import cz.msebera.android.httpclient.client.utils.URLEncodedUtils; //导入依赖的package包/类
private ParameterList parseEntityParams() {	
	cz.msebera.android.httpclient.HttpEntity entity = null;
	List<cz.msebera.android.httpclient.NameValuePair> parameters = null;
	try{
		entity = ((HttpEntityEnclosingRequestBase) httpUriRequest).getEntity();
		parameters = new ArrayList<NameValuePair>( URLEncodedUtils.parse(entity));
	} catch (Exception e) { 
		return new ParameterList();
	}
	
	ParameterList list = new ParameterList();
	for (NameValuePair pair : parameters) {
		list.add(pair.getName(), pair.getValue());
	}
	return list;
}
 

import cz.msebera.android.httpclient.client.utils.URLEncodedUtils; //导入依赖的package包/类
protected String getParamString() {
    return URLEncodedUtils.format(getParamsList(), contentEncoding);
}