Spring CRUD不将实体保存到数据库

aamkag61  于 2024-01-05  发布在  Spring
关注(0)|答案(1)|浏览(163)

我的spring应用程序没有向连接的H2数据库添加任何数据。它是我的Patient实体：

  1. package medical.Model;
  3. import jakarta.persistence.*;
  4. import jakarta.validation.constraints.NotBlank;
  5. import jakarta.validation.constraints.NotNull;
  7. @Entity
  8. @Table(name = "PATIENTS")
  9. public class Patient {
  10.     @Id
  11.     @GeneratedValue(strategy = GenerationType.IDENTITY)
  12.     private Long id;
  13.     @Column(name = "name")
  14.     @NotBlank(message = "Imię pacjenta jest wymagane")
  15.     private String name;
  16.     @Column(name = "surname")
  17.     @NotBlank(message = "Nazwisko pacjenta jest wymagane")
  18.     private String surname;
  19.     @Column(name = "age")
  20.     @NotNull(message = "Wiek pacjenta jest wymagany")
  21.     private int age;
  22.     @Column(name = "description")
  23.     @NotBlank(message = "Opis zdrowotny pacjenta jest wymagany")
  24.     private String description;
  26.     public Patient(String name, String surname, int age, String description) {
  27.         this.name = name;
  28.         this.surname = surname;
  29.         this.age = age;
  30.         this.description = description;
  31.     }
  33.     public Patient() {
  35.     }
  37.     public Long getId() {
  38.         return id;
  39.     }
  41.     public void setId(long id) {
  42.         this.id = id;
  43.     }
  45.     public String getName() {
  46.         return name;
  47.     }
  49.     public void setName(String name) {
  50.         this.name = name;
  51.     }
  53.     public String getSurname() {
  54.         return surname;
  55.     }
  57.     public void setSurname(String surname) {
  58.         this.surname = surname;
  59.     }
  61.     public int getAge() {
  62.         return age;
  63.     }
  65.     public void setAge(int age) {
  66.         this.age = age;
  67.     }
  69.     public String getDescription() {
  70.         return description;
  71.     }
  73.     public void setDescription(String description) {
  74.         this.description = description;
  75.     }
  77.     @Override
  78.     public String toString() {
  79.         return "Patient{" +
  80.                 "id=" + id + name = '" + name + '\'' + surname = '" + surname + '\
  81.         '' + age = " + age + description='" + description + '\'' +
  82.                 '}';
  83.     }
  84. }

字符串
我的控制器：

  1. package medical.Controller;
  3. import medical.Model.Patient;
  4. import jakarta.validation.Valid;
  5. import medical.Service.UserManageService;
  6. import org.springframework.beans.factory.annotation.Autowired;
  7. import org.springframework.stereotype.Controller;
  8. import org.springframework.validation.BindingResult;
  9. import org.springframework.web.bind.annotation.*;
  10. import org.springframework.ui.Model;
  12. import java.util.List;
  13. import java.util.Optional;
  15. import medical.exception.RecordNotFoundException;
  17. import org.springframework.web.bind.annotation.PathVariable;
  18. import org.springframework.web.bind.annotation.RequestMapping;
  20. @Controller
  21. @RequestMapping("/")
  22. public class UserManageController {
  23.     @Autowired
  24.     UserManageService service;
  26.     @RequestMapping
  27.     public String getAllEmployees(Model model) {
  28.         System.out.println("getAllEmployees");
  30.         List<Patient> list = service.getAllPatients();
  32.         model.addAttribute("employees", list);
  34.         return "list-employees";
  35.     }
  37.     @RequestMapping(path = {"/edit", "/edit/{id}"})
  38.     public String editPatientById(Model model, @PathVariable("id") Optional<Long> id) throws RecordNotFoundException {
  40.         System.out.println("editPatientById" + id);
  41.         if (id.isPresent()) {
  42.             Patient patient = service.getPatientById(id.get());
  43.             model.addAttribute("patient", patient); else{
  44.                 model.addAttribute("patient", new Patient());
  45.             }
  47.             return "add-edit-patient";
  48.         }
  50.         @RequestMapping(path = "/delete/{id}") public String deleteEmployeeById (Model model, @PathVariable("id") Long
  51.         id) throws RecordNotFoundException
  52.         {
  54.             System.out.println("deleteEmployeeById" + id);
  56.             service.deletePatientById(id);
  57.             return "redirect:/";
  58.         }
  60.         @PostMapping("/createOrUpdatePatient") public String createOrUpdatePatient (@Valid Patient
  61.         patient, BindingResult bindingResult, Model model){
  62.             if (bindingResult.hasErrors()) {
  63.                 In
  64.                 case of validation
  65.                     errors,return to the form with errors return "add-edit-patient";
  66.             } System.out.println("Create or update patient");
  67.             service.createOrUpdatePatient(patient);
  68.             return "redirect:/list-employees";
  69.         }
  71.     }

型
服务

  1. package medical.Service;
  3. import medical.Model.Patient;
  4. import medical.Repository.UserManageRepo;
  5. import medical.exception.RecordNotFoundException;
  6. import org.springframework.beans.factory.annotation.Autowired;
  7. import org.springframework.stereotype.Service;
  9. import java.util.ArrayList;
  10. import java.util.List;
  11. import java.util.Optional;
  13. @Service
  14. public class UserManageService {
  16.     @Autowired
  17.     UserManageRepo repository;
  19.     public List<Patient> getAllPatients() {
  20.         System.out.println("getAllPatients");
  21.         List<Patient> result = (List<Patient>) repository.findAll();
  23.         if (result.size() > 0) {
  24.             return result; else{
  25.                 return new ArrayList<>();
  26.             }
  27.         }
  29.         public Patient getPatientById (Long id) throws RecordNotFoundException {
  30.             System.out.println("getPatientById");
  31.             Optional<Patient> patient = repository.findById(id);
  33.             if (patient.isPresent()) {
  34.                 return patient.get(); else{
  35.                     throw new RecordNotFoundException("No patient record exist for given id");
  36.                 }
  37.             }
  39.             public Patient createOrUpdatePatient (Patient patient){
  40.                 System.out.println("createOrUpdatePatient");
  41.                 Create new entry if (patient.getId() == null) {
  42.                     patient = repository.save(patient);
  43.                     return patient; else{
  44.                         update existing entry Optional<Patient > patientOptional = repository.findById(patient.getId());
  46.                         if (patientOptional.isPresent()) {
  47.                             Patient existingPatient = patientOptional.get();
  48.                             existingPatient.setName(patient.getName());
  49.                             existingPatient.setSurname(patient.getSurname());
  50.                             existingPatient.setAge(patient.getAge());
  51.                             existingPatient.setDescription(patient.getDescription());
  53.                             existingPatient = repository.save(existingPatient);
  55.                             return existingPatient; else{
  56.                                 patient = repository.save(patient);
  57.                                 return patient;
  58.                             }
  59.                         }
  60.                     }
  62.                     public void deletePatientById (Long id) throws RecordNotFoundException {
  63.                         System.out.println("deletePatientById");
  65.                         Optional<Patient> patient = repository.findById(id);
  67.                         if (patient.isPresent()) {
  68.                             repository.deleteById(id); else{
  69.                                 throw new RecordNotFoundException("No patient record exist for given id");
  70.                             }
  71.                         }
  72.                     }

型
最后是百里香叶的表达

  1. <!DOCTYPE html>
  2. <html xmlns:th="http://www.thymeleaf.org">
  4. <head>
  5.     <meta charset="utf-8">
  6.     <meta http-equiv="x-ua-compatible" content="ie=edge">
  7.     <title>Add Employee</title>
  8.     <meta name="viewport" content="width=device-width, initial-scale=1">
  9.     <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
  10.     <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.4.1/css/all.css"> </head>
  12. <body>   Navigation -->         <nav class="navbar navbar-expand-lg navbar-dark bg-dark static-top">
  13.             <div class="container">
  14.                 <a class="navbar-brand" href="/">Springboot H2 DB @OKAYCOMPUTING</a>
  15.                 <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
  16.                     <span class="navbar-toggler-icon"></span>
  17.                 </button>
  18.                 <div class="collapse navbar-collapse" id="navbarResponsive">
  19.                     <ul class="navbar-nav ml-auto">
  20.                         <li class="nav-item active">
  21.                             <a class="nav-link" href="#">Home
  22.                                 <span class="sr-only">(current)</span>
  23.                             </a>
  24.                         </li>
  25.                         <li class="nav-item">
  26.                             <a class="nav-link" href="#">About</a>
  27.                         </li>
  28.                         <li class="nav-item">
  29.                             <a class="nav-link" href="#">Services</a>
  30.                         </li>
  31.                         <li class="nav-item">
  32.                             <a class="nav-link" href="#">Contact</a>
  33.                         </li>
  34.                     </ul>
  35.                 </div>
  36.             </div>      </nav>
  37.     
  38.     
  39.     <div class="container my-5" style="padding-top: 30px;">
  41.         <h3> Add Employee</h3>
  43.         <div class="card">
  44.             <div class="card-body">
  45.                 <div class="col-md-10">
  46.                     <!--/*@thymesVar id="patient" type="medical.Model.Patient"*/-->
  47.                     <form th:action="@{/createOrUpdatePatient}" th:object="${patient}" method="post">
  49.                         <div class="row">
  51.                             <div class="form-group col-md-8">
  52.                                 <label for="name" class="col-form-label">Name</label>
  53.                                 <input type="text" th:field="*{name}" class="form-control" id="name" placeholder="name" />
  54.                             </div>
  55.                             <div class="form-group col-md-8">
  56.                                 <label for="surname" class="col-form-label">Surname</label>
  57.                                 <input type="text" th:field="*{surname}" class="form-control" id="surname" placeholder="surname" />
  58.                             </div>
  59.                             <div class="form-group col-md-8">
  60.                                 <label for="age" class="col-form-label">Age</label>
  61.                                 <input type="number" th:field="*{age}" class="form-control" id="age" placeholder="Age" />
  62.                             </div>
  63.                             <div class="form-group col-md-8">
  64.                                 <label for="description" class="col-form-label">Description</label>
  65.                                 <input type="text" th:field="*{description}" class="form-control" id="description" placeholder="Description" />
  66.                             </div>
  68.                             <div class="col-md-6">
  69.                                 <input type="submit" class="btn btn-primary" value=" Submit ">
  70.                             </div>
  72.                             <input type="hidden" id="id" th:field="*{id}">
  74.                         </div>
  75.                     </form>
  76.                 </div>
  77.             </div>
  78.         </div>
  79.     </div> </body>
  81. </html>

型
正如我注意到的那样，患者控制器方法甚至没有记录Sout消息
我试图改变控制器和服务，但它没有帮助很多

spring

1条答案

按热度按时间
carvr3hs

carvr3hs1#

我终于设法解决了这个问题。可能是因为这一行的原因，“ID”中存在冲突：

  1. <input type="hidden" id="id" th:if="${patient.id}" th:field="*{id}">

字符串

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