如何强制Jackson反序列化字段值为小写 [英] How to force Jackson deserialize field values to lower case

问题描述

我有一个Spring应用程序，它公开了REST端点，让我们将其命名为"doAction".作为请求，它消耗对象:

I have spring application which expose REST endpoint, lets name it "doAction". As the request it consumes object:

class Person{
private String name;
private String email;
}

某些客户端可以通过传递数据的不同写法来调用此端点，例如:

Some clients can call this endpoint by passing data with different practice of writing words, like:

Peter_1
name = Peter 
email = [e-mail]  (lower case)

Mark_2
name = mark
email = [e-mail] (upper case)

Julia_3
name = julia
email = [e-mail] (camel case)

是否有某种方法可以将所有收入数据解析为小写(假设所有字段均为字符串)?

因此，我希望拥有:

Peter_1
name = peter 
email = [e-mail]

Mark_2
name = mark
email = [e-mail]

Julia_3
name = julia
email = [e-mail]

杰克逊的解决方案受到赞赏.

Solution for Jackson is appreciated.

推荐答案

简短答案在二传手中呼叫tolower

Short answer Call toLower in the setter

这里是一个例子:

class Animal
{
    private String name;

    public void setName(final String newValue)
    {
        StringUtils.trimToNull(StringUtils.lowerCase(newValue));
    }
}

我还建议 trimToNUll 或 trimToEmpty .

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