我有一个名为 Route 的对象,它存储 RouteStep 对象的 ArrayList。
一个 RouteStep 对象存储和 ArrayList 的int[]
.
这是一个类的示例。它们包含其他字段,但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;
}
}
下面是一个需要解析的Json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,用于解析 Json:
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");
}
JsonSyntaxExceptions
当它运行时,我不断得到。我已经使用相同的代码来解析包含原始类型的 ArrayLists 的对象数组,int[]
但是当 ArrayList 包含我自己类型的对象时,我不知道该怎么做。