Jackson反序列化泛型List(使用JavaType将json字符串转换成泛型List)

第一种方法第二种方法

ObjectMapper mapper = new ObjectMapper();
// 排除json字符串中实体类没有的字段    　　
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,false);
String json = "[{"name":"a","age":"345"},{"name":"b","age":"123"}]";
List list = mapper.readValue(json, new TypeReference>(){});

JavaType javaType = mapper.getTypeFactory().constructCollectionType(List.class, Persion.class);
List list2 = mapper.readValue(json, javaType);