I want to send an extjs request to the server.One of the parameter in the extjs request is of the type boolean.
params:
{
name : 'John',
active : true/false
}
On the server side the action has a bean as a parameter (MyBean) which hold the values sent by the extjs request.
#RequestMapping(value = "save", method = RequestMethod.GET)
public void saveUser(MyBean bean) {
System.out.println("name : " +bean.getName());
System.out.println("active : "+bean.getActive());
}
Value Object is as follows :
public class MyBean
{
public String name;
public boolean active;
//getters & setters
}
The code bean.getActive() prints false even if the value sent by the extjs code is true.
Please tell me what is required to send a boolean value as parameter from the extjs code.
var myObjectToSend = {
"name": "jhon doe",
"active": true
}
Ext.JSON.encode(myObjectToSend);
Then you can receive it in java as a single object, decode it (with jackson for example) and then access the object atributes ... best regards
Related
i have a common problem to test Post-Request with Bean Validation.
Requirements: ContentType is APPLICATION_FORM_URLENCODED and NOT JSON
Model under test:
public class Message extends Auditable{
#Id
private long id;
private String messageText;
#NotNull
private Link link;
}
How it works on browser properly:
I'am just submit data. On Browser Dev-Tools, i see, that browser sends
only to fields: messageText="my message" and link="1"
problem: during MockMVC Post-Request, i can not convert param-value "1" to the object Link.
this.mockMvc.perform(MockMvcRequestBuilders.post("/links/link/comments")
.contentType(MediaType.APPLICATION_FORM_URLENCODED)
.param("link", "1")
.param("messageText", "hello message"))
.andDo(print())
.andExpect(status().is3xxRedirection());
}
My post-handler on controller
#PostMapping(value = "/link/message")
public String saveNewComment(#Valid Message message, BindingResult bindingResult, RedirectAttributes attributes) {
if(bindingResult.hasErrors()) {
model.addAttribute("newMessage", message);
return "link/submit";
}
}
BindingResult complains about TypeMismatch from "String" to "Link".
How can i pass some Marschal- or Converter-Object, which enables BindingResult to convert string-value to appropriate object?
I don't want to implement on server-side own validator-object (which implements validator interface), cause on production it works properly without any additional code.
I've solved this issue by myself with small fix. Nested objects should parameterize with explizit field-name. Instead of param("link", "1") it must be param("link.id", "1")
I've RESTful service Spring MVC based.
The service has a RESTful resource method that returns the following response:
public class OperationalDataResponse<T> {
private String status;
private String statusMessage;
private T result;
//getters and setters
}
This response object encapsulates the result object of type T.
On the client side I use RestTemplate with GsonHttpMessageConverter added.
I get the response from service as a ResponseEntity
I handle the generic response with runtime Type as below:
public class OperationalDataRestClient<REQ,RESULT_TYPE> {
public OperationalDataResponse<RESULT_TYPE> getOperationalData(String resourcePath, Map<String, Object> urlVariables, Class<RESULT_TYPE> resultType) {
//code to invoke service and get data goes here
String responseString = responseEntity.getBody();
response = GsonHelper.getInstance().fromJson(responseString, getType(OperationalDataResponse.class, resultType));
}
Type getType(final Class<?> rawClass, final Class<?> parameter) {
return new ParameterizedType() {
#Override
public Type[] getActualTypeArguments() {
return new Type[] { parameter };
}
#Override
public Type getRawType() {
return rawClass;
}
#Override
public Type getOwnerType() {
return null;
}
};
}
}
This works like a charm as long as my resultType is a non-collection class.
So, this works great from caller code:
getOperationalData(someResourcePath, someUrlVariables, MyNonGenericClass.class)
However if my resultType is a collection (say, List<String> or List<MyNonGenericClass>)
then I don't know how to pass the resultType Class from the caller code.
For example, from caller code,
getOperationalData(someResourcePath, someUrlVariables, List.class)
or
getOperationalData(someResourcePath, someUrlVariables, List<MyNonGenericClass>.class)
throws compilation error.
I tried passing on ArrayList.class as well but that too doesn't work.
Any suggestion how can I pass a generic collection as a resultType from caller code (in other words, as an example, how can I pass the class object of a List<String> or List<MyNonGenericClass> from caller code ?)
If you know that ResultType is coming as a List, Then it will obvious fail like you said compilation issue.Why? because you are trying to send a List when you method only accepts a single value.In order to over come that issue you will have to change the method arguments to the following
public OperationalDataResponse<RESULT_TYPE> getOperationalData(String resourcePath, Map<String, Object> urlVariables, List<Class<RESULT_TYPE>> resultType){
....
}
and you will have to make some slight modification to getType() Method,loop it and then pass each class value to getType method like so
for(MyNonGenericClass myClass:mylist){
getType(OperationalDataResponse.class, myClass.getClass());
}
We are trying to resolve issues related to a security scan. It is considered a vulnerability to expose any information about underlying classes. The scanner is sending invalid data to this endpoint:
#PostMapping(value = "/accountKey", params = "update")
public String accountKeyUpdate(#Valid #ModelAttribute("accountKeyForm") AccountKeyForm key, BindingResult bindingResult, Authentication authentication)
The invalid input looks like this, where "description" is a valid key in the entity, but adding "[]" to the end of the property name in the POST data is causing the parsing error:
description[]:
The server returns the following:
{
"timestamp": "2018-04-20T14:28:36.653Z",
"status": 500,
"error": "Internal Server Error",
"message": "Invalid property 'description[]' of bean class
[com.imsweb.seerapi.account.AccountKeyForm]: Property referenced in indexed property path 'description[]' is neither an array nor a List nor a Map; returned value was []",
"path": "/accountKey/"
}
This is what appears in the log:
org.springframework.beans.InvalidPropertyException: Invalid property 'description[]' of bean class [com.imsweb.seerapi.account.AccountKeyForm]: Property referenced in indexed property path 'description[]' is neither an array nor a List nor a Map; returned value was []
at org.springframework.beans.AbstractNestablePropertyAccessor.processKeyedProperty(AbstractNestablePropertyAccessor.java:375) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:275) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:266) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:97) ~[spring-beans-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.validation.DataBinder.applyPropertyValues(DataBinder.java:839) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.validation.DataBinder.doBind(DataBinder.java:735) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.bind.WebDataBinder.doBind(WebDataBinder.java:197) ~[spring-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.bind.ServletRequestDataBinder.bind(ServletRequestDataBinder.java:107) ~[spring-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.bindRequestParameters(ServletModelAttributeMethodProcessor.java:157) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:153) ~[spring-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:124) ~[spring-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:161) ~[spring-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:131) ~[spring-web-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:877) ~[spring-webmvc-5.0.5.RELEASE.jar:5.0.5.RELEASE]
The issue is that I cannot find a way to gracefully handle the invalid input. It looks like it happens when the #ModelAttribute is converting the POST body into an AccountKeyForm. That is before it gets inside the controller method. I would prefer to handle the error and just forward them to another page. Alternatively if the message said
"message": "Invalid property 'description[]'"
That would be fine as well.
UPDATE:
I can trap that specific exception using an #ExceptionHandler:
#ControllerAdvice
public class WebControllerAdvice {
#ExceptionHandler(InvalidPropertyException.class)
public String handleBadPropertyException() {
return "error";
}
}
That means I will just get a generic message. That will not pick up other types of exceptions that may fall through the cracks. Is there a better way?
UPDATE:
Here is the entity class. It is a simple bean with two properties.
public class AccountKeyForm {
private String _apiKey;
private String _description;
public AccountKeyForm() {
}
public AccountKeyForm(String apiKey) {
_apiKey = apiKey;
}
public AccountKeyForm(String apiKey, String description) {
_apiKey = apiKey;
_description = description;
}
public String getApiKey() {
return _apiKey;
}
public void setApiKey(String apiKey) {
_apiKey = apiKey;
}
#Size(max = 256)
public String getDescription() {
return _description;
}
public void setDescription(String description) {
_description = description;
}
}
The solution for this is indeed to wrap the exception using the ControllerAdvice, but you need to tweak the response to your needs.
So, instead of returning a String, you should return a full ResponseEntity with a httpStatus and body. The body should be populated with an ErrorResponse where you can define your domain error code if you have something like that and your custom message.
Something like the code below should work.
#ControllerAdvice
public class WebControllerAdvice {
#ExceptionHandler(InvalidPropertyException.class)
public ResponseEntity<ErrorResponse> handle(InvalidPropertyException e) {
return ResponseEntity.status(httpStatus)
.body(new ErrorResponse(errorCode, message));
}
}
public class ErrorResponse {
private final String code;
private final String message;
public ErrorResponse(String code, String message) {
this.code = code;
this.message = message;
}
}
It's clearing saying the following
Property referenced in indexed property path 'description[]' is neither an array nor a List nor a Map; returned value was []
Which means that the description field which is being sent from the request is of type array/List/map, so accordingly,you have to change the Model class AccountKeyForm description
from private String _description; to private List<String> _description; or
private Map<String> _description; you will need to figure out what collection type is being sent :)
or you'll have to modify how the request is being sent and ensure that it send only String type and not of List/Map type
The former is an easier solution.
Hope it helps :)
I have this Object
public class Deportista implements Serializable {
private static final long serialVersionUID = 6229604242306465153L;
private String id;
...
#NotNull(message="{field.null}")
public String getId() {
return id;
}
...
}
I have the following Controller's methods
#InitBinder(value="deportistaRegistrar")
public void registrarInitBinder(WebDataBinder binder) {
logger.info(">>>>>>>> registrarInitBinder >>>>>>>>>>>>>");
}
#RequestMapping(value="/registrar.htm", method=RequestMethod.GET)
public String crearRegistrarFormulario(Model model){
logger.info("crearRegistrarFormulario GET");
Deportista deportista = new Deportista();
model.addAttribute("deportistaRegistrar", deportista);
return "deportista.formulario.registro";
}
#RequestMapping(value="/registrar.htm", method=RequestMethod.POST)
public String registrarPerson(#Validated #ModelAttribute("deportistaRegistrar") Deportista deportista,
BindingResult result){
logger.info("registrarPerson POST");
logger.info("{}", deportista.toString());
if(result.hasErrors()){
logger.error("There are errors!!!!");
for(ObjectError objectError : result.getAllErrors()){
logger.error("Error {}", objectError);
}
return "deportista.formulario.registro";
}
logger.info("All fine!!!!");
this.fakeMultipleRepository.insertDeportista(deportista);
return "redirect:/manolo.htm";
}
Until here the Controller is able to create a form (GET) and submit (POST) a new command object, Validation code works well.
The problem is with the update.
I have the following:
#InitBinder(value="deportistaActualizar")
public void actualizarInitBinder(WebDataBinder binder) {
logger.info(">>>>>>>> actualizarInitBinder >>>>>>>>>>>>>");
binder.setDisallowedFields("id");
}
Observe I have binder.setDisallowedFields("id")
public String crearActualizarFormulario(#PathVariable("id") String id, Model model){
logger.info("crearActualizarFormulario GET");
Deportista deportista = this.fakeMultipleRepository.findDeportista(id);
model.addAttribute("deportistaActualizar", deportista);
return "deportista.formulario.actualizacion";
}
#RequestMapping(value="/{id}/actualizar.htm", method=RequestMethod.POST)
public String actualizarPerson(#Validated #ModelAttribute("deportistaActualizar") Deportista deportista,
BindingResult result){
logger.info("actualizarPerson POST");
logger.info("{}", deportista.toString());
if(result.hasErrors()){
logger.error("There are errors!!!!");
for(ObjectError objectError : result.getAllErrors()){
logger.error("Error {}", objectError);
}
return "deportista.formulario.actualizacion";
}
logger.info("All fine!!!!");
this.fakeMultipleRepository.updateDeportista(deportista);
return "redirect:/manolo.htm";
}
The problem is:
when the form or command has any error, the controller re-render the view and the form appear showing the error messages how is expected, but without the ID value
or
if I try to update the object, of course keeping the id value, and without any error to simply proceed to update, it fails
The following appears in the Console:
- -------- createCollections ---------------
- >>>>>>>> actualizarInitBinder >>>>>>>>>>>>>
- Skipping URI variable 'id' since the request contains a bind value with the same name.
- actualizarPerson POST
- Deportista [id=null, nombre=Manuel, ...]
- There are errors!!!!
- Error Field error in object 'deportistaActualizar' on field 'id': rejected value [null]; codes [NotNull.deportistaActualizar.id,NotNull.id,NotNull.java.lang.String,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [deportistaActualizar.id,id]; arguments []; default message [id]]; default message [The field must be not empty]
The id is null. How I can around this problem keeping the Request Scope?
I have an alternate controller which is working with #SessionAttributes and all works perfect. But since is a huge risk if the user has many tabs open in the same web browser, one for create and other for updating, all is going to be very wrong. According with Spring MVC + Session attributes and multiple tabs, request scope should be used instead of session scope. It has sense.
Sadly seems Spring is not going to fix this:
#SessionAttributes doesn't work with tabbed browsing
Addition
According with your suggestion, I have the following:
#ModelAttribute("deportistaActualizar")
public Deportista populateActualizarFormulario(#RequestParam(defaultValue="") String id){
logger.info("populateActualizarFormulario - id: {}", id);
if(id.equals(""))
return null;
else
return this.fakeMultipleRepository.findDeportista(id);
}
Observe the method uses #RequestParam, my problem is how update that method to work when the URL to update has the following style
http://localhost:8080/spring-utility/deportista/1/actualizar.htm. There is no param in the URL, therefore #RequestParam is useless now.
I already have read the Spring Reference documentation:
Using #ModelAttribute on a method
Second Addition
Yes, you was right, and I did that yesterday, but I forget to share the following:
#ModelAttribute("deportistaActualizar")
public Deportista populateActualizarFormulario(#PathVariable(value="id") String id){
logger.info("populateActualizarFormulario - id: {}", id);
if(id.equals(""))
return null;
else
return this.fakeMultipleRepository.findDeportista(id);
}
Since a #ModelAttribute is called always before by any handler method, the following URL fails http://localhost:8080/spring-utility/deportista/registrar.htm, the following appears on the page
HTTP Status 400 -
type Status report
message
description The request sent by the client was syntactically incorrect.
Of course because the URL does not contains the expected id. Therefore I can't create new records to later edit/see.
I can confirm, that for the following work:
http://localhost:8080/spring-utility/deportista/1/detalle.htm
http://localhost:8080/spring-utility/deportista/1/actualizar.htm
the id (1) is retrieved.
How I could resolve this?
Thank You
As I read explanation here, I found that Spring can automatically bind GET request parameter to a type. Below is the sample code from the link.
#Controller
#RequestMapping("/person")
public class PersonController {
...
#RequestMapping("/create")
public String create(Person p) {
//TODO: add Person to DAO
return "person/show";
}
}
Can someone tell me how spring do this? What bean that contains the logic to convert the parameter onto command type (Person type)?
The trick is done here: org.springframework.web.method.annotation.ModelAttributeMethodProcessor#resolveArgument()
This is the excerpt of code where it actually binds the class to the values:
String name = ModelFactory.getNameForParameter(parameter);
//Here it determines the type of the parameter and creates an instance
Object attribute = (mavContainer.containsAttribute(name)) ?
mavContainer.getModel().get(name) : createAttribute(name, parameter, binderFactory, request);
//Then it binds the parameters from the servlet to the previously created instance
WebDataBinder binder = binderFactory.createBinder(request, attribute, name);
if (binder.getTarget() != null) {
bindRequestParameters(binder, request);
validateIfApplicable(binder, parameter);
if (binder.getBindingResult().hasErrors()) {
if (isBindExceptionRequired(binder, parameter)) {
throw new BindException(binder.getBindingResult());
}
}
}