@GetMapping("/v1/something/find-all")
public List<Object> findAllSomething(
@RequestParam LocalDateTime localDateTime
) {
return Collections. emptyList();
}
public List<Object> getAllSomething(LocalDateTime localDateTime) {
return webClient.get()
.uri("/v1/something/find-all", uriBuilder -> uriBuilder
.queryParam("localDateTime", localDateTime)
.build())
.retrieve()
.bodyToFlux(Object.class)
.collectList()
.block();
}
ConversionFailedException occurs.org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.time.LocalDateTime'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [@org.springframework.web.bind.annotation.RequestParam @org.springframework.format.annotation.DateTimeFormat java.time.LocalDateTime] for value '2022-12-07T00:36:43.689561'; nested exception is java.lang.IllegalArgumentException: Parse attempt failed for value [2022-12-07T00:36:43.689561]
at org.springframework.web.method.annotation.AbstractNamedValueMethodArgumentResolver.resolveArgument(AbstractNamedValueMethodArgumentResolver.java:133)
at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:122)
at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:179)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:146)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
RequestParam passed as HTTP Query String is treated as String.String -> LocalDateTime type conversion.@GetMapping("/v1/something/find-all")
public List<Object> findAllSomething(
@RequestParam @DateTimeFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss") LocalDateTime localDateTime
) {
return Collections. emptyList();
}
DateTimeFormat specified in the API as much as possible.public static final DateTimeFormatter ISO_LOCAL_DATE_TIME_WITHOUT_NANO_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss");
public List<Object> getAllSomething(LocalDateTime localDateTime) {
return webClient. get()
.uri("/v1/something/find-all", uriBuilder -> uriBuilder
.queryParam("localDateTime", localDateTime.format(ISO_LOCAL_DATE_TIME_WITHOUT_NANO_FORMATTER))
.build())
.retrieve()
.bodyToFlux(Object.class)
.collectList()
.block();
}
In fact, if you organize the formatting only in Caller and blow out the nano seconds, the API seems to be called normally, but if you can, both are matched.