GSON 解析 json 数组

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[  
   {  
      "id":"1",
      "cardtype":"",
      "customer":{  
         "id":"11",
         "custnum":"aa"
      },
      "department":{  
         "id":"201",
         "depnum":"dep1"
      }
   },
   {  
      "id":"2",
      "cardtype":"",
      "customer":{  
         "id":"11",
         "custnum":"aa"
      },
      "department":{  
         "id":"201",
         "depnum":"dep1"
      }
   },
   {  
      "id":"3",
      "cardtype":"",
      "customer":{  
         "id":"11",
         "custnum":"aa"
      },
      "department":{  
         "id":"201",
         "depnum":"dep1"
      }
   }
]

json 格式如上，试过很多写法，都不大适合，求解。

Type founder = new TypeToken<ArrayList<bean>>(){}.getType(); List<bean> founder = gson.fromJson(jsonstring, founder);

这样的写法也不行。

4 replies • 2017-07-28 14:42:49 +08:00

xjtlujoe

Jul 25, 2017

懂了 gson 的 mapping 只能用来解析两层内的数据，多层不适用

cassia

Jul 26, 2017

多层没问题

cassia

Jul 26, 2017

你的 bean 没写对

import lombok.Getter;
import lombok.Setter;
@Getter
@Setter
public class OneResult {
private String id;
private String cardtype;
private Dep department;
private Customer customer;

@Getter
@Setter
public class Dep {
private String id;
private String depnum;

}

@Getter
@Setter
public class Customer {
private String id;
private String custnum;
}

@Getter
@Setter
public class Department {
private String id;
private String depnum;
}
}

xjtlujoe

Jul 28, 2017

@cassia 用 Gsformat 自动写得 bean 这样写没试过