I have a model that looks something like this:
#Entity
public class MyModel {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(unique = true, nullable = false)
#RestResource(exported = false)
private int pk;
#Column(unique = true, nullable = false)
private String uuid = UUID.randomUUID().toString();
#Column(nullable = false)
private String title;
public int getPk() {
return pk;
}
public void setPk(int pk) {
this.pk = pk;
}
public String getUuid() {
return uuid;
}
public void setUuid(String uuid) {
this.uuid = uuid;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
As you can see I have an auto-incrementing PK as my ID for the model, but also a random UUID. I want to use the PK in the database as the primary key, but want to use the UUID as a public facing ID. (To be used in URLs etc.)
My repository looks like this:
#RepositoryRestResource(collectionResourceRel = "my-model", path = "my-model")
public interface MyModelRepository extends CrudRepository<MyModel, String> {
#RestResource(exported = false)
MyModel findByUuid(#Param("uuid") String id);
}
As you can see I've set the repository to use a String as the ID.
Finally I set the entity lookup in a config file like this:
#Component
public class RepositoryEntityLookupConfig extends RepositoryRestConfigurerAdapter {
#Override
public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {
config.withEntityLookup().forRepository(MyModelRepository.class, MyModel::getUuid, MyModelRepository::findByUuid);
}
}
This works perfectly well for GET and POST requests, but for some reason I get an error returned on PUT and DELETE methods.
o.s.d.r.w.RepositoryRestExceptionHandler : Provided id of the wrong type for class MyModel. Expected: class java.lang.Integer, got class java.lang.String
Anyone know what might be causing this? I don't understand why it's expecting an Integer.
I may be doing something stupid as I'm quite new to the framework.
Thanks for any help.
The identifier of your domain object is obviously of type int. That means, your repository needs to be declared as extends CrudRepository<MyModel, Integer>.
Related
I'm beginner (sorry for my bad explanation, feel free to correct me) in MyBatis Spring-Boot, I have problem to understand and make it works #Many
I'm using 3 layer logic programming (Presentation Layer, Service Layer, Data Layer)
Thanks for your help :)
I have 3 Tables (it's TB_Products and not TB_Product as on the screenshot):
I would like to get data form table TB_Users and TB_Products to "put" it in DTO
I create 4 java object class SearchEntity, ProductEntity (for Data layer)
I create an interface SearchRepositoryMapper.
I also create a SearchService interface and SearchServiceImpl as well.
Java object class:
SearchEntity
public class SearchEntity implements Serializable{
private static final long serialVersionUID = -9143930742617602050L;
private String id;
private String firstName;
private String lastName;
private List<ProductEntity> products;
// Getters and Setters code .....
}
ProductEntity
public class ProductEntity implements Serializable{
private static final long serialVersionUID = -6525703679290992635L;
private String id;
private String productId;
private String product;
private String number;
private String date;
private String description;
// Getters and Setters code .....
}
SearchRepositoryMapper
public interface SearchRepositoryMapper {
// Get some fields from TB_Users and all fields from TB_Products
#Select("SELECT * FROM TB_Users WHERE id = #{id}")
#Results({
#Result(property = "id", column ="id"),
#Result(property = "firstName", column = "firstName"),
#Result(property = "lastName", column= "lastName"),
#Result(property = "products", javaType = List.class, column="id",
many = #Many(select = "getProductIdByUserId"))})
public SearchEntity findAllInfoByUserId(#Param("id") int id);
#Select("SELECT *, productId FROM TB_Products WHERE productId = #{id}")
public ArrayList<ProductEntity> getProductIdByUserId(#Param("id") int id);
// Find id by uderId and return null if it doesn't exist
#Select("SELECT id FROM TB_Users WHERE userId = #{userId}")
int findIdByUserId(#Param("userId") String userId);
}
SearchServiceImpl
#Service
public class SearchServiceImpl implements SearchService {
#Autowired
SearchRepositoryMapper searchRepository;
#Override
public SearchDto getAllInfoByUserId(String id) {
SearchDto returnValue = new SearchDto(); // Init returnValue as SearchDto
int searchId = searchRepository.findIdByUserId(id); // Init searchId with the TB_Users id
SearchEntity searchEntity = searchRepository.findAllInfoByUserId(searchId);
BeanUtils.copyProperties(searchEntity, returnValue);
return returnValue;
}
}
So when I execute the code and do a GET request I get this error message:
{
"message": "nested exception is org.apache.ibatis.executor.ExecutorException: Statement returned more than one row, where no more than one was expected."
}
I found out that come from the mapper and SearchEntity searchEntity = searchRepository.findAllInfoByUserId(searchId);
But i don't know how to resolve it. The way I wrote the code is wrong
Thanks to correct me
The exception clearly says that the query returns multiple results. Plese verify if the data in the table is correct.
I'm doing a restful app in Spring boot,jpa,mysql. I have annoted some of my model fields #NotBlank to print an error in the creation of an object if those fields are blank.
Now when i'm updating, I don't want to get that error if I don't set some fields in my json body.My goal is to update just the fields which are present.
So I want to know if there is a way not to consider an #NotBlank in my updating method.
This is the code source :
For the Entity
public class Note implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#NotBlank(name)
private String title;
#NotBlank
private String content;
//Getters and Setters
}
The controller
#RestController
#RequestMapping("/api")
public class NoteController {
#Autowired
NoteRepository noteRepository;
// Create a new Note
#PostMapping("/notes")
public Note createNote(#Valid #RequestBody Note note) {
return noteRepository.save(note);
}
// Update a Note
#PutMapping("/notes/{id}")
public Note partialUpdateNote(#PathVariable(value = "id") Long noteId,
#RequestBody Note noteDetails) {
Note note = noteRepository.findById(noteId)
.orElseThrow(() -> new ResourceNotFoundException("Note", "id", noteId));
//copyNonNullProperties(noteDetails, note);
if(note.getTitle()!= null) {
note.setTitle(noteDetails.getTitle());
}else {
note.setTitle(note.getTitle());
}
if(note.getContent()!= null) {
note.setContent(noteDetails.getContent());
}else {
note.setContent(note.getContent());
}
Note updatedNote = noteRepository.save(note);
return updatedNote;
}
// Delete a Note
#DeleteMapping("/notes/{id}")
public ResponseEntity<?> deleteNote(#PathVariable(value = "id") Long noteId) {
Note note = noteRepository.findById(noteId)
.orElseThrow(() -> new ResourceNotFoundException("Note", "id", noteId));
noteRepository.delete(note);
return ResponseEntity.ok().build();
}
}
ResourceNotFoundException is the class responsible to throws errors.
You can use groups for that.
Add two interfaces CreateGroup and UpdateGroup.
Use them by this way:
#NotBlank(groups = CreateGroup.class)
#Null(groups = UpdateGroup.class)
private String title;
In the create endpoint
#Valid #ConvertGroup(from = Default.class, to = CreateGroup.class) Note note
In the update endpoint
#Valid #ConvertGroup(from = Default.class, to = UpdateGroup.class) Note note
Probably you don't need UpdateGroup. It is just to show a common approach.
Also for the nested objects inside Note something like
#ConvertGroup(from = CreateGroup.class, to = UpdateGroup.class)
can be used.
I work with Spring JPA and have the following entity:
#Entity
#Table(name = Constants.ENTITY_TABLE_PREFIX + "ENTRY")
#XmlAccessorType(XmlAccessType.NONE)
#XmlRootElement(name = "monObj_info")
public class EntryXML implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#Column(name = "ID")
#GeneratedValue(strategy = GenerationType.IDENTITY)
#XmlAttribute
private long id;
#Column(name = "ip_address", nullable = true)
#XmlElement
private String ip_address;
#Column(name = "network_element_name", nullable = false)
#XmlElement
private String network_element_name;
public EntryXML() {}
public EntryXML(long id, String ip_address, String network_element_name) {
super();
this.id = id;
this.ip_address = ip_address;
this.network_element_name = network_element_name;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getIp_address() {
return ip_address;
}
public void setIp_address(String ip_address) {
this.ip_address = ip_address;
}
public String getNetwork_element_name() {
return network_element_name;
}
public void setNetwork_element_name(String network_element_name) {
this.network_element_name = network_element_name;
}
}
and the endpoint:
#RestController
public class EntryXMLEndpoint {
#Autowired
private IEntryXMLService service;
#RequestMapping(value = "/restxml", produces = { "application/xml" })
public EntryXML findEntries() {
EntryXML record = service.findById(1);
return record;
}
}
Now the requested response is:
<monObj_info id="1">
<atribute name="ip_address" value="xx.xxx.xxx.x"/>
<atribute name="network_element_name" value="xxxxxx"/>
</monObj_info>
Of course what I get is :
<monObj_info id="1">
<ip_address>xx.xxx.xxx.x</ip_address>
<network_element_name>xxxxxx</network_element_name>
</monObj_info>
I read similar posts , but the problem is I cannot create a List with the required elements inside my Entity Class, since it will not map with any column in the respective table, any suggestions?
You can achieve your goal in a straight-forward but somewhat hackish way.
Since you don't want the ip_address and network_element_name properties
to be marshalled and unmarshalled directly, you need to remove their #XmlElement annotation
and add #XmlTransient.
Instead, you want some <atribute name="..." value="..." /> elements marshalled and unmarshalled.
Therefore you need to add the following things to your EntryXML class:
an attributes property holding a list of attributes.
It is annotated with #XmlElement so that it will be part of XML marshalling and unmarshalling.
It is annotated with #Transient so that it will not be part of database persistence.
a simple helper class Attribute for holding name and value.
name and value are annotated with #XmlAttribute so that they will be part of XML marshalling and unmarshalling.
a Marshal Event Callback (beforeMarshal)
for doing the conversion from ip_address and network_element_name
to the attributes list.
an Unmarshal Event Callback (afterUnmarshal)
for doing the opposite conversion.
#XmlElement(name = "atribute")
#Transient // from package javax.persistence
private List<Attribute> attributes;
// there is no need for getAttributes and setAttributes methods
private static class Attribute {
#SuppressWarnings("unused") // called by the unmarshaller
Attribute() {
}
Attribute(String name, String value) {
this.name = name;
this.value = value;
}
#XmlAttribute
private String name;
#XmlAttribute
private String value;
}
#SuppressWarnings("unused") // this method is called only by the marshaller
private boolean beforeMarshal(Marshaller marshaller) {
attributes = new ArrayList<>();
attributes.add(new Attribute("ip_address", ip_address));
attributes.add(new Attribute("network_element_name", network_element_name));
return true;
}
#SuppressWarnings("unused") // this method is called only by the unmarshaller
private void afterUnmarshal(Unmarshaller unmarshaller, Object parent) {
if (attributes != null) {
for (Attribute attribute : attributes) {
switch (attribute.name) {
case "ip_address":
ip_address = attribute.value;
break;
case "network_element_name":
network_element_name = attribute.value;
break;
}
}
}
}
Then the XML output will look like this:
<monObj_info id="1">
<atribute name="ip_address" value="xx.xxx.xxx.x"/>
<atribute name="network_element_name" value="xxxxxx"/>
</monObj_info>
I am starting working with Spring Boot. My aim is to make a limited search retrieving data from a database. I want to add multiple parameters in the query of the url.
So far I was able using the seek: http://localhost:8080/wsr/search/, to get a full search of the data in the database. But what I want is delimit the search under several conditions adding parameters in the url in the browser as for instance:
http://localhost:8080/data/search/person?name=Will&address=Highstreet&country=UK
http://localhost:8080/data/search/person?name=Will&name=Angie
http://localhost:8080/data/search/person?name=Will&name=Angie&country=UK
The problem I found is that I can't find the way to work with more than one condition. The only thing I got to make it work, is:
http://localhost:8080/data/search/person?name=Will
I surfed the web but no results for this exact problem, too much information but impossible to find this.
The code I have is:
#Entity
#Table(name = "person")
public class Person {
#Id
#GeneratedValue
#Column(name = "id")
private int id;
#Column(name = "name")
private String name;
#Column(name = "address")
private String address;
#Column(name = "country")
private String country;
public Value() {
}
public Value(int id, String name, String address, String country) {
this.id = id;
this.name = name;
this.address = address;
this.country = country;
}
//all getters and setters
}
public class Implementation {
#Autowired
private DataBase dataBase;
public List<Value> findById(#PathVariable final int id) {
return dataBase.findById(id);
}
public List<Value> findByName(#PathVariable final String name) {
return dataBase.findByName(name);
}
public List<Value> findByAddress(#PathVariable final String address) {
return dataBase.findByAddress(address);
}
public List<Value> findByCountry(#PathVariable final String country) {
return dataBase.findByCountry(country);
}
}
//#Component
#RepositoryRestResource(collectionResourceRel = "person", path = "data")
public interface DataBase extends JpaRepository<Value, Integer>{
public List<Value> findAll();
#RestResource(path = "ids", rel = "findById")
public List<Value> findById(#Param("id") int id) throws ServiceException;
#RestResource(path = "name", rel = "findByName")
public List<Value> findByName(#Param("name") String name) throws ServiceException;
#RestResource(path = "address", rel = "findByAddress")
public List<Value> findByAddress(#Param("address") String address) throws ServiceException;
#RestResource(path = "country", rel = "findByCountry")
public List<Value> findByCountry(#Param("country") String country) throws ServiceException;
}
Hope you can help me putting me in the correct way of what should do or is wrong. If possible some code will also be highly appreciated.
Best regards
You can use #RequestParam("nameParameter")annotation to map all the parameters you want. Let's say you have url like :
http://localhost:8080/data/search/person?name=Will&country=UK
then you can have an api like:
...
#RequestMapping(value = "/person")
public String api(#RequestParam("name") String name, #RequestParam("country") String country)
...
We have a microweb service environment in which AbstractAuditingEntity coming from another common micro service. And I want to override #CreatedBy property of this abstract class with my own defined value.
My code is given below.
#MappedSuperclass
#EntityListeners(AuditingEntityListener.class)
public abstract class AbstractAuditingEntity {
#Column(name = "created_by", insertable = true, updatable = false, nullable = false)
#CreatedBy
private String createdBy;
#Column(name = "created_date", insertable = true, updatable = false, nullable = false)
#Type(type = "org.jadira.usertype.dateandtime.joda.PersistentDateTime")
#CreatedDate
private DateTime createdDate;
#Column(name = "last_modified_by", nullable = false)
#LastModifiedBy
private String lastModifiedBy;
#Type(type = "org.jadira.usertype.dateandtime.joda.PersistentDateTime")
#LastModifiedDate
private DateTime lastModifiedDate;
// #Transient
public abstract Long getInternalId();
// #Transient
public abstract void setInternalId(Long internalId);
public DateTime getCreatedDate() {
return createdDate;
}
public void setCreatedDate(DateTime createdDate) {
this.createdDate = createdDate;
}
public DateTime getLastModifiedDate() {
return lastModifiedDate;
}
public void setLastModifiedDate(DateTime lastModifiedDate) {
this.lastModifiedDate = lastModifiedDate;
}
public String getCreatedBy() {
return createdBy;
}
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
}
public String getLastModifiedBy() {
return lastModifiedBy;
}
public void setLastModifiedBy(String lastModifiedBy) {
this.lastModifiedBy = lastModifiedBy;
}
}
And my Domain class is like
#Entity
#Table(name = "programs")
#AttributeOverride(name = "createdBy", column = #Column(name = "created_by"))
public class Program extends AbstractAuditingEntity {
#Id
#SequenceGenerator(name = "programs_seq", sequenceName = "programs_seq")
#GeneratedValue(generator = "programs_seq")
#Column(name = "internal_id", nullable = false)
private Long internalId;
private String programName;
#Override
public String toString() {
return ToStringBuilder.reflectionToString(this, ToStringStyle.MULTI_LINE_STYLE);
}
//Start getters & setters - auto generated by IDE
#Override
public Long getInternalId() {
return internalId;
}
#Override
public void setInternalId(Long internalId) {
this.internalId = internalId;
}
public String getProgramName() {
return programName;
}
public void setProgramName(String programName) {
this.programName = programName;
}
}
When we try to persist this domain object in the database, user defined value provided by me is not getting persist, instead Spring framework still adding its own value. I have tried #AttributeOverride but it doesn't work in my case.
Thanks in advance for help.
I got a solution as below.
#PrePersist
private void setCreateByNew() {
setCreatedBy("anonymousUser");
}
Using #PrePersist I am able to override value which I am getting from common framework.
An alternate solution is to set the securityContext
SecurityContextHolder.getContext().setAuthentication(___{AuthToken}___)
with the username/principal you are using to auto populate audit fields before entity save and reset it after that. (for message or event processing in asynchronous fashion). This populates both #Createdby and #LastUpdatedBy from the JPA AuditAware listener.
#PrePersist will only work if we are trying to hardcode a pre-defined String setCreatedBy("anonymousUser"); as indicated above. It does not allow us to pass in the username/name of the user as parameter to the method.
for : user defined value provided by me is not getting persist, instead Spring framework still adding its own value
you can do it with AuditorAware interface. 3.1.3 AuditorAware
In case you use either #CreatedBy or #LastModifiedBy, the auditing
infrastructure somehow needs to become aware of the current principal.
To do so, we provide an AuditorAware SPI interface that you have to
implement to tell the infrastructure who the current user or system
interacting with the application is. The generic type T defines of
what type the properties annotated with #CreatedBy or #LastModifiedBy
have to be.
Here’s an example implementation of the interface using Spring
Security’s Authentication object:
Example 3.2. Implementation of AuditorAware based on Spring Security
class SpringSecurityAuditorAware implements AuditorAware<User> {
public User getCurrentAuditor() {
Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
if (authentication == null || !authentication.isAuthenticated()) {
return null;
}
return ((MyUserDetails) authentication.getPrincipal()).getUser();
}
}