通过 LocalDateFilter spring 休息控制器时收到错误请求

Question

/api/test?page=-1&size=50&nextDateOfScreening.greaterThan=2020-04-03&sort=id,asc

这是我的传递 url 并且在控制器中收到它，

@GetMapping("/test")
    public ResponseEntity<List<ExampleDTO>> getAllTIBenScrDetails(ExampleCriteria criteria, Pageable pageable) {
        Page<ExampleDTO> page = tIBenScrDetailsQueryService.findByCriteria(criteria, pageable);
        HttpHeaders headers = PaginationUtil.generatePaginationHttpHeaders(ServletUriComponentsBuilder.fromCurrentRequest(), page);
        return ResponseEntity.ok().headers(headers).body(page.getContent());
    }

和ExampleCriteria class as,

public class ExampleCriteria implements Serializable, Criteria {
    private LocalDateFilter nextDateOfScreening; //jhipster LocalDateFilter
}

我收到了错误的日期过滤器请求，

Field error in object 'ExampleCriteria' on field 'nextDateOfScreening.greaterThan': rejected value [2020-04-03]; codes [typeMismatch.ExampleCriteria.nextDateOfScreening.greaterThan,typeMismatch.nextDateOfScreening.greaterThan,typeMismatch.greaterThan,typeMismatch.java.time.LocalDate,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [ExampleCriteria.nextDateOfScreening.greaterThan,nextDateOfScreening.greaterThan]; arguments []; default message [nextDateOfScreening.greaterThan]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'java.time.LocalDate' for property 'nextDateOfScreening.greaterThan'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [java.time.LocalDate] for value '2020-04-03'; nested exception is java.lang.IllegalArgumentException: Parse attempt failed for value [2020-04-03]]

For greaterThanEquals and lessThanEquals bad request error is not getting but for greaterThan and lessThan 有错误。谁能帮我解决这个问题？

Answer 1

首先 greaterThanEquals 在 LocalDateFilter 中不存在。实际上是 greaterOrEqualThan 所以 nextDateOfScreening.greaterOrEqualThan.

这是 "works" 的原因，因为 spring 没有找到 LocalDateFilter setter，所以创建一个 "empty" LocalDateFilter .

对于 lessThan，已找到 setter，但未配置从 String 到 LocalDate 的转换。为了解决这个问题，您必须声明一个自定义转换器 ->

import org.springframework.core.convert.converter.Converter;
import org.springframework.stereotype.Component;

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

@Component
public class LocalDateConverter implements Converter<String, LocalDate> {

    @Override
    public LocalDate convert(final String s) {
        return LocalDate.parse(s, DateTimeFormatter.ofPattern("yyyy-MM-dd"));
    }
}

通过 LocalDateFilter spring 休息控制器时收到错误请求

Getting bad request while passing LocalDateFilter spring rest controller

java

spring

postman

jhipster

spring-restcontroller