public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    private static final String TAG ="MainActivity" ;
    //使用者名稱
    private EditText mEtUsername;
    //密碼
    private EditText mEtPwd;
    //登入按鍵
    private Button mBtnLogin;
    private TextView mTvResult;

    private
 
 String url ="http://192.168.1.102:8080/Login/login";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initView();
        initListener();
    }

    /**
     * 初始化元件
     */
    private
 
 void initView() {

        mEtUsername = (EditText) findViewById(R.id.login_et_name);
        mEtPwd = (EditText) findViewById(R.id.login_et_pwd);

        mBtnLogin = (Button) findViewById(R.id.login_btn_login);


        mTvResult = (TextView) findViewById(R.id.login_tv_result);

    }

    /**
     * 設定監聽器
     
 
*/
    private void initListener() {

        mBtnLogin.setOnClickListener(this);


    }

    /*
    單擊事件監聽
     */
    @Override
    public void onClick(View v) {
        if(v==mBtnLogin){
            login();
        }
    }

    /*
    登入
     */
    private void login() {

        final String username = mEtUsername.getText().toString().trim();
        final String password = mEtPwd.getText().toString().trim();


        if(TextUtils.isEmpty(username) || TextUtils.isEmpty(password)){

            Toast.makeText(MainActivity.this, "使用者名稱或者密碼不能為空", Toast.LENGTH_SHORT).show();
            return;
        }

        new Thread(){
            @Override
            public void run() {

                    HttpUtils httpUtils = new HttpUtils();
                    //轉換為JSON
                    String user = httpUtils.bolwingJson(username, password);



                //String user ="{'username':" + username + ","+"'password':"+password+"}";

                Log.d(TAG, "user:" + user);

                try {
                    final String result = httpUtils.login(url, user);
                    Log.d(TAG, "結果:" + result);
                    //更新UI,在UI執行緒中
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            if("SUCCESS".equals(result)){

                                mTvResult.setText("登入成功");

                            }else{
                                mTvResult.setText("登入失敗");
                            }
                        }
                    });
                } catch (IOException e) {
                    e.printStackTrace();
                }




            }
        }.start();


    }
}