
model.addAttribute("consent", consent);
return "providers/createOrUpdateConsentForm";
}
...
}
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