使用SAE的服务来实现android端的用户反馈功能。

 1 public class UserMessage extends Activity implements OnClickListener {
 2     private static final String TAG = UserMessage.class.getSimpleName();
 3     private EditText tvText, tvMail;
 4     @Override
 5     protected void onCreate(Bundle savedInstanceState) {
 6       super.onCreate(savedInstanceState);
 7       setContentView(R.layout.activity_gettext);
 8       tvText = (EditText) findViewById(R.id.user_text);
 9       tvMail = (EditText) findViewById(R.id.user_mail);
10       Button button = (Button) findViewById(R.id.user_bt);
11       button.setOnClickListener(this);
12       TextView userInfo = (TextView) findViewById(R.id.user_info);
13       userInfo.setText(getInfo());
14     }
15     // 获得机型、android版本、应用版本号
16     private String getInfo() {
17       PackageManager pManager = getPackageManager();
18       PackageInfo pInfo = null;
19       try {
20         pInfo = pManager.getPackageInfo(getPackageName(), 0);
21       } catch (NameNotFoundException e) {
22         Log.e(TAG, "包名不存在");
23         e.printStackTrace();
24       }
25       StringBuilder info = new StringBuilder();
26       info.append("机型：" + android.os.Build.MODEL);
27       info.append(" Android" + android.os.Build.VERSION.RELEASE);
28       info.append(" 软件版本：" + pInfo.versionName);
29       return info.toString();
30     }
31     @Override
32     public void onClick(View v) {
33       String text = tvText.getText().toString().trim();
34       String mail = tvMail.getText().toString().trim();
35       if (TextUtils.isEmpty(text)) {
36         Toast.makeText(UserMessage.this, "内容不能为空", Toast.LENGTH_SHORT).show();
37       } else {
38         new SendMessageTask().execute(new String[] { mail, text });
39 }
40     }
41     class SendMessageTask extends AsyncTask<String, Integer, String> {
42       protected String doInBackground(String... params) {
43         // 用POST方式提交
44         HttpPost httpRequest = new HttpPost("http://****.sinaapp.com/ReceiveMessage");
45         ArrayList<NameValuePair> list = new ArrayList<NameValuePair>();
46         list.add(new BasicNameValuePair("mail", params[0]));
47         list.add(new BasicNameValuePair("text", params[1]));
48         list.add(new BasicNameValuePair("info", getInfo()));
49         String result = "";
50         try {
51             httpRequest.setEntity(new UrlEncodedFormEntity(list, HTTP.UTF_8));
52             HttpResponse httpResponse = new DefaultHttpClient().execute(httpRequest);
53             // 获取返回的状态码
54             if (httpResponse.getStatusLine().getStatusCode() == 200) {
55               // 获取返回的信息
56               result = EntityUtils.toString(httpResponse.getEntity());
57             } else {
58               result = "发送失败";
59             }
60         } catch (Exception e) {
61             e.printStackTrace();
62             return "发送失败";
63         }
64         return result;
65       }
66       protected void onPreExecute() {
67         Toast.makeText(UserMessage.this, "正在发送中", Toast.LENGTH_SHORT).show();
68       }
69       protected void onPostExecute(String result) {
70         Toast.makeText(UserMessage.this, result, Toast.LENGTH_SHORT).show();
71       }
72     }
73 }

 1 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
 2       request.setCharacterEncoding("UTF-8");
 3       response.setContentType("text/html;charset=UTF-8");
 4       String mail = request.getParameter("mail"); // 用户提交的联系方式
 5       String text = request.getParameter("text"); // 用户反馈的正文
 6       String info = request.getParameter("info"); // 机型、应用版本号等信息
 7       String results = writeData(mail, text, info) ? "提交成功" : "提交失败";
 8       response.getWriter().write(results);    // 返回结果
 9     }
10     public boolean writeData(String mail, String text, String info) {
11       String driver = "com.mysql.jdbc.Driver";
12       String dbUrl = "jdbc:mysql://r.rdc.sae.sina.com.cn:3307/app_name";
13       Connection connection = null;
14       PreparedStatement ps = null;
15       try {
16         Class.forName(driver);// 加载
17         // 连接数据库
18         connection = DriverManager.getConnection(dbUrl, SaeUserInfo.getAccessKey(), SaeUserInfo.getSecretKey());
19         // 获取当前的时间，一起写入数据库
20         String date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
21         String sql = "insert into feedback (mail, text, time, info) values (?, ?, ?, ?)";
22         ps = connection.prepareStatement(sql);
23         ps.setString(1, mail);
24         ps.setString(2, text);
25         ps.setString(3, date);
26         ps.setString(4, info);
27         ps.execute();
28         return true;
29       } catch (SQLException e) {
30         e.printStackTrace();
31         return false;
32       } catch (ClassNotFoundException e) {
33         e.printStackTrace();
34         return false;
35       } finally {
36         try {
37             if (ps != null) {
38               ps.close();
39             }
40             if (connection != null) {
41               connection.close();
42             }
43         } catch (SQLException e) {
44             e.printStackTrace();
45         }
46       }
47     }