Java 弹簧&x2B;动态生成字段的有效性验证
我正在尝试验证动态生成的输入字段。下面的代码将为我们提供更多输入: 来自HTML的代码:Java 弹簧&x2B;动态生成字段的有效性验证,java,html,spring-boot,validation,thymeleaf,Java,Html,Spring Boot,Validation,Thymeleaf,我正在尝试验证动态生成的输入字段。下面的代码将为我们提供更多输入: 来自HTML的代码: <th:block th:each="word,itera : ${credentialsForm.credentialRequirements}"> <div class="rtr_credential" style="display: inline-block;"> <span th:text="${word.attribute
<th:block th:each="word,itera : ${credentialsForm.credentialRequirements}">
<div class="rtr_credential" style="display: inline-block;">
<span th:text="${word.attribute}" ></span>
<input type="hidden" th:name="|credentialRequirements[${itera.index}].attribute|" th:value="${word.attribute}">
</div>
<div class="rtr_credential" style="display: inline-block;">
<input type="text" name="userValue" th:field="*{credentialRequirements[__${itera.index}__].userValue}" class="userValue" maxlength="30"
th:classappend="${#fields.hasErrors('userValue')}? has-error : ''">
</div>
</th:block>
如何验证userValues,它是动态生成的,有时仅为1个属性,有时为5个属性。我也在尝试Jquery验证,但混淆了如何实现。为什么不简单地使用
th:field
属性将HTML字段绑定到实体字段?然后,您可以添加带有错误消息的div(如果将出现验证错误):
错误消息
谢谢大家的回答和评论。
我需要交付代码,因此使用Jquery和Javascript进行验证:
请查找以下代码:
submitHandler : function(form) {
let invalid = 0
$( ".userValue" ).removeClass( "has-error" )
$( ".userValue" ).each(function() {
if($( this ).val() == "" ) {
invalid++
$( this ).addClass( "has-error" );
}
});
if(invalid == 0){
//some logic
form.submit();
}
}
谢谢你的回答,我试过了,但它不起作用,根据要求,如果存在任何验证错误,我们必须以红色突出显示列,因此附加css类。你可以尝试以下操作:
到底什么不起作用?你有错误吗?或者CSS类追加不起作用?验证不起作用,字段为空,单击“保存”将请求发送到服务器而不进行任何验证。谢谢,我用Jquery和javascript解决了这个问题
public class CredentialRequirements {
private String attribute;
private String carrierDescription;
@NotBlank
@NotNull
private String userValue;
public CredentialRequirements() {
super();
// TODO Auto-generated constructor stub
}
public CredentialRequirements(String attribute, String carrierDescription, String userValue) {
super();
this.attribute = attribute;
this.carrierDescription = carrierDescription;
this.userValue = userValue;
}
public String getAttribute() {
return attribute;
}
public void setAttribute(String attribute) {
this.attribute = attribute;
}
public String getCarrierDescription() {
return carrierDescription;
}
public void setCarrierDescription(String carrierDescription) {
this.carrierDescription = carrierDescription;
}
public String getUserValue() {
return userValue;
}
public void setUserValue(String userValue) {
this.userValue = userValue;
}
@Override
public String toString() {
return "CredentialRequirements [attribute=" + attribute + ", carrierDescription=" + carrierDescription
+ "]";
}
}
<th:block th:each="word,itera : ${credentialsForm.credentialRequirements}">
<div class="rtr_credential" style="display: inline-block;">
<span th:text="${word.attribute}" ></span>
<input type="hidden" th:field="*{credentialRequirements[__${itera.index}__].attribute}">
</div>
<div th:if="${#fields.hasErrors('credentialRequirements[__${itera.index}__].userValue')}" th:errors="*{credentialRequirements[__${itera.index}__].userValue}">
Error message
</div>
<div class="rtr_credential" style="display: inline-block;">
<input type="text" name="userValue" th:field="*{credentialRequirements[__${itera.index}__].userValue}" class="userValue">
</div>
</th:block>
submitHandler : function(form) {
let invalid = 0
$( ".userValue" ).removeClass( "has-error" )
$( ".userValue" ).each(function() {
if($( this ).val() == "" ) {
invalid++
$( this ).addClass( "has-error" );
}
});
if(invalid == 0){
//some logic
form.submit();
}
}