android url 中文请求,乱码解决

private String connServerForResult(String url) {
	String strResult = "";
	try {
		HttpClient httpClient = new DefaultHttpClient();
		HttpPost httpPost = new HttpPost();
		httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
		httpPost.setURI(new URI(url));
		//httpPost,通过urlParam添加请求参数
		List < NameValuePair > urlParam = new ArrayList < NameValuePair > ();

		//中文内容，通过URLDecoder.decode转码
		urlParam.add(new BasicNameValuePair("username", URLDecoder.decode(username.getText().toString(), "utf-8")));
		urlParam.add(new BasicNameValuePair("password", URLDecoder.decode(password.getText().toString(), "utf-8")));
		httpPost.setEntity(new UrlEncodedFormEntity(urlParam, HTTP.UTF_8));
		HttpResponse response = httpClient.execute(httpPost);
		HttpEntity entity = response.getEntity();
		if (entity != null)
			strResult = EntityUtils.toString(entity, HTTP.UTF_8);

	} catch (Exception e) {
		//
	}
	return strResult;
}