spring mvc and ajax get 400 error - ajax

Question

My model as below and add use the spring mvc.
#Entity
#Table(name="audit_report")
public class AuditReport implements Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "audit_report_id")
private int auditReportId;
#ManyToOne(fetch=FetchType.LAZY,optional = false,cascade=CascadeType.ALL)
#JoinColumn(name="audit_factory_id")
private AuditFactory auditFactory;
#Column(name = "report_id")
private String reportId;
#Column(name = "editor")
private String editor;
#Column(name = "engineer_name")
#NotNull
private String engineerName;
#Column(name="service_date")
#DateTimeFormat(pattern="MM/dd/yyyy")
private Date serviceDate;
#Column(name="audit_date")
#DateTimeFormat(pattern="MM/dd/yyyy")
private Date auditDate;
#OneToMany(cascade = CascadeType.ALL ,fetch = FetchType.LAZY, mappedBy = "auditReport")
#Fetch(FetchMode.SUBSELECT)
private List<Printer> printers;
controller as below,it will get the model and save it.
#ResponseBody
#RequestMapping(value = "/saveAuditReport",method = RequestMethod.POST)
public Map<String,String> newAuditReport(HttpServletRequest request,#RequestBody AuditReport report){
ajax, it get the 400 error if add the serviceDate and it will ok after remove the serviceDate
$.ajax({
type:"post",
url:"<%=path%>/audit/saveAuditReport.do",
contentType : 'application/json; charset=utf-8',
data:JSON.stringify({'serviceDate':pnDate,'engineerName':engineer,'reportId':reportId,"auditReportId":auditReportId,"printers":array,"auditFactory":{"auditFactoryId":factoryId}}),
dataType:'json',
success:function(data, textStatus){
if(data!=null){
if(data.error==null){
layer.msg(data.ok,1,9);
layer.close(pageii);
searchReportById(factoryId,obj);
}else{
layer.msg(data.error);
}
}
},
error : function(XMLHttpRequest, textStatus, errorThrown) {
}
});
ajax, it get the 400 error if add the serviceDate and it will ok after remove the serviceDate

Answer 1

First of all, Your model should have setters and getters. Then, One possible problem is auditReportId field in your model. You used #Id and #GeneratedValue annotations for it. This means that the auditReportId should not be provided by user and hibernate will generate it automatically. But you assigned it manually. So you should remove "auditReportId":auditReportId part from your json data. Try this and if problem not resolved, post exact exception stack trace for better helping.

Answer 2

You have date parsing error ... so add #JsonSerialize(using = DateSerializer.class) annotation above your date field in your model class
#DateTimeFormat(pattern="MM/dd/yyyy")
#JsonSerialize(using = DateSerializer.class)
private Date serviceDate;