Gson - 從JSON字符串獲取值

Question

我有以下JSON字符串。我想在Gson庫的幫助下獲取formatted_address。我已經完成了對象到JSON的轉換。但是這次要獲取特定鍵的值並將其存儲在一個字符串中。

{ 
    "results" : [ 
     { 
     "address_components" : [ 
      { 
       "long_name" : "Mumbai Highway", 
       "short_name" : "NH 9", 
       "types" : [ "route" ] 
      }, 
      { 
       "long_name" : "Kumar Swamy Nagar", 
       "short_name" : "Kumar Swamy Nagar", 
       "types" : [ "sublocality_level_1", "sublocality", "political" ] 
      }, 
      { 
       "long_name" : "Solapur", 
       "short_name" : "Solapur", 
       "types" : [ "locality", "political" ] 
      }, 
      { 
       "long_name" : "Solapur", 
       "short_name" : "Solapur", 
       "types" : [ "administrative_area_level_2", "political" ] 
      }, 
      { 
       "long_name" : "Maharashtra", 
       "short_name" : "MH", 
       "types" : [ "administrative_area_level_1", "political" ] 
      }, 
      { 
       "long_name" : "India", 
       "short_name" : "IN", 
       "types" : [ "country", "political" ] 
      }, 
      { 
       "long_name" : "413002", 
       "short_name" : "413002", 
       "types" : [ "postal_code" ] 
      } 
     ], 
     "formatted_address" : "Mumbai Highway, Kumar Swamy Nagar, Solapur, Maharashtra 413002, India", 
     "geometry" : { 
      "bounds" : { 
       "northeast" : { 
        "lat" : 17.6920319, 
        "lng" : 75.9232926 
       }, 
       "southwest" : { 
        "lat" : 17.6910298, 
        "lng" : 75.9215124 
       } 
      }, 
      "location" : { 
       "lat" : 17.6915905, 
       "lng" : 75.9224399 
      }, 
      "location_type" : "APPROXIMATE", 
      "viewport" : { 
       "northeast" : { 
        "lat" : 17.6928798302915, 
        "lng" : 75.92375148029151 
       }, 
       "southwest" : { 
        "lat" : 17.6901818697085, 
        "lng" : 75.92105351970851 
       } 
      } 
     }, 
     "place_id" : "ChIJhZADyJLaxTsRj9W-lIgGaRM", 
     "types" : [ "route" ] 
     } 
    ], 
    "status" : "OK" 
} 

我想解析JSON字符串ang獲取「formatted_address」的值。

Answer 1

//result is your json data in the form of string..convert json data to string. 
JSONObject returnValue = new JSONObject(result); 

//getting array from json 
JSONArray results= returnValue.getJSONArray("results"); 

for (int i = 0; i < results.length(); i++) { 
    JSONObject ParentObject = results.getJSONObject(i); 

    //getting particular_key... 
    String format_addrs=ParentObject.getString("formatted_address");  
}