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在fastjson在1.2.21版本中提供了一个借鉴自gson的特性，支持反序列化时使用多个不同的字段名称，使用的方式是配置JSONField的alternateNames。
public static class Model { public int id; @JSONField(alternateNames = {"user", "person"}) public String name; } String jsonVal0 = "{\"id\":5001,\"name\":\"Jobs\"}"; String jsonVal1 = "{\"id\":5382,\"user\":\"Mary\"}"; String jsonVal2 = "{\"id\":2341,\"person\":\"Bob\"}"; Model obj0 = JSON.parseObject(jsonVal0, Model.class); assertEquals(5001, obj0.id); assertEquals("Jobs", obj0.name); Model obj1 = JSON.parseObject(jsonVal1, Model.class); assertEquals(5382, obj1.id); assertEquals("Mary", obj1.name); Model obj2 = JSON.parseObject(jsonVal2, Model.class); assertEquals(2341, obj2.id); assertEquals("Bob", obj2.name);