Java BigDecimal 的 JPA @Size 注释
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JPA @Size annotation for BigDecimal
提问by ThreaT
How do I use the @Sizeannotation for MySQL DECIMAL(x,y)columns?
如何使用@SizeMySQLDECIMAL(x,y)列的注释？
I'm using BigDecimal, but when I try to include the @Sizemaxit doesn't work. Here is my code:
我正在使用BigDecimal，但是当我尝试包含@Sizemax它时它不起作用。这是我的代码：
@Size(max = 7,2)
@Column(name = "weight")
private BigDecimal weight;
采纳答案by mavroprovato
回答by zmf
@Column(columnDefinition = "DECIMAL(7,2)")
If you're asking how you should validate, you should use the @Min and @Max annotations or the @DecimalMin and @DecimalMax annotations.
如果你问你应该如何验证，你应该使用@Min 和@Max 批注或@DecimalMin 和@DecimalMax 批注。
@Size is an annotation used to validate a property, not to define its column. @Size is typically used to assure that a string or a collection is of a certain size.
@Size 是用于验证属性的注释，而不是用于定义其列。@Size 通常用于确保字符串或集合具有特定大小。
回答by borjab
See this answer
看到这个答案
@Column(nullable= false, precision=7, scale=2) // Creates the database field with this size.
@Digits(integer=9, fraction=2) // Validates data when used as a form
private BigDecimal myField;
