如何使用BindingResult在Spring中检查特定行是否具有针对多行验证的验证错误

当前逻辑将检查BindingResult是否有错误，并在jsp中显示数据和错误。所需的逻辑是检查每一行的错误，并仅显示包含验证错误的那些行，并更新没有验证错误的行。@Autowired私人IncidentExtractStgService eventExtractStgService;

@RequestMapping(value = "/validatingIncidentList", method = RequestMethod.POST)
public String ValidateIncidentList( @Valid @ModelAttribute("incidentsForm") IncidentsForm incidentsForm,
        BindingResult bindingResult,RedirectAttributes redirectAttributes) {
    if (bindingResult.hasErrors()) {


        for(ObjectError error: bindingResult.getAllErrors()){

            System.out.println(error);
        }

        redirectAttributes.addFlashAttribute("org.springframework.validation.BindingResult.incidentsForm", bindingResult);
        redirectAttributes.addFlashAttribute("incidentsForm", incidentsForm);

        return "redirect:/validateIncidentList";
    }
    else
    {
        for(IncidentExtractStg ie : incidentsForm.getIncidents()) {

            ie.setValidated(1);
            incidentExtractStgService.update(ie);

            System.out.println(ie.getNumber()+"     "+ie.getWaitTime());
        }


    return  "redirect:/validateIncidentList";

    }

下面的代码片段将检查模型是否包含属性“ incidetsForm”，如果包含，则将其发送到example.jsp，后者将依次显示数据和验证错误。

@RequestMapping(value = "/validateIncidentList", method = RequestMethod.GET)
 public String incidentList(Model model) {
    if (!model.containsAttribute("incidentsForm")) {
            List<IncidentExtractStg> incidents = incidentExtractStgDao.validateList();
            incidentsForm.setIncidents(incidents);
            model.addAttribute("incidentsForm", incidentsForm);
            return "example";
    }

     model.addAttribute("errormessage","Please Check the Validation Errors column for Errors");
     return "example";
}

Example.jsp代码段

<c:forEach var="ie" items="${incidentsForm.incidents}" varStatus="status">
             <tr>
                  <td><form:input path="incidents[${status.index}].id" value="${ie.id}" readonly ="true"/></td>
                 <td><form:errors path="incidents[${status.index}].id" cssClass="error" /></td> 

                <td><form:input path="incidents[${status.index}].number" value="${ie.number}"/></td>
                <td><form:errors path="incidents[${status.index}].number" cssClass="error" /></td> 
            </tr>

IncidentsForm.java：

import java.util.List;
import javax.validation.Valid;

import com.infosys.sla.model.IncidentExtractStg;

public class IncidentsForm {

@Valid
private List<IncidentExtractStg> incidents;



public List<IncidentExtractStg> getIncidents() {
    return incidents;
}


public void setIncidents(List<IncidentExtractStg> incidents) {

    this.incidents = incidents;
}
}

IncidentExtractStg.java代码段

@Entity
@Table(name="incident_extract_stg")
public class IncidentExtractStg {

@Id
@Column(name="ies_id")
private int id;

@NotBlank(message="number cannot be empty")
@Pattern(regexp="[A-Za-z0-9]*",message="number can contain only alphabets and numbers")
@Column(name="ies_number")
private String number;