当 xstream 将 ShootRecord 转换为 xml 时，为什么会出现“调用 Ljava/util/WeakHashMap 时堆栈溢出”错误？
ShootRecord 类字段和构造函数
public class ShootRecord /* implements Serializable */
{
private String mShootRecordName = "";
private String mShootRecordDate = "";
private int mNumArchersOnTarget;
private int mScoreSheetTypeIndex;
private Bitmap mScoreSheetBackground = null;
private ArrayList<ScoreSheet> mListOfScoreSheets = new ArrayList<ScoreSheet>();
private int mActiveScoreSheetIndex = 0;
private ScoreSheetsView mScoreSheetsView;
/**
* Constructs a new ShootRecord object.
* @param scoreSheetsView Reference to the score sheet rendering View.
* @param name The name string for the shoot record.
* @param date The date string for the shoot record.
* @param archers The number of archers on the shoot record.
* @param sheetType The score sheet type index for the shoot record.
*/
public ShootRecord(ScoreSheetsView scoreSheetsView, String name, String date, int archers, int sheetType)
{
mScoreSheetsView = scoreSheetsView;
mShootRecordName = name;
mShootRecordDate = date;
mNumArchersOnTarget = archers;
mScoreSheetTypeIndex = sheetType;
}
MainActivity 类定义：
public class MainActivity extends Activity implements View.OnTouchListener
FileSender 类构造函数：
public FileSender(Activity activity)
{
mMainActivity = (MainActivity) activity;
}
FileSender 中的方法：
public boolean postToServletOverWifi(ShootRecord recToSend, Context context){
try{
/* prepare object as xml */
XStream xstream = new XStream();
/* make outputting of xml more concise (optional)*/
xstream.alias("ShootRecord", ShootRecord.class);
String xml = xstream.toXML(recToSend); /* convert object to xml */
WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
wifiManager.startScan();
List<ScanResult> list = wifiManager.getScanResults();
for( ScanResult i : list ) {
/* list network name/ssid */
i.describeContents();
}
/* get user selected wifi network
/* selectedNetwork = ??? selection from list
if(selectedNetwork.SSID != null && selectedNetwork.SSID.equals("\"" + networkSSID + "\"")) {
wifiManager.disconnect();
wifiManager.enableNetwork(selectedNetwork.SSID, true);
wifiManager.reconnect();
break;
}
*/
/* Create WifiConfiguration instance:
WifiConfiguration conf = new WifiConfiguration();
conf.SSID = "\"" + networkSSID + "\""; // string should contain ssid in quotes
conf.preSharedKey = "\""+ networkPass +"\"";
wifiManager.addNetwork(conf);
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://" + server + "/Archery");
post.setHeader("Content-type", "text/xml;charset=utf-8");
some call to post xml??
*/
} catch (Exception e){
System.out.println( e.getMessage() );
e.printStackTrace();
return false;
}
} //end method
调用方法：
public void promptUserToSendShootRecord(ShootRecord recToSend)
{
final ShootRecord shootRecord = recToSend;
createIntentToSendZippedRecord(shootRecord); //this method works
postToServletOverWifi(shootRecord, mMainActivity.mContext);
}
