Java，

Java，

HttpClient连接池:
http://xiaoa7.iteye.com/blog/1262034

HttpClient例子：
1.http://hi.baidu.com/laihua2006/item/48b9ab28f1be5181ae48f54e

public String httpGetString(String url) {
HttpEntity entity = null;
try {
HttpGet httpGet = new HttpGet(url);
HttpResponse response = getHttpClient().execute(httpGet);
entity = response.getEntity();
return getResponseStr(response, entity);
} catch (Exception e) {
LOGGER.warn(e.getMessage() + " url=" + url, e);
return null;
} finally {
consume(entity);
}
}

public String getResponseStr(HttpResponse response, HttpEntity entity) throws ReviewException, IOException {
StatusLine status = response.getStatusLine();
if (status == null || status.getStatusCode() != 200) {
throw new ReviewException("call api error, status="
+ (status == null ? StringUtils.EMPTY : status.getStatusCode()));
}
return EntityUtils.toString(entity, "UTF-8");
}

public void consume(HttpEntity entity) {
try {
EntityUtils.consume(entity);
} catch (IOException e) {
LOGGER.warn(e.getMessage(), e);
}
}