Let's say I have following controller.
#RestController()
#RequestMapping("/my/{path}")
public class MyController {
public void some1(#PathVariable("path") String path) {
}
public void some2(#PathVariable("path") String path) {
}
public void some3(#PathVariable("path") String path) {
}
}
Now I want the path be injected into a field.
// I usually do this with JAX-RS
#RequestScope // I added this!
#RestController()
#RequestMapping("/my/{path}")
public class MyController {
public void some1() {
}
public void some2() {
}
public void some3() {
}
// single declaration for all methods
// I know ElementType.FIELD is not one of #PathVariable's target
// Is there any equivalent way to do this with Spring?
#PathVariable("path")
String path
}
Not compiles.
How can I do this?
request url : /a/b/c
#RequestMapping(value = "/a/{some}/c")
public void some(#PathVariable("some") String some) {
}
#PathVariable Annotation which indicates that a method parameter should be bound to a URI template variable.
Examples :
#ResponseBody
RequestMapping(value="/myapp/{id}")
public String method(#PathVariable("id") int id){
return "id="+id;
}
#ResponseBody
#RequestMapping(value="/myapp/{id:[\\d]+}/{name}")
public String method(#PathVariable("id") long id, #PathVariable("name") String name){
return "id= "+id+" and name="+name;
}
Refer more for below links :
Spring mvc #PathVariable
https://www.journaldev.com/3358/spring-requestmapping-requestparam-pathvariable-example
Related
is it posible to generate a custom "presence checking" method name, being a method of the property itself rather the owning object?
I know I can use hasProperty() methods to check for presence of a value...
https://mapstruct.org/documentation/stable/reference/html/#source-presence-check
but with Optional or JsonNullable (from OpenApi nonullable) that checking method is on the property itself, not on the owning object... :-(
I can map JsonNullable or Optional easyly 'using' or extending a simple custom Mapper
#Mapper
public class JsonNullableMapper {
public <T> T fromJsonNullable(final JsonNullable<T> jsonNullable) {
return jsonNullable.orElse(null);
}
public <T> JsonNullable<T> asJsonNullable(final T nullable) {
return nullable != null ? JsonNullable.of(nullable) : JsonNullable.undefined();
}
}
what I would like to achieve is something like this as "presence check":
if(source.getProperty().isPresent()) {
target.set(customMapper.map(source.getProperty()));
}
Any one found a solution for this?
Thanks and regards
I have managed to implement custom lombok extension which generates "presence checknig" methods.
Here is an example project. In short I added #PresenceChecker annotation and implemented Lombok Javac Annotation handler.
It's possible to use it together with other Lombok annotations:
#Getter
#Setter
public class User {
private String name;
}
#Getter
#Setter
#PresenceChecker
public class UserUpdateDto {
private String name;
}
//MapStruct Mapper interface declaration
#Mapper
public interface UserMapper {
void updateUser(UserUpdateDto dto, #MappingTarget User user);
}
Generated code:
public class User {
private String name;
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
}
public class UserUpdateDto {
private boolean hasName;
private String name;
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
this.hasName = true;
}
public boolean hasName() {
return this.hasName;
}
}
//MapStruct Mapper implementation
public class UserMapperImpl implements UserMapper {
#Override
public void updateUser(UserUpdateDto dto, User user) {
if ( dto == null ) {
return;
}
if ( dto.hasName() ) {
user.setName( dto.getName() );
}
}
}
The answer is unfortunately a straight no.
It is not possible in the current version of MapStruct (1.3.1final) and its not on the shortlist for 1.4.0. You could open up an issue on the git repo of MapStruct as feature request.
I have the following converter:
#Component
public class CountryEnumConverter implements Converter<String, CountryEnum> {
#Override
public CountryEnum convert(String country) {
CountryEnum countryEnum = CountryEnum.getBySign(country);
if (countryEnum == null) {
throw new IllegalArgumentException(country + " - Country is not supported!");
}
return countryEnum;
}
}
Registered it is invoked when used for RequestParam
#GetMapping(value = RestApiEndpoints.RESULTS, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<ResultDto> getResults(
Principal principal,
#RequestParam CountryEnum country) {
....
}
But this converter is never invoked when used for field in the RequstBody:
#GetMapping(value = RestApiEndpoints.RESULTS, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<ResultDto> getResults(
Principal principal,
#RequestBody MyBody myBody) {
....
}
public class MyBody {
#NotNull
private CountryEnum country;
public MyBody() {
}
public CountryEnum getCountry() {
return country;
}
public void setCountry(CountryEnum country) {
this.country = country;
}
}
Your existing org.springframework.core.convert.converter.Converter instance will only work with data submitted as form encoded data. With #RequestBody you are sending JSON data which will be deserialized using using the Jackson library.
You can then create an instance of com.fasterxml.jackson.databind.util.StdConverter<IN, OUT>
public class StringToCountryTypeConverter extends StdConverter<String, CountryType> {
#Override
public CountryType convert(String value) {
//convert and return
}
}
and then apply this on the target property:
public class MyBody {
#NotNull
#JsonDeserialize(converter = StringToCountryTypeConverter.class)
private CountryEnum country;
}
Given the similarity of the 2 interfaces I would expect that you could create one class to handle both scenarios:
public class StringToCountryTypeConverter extends StdConverter<String, CountryType>
implements org.springframework.core.convert.converter.Converter<String, CountryType> {
#Override
public CountryType convert(String value) {
//convert and return
}
}
I found out that if I add the following code to my CountryEnum will do the trick.
#JsonCreator
public static CountryEnum fromString(String value) {
CountryEnumConverter converter = new CountryEnumConverter();
return converter.convert(value);
}
I am getting unsupported mediatype error.
My User Profile class looks like this
Class UserProfile{
private int age;
private String name,
private String currenecy;
}
And this is the method in controller
#RequestMapping(value = "/Create", method=RequestMethod.POST,consumes=MediaType.APPLICATION_JSON_VALUE, produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<UserProfileResponse> createUserProfile(#RequestBody UserProfile userProfile)
{
UserProfileResponse userProfileResponse = new UserProfileResponse();
int id = createUserProfileData(userProfile)
userProfileResponse.setId(id);
return new ResponseEntity<UserProfileResponse>(userProfileResponse,HTTPStatus.OK);
}
I am trying to send the request through POSTMAN but getting
Error 415--Unsupported Media Type
My Request in POstman looks like this
Content-Type:application/json
Accept:application/json
Method is : POST
{
"age":28,
"name":"Sam",
"currency": "INR"
}
Suggest me what I am missing?
Don't forget to select "JSON" format, filled in arbitrary JSON string in the textarea.
Also use either Accept or Content-type at a time.
If that doesn't work then can you check like below by removing consumes and adding headers manually.
#RequestMapping(value = "/Create", method=RequestMethod.POST, headers = "Accept=application/json",produces=MediaType.APPLICATION_JSON_VALUE)
I could see the response coming back with your code. I am deliberately returning the same object just to test the connectivity. Following is my code:
#RequestMapping(value = "/create", method= RequestMethod.POST,consumes= MediaType.APPLICATION_JSON_VALUE, produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<UserProfile> createUserProfile(#RequestBody UserProfile userProfile)
{
System.out.println("Got request");
return new ResponseEntity<>(userProfile, HttpStatus.OK);
}
Used getter and setter in UserProfile
public class UserProfile {
private int age;
private String name;
private String currenecy;
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCurrenecy() {
return currenecy;
}
public void setCurrenecy(String currenecy) {
this.currenecy = currenecy;
}
}
Finally after after spending some time.. I figured out why it was not working.
In my java based spring configuration file I missed "#EnableWebMvc".
After adding it, my problem got resolved.
#Configuration
**#EnableWebMvc** // This annotation was missing.
#ComponentScan(basePackages="com.hemant.*")
public class TestConfiguration {}
Anyone know if it`s possible to create one method in my entity, to execute when I put the annotation #Valid in my class?
Example:
I have this Object:
public class Area {
#NotEmpty
private String unidade;
#NotNull
private double tamanho;
public String getUnidade() {
return unidade;
}
public void setUnidade(String unidade) {
this.unidade = unidade;
}
public double getTamanho() {
return tamanho;
}
public void setTamanho(double tamanho) {
this.tamanho = tamanho;
}
}
And I have this method:
#RestController
#RequestMapping("/recolhimento")
public class RecolhimentoController {
#RequestMapping(method = RequestMethod.GET)
public boolean getRecolhimento(#Valid Area area){
...
}
}
so when I call this method the Spring Boot will validate my model Area( but I want to create one method that will be execute when I use #Valid.
it`s possible? how?
Yes, it is possible.
You can find examples in this project: https://github.com/malkusch/validation
Im new using this front end framework application...
I recently started to work with smartgwt and i'm bulding a new application with a Spring MVC integration.
I'm using a ListGrid with a RestDataSource (Consume the Rest service with mvc:annotation-driven for plain JSON)
I can see that the servaice gets consuming properly perhaps my grid is never shown with the data in it.
Can someone help me here ?
Here's my ListGrid class
public class ListGrid extends com.smartgwt.client.widgets.grid.ListGrid {
private final SpringJSONDataSource springJSONDataSource;
public ListGrid(List<DataSourceField> fields) {
this(new PatientDataSource(fields));
}
public ListGrid(SpringJSONDataSource springJSONDataSource) {
this.springJSONDataSource = springJSONDataSource;
init();
}
private void init() {
setAutoFetchData(true);
setAlternateRecordStyles(true);
setEmptyCellValue("???");
setDataPageSize(50);
setDataSource(springJSONDataSource);
}
}
Now there's the DataSource implmentation
public abstract class SpringJSONDataSource extends RestDataSource {
protected final HTTPMethod httpMethod;
public SpringJSONDataSource(List<DataSourceField> fields) {
this(fields, HTTPMethod.POST);
}
public SpringJSONDataSource(List<DataSourceField> fields, HTTPMethod httpMethod) {
this.httpMethod = httpMethod;
setDataFormat(DSDataFormat.JSON);
addDataSourceFields(fields);
setOperationBindings(getFetch());
addURLs();
}
private void addURLs() {
if(getUpdateDataURL() != null)
setUpdateDataURL(getUpdateDataURL());
if(getRemoveDataURL() != null)
setRemoveDataURL(getRemoveDataURL());
if(getAddDataURL() != null)
setAddDataURL(getAddDataURL());
if(getFetchDataURL() != null)
setFetchDataURL(getFetchDataURL());
}
private void addDataSourceFields(List<DataSourceField> fields) {
for (DataSourceField dataSourceField : fields) {
addField(dataSourceField);
}
}
protected abstract OperationBinding getFetch();
protected abstract OperationBinding getRemove();
protected abstract OperationBinding getAdd();
protected abstract OperationBinding getUpdate();
public abstract String getUpdateDataURL();
public abstract String getRemoveDataURL();
public abstract String getAddDataURL();
public abstract String getFetchDataURL();
}
The class PatientDataSource that extends SpringJSONDataSource
public class PatientDataSource extends SpringJSONDataSource {
public PatientDataSource(List<DataSourceField> fields) {
super(fields);
setPrettyPrintJSON(true);
}
#Override
protected OperationBinding getFetch() {
OperationBinding fetch = new OperationBinding();
fetch.setOperationType(DSOperationType.FETCH);
fetch.setDataProtocol(DSProtocol.POSTMESSAGE);
DSRequest fetchProps = new DSRequest();
fetchProps.setHttpMethod(httpMethod.toString());
fetch.setRequestProperties(fetchProps);
return fetch;
}
#Override
public String getFetchDataURL() {
return "/spring/fetchPatients";
}
#Override
protected OperationBinding getRemove() {
return null;
}
#Override
public String getRemoveDataURL() {
return null;
}
#Override
protected OperationBinding getAdd() {
return null;
}
#Override
public String getAddDataURL() {
return null;
}
#Override
protected OperationBinding getUpdate() {
return null;
}
#Override
public String getUpdateDataURL() {
return null;
}
}
My spring controller PatientControler
#Controller
public class PatienController {
Logger logger = Logger.getLogger(PatienController.class);
#Autowired
private PatientServices patientServices;
#RequestMapping(value = "/patientTest", method = RequestMethod.GET)
#ResponseBody
public Object getTest()
{
return patientServices.getAllPatients();
}
#RequestMapping(value = "/fetchPatients", method = RequestMethod.POST)
#ResponseBody
public Object getAllPatients()
{
return patientServices.getAllPatients();
}
}
PatientServiceImpl
public class PatientServicesImpl implements PatientServices {
public List<Patient> getAllPatients() {
List<Patient> patients = new ArrayList<Patient>();
Patient patient;
for(int i = 0 ; i < 500 ; i++){
patient = new Patient();
patient.setDateOfBirth(new Date());
patient.setFirstName("Joe");
patient.setMiddleName("Moe");
patient.setLastName("Blow");
patient.setLastConsultation(new Date());
patient.setSex(Sex.M);
patients.add(patient);
}
return patients;
}
}
*Im Really stuck right now i've been looking for all type of answers .... but so far nothing worked when i tried to override the transformResponse from my RestDataSource impentation the parameter "data" as an OBJECT, returns me an array [object Object],[object Object],[object Object],[object Object],[object Object] *
The Data which is transferred from the RestDataSource has a specific format which is described in the JavaDoc of the RestDataSource
Your server must understand the request and send back a valid response.
At the moment your example doesn't seem to honour the contract.
To debug the traffic send to and from your server you can use the SmartClient-Console. You can open it by a browser bookmark like this:
javascript:isc.showConsole()
Of cause you need to deploy this console by adding the following module to your gwt.xml
<inherits name="com.smartclient.tools.SmartClientTools"/>
Now go to the RPC Tab and check Track-RPCs