我正在使用注释验证和自定义验证器的组合
对象:
@Entity
@Table(name = "monitoringsystems")
public class MonitoringSystem {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private long id;
@NotNull(message = "Name must not be empty.")@Size(min=1, message="Name must not be empty.")
private String name;
@NotNull(message = "URL must not be empty.")@Size(min=1, message="Name must not be empty.")
private String url;
@NotNull(message = "Username must not be empty.")@Size(min=1, message="Name must not be empty.")
private String username;
@NotNull(message = "Password must not be empty.")@Size(min=1, message="Name must not be empty.")
private String password;
@NotNull(message = "Confirm Password must not be empty.")@Size(min=1, message="Name must not be empty.")
@Transient
private String passwordConfirm;
的CustomValidator:
@Component
public class MonitoringSystemValidator implements Validator {
@Override
public boolean supports(Class<?> type) {
return MonitoringSystem.class.isAssignableFrom(type);
}
@Override
public void validate(Object o, Errors errors) {
MonitoringSystem monitoringSystem = (MonitoringSystem) o;
if(!monitoringSystem.getPassword().equals(monitoringSystem.getPasswordConfirm())){
errors.rejectValue("passwordConfirm", "Passwords are not equal.");
}
}
}
我在控制器中初始化自定义验证器,并设置表单和保存方法的映射。
控制器:
@Controller
public class MonitoringSystemController {
@Autowired
private MonitoringSystemValidator monitoringSystemValidator;
@InitBinder
public void dataBinding(WebDataBinder binder) {
binder.addValidators(monitoringSystemValidator);
}
@RequestMapping("/monitoringsystem/new")
public String newMonitoringSystem(Model model, HttpServletRequest request) {
MonitoringSystem monitoringSystem = new MonitoringSystem();
model.addAttribute("monitoringSystem", monitoringSystem);
request.getSession().setAttribute("anonymization", monitoringSystem.getAnonymization());
request.getSession().setAttribute("hosts", monitoringSystem.getHosts());
return "monitoringsystem/form";
}
@RequestMapping(value = "/monitoringsystem/save", method = RequestMethod.POST)
public String save(@Valid MonitoringSystem monitoringSystem, BindingResult result, HttpServletRequest request, Model model) {
if(result.hasErrors()){
model.addAttribute("monitoringSystem", monitoringSystem);
request.getSession().setAttribute("anonymization", request.getSession().getAttribute("anonymization"));
request.getSession().setAttribute("hosts", request.getSession().getAttribute("hosts"));
return "monitoringsystem/form";
}
//more code
在第一步中,我只想更改字段的CSS(我使用bootstrap),以便显示错误。
形式:
<form class="form-horizontal" th:modelAttribute="monitoringSystem" th:object="${monitoringSystem}" th:action="@{/monitoringsystem/save}" method="post">
<input type="hidden" th:field="*{id}"/>
<fieldset>
<legend>New Monitoring-System</legend>
<div class="form-group" th:classappend="${#fields.hasErrors('name')} ?: 'has-error has-danger'">
<label class="col-md-4 control-label" for="textinput">Systemname</label>
<div class="col-md-5">
<input th:field="*{name}" class="form-control input-md" type="text" />
</div>
</div>
<div class="form-group" th:classappend="${#fields.hasErrors('url')} ?: 'has-error has-danger'">
<label class="col-md-4 control-label" for="textinput">URL</label>
<div class="col-md-5">
<input th:field="*{url}" class="form-control input-md" type="text" />
</div>
</div>
<div class="form-group" th:classappend="${#fields.hasErrors('username')} ?: 'has-error has-danger'">
<label class="col-md-4 control-label" for="textinput">Username</label>
<div class="col-md-5">
<input th:field="*{username}" class="form-control input-md" type="text" />
</div>
</div>
<div class="form-group" th:classappend="${#fields.hasErrors('password')} ?: 'has-error has-danger'">
<label class="col-md-4 control-label" for="textinput">Password</label>
<div class="col-md-5">
<input th:field="*{password}" class="form-control input-md" type="password" />
</div>
</div>
<div class="form-group" th:classappend="${#fields.hasErrors('passwordConfirm')} ?: 'has-error has-danger'">
<label class="col-md-4 control-label" for="textinput">Confirm Password</label>
<div class="col-md-5">
<input th:field="*{passwordConfirm}" class="form-control input-md" type="password" />
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="singlebutton"></label>
<div class="col-md-4">
<a th:href="@{/monitoringsystem}" class="btn btn-default btn-small">Cancel</a> <button id="singlebutton" name="singlebutton" class="btn btn-primary btn-small">Submit</button>
</div>
</div>
</fieldset>
</form>
我的验证工作正常。仅当我的字段不为空,大小为1且密码匹配时,才会保存表单。如果没有,我的控制器会将我重定向到表单。
问题是,我的css不会改变。因此,我的视图代码一定存在问题,或者错误绑定未正确传递给视图。但我找不到我的错误。
答案 0 :(得分:0)
我的if条件中有一个错误,它添加了错误类。我必须将${#fields.hasErrors('url')} ?: 'has-error has-danger'
更改为${#fields.hasErrors('*{name}')} ? 'has-error has-danger'