使用Spring@RestController和@QuerydsLPredicate处理带有ZonedDateTime参数的GET

Question

@RequestMapping(value = "/invoices", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
@Timed
public ResponseEntity<List<Invoice>> getAllInvoices(@QuerydslPredicate(root = Invoice.class) Predicate predicate, Pageable pageable) throws URISyntaxException {
    log.debug("REST request to get a page of Invoices");
    Page<Invoice> page = invoiceService.findAll(predicate, pageable);
    HttpHeaders headers = PaginationUtil.generatePaginationHttpHeaders(page, "/api/invoices");
    return new ResponseEntity<>(page.getContent(), headers, HttpStatus.OK);
}

当我尝试使用以下URL调用endpoint时:http://localhost:3000/api/invotions？page=0&size=20&sort=id,asc&sort=id&transactiondate=2016-05-09T22:00:00.000z&transactiondate=2016-05-17T21:59:59.999z

将引发此异常：

java.time.format.DateTimeParseException: Text '2016-05-09T22:00:00.000Z' could not be parsed at index 10
    at java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:1949) ~[na:1.8.0_91]
    at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1851) ~[na:1.8.0_91]
    at java.time.ZonedDateTime.parse(ZonedDateTime.java:597) ~[na:1.8.0_91]
    at org.springframework.format.datetime.standard.TemporalAccessorParser.parse(TemporalAccessorParser.java:80) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.format.datetime.standard.TemporalAccessorParser.parse(TemporalAccessorParser.java:47) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.format.support.FormattingConversionService$ParserConverter.convert(FormattingConversionService.java:194) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.core.convert.support.ConversionUtils.invokeConverter(ConversionUtils.java:35) ~[spring-core-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:192) ~[spring-core-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.data.querydsl.binding.QuerydslPredicateBuilder.convertToPropertyPathSpecificType(QuerydslPredicateBuilder.java:217) ~[spring-data-commons-1.11.2.RELEASE.jar:na]
..... etc etc

只使用ZonedDateTime对象解析给定的日期是可行的（在Ideone.com上），但是其他的可能是错误的。我在SO上发现了这个问题：使用Spring@RestController处理带有ZonedDateTime参数的HTTP GET

@RequestMapping(value = "/invoices", params="action", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
@Timed
public ResponseEntity<List<Invoice>> findInvoices(@RequestParam("dt") @DateTimeFormat(iso=ISO.DATE_TIME) ZonedDateTime dt,Pageable pageable) throws URISyntaxException {
    log.debug("REST request to get a page of Invoices");
    Page<Invoice> result = invoiceRepository.findAllByTransactionDate(dt,pageable);
    HttpHeaders headers = PaginationUtil.generatePaginationHttpHeaders(result, "/api/invoices");
    return new ResponseEntity<>(result.getContent(), headers, HttpStatus.OK);
}

明显的区别是在RequestParam中添加了@datetimeformat(iso=iso.date_time)。现在我在想；我如何让它与QueryDSLPredicateBuilder一起工作呢？我应该以某种方式键入格式吗？

Answer 1

在寻找使用querydsl参数绑定的不同方面（使用>x>类比较）时，我遇到了以下帖子：Spring Data REST的querydsl集成是否可以用于执行更复杂的查询？

其中一个答复暗示如下：

确保您将@DateTimeFormat注释添加到User的dateOfBirth-property中，以便Spring能够将传入的字符串正确地转换为LocalDate实例。

@DateTimeFormat(iso = ISO.DATE_TIME) 
@Column(name = "transaction_date")
private ZonedDateTime transactionDate;