Android模拟登录数据获取不了？无法传递？

Question

小白在做一个模拟登录教务系统的app，可是在post上遇到了问题，理想是如果登录成功了就跳转到logi_success的页面，然后将获得的html源码直接贴上（之后json解析），如果失败的话就跳转到login_fault页面，点击“返回”按钮返回到登录页面
然后我现在遇到的问题是：不知道是数据传递的问题还是其他？我点击登录没有反应，logcat也米有错误提示，不知道是不是获取不了数据还是怎样，希望各位大神指点下小白，谢谢
下面贴代码：
MainActivity.java：

public class MainActivity extends Activity {
    
    public static final int SHOW_RESPONSE=0;
    
    private EditText user_id;
    private EditText password;
    private EditText validate;
    private ImageView photo;
    private CheckBox keep;
    private Button next_botton;
    private Button login_botton;
    private Bitmap showVerifation;
    private boolean flag;
    
    // http://jwxt.jmpt.cn:8125/JspHelloWorld/authImg 另一个验证码地址
    // http://jwxt.jmpt.cn:8125/JspHelloWorld/authImg?now=Wed%20Jun%2001%202016%2022:42:07%20GMT+0800%20(%E4%B8%AD%E5%9B%BD%E6%A0%87%E5%87%86%E6%97%B6%E9%97%B4
    // 另一个验证码地址
    String VERIFATIONURL = "http://jwxt.jmpt.cn:8125/JspHelloWorld/authImg?now=Wed%20Jun%2001%202016%2022:42:07%20GMT+0800%20(%E4%B8%AD%E5%9B%BD%E6%A0%87%E5%87%86%E6%97%B6%E9%97%B4";// 验证码地址
    String LOGINURL = "http://jwxt.jmpt.cn:8125/JspHelloWorld/login.jsp";// 登录页面
    String MAINBODYHTML = "";// 获得个人主界面的HTML
    
    

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

        user_id = (EditText) findViewById(R.id.user_id);
        password = (EditText) findViewById(R.id.password);
        validate = (EditText) findViewById(R.id.validate);
        login_botton = (Button) findViewById(R.id.login_botton);
        next_botton = (Button) findViewById(R.id.next_botton);
        keep = (CheckBox) findViewById(R.id.keep);
        photo = (ImageView) findViewById(R.id.photo);

        login_botton.setOnClickListener(onClickListener);// 将EditText里的信息提交按钮
        next_botton.setOnClickListener(onClickListener);// 刷选验证码按钮
        
        //initView();
    
    }

    View.OnClickListener onClickListener = new View.OnClickListener() {
        private boolean flase;

        @Override
        public void onClick(View v) {
            switch (v.getId()) {
            case R.id.login_botton:
                
                if (equals()) {

                    String user_id1 = (String) user_id.getEditableText()
                            .toString();
                    String password1 = (String) password.getEditableText()
                            .toString();
                    String validate1 = (String) validate.getEditableText()
                            .toString();
                    DoLogin(user_id1, password1, validate1);
//                     Intent intent = new Intent(MainActivity.this,login_fault.class);
//                     startActivity(intent);
       
                }

                
                break;
            case R.id.next_botton:
                DoGetVerifation();
                break;
            }
        }
        private boolean equals() {
            // TODO Auto-generated method stub
            if (user_id.getEditableText().toString().equals("")) {
                Toast.makeText(MainActivity.this, "用户名不能为空", Toast.LENGTH_SHORT)
                        .show();
                flag = flase;
            } else if (password.getEditableText().toString().equals("")) {
                Toast.makeText(MainActivity.this, "密码不能为空", Toast.LENGTH_SHORT)
                        .show();
                flag = flase;
            } else if (validate.getEditableText().toString().equals("")) {
                Toast.makeText(MainActivity.this, "验证码不能为空", Toast.LENGTH_SHORT)
                        .show();
                flag = flase;
            } else {
                flag = true;
     }
        return flag;
        }

        private void DoLogin(final String user_id1, final String password1,
                final String validate1) {
            // TODO Auto-generated method stub
            new Thread(new Runnable() {
                @Override
                public void run() {
                    DefaultHttpClient httpClient = new DefaultHttpClient();
                    HttpResponse httpResponse;
                    HttpPost httpRequest = new HttpPost(LOGINURL);

                    // 设置post参数
                    List<NameValuePair> params = new ArrayList<NameValuePair>();
                    params.add(new BasicNameValuePair("actionId", "login"));
                    params.add(new BasicNameValuePair("actionmi", "m10"));
                    params.add(new BasicNameValuePair("osname", "Win7,?豸:pc"));
                    params.add(new BasicNameValuePair("pageId", "000101"));
                    params.add(new BasicNameValuePair("Yhm", "ѧ&nbsp;&nbsp;?ţ?"));
                    params.add(new BasicNameValuePair("radiobutton", "student"));
                    params.add(new BasicNameValuePair("password", password1));
                    params.add(new BasicNameValuePair("validate", validate1));
                    params.add(new BasicNameValuePair("username", user_id1));

                    httpRequest.setHeader("Cookie",
                            "JSESSIONID=44983DD250A48E966B95381E2C472C29");
                    httpRequest.setHeader("Host", "jwxt.jmpt.cn:8125");
                    httpRequest.setHeader("Referer",
                            "http://jwxt.jmpt.cn:8125/JspHelloWorld/login.jsp");
                    httpRequest
                            .setHeader(
                                    "User-Agent",
                                    "Mozilla/5.0 (MSIE 9.0; Windows NT 6.1; WOW64; Trident/7.0; BOIE9;ZHCN; rv:11.0) like Gecko");

                    try {
                        // 发出HTTP request
                        httpRequest.setEntity(new UrlEncodedFormEntity(params,
                                "GBK"));
                        // 取得HTTP response
                        httpResponse = httpClient.execute(httpRequest); // 执行
                        // 若状态码为200 ok
                        if (httpResponse.getStatusLine().getStatusCode() == 200) { // 返回值正常
                            HttpEntity entity=httpResponse.getEntity();
                            String response=EntityUtils.toString(entity,"GBK");
                            Message message=new Message();
                            message.what=SHOW_RESPONSE;
                            message.obj=response.toString();        
                            Handler handler=new Handler(){
                                public void handleMessage (Message msg){
                                switch(msg.what){
                                case SHOW_RESPONSE:
                                    String response=(String)msg.obj;
                                     Intent intent = new Intent(MainActivity.this,login_success.class);
                                     startActivity(intent);
                                 }
                                }
                            };
                            handler.sendMessage(message);
                            
                        } else {
                            //Toast.makeText(MainActivity.this,"dsadsa",Toast.LENGTH_SHORT).show();
                             Intent intent = new Intent(MainActivity.this,login_fault.class);
                             startActivity(intent);
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    

                }
            }).start();
        }

        private void DoGetVerifation() {
            // TODO Auto-generated method stub
            final Handler handler = new Handler() {
                @SuppressWarnings("deprecation")
                public void handleMessage(android.os.Message msg) {
                    if (msg.arg1 == 1) {
                        Bitmap bitmap = (Bitmap) msg.obj;
                        Drawable pic = new BitmapDrawable(bitmap);
                        // loginpic.setImageBitmap(bitmap);
                        photo.setBackgroundDrawable(pic);
                    }
                };
            };
            final String urlString = "http://jwxt.jmpt.cn:8125/JspHelloWorld/authImg?now=Wed%20Jun%2001%202016%2022:42:07%20GMT+0800%20(%E4%B8%AD%E5%9B%BD%E6%A0%87%E5%87%86%E6%97%B6%E9%97%B4";
            new Thread() {
                public void run() {
                    Message message = handler.obtainMessage();
                    message.obj = HttpBitmap.getHttpBitmap(urlString);
                    message.arg1 = 1;
                    handler.sendMessage(message);
                };

            }.start();

        }
    };
}


  

点击登录按钮的话logcat只有这些信息

对了，cookie的值不变，我也不知道为什么，反正用httpwatch查看的都是这个值

Answer 1

在Handler handler=new Handler(){...}; 前加上Looper.prepare();结束之后加上Looper.loop();
或者直接Handler handler = new Handler(Looper.getMainLooper()){...};

Answer 2

不知道你怎么抓的网页数据，一般用不着这么多post,还有就是你这个cookie设置的似乎没什么意义啊。
当然最重要的还是对于网站登录过程本身的分析，这个准确的话也就搞定大半了。
Httpclient也不怎么好使，上okhttp吧，搞个工具类，这些操作都写进去，用接口完成回调，要不这activity到最后自己都看不明白了..