[英]How to Validate different model class into one form using Spring MVC JSR-303 Validator
我在jsp
页面中有表格如下:
<springForm:form action="${addAction}" name="frm" method="post" commandName="employee">
<table>
<tr>
<td><label>First Name</label> </td>
<td><springForm:input path="firstName" /></td>
<td><springForm:errors path="firstName" cssClass="error" /></td>
</tr>
<tr>
<td><label>Last Name</label></td>
<td><springForm:input path="lastName" /></td>
<td><springForm:errors path="lastName" cssClass="error" /></td>
</tr>
<tr>
<td><label>Email</label> </td>
<td><springForm:input path="email" /></td>
<td><springForm:errors path="email" cssClass="error" /></td>
</tr>
<tr>
<td><label>Street</label> </td>
<td><springForm:input path="employeeDetail.street" /></td>
<td><springForm:errors path="employeeDetail.street" cssClass="error" /></td>
</tr>
<tr>
<td><label>City</label> </td>
<td><springForm:input path="employeeDetail.city" /></td>
<td><springForm:errors path="employeeDetail.city" cssClass="error" /></td>
</tr>
<tr>
<td><label>State</label> </td>
<td><springForm:input path="employeeDetail.state" /></td>
<td><springForm:errors path="employeeDetail.state" cssClass="error" /></td>
</tr>
<tr>
<td><label>Country</label> </td>
<td><springForm:input path="employeeDetail.country" /></td>
<td><springForm:errors path="employeeDetail.country" cssClass="error" /></td>
</tr>
<tr>
<td colspan="2" style="text-align: center;">
<input type="submit" value="Add Info" />
</td>
</tr>
</table>
</springForm:form>
在这个jsp名字中,姓氏和电子邮件属于一个模型类,即Employee。 最后所有属性如Street,City等属于EmployeeDetails模型类。
public class Employee {
private Long empId;
@Size(min=2, max=30)
private String firstName;
@Size(min=2, max=30)
private String lastName;
@NotEmpty @Email
private String email;
@DateTimeFormat(pattern="MM/dd/yyyy")
@NotNull @Past
private Date doj;
@Phone
private String phone;
private EmployeeDetail employeeDetail;
Getter/Setter
}
EmployeeDetail:
public class EmployeeDetail {
@Size(min=2, max=30)
private String street;
@Size(min=2, max=30)
private String city;
@Size(min=2, max=30)
private String state;
@Size(min=2, max=30)
private String country;
//Getter/Setter
}
我正在单个表单中对两个模型执行验证。 我的Cotroller映射是:
@RequestMapping(value = "/saveEmpInfo", method = RequestMethod.POST)
public String saveEmployee(@Valid Employee employee,
@Valid EmployeeDetail employeeDetail, BindingResult bindingResult) {
employee.setEmployeeDetail(employeeDetail);
if (bindingResult.hasErrors()) {
System.out.println("Returning addInfo.jsp page");
return "addInfo";
}
//future logic
}
要使这项工作,您应该在Employee.class中使用@Valid注释employeeDetails,如下所示:
@Valid
private EmployeeDetail employeeDetail;
现在在控制器中你应该只使用这样的Employee对象:
public String saveEmployee(@Valid Employee employee, BindingResult bindingResult) {
您应该将属于EmployeeDetail
的属性的名称从name="street"
更改为name="employeeDetail.street"
另外,你应该在Employee
参数后面添加一个BindingResult
对象,这样框架就可以存储与Employee相关的绑定错误,当前的BindingResult只适用于EmployeeDetail
实例,所以
saveEmployee(@Valid Employee employee, BindingResult bindingResultEmployee,
@Valid EmployeeDetail employeeDetail, BindingResult bindingResult)
没有它你得到一个错误的请求,用它,请求将实际到达方法,如果设置为调试级别日志将显示确切的绑定错误
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