如何指定jackon只使用字段-最好是全局使用

您可以像这样配置各个ObjectMappers：

ObjectMapper mapper  = new ObjectMapper();mapper.setVisibility(mapper.getSerializationConfig().getDefaultVisibilityChecker()     .withFieldVisibility(JsonAutoDetect.Visibility.ANY)     .withGetterVisibility(JsonAutoDetect.Visibility.NONE)     .withSetterVisibility(JsonAutoDetect.Visibility.NONE)     .withCreatorVisibility(JsonAutoDetect.Visibility.NONE));

如果要全局设置它，我通常通过包装器类访问已配置的映射器。