用于反序列化嵌套 JSON 的 GSON 代码

Question

嗨，我的 json 是这样的，我使用 gson 转换为 Java，我创建了一个包含所有属性的顶级类和另一个具有列表的类。但是，即使数组大小正确，这些值也会打印为 null。我做错了什么？

---

Gson json = new Gson();
ProductListResponse [] response = json.fromJson(str, ProductListResponse[].class);

---

public class ProductList {
    public String code;
    public String name;
    public String description;
    public Date lastUpdateDate;
    public String lastUpdatedBy;        
}
------------------------------------------------------------------------------------
public class ProductListResponse {
    public ProductList plist;   
}
-------------------------------------------------------------------------------------------
[
    {
        "product": {
            "code": "RA",
            "name": "Read About",
            "description": "Read About"
        }
    },
    {
        "product": {
            "code": "READ180",
            "name": "Read180",
            "description": "Read180"
        }
    },
    {
        "product": {
            "code": "RLIB",
            "name": "Read180 Library Catalog",
            "description": "Read180 Library Catalog",
            "last_udapte_date": "2010-12-07 00:00:00.0",
            "last_updated_by": "fdixon00"
        }
    },
    {
        "product": {
            "code": "EREADS",
            "name": "Read180 eReads",
            "description": "Read180 eReads"
        }
    },
    {
        "product": {
            "code": "RSKILL",
            "name": "Read180 rSkills",
            "description": "Read180 rSkills",
            "last_udapte_date": "2010-09-20 00:00:00.0",
            "last_updated_by": "fdixon00"
        }
    },
    {
        "product": {
            "code": "POOL",
            "name": "Reference Asset Pool",
            "description": "Reference Asset Pool"
        }
    },
    {
        "product": {
            "code": "SU",
            "name": "Scholastic U",
            "description": "Scholastic U"
        }
    },
    {
        "product": {
            "code": "TR8TS",
            "name": "Six Traits of Writing",
            "description": "Six Traits of Writing"
        }
    },
    {
        "product": {
            "code": "TFX",
            "name": "TrueFlix",
            "description": "TrueFlix",
            "last_udapte_date": "2012-08-20 10:47:46.0",
            "last_updated_by": "wbyler00"
        }
    }
]

Answer 1

这只是

一个命名混乱：ProductListResponse将plist重命名为product，它将立即起作用。