@NotNull 和@size Spring 验证不起作用
[英]@NotNull and @size Spring Validation doesn't work
问题描述
Problem was solved: The problem is Hibernate Validator 7, which is a JakartaEE implementation and not a JavaEE implementation of the validation API. Use Hibernate Validator 6 which is compatible with Spring 5. For JakartaEE you need Spring 6 which is still in development at this moment.
问题已解决：问题是 Hibernate Validator 7，它是 JakartaEE 实现，而不是验证 API 的 JavaEE 实现。使用 Hibernate Validator 6，它与 Spring 5 兼容。对于 JakartaEE，您需要 Spring 仍在开发中 6片刻。 – M. Deinum – M. Deinum
So am doing spring and hibernate course and got to @NotNull and @size chapter.所以我正在学习 spring 和 hibernate 课程并学习了@NotNull 和@size 章节。 I implemented hibernate jar files 1,2,3 4,5,6,7 and I don't get any errors in code, but @NotNull and @Size does not work, There is another post about this problem and I saw no solution there so I had to make new post.我实现了 hibernate jar files 1,2,3 4,5,6,7我没有在代码中遇到任何错误，但是 @NotNull 和 @Size 不起作用，还有另一篇关于这个问题的帖子，我没有找到解决方案在那里，所以我不得不发表新文章。
Hibernate validator I implement is hibernate-validator-7.0.3.Final and spring am using is spring-framework-5.3.9我实现的 Hibernate 验证器是 hibernate-validator-7.0.3.Final 和 spring 我使用的是 spring-framework-5.3.9
package com.luv2code.springdemo.mvc;
import jakarta.validation.constraints.NotNull;
import jakarta.validation.constraints.Size;
public class Customer {
private String firstName;
@Size(min = 1, message ="is required")
@NotNull( message ="is required")
private String lastName;
public Customer() {
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}
/ /
<%@ taglib prefix= "form" uri="http://www.springframework.org/tags/form" %>
<html>
<head>
<title> Customer registration form</title>
<style>
.error{color:red}
</style>
</head>
<body>
<form:form action ="processForm" modelAttribute = "customer">
First name: <form:input path="firstName" />
<br><br>
Last name: <form:input path="lastName"/>
<form:errors path= "lastName" cssClass = "error"/>
<br><br>
<input type= "submit" value ="Submit" />
</form:form>
</body>
</html>
/ /
package com.luv2code.springdemo.mvc;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import jakarta.validation.Valid;
@Controller
@RequestMapping("/customer")
public class CustomerController {
@RequestMapping("/showForm")
public String showForm(Model theModel) {
theModel.addAttribute("customer", new Customer());
return "customer-form";
}
@RequestMapping("/processForm")
public String processForm(@Valid @ModelAttribute("customer") Customer theCustomer,
BindingResult theBindingResult) {
if(theBindingResult.hasErrors()) {
return "customer-form";
} else {
return "customer-confirmation";
}
}
}
2 个解决方案
解决方案1
-2 2022-03-04 21:11:47
try to use @NotNull @NotBlank @Size in this sequence尝试在此序列中使用@NotNull @NotBlank @Size
If you want spaces as valid string then use @NotEmpty如果您希望空格作为有效字符串，请使用 @NotEmpty
解决方案2
-2 2022-03-06 14:09:19
I had similar issue.我有类似的问题。
Replacing:更换：
@jakarta.validation.constraints.NotNull
with和
@org.hibernate.validator.constraints.NotBlank
and和
@jakarta.validation.constraints.Size
with和
@org.hibernate.validator.constraints.Length
helped me帮助过我
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