spring thymeleaf 删除验证消息中的引号

Question

我正在使用 Spring Thymeleaf，我在外部 messages.properties 文件中有表单验证消息。

当我这样引用消息时：

th:attr="data-error=#{field.error.required.field}"

如以下输入字段声明：

<input class="form-control input-lg" type="text" th:field="*{firstName}"
       th:attr="data-error=#{field.error.required.field}" required="true"
       data-delay="100" placeholder="First name"/>

浏览器中出现验证信息时，带有引号，如下所示：

"This is a required field"

如何显示不带引号的消息？

这里是一些更多的代码细节。模型对象如下所示：

public class UserSession {

    @Email
    @NotEmpty
    @Size(min = 2, max = 255)
    private String email;
    ...
}

表单输入如下：

<div class="form-group" th:classappend="${#fields.hasErrors('email')} ? has-error">
    <div class="input-group">
        <span class="input-group-addon"><span class="glyphicon glyphicon-user"></span></span>
        <input class="form-control input-lg" type="email" id="email"
               th:field="*{email}" th:attr="data-error=#{field.error.invalid.email}"
               required="true" data-delay="100" placeholder="Email"/>
    </div>
    <div class="help-block with-errors" th:errors="*{email}"></div>
    <div class="help-block with-errors"></div>
</div>

当我删除 data-error 属性并将消息直接绑定到模型对象属性时，我得到的是默认错误，而不是我的消息。

Answer 1

You need to bind @NotBlank/@NotNull with your form class

you can bind directly message = "error.message" // your properties variable

public class UserForm implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    @NotBlank(message = "error.message")
    private String firstName;

    @NotBlank(message = "error.message")
    private String lastName;

    // your other filed with Getters and Setters

    ...........................     
}

您的 HTML 代码：

<form role="form" th:action="@{/signup}" method="post" th:object="${userForm}">
    <div class="row">
        <div class="col-lg-12">
            <th:block th:if="${#fields.hasErrors('${userForm.*}')}">
                <div th:utext="Common error message">Alert</div>
            </th:block>

            <div class="form-group input-group" th:classappend="${#fields.hasErrors('firstName')}? 'has-error'">
                <input type="text" th:field="*{firstName}" class="form-control" placeholder="firstName" />
                <span class="help-block" th:if="${#fields.hasErrors('firstName')}" th:errors="*{firstName}">Incorrect title</span>  
            </div>

            // your other filed with submit button          
        </div>
    </div>
</form>

注：

如果表单验证失败 header 中追加通用消息
根据您在表单 class

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