在 Spring Boot 中使用 JsonFactory.Feature 设置配置 Jackson ObjectMap

Question

我知道如何按照 https://docs.spring.io/spring-boot/docs/current/reference/html/howto-spring-mvc.html#howto-customize-the-jackson-objectmapper 通过应用程序属性在 Spring Boot 中配置杰克逊ObjectMapper。

我如何以这种方式控制杰克逊JsonFactory.Feature？

在 Spring 4.3.14 中，Jackson2ObjectMapperBuilder通过其默认构造函数实例化ObjectMapper，即不传递JsonFactory。此行为后来显然已更改/修复：https://github.com/spring-projects/spring-framework/blob/master/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java#L621

Answer 1

@Bean
public ObjectMapper tolerantObjectMapper() {
    log.info("Creating Object mapper");
    final JsonFactory jsonFactory = new JsonFactory();
    jsonFactory.enable(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES);
    ObjectMapper objectMapper = new ObjectMapper(jsonFactory);
    return objectMapper;
}