Question

我将在Roo中为日期字段构建一个查找程序，但在运行应用程序并使用查找程序时，我会获得BindExceptions。

实施例

我改变了诊所的例子

为宠物添加野外生日

field date --fieldName birthDay --type java.util.Date --notNull --dateTimeFormatPattern "dd.MM.yyyy"

为宠物添加实体投影

entity projection --class ~.domain.PetInfo --entity ~.domain.Pet --fields id,name,type,birthDay,owner --entityFormatExpression "#{name} (#{type}) - #{owner.lastName} #{owner.lastName} "
repository jpa --entity ~.domain.Pet --interface ~.repository.PetRepository --defaultReturnType ~.domain.PetInfo

删除宠物的发现者

添加formbean并找到宠物生日

dto --class ~.domain.PetBirthdayFormBean
field date --fieldName birthDay --type java.util.Date --dateTimeFormatPattern "dd.MM.yyyy"
find add --entity ~.domain.Pet --name findByBirthDay --formBean ~.domain.PetBirthdayFormBean --returnType ~.domain.PetInfo

并添加我用formbean删除的一个查找器

dto --class ~.domain.PetTypeAndNameLikeFormBean
field string --fieldName name
field enum --fieldName type --type ~.domain.reference.PetType
finder add --entity ~.domain.Pet --name findByTypeAndNameLike --formBean ~.domain.PetTypeAndNameLikeFormBean --returnType ~.domain.PetInfo

当我开始申请时，我得到例外

2017-05-11 09:30:45.618  WARN 9476 --- [nio-8092-exec-6] .w.s.m.s.DefaultHandlerExceptionResolver :
Resolved exception caused by Handler execution: org.springframework.validation.BindException: org.sp
ringframework.validation.BeanPropertyBindingResult: 1 errors
Field error in object 'formBean' on field 'birthDay': rejected value [Thu May 11 00:00:00 CEST 2006]
; codes [typeMismatch.formBean.birthDay,typeMismatch.birthDay,typeMismatch.java.util.Date,typeMismat
ch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [formBean.
birthDay,birthDay]; arguments []; default message [birthDay]]; default message [Failed to convert pr
operty value of type [java.lang.String] to required type [java.util.Date] for property 'birthDay'; n
ested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert fro
m type [java.lang.String] to type [@org.springframework.format.annotation.DateTimeFormat java.util.D
ate] for value 'Thu May 11 00:00:00 CEST 2006'; nested exception is java.lang.IllegalArgumentExcepti
on: Invalid format: "Thu May 11 00:00:00 CEST 2006"]

我使用另一个查找器查看列表生日而不是日期是一系列数字。列出所有宠物的生日显示为日期。

查看图片

因为您认为这不是答案，但我找到了一个问题的解决方案并回答了问题

为什么我不能回答我自己的问题???? `

现在我发布的问题答案不干净我认为

要查找的Datefield不起作用我还没解决。

但是查找视图中的Datefields和其他Objectfield（不是字符串和简单类型）的问题我找到了问题和解决方案。与https://jira.spring.io/browse/ROO-3907相同的问题。

正常的控制器示例PetsCollectionThymeleafController方法数据表：

@GetMapping(produces = Datatables.MEDIA_TYPE, name = "datatables", value = "/dt")
@ResponseBody
public ResponseEntity<ConvertedDatatablesData<Pet>> datatables(DatatablesColumns datatablesColumns, GlobalSearch search, 
    DatatablesPageable pageable, @RequestParam("draw") Integer draw) {
    Page<Pet> pets = getPetService().findAll(search, pageable);
    long totalPetsCount = pets.getTotalElements();
    if (search != null && StringUtils.isNotBlank(search.getText())) {
        totalPetsCount = getPetService().count();
    }
    ConvertedDatatablesData<Pet> datatablesData = new ConvertedDatatablesData<Pet>(pets, totalPetsCount, draw,            
        getConversionService(), datatablesColumns);
    return ResponseEntity.ok(datatablesData);
}

searchController示例PetsSearchThymeleafController方法byNameAndWeightDt：

@GetMapping(name = "byNameAndWeightDt", value = "/byNameAndWeight/dt", produces = Datatables.MEDIA_TYPE)
@ResponseBody
public ResponseEntity<DatatablesData<PetInfo>> byNameAndWeightDt(@ModelAttribute("formBean") PetNameAndWeightFormBean 
    formBean, GlobalSearch search, DatatablesPageable pageable, @RequestParam(Datatables.PARAMETER_DRAW) Integer draw) {

    Page<PetInfo> pets = getPetService().findByNameAndWeight(formBean,search,pageable);
    long totalPetsCount = pets.getTotalElements();
    if (search != null && StringUtils.isNotBlank(search.getText())) {
        totalPetsCount = getPetService().countByNameAndWeight(formBean);
    }
    DatatablesData<PetInfo> datatablesData = new DatatablesData<PetInfo>(pets, totalPetsCount, draw);
    return ResponseEntity.ok(datatablesData);
}

在Method datatables中，返回Type为responseEntity＆gt;并将使用ConvertedDatatablesData设置datatablesData = new ConvertedDatatablesData（pets，totalPetsCount，draw，
getConversionService（），datatablesColumns）;

PetsCollectionThymeleafController类具有attribut conversionService和getter以及setter方法。在construktor中，将设置此字段。

private ConversionService conversionService;
...
@Autowired
public PetsCollectionThymeleafController(PetService petService, ConversionService conversionService, MessageSource 
    messageSource, ControllerMethodLinkBuilderFactory linkBuilder) {
    setPetService(petService);
    setConversionService(conversionService);
    setMessageSource(messageSource);
    setItemLink(linkBuilder.of(PetsItemThymeleafController.class));
}
...
public ConversionService getConversionService() {
    return conversionService;
}
public void setConversionService(ConversionService conversionService) {
    this.conversionService = conversionService;
}
...

ConversionService转换表格中的元素。

但SearchControllern中的Methods不使用ConversionService，因此像Owner这样的Object将在List中显示为[object Object]，Dates将显示为1500501600000。

将ConversionService添加到SearchContoller并在Constructor中设置。通过..dt更改returntype方法并设置新参数DatatablesPageable pageable。在FactoryClass中，by..dt将在调用中调用set new null参数。设置返回元素

  ConvertedDatatablesData<Pet> datatablesData = new ConvertedDatatablesData<Pet>(pets, totalPetsCount, draw,            
        getConversionService(), datatablesColumns);

更改PetsSearchThymeleafController：

...
private ConversionService conversionService;
...
@Autowired
public PetsSearchThymeleafController(PetService petService, ConversionService conversionService, MessageSource 
    messageSource) {
    setPetService(petService);
    setMessageSource(messageSource);
    setConversionService(conversionService);
}
...
public ConversionService getConversionService() {
    return conversionService;
}
public void setConversionService(ConversionService conversionService) {
    this.conversionService = conversionService;
}
...
@GetMapping(name = "byNameAndWeightDt", value = "/byNameAndWeight/dt", produces = Datatables.MEDIA_TYPE)
@ResponseBody
public ResponseEntity<ConvertedDatatablesData<PetInfo>> byNameAndWeightDt(DatatablesColumns datatablesColumns,
    @ModelAttribute("formBean") PetNameAndWeightFormBean formBean, GlobalSearch search, DatatablesPageable 
    pageable, @RequestParam(Datatables.PARAMETER_DRAW) Integer draw) {

    Page<PetInfo> pets = getPetService().findByNameAndWeight(formBean,search,pageable);
    long totalPetsCount = pets.getTotalElements();
    if (search != null && StringUtils.isNotBlank(search.getText())) {
        totalPetsCount = getPetService().countByNameAndWeight(formBean);
    }
    ConvertedDatatablesData<PetInfo> datatablesData = new ConvertedDatatablesData<PetInfo>(pets, totalPetsCount, draw, 
        getConversionService(), datatablesColumns);
    return ResponseEntity.ok(datatablesData);
}
...

更改前

：

改变之后

：

Answer 1

你的问题让我记得以下一个：

https://jira.spring.io/browse/ROO-3887

我们已经解决了RC1版本的问题。但是，在分析了您的问题之后，您似乎遇到了与此问题出现在finder结果表中的已注册问题相同的问题：

https://jira.spring.io/browse/ROO-3898

目前，还没有自动解决方案，但您可以手动解决！编辑包含查找结果表的list.html，并添加额外的{以将格式应用于日期字段。

请参阅：

data-th-field="${{birthDay}}"

希望它有所帮助，

Spring Roo 2.0.0.RC1 - 查找器视图中显示的日期查找器不起作用且对象不正确

1 个答案: