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我想验证地址列表及其所有属性 city, state , pincode 我已经在 Address 类中进行了所有 spring 验证，但它仍然没有验证。

地址类

@Entity
@Table(name = "ADDRESS")

public class Address {


@Id
@GeneratedValue
@Column(name = "ADDR_ID")
private Long addr_id;

@NotNull(message="city should not be null")
@Column(name = "CITY")
private String city;

@NotNull(message="state should not be null")
@Column(name = "STATE")
private String state;

@NotNull(message="pincode should not be null")
@Column(name = "PINCODE")
private Integer pincode;


@ManyToOne(cascade=CascadeType.ALL)
@JoinColumn(name = "FK_EMP_ID", referencedColumnName="ID")
@JsonBackReference
@Valid
@NotNull
private Employee emp;

//getter & setter omitted for breveity

员工类

@Entity
@Table(name = "EMPLOYEE")
public class Employee {

@Id
@GeneratedValue
@Column(name = "ID")
private Long id;

@NotNull(message="name should not be null")
@Size(min=1,  max=15 ,message="Name should be min 1 and max 15")
@Column(name = "EMPLOYEE_NAME")
private String name;

@NotNull(message="salary should not be null")
@Column(name = "EMPLOYEE_SALARY")
private Integer salary;

@NotNull(message="department should not be null")
@Column(name = "DEPARTMENT")
private String department;

@OneToMany(mappedBy="emp", cascade={CascadeType.ALL}, 
orphanRemoval=true,fetch=FetchType.LAZY)
@JsonManagedReference
@NotNull(message="address should contain atleast 1 address")
private List<Address> address = new ArrayList<Address>();

//getter & setter omitted for breveity

邮递员 Json

{
"name": "aakash",
"salary": 546,
"department": "IT",
"age":32,
"email":"agag@gma",
"address":[
     {
        "city":"Mumbai"
     }
    ]

}

当我传递地址列表及其一些属性时，它显示以下错误。

javax.validation.ConstraintViolationException: Validation failed for classes 
[com.example.springDataJPA.model.Address] during persist time for groups 
[javax.validation.groups.Default, ]
List of constraint violations:[
ConstraintViolationImpl{interpolatedMessage='pincode should not be null', 
propertyPath=pincode, rootBeanClass=class 
com.example.springDataJPA.model.Address, messageTemplate='pincode should not 
be null'}
ConstraintViolationImpl{interpolatedMessage='state should not be null', 
propertyPath=state, rootBeanClass=class 
com.example.springDataJPA.model.Address, messageTemplate='state should not 
be null'}

我想验证具有所有属性的地址列表，并且应该并且它应该以 json 格式返回正确的默认消息。

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1 回答 1

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@NotNull 仅在列表不为空时检查。尝试改用@NotEmpty。

（关于差异的好文章：https ://www.baeldung.com/java-bean-validation-not-null-empty-blank ）

于 2019-02-20T08:22:27.240 回答