第 3 篇 Scrum 衝刺博客

各個成員今日完成的任務（若是完成的任務爲開發或測試任務，需給出對應的Github代碼簽入記錄截圖；若是完成的任務爲調研任務，需給出對應的調研總結博客連接；若是完成的任務爲學習技術任務，需給出學習總結博客連接）

陸大嶽彭霖：實現登陸功能

參考Java Web的編寫實現了登陸界面並登錄成功

import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONObject;

/**
 * 測試登陸Servlet
 *
 * @author Implementist
 */
public class LoginServlet extends HttpServlet {

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        // 設置響應內容類型  
        response.setContentType("text/html;charset=utf-8");
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");

        try (PrintWriter out = response.getWriter()) {

            //得到請求中傳來的用戶名和密碼
            String accountNumber = request.getParameter("AccountNumber").trim();
            String password = request.getParameter("Password").trim();

            //密碼驗證結果
            Boolean verifyResult = verifyLogin(accountNumber, password);

            Map<String, String> params = new HashMap<>();
            JSONObject jsonObject = new JSONObject();

            if (verifyResult) {
                params.put("Result", "success");
            } else {
                params.put("Result", "failed");
            }

            jsonObject.put("params", params);
            out.write(jsonObject.toString());
        }
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doPost(request, response);
    }

    /**
     * 驗證用戶名密碼是否正確
     *
     * @param userName
     * @param password
     */
    private Boolean verifyLogin(String userName, String password) {
        User user = UserDAO.queryUser(userName);

        //帳戶密碼驗證
        return null != user && password.equals(user.getPassword());
    }
}

public void LoginRequest(final String accountNumber, final String password) {
        //請求地址
        String url = "http://59.110.141.197:8080/MyFirstWebAPP/LoginServlet";    //注①
        String tag = "Login";    //注②

        //取得請求隊列
        RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());

        //防止重複請求，因此先取消tag標識的請求隊列
        requestQueue.cancelAll(tag);

        //建立StringRequest，定義字符串請求的請求方式爲POST(省略第一個參數會默認爲GET方式)
        final StringRequest request = new StringRequest(Request.Method.POST, url,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        try {
                            JSONObject jsonObject = (JSONObject) new JSONObject(response).get("params");  //注③
                            String result = jsonObject.getString("Result");  //注④
                            if (result.equals("success")) {  //注⑤
                                Toast.makeText(getApplicationContext(),"登陸成功",Toast.LENGTH_LONG).show();
                                Intent intent = null;
                                intent = new Intent(MainActivity.this,FunctionActivity.class);
                                intent.putExtra("Username", username.getText().toString());
                                startActivity(intent);
                            } else {
                                Toast.makeText(getApplicationContext(),"帳號或密碼錯誤",Toast.LENGTH_LONG).show();
                            }
                        } catch (JSONException e) {
                            Toast.makeText(getApplicationContext(),"鏈接失敗",Toast.LENGTH_LONG).show();
                            Log.e("TAG", e.getMessage(), e);
                        }
                    }
                }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                //作本身的響應錯誤操做，如Toast提示（「請稍後重試」等）
                Log.e("TAG", error.getMessage(), error);
            }
        }) {
            @Override
            protected Map<String, String> getParams() throws AuthFailureError {
                Map<String, String> params = new HashMap<>();
                params.put("AccountNumber", accountNumber);  //注⑥
                params.put("Password", password);
                return params;
            }
        };

        //設置Tag標籤
        request.setTag(tag);

        //將請求添加到隊列中
        requestQueue.add(request);
    }

各個成員遇到的問題

• 問題1：登陸失敗
• 解決方案：沒有配置LoginServlet的URL，應在web.xml中配置
  

<servlet>
        <servlet-name>LoginServlet</servlet-name>
        <servlet-class>chatask.LoginServlet</servlet-class>
    </servlet>

明日各個成員的任務安排

陸大嶽、彭霖：編寫簽到功能
胡智韜：編寫簽到頁面
牛浩遠：寫第四篇博客

•現階段團隊成員的貢獻任務量（h）分別是：

陸大嶽40
彭霖20
胡智韜0（未設計界面）
牛浩遠0（未寫博客）