杰克逊克服下划线支持驼峰式 [英] Jackson overcoming underscores in favor of camel-case

问题描述

我从互联网上检索了一个 JSON 字符串；像我见过的大多数 JSON 一样，它包含由下划线分隔的长键.本质上，我的目标是将 JSON 反序列化为 java 对象，但我不在 java 代码中使用下划线.

I retrieve a JSON string from internet; like most JSON I've seen it includes long keys that are separated by underscores. Essentially, my goal is to deserialize JSON into java-objects, but I don't use underscores in java-code.

例如，我可能有一个带有 firstName 字段的 User 类在驼峰式大小写中，同时我需要以某种方式告诉 Jackson 映射 first_name 从 JSON 到 firstName 类字段的键.可能吗?

For instance, I might have a User class with firstName field in camel-case, simultaneously I need somehow to tell Jackson to map first_name key from JSON to firstName class field. Is it possible?

class User{
    protected String firstName;
    protected String getFirstName(){return firstName;}
}

推荐答案

您应该在要更改默认名称映射的字段上使用 @JsonProperty.

You should use the @JsonProperty on the field you want to change the default name mapping.

class User{
    @JsonProperty("first_name")
    protected String firstName;
    protected String getFirstName(){return firstName;}
}

更多信息:API

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