I'm working on some project which needs to extract data from DB and I use Spring MVC to build model from DB for selecting data.
Here is the problem with my JSP page:
<form action="result" method="get" >
<table>
<thead>
<tr>
<th>Date to select:</th>
<th>Name to select:</th>
<th>Type to select:</th>
</tr>
</thead>
<tbody>
<tr>
<td><form:select path="listOfDates">
<form:option value="NONE"> --SELECT--</form:option>
<form:options items="${listOfDates}"></form:options>
</form:select>
</td>
<td><form:select path="listOfInstitutionsNames">
<form:option value="NONE"> --SELECT--</form:option>
<form:options items="${listOfInstitutionsNames}"></form:options>
</form:select>
</td>
<td>
<form:select path="listOfInstitutionsTypes">
<form:option value="NONE"> --SELECT--</form:option>
<form:options items="${listOfInstitutionsTypes}"></form:options>
</form:select>
</td>
</tr>
</tbody>
<tfoot>
<tr>
<td><input type="submit" value="Извлечь"/></td>
</tr>
</tfoot>
</table>
</form>
As you can see I try to use <form:select>
from Spring
tag library.
Question:
but when it's preparing my model with this controller:
@Controller
public class HomeController{
@Autowired
private ControllerSupportClass controllerSupportClass;
@RequestMapping(value="/search", method=RequestMethod.GET)
public String search(Model model) {
List<Date> listOfDates = controllerSupportClass.findAllDatesForm();
List<String> listOfInstitutionsNames = controllerSupportClass.findAllInstitutionsForm();
List<String> listOfInstitutionsTypes = controllerSupportClass.findAllTypesForm();
model.addAttribute("listOfInstitutionsTypes", listOfInstitutionsTypes);
model.addAttribute("listOfInstitutionsNames", listOfInstitutionsNames);
model.addAttribute("listOfDates", listOfDates);
return "search";
}
@RequestMapping(value ="/result", method=RequestMethod.GET)
public String SecondActionPage(@RequestParam String particularDate,
@RequestParam String nameOfInstitution,
@RequestParam String typeName,
Model model) throws Exception {
if(particularDate !="" && nameOfInstitution.trim() !="" && typeName.trim()=="") {
controllerSupportClass.findWithDateAndName(nameOfInstitution, particularDate, model);
} else if(particularDate.trim() !="" && nameOfInstitution.trim() =="" && typeName.trim() !="") {
controllerSupportClass.findWithAddedDateAndType(typeName, particularDate, model);
} else if(particularDate.trim() !="" && nameOfInstitution.trim() =="" && typeName.trim() ==""){
controllerSupportClass.findWithAddedDate(particularDate, model);
} else if(particularDate.trim() !="" && nameOfInstitution.trim() !="" && typeName.trim() !="") {
throw new Exception("Search by choose all parameters is not exceptable");
} else {
throw new Exception("You didn't put any search parameters");
}
return "search";
}
}
It gives me an error like this:
WARN : org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/controller/] in DispatcherServlet with name 'appServlet' Hibernate: select distinct creationda0_.DATE_ID as DATE1_0_, creationda0_.CHILD_ADMISSION_DATE as CHILD2_0_, creationda0_.CHILD_GO_SCHOOL_DATE as CHILD3_0_, creationda0_.PARTICULAR_DATE as PARTICULAR4_0_, creationda0_.VERSION as VERSION0_ from CREATION_DATE creationda0_ WARN : org.hibernate.util.JDBCExceptionReporter - SQL Error: 0, SQLState: S1009 ERROR: org.hibernate.util.JDBCExceptionReporter - Value '0000-00-00' can not be represented as java.sql.Date Jun 19, 2013 3:26:53 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet [appServlet] in context with path [/controller] threw exception [Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute query] with root cause java.sql.SQLException: Value '0000-00-00' can not be represented as java.sql.Date
If you need my Entity class it's here I'm using Date
from java.util
, but I go with @Temporal
annotation to convert it from SQL to unit Date
as I understand:
@Entity
@Table(name="CREATION_DATE")
public class CreationDate implements Serializable {
private int dateId;
@Id
@GeneratedValue(strategy=IDENTITY)
@Column(name="DATE_ID")
public int getDateId() {
return dateId;
}
public void setDateId(int dateId) {
this.dateId = dateId;
}
private int version;
@Version
@Column(name="VERSION")
public int getVersion() {
return version;
}
public void setVersion(int version) {
this.version = version;
}
private Date particularDate;
@Temporal(TemporalType.DATE)
@DateTimeFormat(pattern="yyyy-MM-dd")
@Column(name="PARTICULAR_DATE")
public Date getParticularDate() {
return particularDate;
}
public void setParticularDate(Date particularDate) {
this.particularDate = particularDate;
}
private Date childGoSchoolDate;
@Temporal(TemporalType.DATE)
@DateTimeFormat(pattern="yyyy-MM-dd")
@Column(name="CHILD_GO_SCHOOL_DATE")
public Date getChildGoSchoolDate() {
return childGoSchoolDate;
}
public void setChildGoSchoolDate(Date childGoSchoolDate) {
this.childGoSchoolDate = childGoSchoolDate;
}
private Date childAdmissionDate;
@Temporal(TemporalType.DATE)
@DateTimeFormat(pattern="yyyy-MM-dd")
@Column(name="CHILD_ADMISSION_DATE")
public Date getChildAdmissionDate() {
return childAdmissionDate;
}
public void setChildAdmissionDate(Date childAdmissionDate) {
this.childAdmissionDate = childAdmissionDate;
}
}
Assuming that the problem with data type conversion is because MVC uses String
, but the actual type is Date
.
In MySql '0000-00-00'
is considered a valid date, but it can't be repesented as java.sql.Date.
You could use a query that returns NULL in case date is '0000-00-00'
, or the actual value otherwise:
SELECT
CASE WHEN `date`!='0000-00-00' THEN `date` END new_date
FROM
yourtable
or you can add to your datasource connection string this:
zeroDateTimeBehavior=convertToNull
and dates as '0000-00-00'
will be automatically converted to NULL.