问题是这样的：我利用AsyncHttpClient向服务器请求列表json，利用fastjson解析成一个对象然后展示在listview中，长按listview的item告诉服务器删除这个item 再重新请求列表json，第二次解析的时候就报java.lang.ClassCastException: com.alibaba.fastjson.JSONArray cannot be cast to java.util.ArrayList
错误了
json格式如下：
"{ \"count\": 3, \"data\":[ { \"host_id\": 4, \"id\": 1, \"name\": \"阳光小区\", \"community_province\": \"浙江省\" ,\"community_city\": \"宁波市\" ,\"community_district\": \"鄞州区\" }, { \"host_id\": 4, \"id\": 2, \"name\": \"梦妃２号公寓\",\"community_province\": \"浙江省\", \"community_city\": \"宁波市\", \"community_district\": \"鄞州区\" }, { \"host_id\": 4, \"id\": 3, \"name\": \"house2小区\", \"community_province\": \"浙江省\", \"community_city\": \"宁波市\", \"community_district\": \"鄞州区\" } ], \"status\": \"ok\" }";
activity代码如下
public class CommunityActivity extends BaseActivity implements AdapterView.OnItemLongClickListener {
@InjectView(R.id.error_layout)
EmptyLayout emptyLayout;
@InjectView(R.id.list)
ListView listView;
private ArrayList<Community> communityList;
private CommunityAdapter communityAdapter;
private AsyncHttpResponseHandler handler = new AsyncHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
emptyLayout.setErrorType(EmptyLayout.HIDE_LAYOUT);
try {
String response ="{ \"count\": 3, \"data\":[ { \"host_id\": 4, \"id\": 1, \"name\": \"阳光小区\", \"community_province\": \"浙江省\" ,\"community_city\": \"宁波市\" ,\"community_district\": \"鄞州区\" }, { \"host_id\": 4, \"id\": 2, \"name\": \"梦妃２号公寓\",\"community_province\": \"浙江省\", \"community_city\": \"宁波市\", \"community_district\": \"鄞州区\" }, { \"host_id\": 4, \"id\": 3, \"name\": \"house2小区\", \"community_province\": \"浙江省\", \"community_city\": \"宁波市\", \"community_district\": \"鄞州区\" } ], \"status\": \"ok\" }";
//new String(responseBody);
//转换成对象
Result<ArrayList<Community>> result = JSON.parseObject(response, new TypeReference<Result<ArrayList<Community>>>() {
});
if (result.getStatus().equals("ok")) {
communityList = result.getData();
System.out.println(JSON.toJSONString(communityList));
if (communityAdapter == null) {
listView.setAdapter(new CommunityAdapter(communityList));
} else {
communityAdapter.setCommunityList(communityList);
communityAdapter.notifyDataSetChanged();
}
} else {
onFailure(statusCode, headers, responseBody, new Throwable());
}
} catch (Exception e) {
e.printStackTrace();
onFailure(statusCode, headers, responseBody, e);
}
}
@Override
public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
emptyLayout.setErrorType(EmptyLayout.NETWORK_ERROR);
AppContext.showToastShort("数据获取失败～！");
}
};
private AsyncHttpResponseHandler deleteHandler = new AsyncHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
emptyLayout.setErrorType(EmptyLayout.HIDE_LAYOUT);
try {
String response = new String(responseBody);
//转换成对象
Result result = JSON.parseObject(response, Result.class);
if (result.getStatus().equals("ok")) {
AppContext.showToastShort("删除成功～！");
} else {
AppContext.showToastShort("删除失败～！");
}
InyouziApi.getCommunities(handler);
} catch (Exception e) {
e.printStackTrace();
onFailure(statusCode, headers, responseBody, e);
}
}
@Override
public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
InyouziApi.getCommunities(handler);
AppContext.showToastShort("删除失败～！");
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
mActionBar.setDisplayShowTitleEnabled(false);
mActionBar.setDisplayShowCustomEnabled(true);
mActionBar.setCustomView(R.layout.actionbar_custom_view);
View view = mActionBar.getCustomView();
TextView textView = (TextView) view.findViewById(R.id.actionbar_title);
textView.setText(R.string.xuanzexiaoqu);
getMenuInflater().inflate(R.menu.menu_community, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_add) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected boolean hasBackButton() {
return true;
}
@Override
protected int getLayoutId() {
return R.layout.activity_community;
}
@Override
public void initView() {
emptyLayout.setOnLayoutClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sendRequestData();
}
});
listView.setOnItemLongClickListener(this);
}
@Override
public void initData() {
sendRequestData();
}
@Override
public void onClick(View v) {
}
private void sendRequestData() {
if (!TDevice.hasInternet()) {
AppContext.showToastShort(R.string.tip_no_internet);
emptyLayout.setErrorType(EmptyLayout.NETWORK_ERROR);
return;
}
emptyLayout.setErrorType(EmptyLayout.NETWORK_LOADING);
InyouziApi.getCommunities(handler);
}
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, final long id) {
DialogHelp.getConfirmDialog(this, "确定删除该小区？", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (!TDevice.hasInternet()) {
AppContext.showToastShort(R.string.tip_no_internet);
return;
}
emptyLayout.setErrorType(EmptyLayout.NETWORK_LOADING);
InyouziApi.deleteCommunity((int) id, deleteHandler);
}
}).show();
return false;
}
}