Java Spring控制器:对象=';的验证失败;发票数据';。错误计数:4
我有两个对象,Java Spring控制器:对象=';的验证失败;发票数据';。错误计数:4,java,spring,spring-boot,validation,thymeleaf,Java,Spring,Spring Boot,Validation,Thymeleaf,我有两个对象,Contractor,带有一个字段ContractorData,而ContractorData有一个类型为Invoice的对象列表: Contractor id email ContractorData ContractorData id FistName LastName ... List<InvoiceData> 这里一切都很好 但是,我有一个控制器,它指向一个页面,在该页面上可以添加一个Invoi
Contractor
,带有一个字段ContractorData
,而ContractorData
有一个类型为Invoice
的对象列表:
Contractor
id
email
ContractorData
ContractorData
id
FistName
LastName
...
List<InvoiceData>
这里一切都很好
但是,我有一个控制器,它指向一个页面,在该页面上可以添加一个InvoiceData
:
@RequestMapping(value = "/add/{id}")
public String addPage(@PathVariable("id") String id, Model model) {
InvoiceData invoiceData = new InvoiceData();
model.addAttribute("contractorid", id);
model.addAttribute("invoicedata", invoiceData);
return "add";
}
以及用于添加发票的控制器:
@RequestMapping(value = "/addinvoice/{id}", method = RequestMethod.POST, produces = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
public String addInvoice(@PathVariable("id") String id, InvoiceData data, Model model) {
Contractor contractor = contractorRepository.findById(id).get();
contractor.getInvoices().add(data);
contractorRepository.save(contractor);
model.addAttribute("contractor", contractor);
return "index";
}
在HTML表单端,index.HTML的表单如下所示:
<form action="#" th:action="@{/contractor/update/{id}(id=${contractor.id})}" th:object="${contractor}" method="post">
<ul class="form-style-1">
<li>
<label>First Name<span class="required">*</span></label>
<input type="text" th:field="*{contractorData.firstName}" id="firstName" th:value="${contractor.contractorData?.firstName}">
</li>
<li>
<label>Last Name<span class="required">*</span></label>
<input type="text" th:field="*{contractorData.lastName}" id="lastName" th:value="${contractor.contractorData?.lastName}">
</li>
... and more
<li>
<input type="submit" value="Submit" />
</li>
</ul>
</form>
问题在于保存InvoiceData
。当我填写表格并单击提交时,我收到一个错误:
Field error in object 'invoiceData' on field 'contractDate': rejected value [2019-04-11]; codes [typeMismatch.invoiceData.contractDate,typeMismatch.contractDate,typeMismatch.java.util.Date,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [invoiceData.contractDate,contractDate]; arguments []; default message [contractDate]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'java.util.Date' for property 'contractDate'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [java.util.Date] for value '2019-04-11'; nested exception is java.lang.IllegalArgumentException]
出现意外错误(类型=错误请求,状态=400)。
对象=“invoiceData”的验证失败。错误计数:4
重要编辑
在控制台输出上,我还得到一个错误:
Field error in object 'invoiceData' on field 'contractDate': rejected value [2019-04-11]; codes [typeMismatch.invoiceData.contractDate,typeMismatch.contractDate,typeMismatch.java.util.Date,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [invoiceData.contractDate,contractDate]; arguments []; default message [contractDate]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'java.util.Date' for property 'contractDate'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [java.util.Date] for value '2019-04-11'; nested exception is java.lang.IllegalArgumentException]
但是正如我之前所说的,一切都可以通过
ContractorData
updateform…这里的问题是java.date。
因为在html中,日期的格式为“yyyy-MM-dd”。您将得到错误,因为
spring无法将此日期转换为java.date
你可能会这样宣布接受日期
Date receptionDate;
现在,换成
@DateTimeFormat(pattern = "yyyy-MM-dd")
Date receptionDate;
Date receptionDate;
@DateTimeFormat(pattern = "yyyy-MM-dd")
Date receptionDate;