android平台接入服务器总结（一）91 豌豆荚

/**
* 检查用户登陆SESSIONID是否有效
* @param uin 91账号ID
* @param sessionID
* @return
* @throws Exception
*/
public int checkUserLogin(String uin,String sessionID) throws Exception{
String act = "4";
StringBuilder strSign = new StringBuilder();
strSign.append(appid);
strSign.append(act);
strSign.append(uin);
strSign.append(sessionID);
strSign.append(appkey);
String sign = md5(strSign.toString());
StringBuilder getUrl = new StringBuilder();
getUrl.append("Appid=");
getUrl.append(appid);
getUrl.append("&Act=");
getUrl.append(act);
getUrl.append("&Uin=");
getUrl.append(uin);
getUrl.append("&SessionId=");
getUrl.append(sessionID);
getUrl.append("&Sign=");
getUrl.append(sign);
return GetResult(HttpGetGo(getUrl.toString()));
}

/**
* 发送GET请求并获取结果
* @param getUrl
* @return
* @throws Exception
*/
private String HttpGetGo(String getUrl) throws Exception{
StringBuffer readOneLineBuff = new StringBuffer();
String content ="";
URL url = new URL( goUrl + getUrl);
URLConnection conn = url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(),"utf-8"));
String line = "";
while ((line = reader.readLine()) != null) {
readOneLineBuff.append(line);
}
content = readOneLineBuff.toString();
reader.close();
return content;
}