本文介绍了Java.lang.arrayindexoutofboundexception的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
以下功能适用于一些farmsid但是当我超过约检索数据。 30行我正在
java.lang.arrayindexoutofboundexception:长度= 15802; regionstart = 1; regionlength = 15803在java.util.arrays.checkoffsetandcount(arrays.java:1731)
code
公共静态的ArrayList<外勤及GT; GetFarmFields(UUID FarmId)
{
ArrayList的<外勤及GT; FieldsList =新的ArrayList<外勤及GT;(); InputStream的流= NULL; 尝试
{
字符串URL = Params.GetServiceUrl()+/ GetFarmFields FarmId =?+ URLEn coder.en code(FarmId.toString())+&放大器; apikey =+ Params.GetApiKey(); HTTPGET请求=新HTTPGET(URL);
request.setHeader(接受,应用/ JSON);
request.setHeader(内容类型,应用/ JSON); DefaultHttpClient的HttpClient =新DefaultHttpClient();
HTT presponse响应= httpclient.execute(请求);
HttpEntity responseEntity = response.getEntity(); INT CONTENTLENGTH =(int)的responseEntity.getContentLength();
的char []缓冲区=新的char [CONTENTLENGTH]
流= responseEntity.getContent();
InputStreamReader的读者=新的InputStreamReader(流); INT hasRead = 0;
而(hasRead< CONTENTLENGTH)
hasRead + = reader.read(缓冲,hasRead,CONTENTLENGTH-hasRead); stream.close(); JSONArray JSFields =新JSONArray(新的String(缓冲)); 的for(int i = 0; I< JSFields.length();我++)
{
JSONObject的JSField = JSFields.getJSONObject(I) 现场ThisField =新领域(); ThisField.setFieldId(UUID.fromString(JSField.getString(FieldId)));
ThisField.setName(JSField.getString(姓名));
ThisField.setDescription(JSField.getString(描述));
ThisField.setSizeHA(Float.valueOf(JSField.getString(SizeHA)));
ThisField.setSizeA(Float.valueOf(JSField.getString大小(sizeA)));
ThisField.setOwner(JSField.getString(所有者));
ThisField.setAnnualRent(JSField.getDouble(AnnualRent));
ThisField.setLatitude(JSField.getDouble(纵横));
ThisField.setLongitude(JSField.getDouble(经度));
ThisField.setFarmId(UUID.fromString(JSField.getString(FarmId)));
ThisField.setIsActive(JSField.getBoolean(IsActive));
ThisField.setDeactivationDate(Utility.JsonDateToDate(JSField.getString(DeactivationDate)));
ThisField.setAreas(JSField.getString(区域));
ThisField.setUsageCount(JSField.getInt(UsageCount));
ThisField.setLatestCulture(JSField.getString(LatestCulture));
ThisField.setLatestSort(JSField.getString(LatestSort)); FieldsList.add(ThisField);
} Log.d(GetFarmFields,GetFarmFields结果:+ response.getStatusLine()的getStatus code()++新的String(缓冲)。);
}
赶上(JSONException E)
{
e.printStackTrace();
}
赶上(UnsupportedEncodingException五)
{
e.printStackTrace();
}
赶上(ClientProtocolException E)
{
e.printStackTrace();
}
赶上(IOException异常E)
{
e.printStackTrace();
}
赶上(例外五)
{
e.printStackTrace();
}
最后
{
如果(流!= NULL)
{
尝试{stream.close();}赶上(IOException异常五){e.printStackTrace();}
}
} 返回FieldsList;
}
下面是我对异步任务
获取崩溃日志//崩溃日志
06-23 14:25:07.916:W / System.err的(4254):java.lang.ArrayIndexOutOfBoundsException:长度= 15802; regionStart = -1; regionLength = 15803
06-23 14:25:07.916:W / System.err的(4254):在java.util.Arrays.checkOffsetAndCount(Arrays.java:1731)
06-23 14:25:07.916:W / System.err的(4254):在java.io.InputStreamReader.read(InputStreamReader.java:218)
06-23 14:25:07.916:W / System.err的(4254):在com.helpers.plantivomobilepro.FieldHelper.GetFarmFields(FieldHelper.java:93)
06-23 14:25:07.926:W / System.err的(4254):在com.andreas.plantivomobilepro.FieldsActivity $ 5.doWork(FieldsActivity.java:245)
06-23 14:25:07.926:W / System.err的(4254):在com.andreas.plantivomobilepro.FieldsActivity $ 5.doWork(FieldsActivity.java:1)
06-23 14:25:07.926:W / System.err的(4254):在com.andreas.plantivomobilepro.CustomAsyncTask.doInBackground(CustomAsyncTask.java:25)
06-23 14:25:07.926:W / System.err的(4254):在android.os.AsyncTask $ 2.call(AsyncTask.java:264)
06-23 14:25:07.926:W / System.err的(4254):在java.util.concurrent.FutureTask中$ Sync.innerRun(FutureTask.java:305)
06-23 14:25:07.926:W / System.err的(4254):在java.util.concurrent.FutureTask.run(FutureTask.java:137)
06-23 14:25:07.936:W / System.err的(4254):在android.os.AsyncTask $ SerialExecutor $ 1.run(AsyncTask.java:208)
06-23 14:25:07.936:W / System.err的(4254):在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
06-23 14:25:07.936:W / System.err的(4254):在java.util.concurrent.ThreadPoolExecutor中的$ Worker.run(ThreadPoolExecutor.java:569)
06-23 14:25:07.936:W / System.err的(4254):在java.lang.Thread.run(Thread.java:856)
解决方案
改变
INT CONTENTLENGTH =(int)的responseEntity.getContentLength();
的char []缓冲区=新的char [CONTENTLENGTH]
流= responseEntity.getContent();
InputStreamReader的读者=新的InputStreamReader(流);INT hasRead = 0;
而(hasRead< CONTENTLENGTH)
hasRead + = reader.read(缓冲,hasRead,CONTENTLENGTH-hasRead);stream.close();
与
字符串缓冲区= EntityUtils.toString(responseEntity);
below function works for some farmsid but when I retrieve data with more than approx. 30 rows I am getting
java.lang.arrayindexoutofboundexception:length=15802;regionstart=1;regionlength=15803 at java.util.arrays.checkoffsetandcount(arrays.java:1731)
Code
public static ArrayList<Field> GetFarmFields(UUID FarmId)
{
ArrayList<Field> FieldsList = new ArrayList<Field>();
InputStream stream = null;
try
{
String Url = Params.GetServiceUrl() + "/GetFarmFields?FarmId="+URLEncoder.encode(FarmId.toString())+"&apikey="+Params.GetApiKey();
HttpGet request = new HttpGet(Url);
request.setHeader("Accept", "application/json");
request.setHeader("Content-type", "application/json");
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpResponse response = httpclient.execute(request);
HttpEntity responseEntity = response.getEntity();
int contentLength = (int) responseEntity.getContentLength();
char[] buffer = new char[contentLength];
stream = responseEntity.getContent();
InputStreamReader reader = new InputStreamReader(stream);
int hasRead = 0;
while (hasRead < contentLength)
hasRead += reader.read(buffer, hasRead, contentLength-hasRead);
stream.close();
JSONArray JSFields = new JSONArray(new String(buffer));
for(int i=0; i<JSFields.length(); i++)
{
JSONObject JSField = JSFields.getJSONObject(i);
Field ThisField = new Field();
ThisField.setFieldId(UUID.fromString(JSField.getString("FieldId")));
ThisField.setName(JSField.getString("Name"));
ThisField.setDescription(JSField.getString("Description"));
ThisField.setSizeHA(Float.valueOf(JSField.getString("SizeHA")));
ThisField.setSizeA(Float.valueOf(JSField.getString("SizeA")));
ThisField.setOwner(JSField.getString("Owner"));
ThisField.setAnnualRent(JSField.getDouble("AnnualRent"));
ThisField.setLatitude(JSField.getDouble("Latitude"));
ThisField.setLongitude(JSField.getDouble("Longitude"));
ThisField.setFarmId(UUID.fromString(JSField.getString("FarmId")));
ThisField.setIsActive(JSField.getBoolean("IsActive"));
ThisField.setDeactivationDate(Utility.JsonDateToDate(JSField.getString("DeactivationDate")));
ThisField.setAreas(JSField.getString("Areas"));
ThisField.setUsageCount(JSField.getInt("UsageCount"));
ThisField.setLatestCulture(JSField.getString("LatestCulture"));
ThisField.setLatestSort(JSField.getString("LatestSort"));
FieldsList.add(ThisField);
}
Log.d("GetFarmFields", "GetFarmFields Result: " + response.getStatusLine().getStatusCode()+" "+new String(buffer));
}
catch (JSONException e)
{
e.printStackTrace();
}
catch (UnsupportedEncodingException e)
{
e.printStackTrace();
}
catch (ClientProtocolException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
catch (Exception e)
{
e.printStackTrace();
}
finally
{
if (stream != null)
{
try {stream.close();} catch (IOException e) {e.printStackTrace();}
}
}
return FieldsList;
}
below is the crash log which I am getting on the async task
//Crash log
06-23 14:25:07.916: W/System.err(4254): java.lang.ArrayIndexOutOfBoundsException: length=15802; regionStart=-1; regionLength=15803
06-23 14:25:07.916: W/System.err(4254): at java.util.Arrays.checkOffsetAndCount(Arrays.java:1731)
06-23 14:25:07.916: W/System.err(4254): at java.io.InputStreamReader.read(InputStreamReader.java:218)
06-23 14:25:07.916: W/System.err(4254): at com.helpers.plantivomobilepro.FieldHelper.GetFarmFields(FieldHelper.java:93)
06-23 14:25:07.926: W/System.err(4254): at com.andreas.plantivomobilepro.FieldsActivity$5.doWork(FieldsActivity.java:245)
06-23 14:25:07.926: W/System.err(4254): at com.andreas.plantivomobilepro.FieldsActivity$5.doWork(FieldsActivity.java:1)
06-23 14:25:07.926: W/System.err(4254): at com.andreas.plantivomobilepro.CustomAsyncTask.doInBackground(CustomAsyncTask.java:25)
06-23 14:25:07.926: W/System.err(4254): at android.os.AsyncTask$2.call(AsyncTask.java:264)
06-23 14:25:07.926: W/System.err(4254): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
06-23 14:25:07.926: W/System.err(4254): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
06-23 14:25:07.936: W/System.err(4254): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208)
06-23 14:25:07.936: W/System.err(4254): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
06-23 14:25:07.936: W/System.err(4254): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
06-23 14:25:07.936: W/System.err(4254): at java.lang.Thread.run(Thread.java:856)
解决方案
change
int contentLength = (int) responseEntity.getContentLength();
char[] buffer = new char[contentLength];
stream = responseEntity.getContent();
InputStreamReader reader = new InputStreamReader(stream);
int hasRead = 0;
while (hasRead < contentLength)
hasRead += reader.read(buffer, hasRead, contentLength-hasRead);
stream.close();
with
String buffer = EntityUtils.toString(responseEntity);
这篇关于Java.lang.arrayindexoutofboundexception的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!