我有一个名为Route的对象,该对象存储RouteStep对象的ArrayList。
RouteStep对象存储int[]
和ArrayList。
这是类的示例。它们包含其他字段,但是我在这里省略了它们:
public class Route {
@Expose private long routeId;
@Expose private List<RouteStep> routeSteps;
public Route() {}
public long getRouteId() {
return routeId;
}
public void setRouteId(long routeId) {
this.routeId = routeId;
}
public List<RouteStep> getRouteSteps() {
return routeSteps;
}
public void setRouteSteps(List<RouteStep> routeSteps) {
this.routeSteps = routeSteps;
}
}
public class RouteStep {
@Expose private ArrayList<int[]> coordinates = new ArrayList<int[]>();
public RouteStep() {}
public ArrayList<int[]> getCoordinates() {
return coordinates;
}
public void setCoordinates(ArrayList<int[]> coordinates) {
this.coordinates = coordinates;
}
}
这是需要解析的Json的示例:
[
{
"routeId": -1,
"user": "aa",
"date": "08/01/2013 18:20:49",
"routeName": "route 1",
"distance": 536.4938,
"routeSteps": [
{
"type": "LineString",
"coordinates": [
[
55.940847,
-3.182992000000008
],
[
55.941983999999984,
-3.186577000000001
],
[
55.94265899999998,
-3.19088
]
]
}
]
},
{
"routeId": -2,
"user": "aa",
"date": "08/01/2013 18:21:39",
"routeName": "route 2",
"distance": 455.127,
"routeSteps": [
{
"type": "LineString",
"coordinates": [
[
55.94265899999998,
-3.19088
],
[
55.942732999999976,
-3.191536000000003
],
[
55.94519300000003,
-3.19124800000001
],
[
55.946433,
-3.191014999999997
]
]
}
]
}
]
我的课堂上有这个解析Json的内容:
Gson gson = new Gson();
try {
routes = gson.fromJson(json, Route[].class);
} catch(JsonSyntaxException e1) {
Log.e(TAG, "Syntax exception in retrieved JSON");
} catch(JsonParseException e2) {
Log.e(TAG, "Exception occured parsing retrieved JSON");
}
运行此命令时,我一直得到
JsonSyntaxExceptions
。我使用相同的代码来解析包含原始类型(例如int[]
)的ArrayList的对象数组,但是当ArrayList包含我自己的类型的对象时,我不确定如何执行此操作。 最佳答案
发布您的实际堆栈跟踪会有所帮助,但是...您有:
private ArrayList<int[]> coordinates = new ArrayList<int[]>();
并试图解析:
[
55.940847,
-3.182992000000008
],
那些不是
int
。修复该问题,它应该可以正常工作。