Android提交数据到服务器

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采用httpClient和HttpURLConnection两种方法。

原文地址:http://keeponmoving.iteye.com/blog/1528472

/** * @author Dylan * 本类封装了Android中向web服务器提交数据的两种方式四种方法 */public class SubmitDataByHttpClientAndOrdinaryWay {/** * 使用get请求以普通方式提交数据 * @param map 传递进来的数据,以map的形式进行了封装 * @param path 要求服务器servlet的地址 * @return 返回的boolean类型的参数 * @throws Exception */public Boolean submitDataByDoGet(Map<String, String> map, String path) throws Exception {// 拼凑出请求地址StringBuilder sb = new StringBuilder(path);sb.append("?");for (Map.Entry<String, String> entry : map.entrySet()) {sb.append(entry.getKey()).append("=").append(entry.getValue());sb.append("&");}sb.deleteCharAt(sb.length() - 1);String str = sb.toString();System.out.println(str);URL Url = new URL(str);HttpURLConnection HttpConn = (HttpURLConnection) Url.openConnection();HttpConn.setRequestMethod("GET");HttpConn.setReadTimeout(5000);// GET方式的请求不用设置什么DoOutPut()之类的吗?if (HttpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {return true;}return false;}/** * 普通方式的DoPost请求提交数据 * @param map 传递进来的数据,以map的形式进行了封装 * @param path 要求服务器servlet的地址 * @return 返回的boolean类型的参数 * @throws Exception */public Boolean submitDataByDoPost(Map<String, String> map, String path) throws Exception {// 注意Post地址中是不带参数的,所以newURL的时候要注意不能加上后面的参数URL Url = new URL(path);// Post方式提交的时候参数和URL是分开提交的,参数形式是这样子的:name=y&age=6StringBuilder sb = new StringBuilder();// sb.append("?");for (Map.Entry<String, String> entry : map.entrySet()) {sb.append(entry.getKey()).append("=").append(entry.getValue());sb.append("&");}sb.deleteCharAt(sb.length() - 1);String str = sb.toString();HttpURLConnection HttpConn = (HttpURLConnection) Url.openConnection();HttpConn.setRequestMethod("POST");HttpConn.setReadTimeout(5000);HttpConn.setDoOutput(true);HttpConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");HttpConn.setRequestProperty("Content-Length", String.valueOf(str.getBytes().length));OutputStream os = HttpConn.getOutputStream();os.write(str.getBytes());if (HttpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {return true;}return false;}/** * 以HttpClient的DoGet方式向服务器发送请数据 * @param map 传递进来的数据,以map的形式进行了封装 * @param path 要求服务器servlet的地址 * @return 返回的boolean类型的参数 * @throws Exception */public Boolean submitDataByHttpClientDoGet(Map<String, String> map, String path) throws Exception {HttpClient hc = new DefaultHttpClient();// 请求路径StringBuilder sb = new StringBuilder(path);sb.append("?");for (Map.Entry<String, String> entry : map.entrySet()) {sb.append(entry.getKey()).append("=").append(entry.getValue());sb.append("&");}sb.deleteCharAt(sb.length() - 1);String str = sb.toString();System.out.println(str);HttpGet request = new HttpGet(sb.toString());HttpResponse response = hc.execute(request);if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {return true;}return false;}/** * 以HttpClient的DoPost方式提交数据到服务器 * @param map 传递进来的数据,以map的形式进行了封装 * @param path 要求服务器servlet的地址 * @return 返回的boolean类型的参数 * @throws Exception */public Boolean submintDataByHttpClientDoPost(Map<String, String> map, String path) throws Exception {// 1. 获得一个相当于浏览器对象HttpClient,使用这个接口的实现类来创建对象,DefaultHttpClientHttpClient hc = new DefaultHttpClient();// DoPost方式请求的时候设置请求,关键是路径HttpPost request = new HttpPost(path);// 2. 为请求设置请求参数,也即是将要上传到web服务器上的参数List<NameValuePair> parameters = new ArrayList<NameValuePair>();for (Map.Entry<String, String> entry : map.entrySet()) {NameValuePair nameValuePairs = new BasicNameValuePair(entry.getKey(), entry.getValue());parameters.add(nameValuePairs);}// 请求实体HttpEntity也是一个接口,我们用它的实现类UrlEncodedFormEntity来创建对象,注意后面一个String类型的参数是用来指定编码的HttpEntity entity = new UrlEncodedFormEntity(parameters, "UTF-8");request.setEntity(entity);// 3. 执行请求HttpResponse response = hc.execute(request);// 4. 通过返回码来判断请求成功与否if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {return true;}return false;}}



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