用於反序列化嵌套JSON的GSON代碼

Question

嗨，我的json是這樣的，我用gson轉換爲Java，我創建了具有所有屬性的頂級類和具有列表的另一個類。但是，即使數組大小正確，值也會打印爲空。我究竟做錯了什麼？

---

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

這只是一個命名混亂：在ProductListResponse重命名plist到product，它會工作的一次。