引用:http://blog.csdn.net/zuolongsnail/article/details/6373051
Android应用经常会和服务器端交互,这就需要手机客户端发送网络请求,下面介绍四种常用网络请求方式,我这边是通过Android单元测试来完成这四种方法的,还不清楚Android的单元测试的同学们请看Android开发技巧总结中的Android单元测试的步骤一文。
java.net包中的HttpURLConnection类
Get方式:
- // Get方式请求
- public static void requestByGet() throws Exception {
- String path = "https://reg.163.com/logins.jsp?id=helloworld&pwd=android";
- // 新建一个URL对象
- URL url = new URL(path);
- // 打开一个HttpURLConnection连接
- HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
- // 设置连接超时时间
- urlConn.setConnectTimeout(5 * 1000);
- // 开始连接
- urlConn.connect();
- // 判断请求是否成功
- if (urlConn.getResponseCode() == HTTP_200) {
- // 获取返回的数据
- byte[] data = readStream(urlConn.getInputStream());
- Log.i(TAG_GET, "Get方式请求成功,返回数据如下:");
- Log.i(TAG_GET, new String(data, "UTF-8"));
- } else {
- Log.i(TAG_GET, "Get方式请求失败");
- }
- // 关闭连接
- urlConn.disconnect();
- }
Post方式:
- // Post方式请求
- public static void requestByPost() throws Throwable {
- String path = "https://reg.163.com/logins.jsp";
- // 请求的参数转换为byte数组
- String params = "id=" + URLEncoder.encode("helloworld", "UTF-8")
- + "&pwd=" + URLEncoder.encode("android", "UTF-8");
- byte[] postData = params.getBytes();
- // 新建一个URL对象
- URL url = new URL(path);
- // 打开一个HttpURLConnection连接
- HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
- // 设置连接超时时间
- urlConn.setConnectTimeout(5 * 1000);
- // Post请求必须设置允许输出
- urlConn.setDoOutput(true);
- // Post请求不能使用缓存
- urlConn.setUseCaches(false);
- // 设置为Post请求
- urlConn.setRequestMethod("POST");
- urlConn.setInstanceFollowRedirects(true);
- // 配置请求Content-Type
- urlConn.setRequestProperty("Content-Type",
- "application/x-www-form-urlencode");
- // 开始连接
- urlConn.connect();
- // 发送请求参数
- DataOutputStream dos = new DataOutputStream(urlConn.getOutputStream());
- dos.write(postData);
- dos.flush();
- dos.close();
- // 判断请求是否成功
- if (urlConn.getResponseCode() == HTTP_200) {
- // 获取返回的数据
- byte[] data = readStream(urlConn.getInputStream());
- Log.i(TAG_POST, "Post请求方式成功,返回数据如下:");
- Log.i(TAG_POST, new String(data, "UTF-8"));
- } else {
- Log.i(TAG_POST, "Post方式请求失败");
- }
- }
org.apache.http包中的HttpGet和HttpPost类
Get方式:
- // HttpGet方式请求
- public static void requestByHttpGet() throws Exception {
- String path = "https://reg.163.com/logins.jsp?id=helloworld&pwd=android";
- // 新建HttpGet对象
- HttpGet httpGet = new HttpGet(path);
- // 获取HttpClient对象
- HttpClient httpClient = new DefaultHttpClient();
- // 获取HttpResponse实例
- HttpResponse httpResp = httpClient.execute(httpGet);
- // 判断是够请求成功
- if (httpResp.getStatusLine().getStatusCode() == HTTP_200) {
- // 获取返回的数据
- String result = EntityUtils.toString(httpResp.getEntity(), "UTF-8");
- Log.i(TAG_HTTPGET, "HttpGet方式请求成功,返回数据如下:");
- Log.i(TAG_HTTPGET, result);
- } else {
- Log.i(TAG_HTTPGET, "HttpGet方式请求失败");
- }
- }
Post方式:
- // HttpPost方式请求
- public static void requestByHttpPost() throws Exception {
- String path = "https://reg.163.com/logins.jsp";
- // 新建HttpPost对象
- HttpPost httpPost = new HttpPost(path);
- // Post参数
- List<NameValuePair> params = new ArrayList<NameValuePair>();
- params.add(new BasicNameValuePair("id", "helloworld"));
- params.add(new BasicNameValuePair("pwd", "android"));
- // 设置字符集
- HttpEntity entity = new UrlEncodedFormEntity(params, HTTP.UTF_8);
- // 设置参数实体
- httpPost.setEntity(entity);
- // 获取HttpClient对象
- HttpClient httpClient = new DefaultHttpClient();
- // 获取HttpResponse实例
- HttpResponse httpResp = httpClient.execute(httpPost);
- // 判断是够请求成功
- if (httpResp.getStatusLine().getStatusCode() == HTTP_200) {
- // 获取返回的数据
- String result = EntityUtils.toString(httpResp.getEntity(), "UTF-8");
- Log.i(TAG_HTTPGET, "HttpPost方式请求成功,返回数据如下:");
- Log.i(TAG_HTTPGET, result);
- } else {
- Log.i(TAG_HTTPGET, "HttpPost方式请求失败");
- }
- }
以上是一些部分代码,测试的时候在测试类中运行对应的测试方法即可。完整代码点这里下载