希望解析一些Json并解析数组数组.不幸的是我无法弄清楚如何处理json中的嵌套数组.
- {
- "type": "MultiPolygon","coordinates": [
- [
- [
- [
- -71.25,42.33
- ],[
- -71.25,42.33
- ]
- ]
- ],[
- [
- [
- -71.23,[
- -71.23,42.33
- ]
- ]
- ]
- ]
- }
当我只是一个阵列时,我实现了什么.
- public class JsonObjectBreakDown {
- public String type;
- public List<List<String[]>> coordinates = new ArrayList<>();
- public void setCoordinates(List<List<String[]>> coordinates) {
- this.coordinates = coordinates;
- }
- }
解析呼叫
- JsonObjectBreakDown p = gson.fromJson(withDup,JsonObjectBreakDown.class);
解决方法
你有一组数组的字符串数组数组.你需要
- public List<List<List<String[]>>> coordinates = new ArrayList<>();
下列
- public static void main(String args[]) {
- Gson gson = new Gson();
- String jsonstr ="{ \"type\": \"MultiPolygon\",\"coordinates\": [ [ [ [ -71.25,42.33 ],[ -71.25,42.33 ] ] ],[ [ [ -71.23,[ -71.23,42.33 ] ] ] ]}";
- JsonObjectBreakDown obj = gson.fromJson(jsonstr,JsonObjectBreakDown.class);
- System.out.println(Arrays.toString(obj.coordinates.get(0).get(0).get(0)));
- }
- public static class JsonObjectBreakDown {
- public String type;
- public List<List<List<String[]>>> coordinates = new ArrayList<>();
- public void setCoordinates(List<List<List<String[]>>> coordinates) {
- this.coordinates = coordinates;
- }
- }
版画
- [-71.25,42.33]
