private static HttpClient httpClient;
static {
if (httpClient == null) {
HttpParams params = new BasicHttpParams();
// 设置一些基本参数
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
// 超时设置 /* 从连接池中取连接的超时时间 */
ConnManagerParams.setTimeout(params, 1000);
/* 连接超时 */
HttpConnectionParams.setConnectionTimeout(params, 2000);
/* 请求超时 */
HttpConnectionParams.setSoTimeout(params, 4000);
SchemeRegistry schReg = new SchemeRegistry();
schReg.register(new Scheme("http", PlainSocketFactory
.getSocketFactory(), 80));
schReg.register(new Scheme("https", SSLSocketFactory
.getSocketFactory(), 443));
// 使用线程安全的连接管理来创建HttpClient
ClientConnectionManager conMgr = new ThreadSafeClientConnManager(
params, schReg);
httpClient = new DefaultHttpClient(conMgr, params);
}
}
@SuppressWarnings("unchecked")
private <
T
> T getJsonObjectFromUrl(String urlStr,
List<
NameValuePair
> params, Class<
T
> className) throws Exception{
T object = null;
InputStream in = null;
try {
HttpPost httpPost = new HttpPost(urlStr);
if (params != null) {
// List<
NameValuePair
> nvps = new ArrayList<
NameValuePair
>();
// for (Entry<
String
, String> entry : params.entrySet()) {
// nvps.add(new BasicNameValuePair(entry.getKey(), entry
// .getValue()));
// }
httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
}
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
if(entity!=null){
in= entity.getContent(); //之前没使用这个造成了大量异常抛出
}
/*String s = EntityUtils.toString(in, "UTF-8");
if (entity != null) {
EntityUtils.consume(entity);
}*/
String s = inputStream2String(in,"UTF-8");
JsonResult jsonResult = (JsonResult)JSONObject.parseObject(s, JsonResult.class);
if(jsonResult.getCode() == 200){
Object obj = jsonResult.getData();
if(obj != null){
if(className.isInstance(obj)){
object = (T)(obj);
}
else if(obj instanceof JSONObject){
object= JSONObject.parseObject(obj.toString(), className);
}
}
}else{
throw new Exception(jsonResult.getMsg());
}
if(in!=null){
in.close();
}
} catch (Exception e) {
throw e;
}
return object;
}