Jrs-303 usage

Data verification is used in the project , I searched the Internet for some information , Tidy up It's convenient for you to check
JRS-303 It is for data verification
Import dependence

<!--JSR-303 Data verification starts -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-validation</artifactId>
		</dependency>
		<!--JSR-303 End of data verification -->

First, add @Validated annotation Here's the picture

@Validated
public class Collect implements Serializable {
    
    private static final long serialVersionUID = 851224694046130732L;

The following are commonly used comments , Just mark above the field

 Empty check  
@Null  Verify that the object is null 
@NotNull  Verify that the object is not null,  Can't check length is 0 String  
@NotBlank  Check if the constraint string is Null And the Trim Is the length greater than 0, For strings only , And the space before and after will be removed . 
@NotEmpty  Check if the constraint element is NULL Or is it EMPTY.

Booelan Check  
@AssertTrue  verification  Boolean  Whether the object is  true 
@AssertFalse  verification  Boolean  Whether the object is  false

 Length check  
@Size(min=, max=)  Verify the object （Array,Collection,Map,String） Is the length within the given range  
@Length(min=, max=) Validates that the annotated string is between min and max included.

 Date check  
@Past  verification  Date  and  Calendar  Whether the object is before the current time , If the verification is valid, the annotated element must be a past date  
@Future  verification  Date  and  Calendar  Whether the object is after the current time  , If the validation is established, the annotated element must be a future date  
@Pattern  verification  String  Whether the object conforms to the rules of regular expression , The annotated element conforms to the formulated regular expression ,regexp: Regular expressions  flags:  Appoint  Pattern.Flag  Array of , Represents options related to regular expressions .

 Numerical check 
@Min  verification  Number  and  String  Whether the object is large equal to the specified value  
@Max  verification  Number  and  String  Whether the object is small equal to the specified value  
@DecimalMax  The value to be annotated must not be greater than the maximum value specified in the constraint .  The parameter of this constraint is a pass through BigDecimal String representation of the defined maximum value . Decimals have precision  
@DecimalMin  The labeled value must be no less than the minimum value specified in the constraint .  The parameter of this constraint is a pass through BigDecimal The string representation of the minimum value defined . Decimals have precision  
@Digits  verification  Number  and  String  Whether the constitution of is legal  
@Digits(integer=,fraction=)  Verify that the string is a number in the specified format ,interger Specify integer precision ,fraction Specify decimal precision . 
@Range(min=, max=)  The specified element must be in the appropriate range  
@Range(min=10000,max=50000,message=”range.bean.wage”) 
@Email  Verify that it's an email address , If null, No validation , Calculation passed verification .