我是开发工具新手，我正在尝试使用 spring 和 thymeleaf 创建一个在网站上注册的表单。我目前无法将表单中的信息恢复到仅显示用户列表的另一个页面。 我使用 model/service/dao/controller java 文件在 Eclipse 中创建了一个经典的 Spring boot 安全性。
我的模型 java 文件 --> Register.java
@Entity
public class Register {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private long id;
private String pseudo;
private String lastname;
private String firstname;
private String sex;
private String country;
private String phone;
private String spokenlanguages;
private String email;
private String password;
private String job;
private boolean premium;
public void updateRegister(String pseudo, String lastname, String firstname, String sex, String country, String phone,
String spokenlanguages, String email, String password, String job, boolean premium) {
this.pseudo = pseudo;
this.lastname = lastname;
this.firstname = firstname;
this.sex = sex;
this.country = country;
this.phone = phone;
this.spokenlanguages = spokenlanguages;
this.email = email;
this.password = password;
this.job = job;
this.premium = premium;
// with all the getters & setters
}
My Service java file --> RegisterService.java
public interface RegisterService {
public List<Register> list();
public Register getById(long id);
}
我的存储库 Java 文件 --> RegisterRepository.java
@Repository
public interface RegisterRepository extends PagingAndSortingRepository<Register, Long> {}
我的 Controller Java 文件 --> RegisterController.java
@Controller
public class RegisterController {
@Autowired
RegisterRepository registerRepository;
@RequestMapping(value="/register", method=RequestMethod.GET)
public String form (Model model) {
return "register/form";
}
@PostMapping("/register/add")
public String registerAdd(
@Valid Register register,
BindingResult result,
Model model) {
if (result.hasErrors()) {
return "redirect:/error";
}
else {
Register r = new Register();
r.updateRegister(register.getPseudo(),
register.getLastname(),
register.getFirstname(),
register.getSex(),
register.getCountry(),
register.getPhone(),
register.getSpokenlanguages(),
register.getEmail(),
register.getPassword(),
register.getJob(),
register.isPremium());
System.out.println(r);
registerRepository.save(r);
model.addAttribute("registerlist", registerRepository.findAll());
return "register/valid";
}
}
@RequestMapping(value="/register/valid", method=RequestMethod.GET)
public String list (Model model) {
return "redirect:/home";
}
}
我的 HTML 表单 --> form.html
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org/">
<head>
<title>Formulaire d'inscription</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
crossorigin="anonymous">
<script
src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"></script>
</head>
<body>
<h1 class="register">Formulaire d'inscription</h1>
<form action="#" method="post" th:object="${register}" th:action="@{/register/add}">
<div class="form-group">
<label for="pseudo">Pseudo</label> <input type="text"
class="form-control" id="pseudo" placeholder="Pseudo"
th:field="*{pseudo}" required="required">
</div>
<div class="form-group">
<label for="lastname">Nom</label> <input type="text"
class="form-control" id="lastname" placeholder="Nom"
th:field="*{lastname}" required="required">
</div>
<div class="form-group">
<label for="firstname">Prénom</label> <input type="text"
class="form-control" id="firstname" placeholder="Prenom"
th:field="*{firstname}" required="required">
</div>
<div class="form-group radio">
<label for="sex">Sexe</label><br />
<label for="male">Homme<input
type="radio" class="form-control" id="sex" value="male"
th:field="*{sex}" required="required">
</label> <label for="female">Femme<input type="radio"
class="form-control" th:field="*{sex}" id="sex" value="female">
</label> <label for="other">Autre<input type="radio"
class="form-control" th:field="*{sex}" id="sex" value="other"></label>
</div>
<div class="form-group">
<label for="country">Pays</label> <br /> <select th:field="*{country}" required="required">
<option value="France" selected="selected">France</option>
....other countries...
</select>
</div>
<div class="form-group">
<label for="phone">Téléphone</label> <label
class="optional">(Facultatif)</label> <input type="text"
class="form-control" id="phone" placeholder="Téléphone" th:field="*{phone}">
</div>
<div class="form-group">
<label for="spokenlanguages">Langues parlées</label> <input
type="text" class="form-control" id="spokenlanguages"
placeholder="Langues" th:field="*{spokenlanguages}" required="required">
</div>
<div class="form-group">
<label for="email">Adresse Email</label> <input type="email"
class="form-control" id="email" aria-describedby="emailHelp"
placeholder="Email" th:field="*{email}" required="required">
</div>
<div class="form-group">
<label for="emailconf">Confirmez votre adresse Email</label> <input
type="email" class="form-control" id="emailconf"
aria-describedby="emailHelp" placeholder="" required="required">
</div>
<div class="form-group">
<label for="password">Mot de passe</label> <input type="password"
class="form-control" id="password" placeholder=""
th:field="*{password}" required="required">
</div>
<div class="form-group">
<label for="passwordconf">Confirmez votre mot de passe</label> <input
type="password" class="form-control" id="passwordconf"
placeholder="" required="required">
</div>
<div class="form-group">
<label for="job">Travail</label> <br /> <select id="job"
th:field="*{job}" required="required">
<option value="alexandre">Alexandre</option>
<option value="filmlover">Cinéphile</option>
<option value="scenarist">Scénariste</option>
<option value="productor">Producteur</option>
<option value="other">Autres</option>
</select>
</div>
<div class="form-group radio">
<label for="premium">Premium</label><br />
<label for="yes">Oui<input
type="radio" class="form-control" id="premium"
value="yes" th:field="*{premium}" required="required">
</label>
<label for="no">Non<input type="radio" class="form-control"
th:field="*{premium}" id="premium" value="no">
</label>
</div>
<input type="submit" class="btn btn-primary" id="valider" name="valider" value="Valider" />
</form>
<a href="../home" > <input class="btn btn-primary" type="reset" value="Annuler" /></a>
</body>
</html>
和我的第二个 HTML --> valid.html ，现在我想首先看到注册成功...但我在这个页面中收到了这条消息 --> org.thymeleaf.spring5.processor.SpringInputGeneralFieldTagProcessor 和我在 Controller 中的试用 sysout 导致除 id 和高级内容( boolean 值)之外的所有内容均为空值
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org/">
<head>
<title>Formulaire d'inscription</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
crossorigin="anonymous">
<script
src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"></script>
</head>
<body>
<h1 class="register">Confirmation de votre inscription</h1>
<!-- <h2 class ="register" th:text="${'Bienvenue ' + register.pseudo}"></h2> -->
<div class="container">
<div class="page-header" id="banner">
<div class="row">
<div class="col-lg-8 col-md-7 col-sm-6">
<h1>Utilisateurs</h1>
<table class="table table-striped table-hover">
<thead>
<tr>
<th>Id</th>
<th>Pseudo</th>
<th>Nom</th>
<th>Prénom</th>
<th>Sexe</th>
<th>Pays</th>
<th>Téléphone</th>
<th>Langues parlées</th>
<th>E-mail</th>
<th>Mot de passe</th>
<th>Travail</th>
<th>Premium</th>
</tr>
</thead>
<tbody>
<tr th:each="register : ${registerlist}">
<td th:text="${register.id}"></td>
<td th:text="${register.pseudo}"></td>
<td th:text="${register.lastname}"></td>
<td th:text="${register.firstname}"></td>
<td th:text="${register.sex}"></td>
<td th:text="${register.country}"></td>
<td th:text="${register.phone}"></td>
<td th:text="${register.spokenlanguages}"></td>
<td th:text="${register.email}"></td>
<td th:text="${register.password}"></td>
<td th:text="${register.job}"></td>
<td th:text="${register.premium}"></td>
<td th:text="${register.id}"></td>
</tr>
</tbody>
</table>
</div>
</div>
<a href="../home" > <input class="btn btn-primary" type="reset" value="Retour" /></a>
</body>
</html>
预先感谢您的帮助。 请随时询问我更多信息，以便更好地理解...
最佳答案
尝试在 registerAdd 方法中添加 @ModelAttribute("register")，所以它应该看起来像
@RequestMapping(value="/register/add", method=RequestMethod.POST)
public String registerAdd(@ModelAttribute("register") @Valid Register register, BindingResult result, Model model)
请告诉我这是否是问题所在。
编辑1
将此行添加到您的 GET 映射
model.addAttribute("register", new Register());
所以它应该看起来像:
@RequestMapping(value = "/register", method = RequestMethod.GET)
public String form(Model model) {
model.addAttribute("register", new Register());
return "register/form";
}
希望能解决问题:)
关于java - 从 html 页面恢复 JAVA-Spring (with thymeleaf) 中的表单，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49656103/