禁用杰克逊映射为特定的注释 [英] Disable Jackson mapper for a particular annotation

问题描述

随着杰克逊，可以很容易地禁用所有注释对于给定的 ObjectMapper 。
有没有办法只禁用一个给定的注释？

With Jackson, it's easy to disable all annotations for a given ObjectMapper. Is there a way to only disable one given annotation?

// disable all
ObjectMapper mapper = new ObjectMapper()
mapper.disable(MapperFeature.USE_ANNOTATIONS);

// disable one?
ObjectMapper mapper = new ObjectMapper()
mapper.disable(@JsonIgnore);

使用 @JacksonAnnotationsInside ，我已经定义了一个自定义的注释杰克逊，我只希望它在某些情况下被使用。

Using @JacksonAnnotationsInside, I've defined a custom Jackson annotation and I only want it to be used in certain circumstances.

推荐答案

我认为这是一个更好的主意来覆盖 findPropertiesToIgnore 的方法是这样的：

I think it's a better idea to override findPropertiesToIgnore method like this:

    JacksonAnnotationIntrospector ignoreJsonTypeInfoIntrospector = new JacksonAnnotationIntrospector() {
        @Override
        public String[] findPropertiesToIgnore(AnnotatedClass ac) {
            ArrayList<String> ret = new ArrayList<String>();
            for (Method m : ac.getRawType().getMethods()) {
                if(ReflectionUtils.isGetter(m)){
                    if(m.getAnnotation(Transient.class) != null)
                        ret.add(ReflectionUtils.getPropertyName(m));

                }
            };
            return ret.toArray(new String[]{});
        }
    };
    objectMapper = new ObjectMapper();
    objectMapper.setAnnotationIntrospector(ignoreJsonTypeInfoIntrospector);

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