Android 访问WebService登录通过Cookie保存登录状态

当我们App的一些操作需要用户登录之后才能操作的时候，如果不记录用户登录时的Cookie，用户进行其他需要登录之后才能进行操作的业务时候会显示如下：

{"successful":"false","code":"ETS-5BP9951","message":"您未登录或长时间未操作，请先登录！","details":""}

当出现以上情况的时候就是没有记录Cookie，两次请求的不是同一个Cookie的缘故。

一下是我个人对HttpClient 进行Cookie的添加，希望撸友给指点指点。

/**
* 从服务器通过post方式提交数据
*
* @param path
*            路径
* @param param
*            参数
* @return String
* @throws Exception
*/
public static String postClient(String path, Map<String, String> paramMap)
throws Exception {
String string = null;
Log.e("url",path);
DefaultHttpClient client = new DefaultHttpClient();
HttpPost request = new HttpPost(path);
if (!MyAppaction.isLogin) {//当进行的操作不是登录的时候，给请求设置Cookie
request.setHeader("Cookie",
MyAppaction.sharePreferences.readString("cookie", ""));
}
System.out.println(paramMap.toString());
List<NameValuePair> nvps = new ArrayList<NameValuePair>(
paramMap.size());
if (paramMap != null) {
for (Map.Entry<String, String> entry : paramMap.entrySet()) {
NameValuePair nvp = new BasicNameValuePair(entry.getKey(),
entry.getValue());
nvps.add(nvp);
}
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(nvps,
"utf-8");
request.setEntity(entity);
}
HttpResponse response;
try {
response = client.execute(request);
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
is = response.getEntity().getContent();
long length = response.getEntity().getContentLength();
string = InputStreamToString.MyIsToString(is);
if (MyAppaction.isLogin) {// 只有当为登录的时候才用
getCookie(client);//当操作是用户登录的时候记录Cookie
}
Log.e("response",string);
return string;
} else if (response.getStatusLine().getStatusCode() == HttpStatus.SC_GATEWAY_TIMEOUT) {
return "请求超时";
} else {
return "链接错误";
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (client != null) {
client.getConnectionManager().shutdown();
}
}
return string;
}

方法中的getCookie()如下

/**
* 存储Cookie
* @param httpClient
*/
private static void getCookie(DefaultHttpClient httpClient) {
List<Cookie> cookies = httpClient.getCookieStore().getCookies();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < cookies.size(); i++) {
Cookie cookie = cookies.get(i);
String cookieName = cookie.getName();
String cookieValue = cookie.getValue();
if (!TextUtils.isEmpty(cookieName)
&& !TextUtils.isEmpty(cookieValue)) {
sb.append(cookieName + "=");
sb.append(cookieValue + ";");
}
}
Log.e("cookie", sb.toString());
MyAppaction.sharePreferences.writeString("cookie", sb.toString());
}

以上是在开发过程中遇见的，希望能帮助到有需要的撸有，也希望撸友给兄弟我推荐更好的。