@JsonIgnoreProperties(ignoreUnknown = true)

This is a Java annotation used to indicate that any properties not explicitly mapped in a class should be ignored during serialization and deserialization. When this annotation is added to a class, Jackson (a popular Java JSON library) will not throw an exception if it encounters an unknown property while parsing JSON data into an instance of that class. Instead, it will simply ignore the unknown property and continue with the rest of the parsing process. This annotation is useful when working with JSON data that may contain extra properties that are not relevant to the application.

相关问题

@jsonignoreproperties(ignoreunknown = true)

@jsonignoreproperties(ignoreunknown = true) 是一种 Java 注解，它用于在使用 Jackson 库将 Java 对象序列化为 JSON 时忽略未知属性。当将 JSON 反序列化为 Java 对象时，如果遇到未知属性，则会忽略该属性而不会引发错误。

@JsonIgnoreProperties(ignoreUnknown = true)的用途

@JsonIgnoreProperties(ignoreUnknown = true)是一个注解，它的作用是在反序列化JSON字符串为Java对象时，忽略JSON字符串中存在但Java对象中不存在的属性。这个注解可以放在Java类上，表示对整个类中的所有属性都生效，也可以放在属性上，表示只对该属性生效。这个注解的作用是防止因为JSON字符串中存在Java对象中不存在的属性而导致的反序列化失败。