春季和序列化json-如何在没有春季靴子的情况下自定义全球杰克逊

发布于 2025-02-09 05:00:06 字数 671 浏览 3 评论 0原文

我使用的是无弹簧靴的干净弹簧MVC框架（v5.3.21）。我正在与GSON Library合作，该图书馆被Spring用来序列化视图模型，并使用请求方法返回。

 public class Coffee {
    String name = "n";
    String brand = "b";
 }
    
 @RequestMapping(value={"/coffe"}, method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
 public Coffee getCoffee() {
    return new Coffee();
 }

最近，我在类路径上添加了Jackson（V 2.13.3），并且我注意到序列化的作用差异很大。首先 - 在默认情况下序列化的GSON非私有字段中，现在它们在客户端不可见。我知道我可以将注释添加

@JsonAutoDetect(fieldVisibility = Visibility.NON_PRIVATE)

到所有模型类中，也可以将字段更改为公众（据我发现，杰克逊的默认可见性是公开的）。但是我只想在整个配置上更改一次，而没有重写许多

我尝试过很多选项的代码，但是没有弹簧启动，它们都无法使用。您知道用干净的弹簧更改此默认设置吗？

原文

I'm using clean Spring MVC framework (v5.3.21) without Spring Boot.
I was working with Gson library, which was used by Spring to serialize view models, returned with request methods.

 public class Coffee {
    String name = "n";
    String brand = "b";
 }
    
 @RequestMapping(value={"/coffe"}, method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
 public Coffee getCoffee() {
    return new Coffee();
 }

Recently I added Jackson (v 2.13.3) on the classpath and I've noticed serialization works much different. First of all - in Gson non-private field where serialized by default, now they are not visible at the client side.
I know I can add annotation

@JsonAutoDetect(fieldVisibility = Visibility.NON_PRIVATE)

to all the model classes, or change fields to public (Jackson default visibility for fields is PUBLIC, as far as I found out).
But I would like to change just once, globally, in configuration, without rewriting code of many

I tried many options, but none of them doesn't work without Spring Boot.
Do you know to change this default setting with clean Spring?

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于我来说 2025-02-16 05:00:06

您可以创建ObjectMapper BEAN，可以是应用程序的全局

public ObjectMapper objectMapper() {

    ObjectMapper mapper  = new ObjectMapper();
    mapper.setVisibility(mapper.getSerializationConfig().getDefaultVisibilityChecker()
            .withFieldVisibility(JsonAutoDetect.Visibility.NON_PRIVATE));

    return mapper;
 }

You can create ObjectMapper bean which can be global for application

public ObjectMapper objectMapper() {

    ObjectMapper mapper  = new ObjectMapper();
    mapper.setVisibility(mapper.getSerializationConfig().getDefaultVisibilityChecker()
            .withFieldVisibility(JsonAutoDetect.Visibility.NON_PRIVATE));

    return mapper;
 }

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