处女apk纠结过的技术点

网络链接访问为题
android url访问主要分为两种：一种是httpurlconnection,另一种是httpclient，而前者只是简单的访问，不能设置参数，头文件等，而后者刚好弥补了前者的不足:

/**
* 执行一个HTTP GET请求，返回请求响应的HTML
*
* @param url
* 请求的URL地址
* @param queryString
* 请求的查询参数,可以为null
* @param charset
* 字符集
* @param pretty
* 是否美化
* @return 返回请求响应的HTML
*/
public static String doGetHttpHTML(String url, String cookie) {
StringBuffer response = new StringBuffer();
DefaultHttpClient client = new DefaultHttpClient();
HttpGet method = new HttpGet(url);
// 设置Http header数据
if(cookie != null){
String sessionId=StringUtils.cookieHandle(cookie.toString());
method.setHeader("Cookie",sessionId);
}
try {

HttpResponse res=client.execute(method);
if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
HttpEntity entity=res.getEntity();
BufferedReader reader = new BufferedReader(new InputStreamReader(entity.getContent()));
String line;
while ((line = reader.readLine()) != null) {
response.append(line).append(System.getProperty("line.separator"));
}
reader.close();
}
return response.toString();
} catch(IOException e) {
Log.i("执行HTTP Get请求" + url + "时，发生异常！", e.toString());
return "InternetFail";
} finally {
client.getConnectionManager().shutdown();
}
}

以上获取返回值和httpurlconnection 功能差不多，一下这段代码获取cookie

/**
* 获取登陆Cookie
* @param urlpath
* @return
* @throws Exception
*/
public static String getData(String url){
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(url);
try {
HttpResponse response = httpclient.execute(httpget);
CookieStore cookie=httpclient.getCookieStore();
return cookie.toString();
} catch (ClientProtocolException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}

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