java.lang.IllegalArgumentException异常:引起不良类:类java.lang.String [英] Caused by: java.lang.IllegalArgumentException: Bad class: class java.lang.String
问题描述
我想这是我从我的数据库表中检索格式的日期,我想从2015年02 11 12 00格式化为2月2日,但是当我格式化它给出了一个错误。是否有任何其他方式格式化这些日期?
I'm trying to format dates which I retrieve from my database table, I wanted to format from "2015 02 11 12 00" to "Feb 2" but it gives an error when I format it. Is there any other ways formatting those dates?
继codeS:
protected String doInBackground(String... args) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_events, "GET", params);
// Check your log cat for JSON reponse
Log.d("All events: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// events found
// Getting Array of events
events = json.getJSONArray(TAG_EVENTS);
// looping through All events
for (int i = 0; i < events.length(); i++) {
JSONObject c = events.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_PID);
String eventname = c.getString(TAG_EVENTNAME);
String eventstart = c.getString(TAG_EVENTSTART);
String eventstartconvert = formatdate.format(eventstart); //this line gives an error.
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_PID, id);
map.put(TAG_EVENTNAME, eventname);
map.put(TAG_EVENTSTART,eventstartconvert);
// adding HashList to ArrayList
eventsList.add(map);
}
}
下面是我的logcat的:
Here's my logcat:
02-11 09:14:40.997 25966-26198/com.example.jithea.testlogin E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #2
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:299)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
at java.util.concurrent.FutureTask.run(FutureTask.java:239)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:838)
Caused by: java.lang.IllegalArgumentException: Bad class: class java.lang.String
at java.text.DateFormat.format(DateFormat.java:359)
at java.text.Format.format(Format.java:93)
at com.example.jithea.testlogin.EventsActivity$LoadAllevents.doInBackground(EventsActivity.java:137)
at com.example.jithea.testlogin.EventsActivity$LoadAllevents.doInBackground(EventsActivity.java:91)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask.run(FutureTask.java:234)
在android.os.AsyncTask $ SerialExecutor $ 1.run(AsyncTask.java:230)
在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
在java.util.concurrent.ThreadPoolExecutor中的$ Worker.run(ThreadPoolExecutor.java:573)
在java.lang.Thread.run(Thread.java:838)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) at java.lang.Thread.run(Thread.java:838)
推荐答案
你可能在你这个格式,日期格式化.......
You could you this format for date formating.......
DateFormat inputFormatter1 = new SimpleDateFormat("yyyy-MM-dd");
Date date1 = inputFormatter1.parse("2015-2-22");
DateFormat outputFormatter1 = new SimpleDateFormat("dd-MMM-yyyy");
String output1 = outputFormatter1.format(date1); //
//如果此格式的输入是2015年2月22日比放出来将是22月 - 2015年
// if in this format input is 2015-2-22 than out put will be 22-Feb-2015
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