Httpclient POST

private String postHttpRequest(String objStr,String url){
		HttpClient client  = new DefaultHttpClient();
		String bodyStr = "";
		HttpPost httpPost = new HttpPost(url);
		try {
			StringEntity reqEntity = new StringEntity(objStr); //组装请求数据
			httpPost.setEntity(reqEntity);
		} catch (Exception e) {
			log.error("postHttpRequest get entity error", e);
			return bodyStr;
		}  
		try {
			HttpResponse response = client.execute(httpPost); //发送请求
			HttpEntity entity = response.getEntity();
			bodyStr = EntityUtils.toString(entity);  //得到结果内容
		}catch (Exception e) {
			log.error("postHttpRequest execute post error", e);
			return bodyStr;
		}  
		log.info("bodyStr : " + bodyStr);
		return bodyStr;
}