你是我对spring mvc的新手我必须使用单独的验证器类进行服务器端验证。我有两个关于一对多关系的模型我必须在注册之前注册它们我是spring mvc中的新服务器端验证使用spring form和所有
require 'conf.inc.php';控制器
<form id="studentEnrollmentForm" method="post" class="form-horizontal" action="saveStudentByAdmin">
<div class="form-group">
<label class="col-xs-2 control-label">Student Full Name</label>
<div class="group">
<div class="col-xs-3">
<input type="text" class="form-control" name="studentFirstName" id="fn" placeholder="First name" />
</div>
</div>
<div class="col-xs-3">
<input type="text" class="form-control" name="studentMiddleName" placeholder="Middle name" />
</div>
<div class="col-xs-3">
<input type="text" class="form-control" name="studentLastName" placeholder="Last name" />
</div>
</div>
<div class="form-group">
<label class="col-xs-2 control-label">Parents Full Name</label>
<div class="col-xs-3">
<input type="text" class="form-control" name="parentFirstName" placeholder="First name" />
</div>
<div class="col-xs-3">
<input type="text" class="form-control" name="parentMiddleName" placeholder="Middle name" />
</div>
<div class="col-xs-3">
<input type="text" class="form-control" name="parentLastName" placeholder="Last name" />
</div>
</div>
<div class="form-group">
<label class="col-xs-2 control-label">Date-of-birth</label>
<div class="col-xs-3 ">
<div class="input-group input-append date" id="studentDOB">
<input type="Text" class="form-control" name="studentDOB" /> <span
class="input-group-addon add-on"><span
class="glyphicon glyphicon-calendar"></span></span>
</div>
</div>
<label class="col-xs-3 control-label">Gender</label>
<div class="col-xs-3">
<div class="btn-group" data-toggle="buttons">
<label class="btn btn-default">
<input type="radio" name="studentGender" value="male" />Male</label>
<label class="btn btn-default">
<input type="radio" name="studentGender" value="female" />Female</label>
</div>
</div>
</div>
<div class="form-group">
<label class="col-xs-2 control-label">Phone</label>
<div class="col-xs-3">
<input type="text" class="form-control" name="parentPhoneNumber" placeholder="Phone number" />
</div>
<label class="col-xs-3 control-label">Email</label>
<div class="col-xs-3">
<input type="text" class="form-control" name="parentEmail" placeholder="Email" />
</div>
</div>
<div class="form-group">
<label class="col-xs-2 control-label">Permanent Address</label>
<div class="col-xs-3">
<textarea class="form-control" rows="3" name="studentPermanentAddress" /></textarea>
</div>
<label class="col-xs-3 control-label">Present Address</label>
<div class="col-xs-3">
<textarea class="form-control" rows="3" name="studentPresentAddress" /></textarea>
</div>
</div>
<div class="form-group">
<label class="col-xs-2 control-label">Class to join</label>
<div class="col-xs-3">
<!-- <input type="text" class="form-control" name="className" placeholder="Enter Class" /> -->
<select name="className" class="form-control">
<option value="">Select class </option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
</select>
</div>
</div>
<div class="form-group">
<div class="col-xs-1 ">
<button type="submit" class="btn btn-primary ">Submit</button>
</div>
<div class="col-xs-1 ">
<button type="reset" class="btn btn-default" id="rstbutton">Refresh</button>
</div>
</div>
</form>
我的验证程序类
@Controller
@RequestMapping("/")
public class AdminRegistrationController {
@Autowired
private IAdminRegistrationService adminRegistrationService;
@RequestMapping(value = "/register", method = RequestMethod.GET)
public String viewRegistrationPage(Model model) {
StudentDTO studentDTO = new StudentDTO();
ParentDTO pdto=new ParentDTO();
model.addAttribute("teacherDTO", studentDTO);
model.addAttribute("teacherDTO", pdto);
return "StudentEnrollmentByAdmin";
}
@RequestMapping(value = "/saveStudentByAdmin", method = RequestMethod.POST)
public String saveTeacherByAdmin(@ModelAttribute StudentDTO sdto,@ModelAttribute ParentDTO pdto) {
System.out.println(sdto.getStudentFirstName());
System.out.println(pdto.getParentFirstName());
return "redirect:/register"; // this line redirecting to above method to avoid same data insertion again when i press f5
//return "TeacherEnrollmentByAdmin"; To know duplication insertion comment above line and above method current this line
//when you get response page(after insertion of data) press f5 and see in data base
}
}
答案 0 :(得分：0)
在StudentDTO和ParentDTO类中，您可以从javax.validation.constraints包和org.hibernate.validator.constraints包中提供各种验证器注释（如果使用hibernate）。
public class StudentDTO {
@Size(min=6, max=12)
private String firstName;
@Size(min=6, max=12)
private String lastName;
//getter setter
}
然后在控制器方法中添加javax.validation.Valid注释和
org.springframework.validation.BindingResult接口，如下所示。
@RequestMapping(value = "/saveStudentByAdmin", method = RequestMethod.POST)
public String saveTeacherByAdmin(@Valid @ModelAttribute StudentDTO sdto,@ModelAttribute ParentDTO pdto,
BindingResult bindingResult) {
if(bindingResult.hasErrors()) {
System.out.println(bindingResult.getAllErrors().get(0).getDefaultMessage());
}
}