尝试DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY-它应该为你工作。
例：
final String json = "{\"date\" : \"2013-05-11\",\"value\" : 123}";
final ObjectMapper mapper = new ObjectMapper()
.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
final List<Point> points = mapper.readValue(json,
new TypeReference<List<Point>>() {});
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