Question

我正在尝试在Spring Boot中验证请求正文。当发布控制器使用下面的JSON在DB中创建记录时。很好。

{
  "test1": "string",
  "test2": "string",
  "test3": "string",  <--this has @Null in the entity
  "test4": "string"
}

但是，当实体中的键之一为@NULL时，它将仍然能够在数据库中创建记录。我想知道是否有什么可以验证密钥并返回错误。

{
  "test1": "string",
  "test2": "string",
  "test5": "string", <- wrong key by mistake
  "test4": "string"
}

实体类

@Entity
@Table(name = "test")
@Data
@NoArgsConstructor
public class Test implements Serializable {

@Id
@Column(name = "test1")
private String test1;

@Column(name = "test2")
@NotNull
private String test2;

@Column(name = "test3")
private String test3;

@Column(name = "test4")
private String test4;
}

Answer 1

您可以使用Jackson来解析JSON并处理未知属性。如果发现here

中所述的未知属性，它将自动引发UnrecognizedPropertyException。

Answer 2

If u want to Validate request body in JSON u can use @Valid

      @PostMapping("/books")
    Book newBook(@Valid @RequestBody Test test) {
        return repository.save(Test);
    }

@Column(name = "test3")
@NotNull(message = "Please provide a test3")
private String test3;

if u want on key order
 JsonPropertyOrder({ "test1", "test2", "test3", "test4" })
public class Test implements Serializable {
}

春季启动-验证请求正文json键

2 个答案: