Java 如何根据数据库配置动态返回 DTO - V2EX
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cnit
V2EX    Java

Java 如何根据数据库配置动态返回 DTO

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  •   cnit Jan 27, 2022 3447 views
    This topic created in 1553 days ago, the information mentioned may be changed or developed.

    需求是在前端配置好字段映射或者序列化字后,不同的调用者返回的字段 key 是不样的,或者不序列化该字段。 就跟动态 JSONField 注解一样,我也找到了一篇动态注解的东西,可以加上但是注解加上之后删不掉改不了。

    后面我的实现方式是通过 Fastjson 的 NameFilter 跟 PropertyPreFilter 来实现的,但是这个需要 toJSONString(), 然后再 parseObject(). 感觉有点不太优雅,有没有做过类似需求分享一下实现思路?

    给大家先拜个早年了

     public class MyModel { private String name; // request A : name1 request B :name2 private MyAddress address; private List<MyAddress> items; } 
    7 replies    2022-01-28 22:48:03 +08:00
    lslvxy
        1
    lslvxy  
       Jan 27, 2022
    GraphQL
    shanch
        2
    shanch  
       Jan 27, 2022
    动态搭理
    chihiro2014
        3
    chihiro2014  
       Jan 27, 2022
    JPA 有个东西,叫做 projection ,根据需要取字段
    nekoneko
        4
    nekoneko  
       Jan 27, 2022
    都 toJSONString 了干嘛要再 parseObject,直接返字符串呀
    6IbA2bj5ip3tK49j
        5
    6IbA2bj5ip3tK49j  
       Jan 28, 2022
    Jackson 也有自己的 filter
    slomo
        6
    slomo  
       Jan 28, 2022
    动态代理脱敏
    yidinghe
        7
    yidinghe  
       Jan 28, 2022
    让调用者来告诉你具体如何返回,比如请求里面带一个属性 {fields: {realName:"name", returnName:"name1"}} ,这样你就知道要取 name 字段,并且用 name1 的名字返回给调用者
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