如何使用android代码正确登录到web
请帮助我纠正我的错误,即如何正确编码将登录到web的android活动,并且当它成功登录时,它可以开始查看该web门户的内容 这是我未完成的代码,请纠正我的错误。提前谢谢如何使用android代码正确登录到web,android,json,web-services,login,android-asynctask,Android,Json,Web Services,Login,Android Asynctask,请帮助我纠正我的错误,即如何正确编码将登录到web的android活动,并且当它成功登录时,它可以开始查看该web门户的内容 这是我未完成的代码,请纠正我的错误。提前谢谢 package com.example.weblogin; import java.util.ArrayList; import java.util.List; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameVa
package com.example.weblogin;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
public class LoginActivity extends Activity implements OnClickListener {
private ProgressDialog pDialog; // Progress Dialog
private static final String LOGIN_URL = "http://vo.aimglobalinc.com/control/con_login.asp";
JSONParser jsonParser = new JSONParser(); // JSON parser class
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
private EditText user, pass;
private Button mSubmit, mRegister;
@Override
protected void onCreate(Bundle savedInstanceState) {
//requestWindowFeature(Window.FEATURE_NO_TITLE);
//getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
//WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
// get intent data
Intent i1 = getIntent();
// Selected image id
i1.getExtras().getInt("login");
setResult(RESULT_OK, i1);
//setup input fields
user = (EditText)findViewById(R.id.txt_username);
pass = (EditText)findViewById(R.id.txt_password);
//setup buttons
mSubmit = (Button)findViewById(R.id.btn_login);
mRegister = (Button)findViewById(R.id.btn_register);
//register listeners
mSubmit.setOnClickListener(this);
mRegister.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_login:
new AttemptLogin().execute();
break;
case R.id.btn_register:
//Intent i = new Intent(this, RegisterActivity.class);
//startActivity(i);
break;
default:
break;
}
}
class AttemptLogin extends AsyncTask<String, String, String> {
//three methods get called, first preExecture, then do in background, and once do
//in back ground is completed, the onPost execture method will be called.
/**
* Before starting background thread Show Progress Dialog
* */
boolean failure = false;
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(LoginActivity.this);
pDialog.setMessage("Attempting login...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
// Check for success tag
int success;
String username = user.getText().toString();
String password = pass.getText().toString();
try {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("uname", username));
params.add(new BasicNameValuePair("pword", password));
Log.d("request!", "starting");
// getting product details by making HTTP request
JSONObject json = jsonParser.makeHttpRequest(
LOGIN_URL, "POST", params);
// check your log for json response
Log.d("Login attempt", json.toString());
// json success tag
success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Log.d("Login Successful!", json.toString());
//Toast.makeText(LoginActivity.this, "Login Successful!", Toast.LENGTH_LONG).show();
//Intent i = new Intent(LoginActivity.this, PortalContents.class);
finish();
//startActivity(i);
return json.getString(TAG_MESSAGE);
}else{
Log.d("Login Failure!", json.getString(TAG_MESSAGE));
//Toast.makeText(LoginActivity.this, "Login Fail!", Toast.LENGTH_LONG).show();
return json.getString(TAG_MESSAGE);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once product deleted
pDialog.dismiss();
if (file_url != null){
Toast.makeText(getApplicationContext(), file_url, Toast.LENGTH_LONG).show();
}
}
}
}
package com.example.weblogin;
导入java.util.ArrayList;
导入java.util.List;
导入org.apache.http.NameValuePair;
导入org.apache.http.message.BasicNameValuePair;
公共类LoginActivity扩展了活动实现OnClickListener{
private ProgressDialog pDialog;//进度对话框
私有静态最终字符串登录\u URL=”http://vo.aimglobalinc.com/control/con_login.asp";
JSONParser JSONParser=新的JSONParser();//JSON解析器类
私有静态最终字符串标记_SUCCESS=“SUCCESS”;
私有静态最终字符串标记_MESSAGE=“MESSAGE”;
私人编辑文本用户,通过;
私人按钮mSubmit,mRegister;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
//requestWindowFeature(窗口。功能\u无\u标题);
//getWindow().setFlags(WindowManager.LayoutParams.FLAG_全屏,
//WindowManager.LayoutParams.FLAG(全屏);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u登录);
//获取意图数据
Intent i1=getIntent();
//所选图像id
i1.getExtras().getInt(“登录”);
设置结果(结果_正常,i1);
//设置输入字段
user=(EditText)findViewById(R.id.txt\u用户名);
pass=(EditText)findViewById(R.id.txt\u密码);
//设置按钮
mSubmit=(按钮)findviewbyd(R.id.btn\u登录);
mRegister=(按钮)findviewbyd(R.id.btn_寄存器);
//注册侦听器
mSubmit.setOnClickListener(这个);
mRegister.setOnClickListener(此);
}
@凌驾
公共void onClick(视图v){
开关(v.getId()){
案例R.id.btn\u登录:
新建AttemptLogin().execute();
打破
案例R.id.btn\U寄存器:
//意向i=新意向(此为RegisterActivity.class);
//星触觉(i);
打破
违约:
打破
}
}
类AttemptLogin扩展了AsyncTask{
//调用三个方法,首先是preexecute,然后在后台执行,一次执行
//在后台完成后,将调用onPost Execute方法。
/**
*在启动后台线程显示进度对话框之前
* */
布尔失败=假;
@凌驾
受保护的void onPreExecute(){
super.onPreExecute();
pDialog=新建进度对话框(LoginActivity.this);
setMessage(“正在尝试登录…”);
pDialog.setUndeterminate(假);
pDialog.setCancelable(真);
pDialog.show();
}
@凌驾
受保护的字符串doInBackground(字符串…args){
//TODO自动生成的方法存根
//检查成功标签
成功;
字符串username=user.getText().toString();
字符串密码=pass.getText().toString();
试一试{
//建筑参数
List params=new ArrayList();
添加(新的BasicNameValuePair(“uname”,用户名));
参数add(新的BasicNameValuePair(“pword”,密码));
Log.d(“请求!”,“启动”);
//通过发出HTTP请求获取产品详细信息
JSONObject json=jsonParser.makeHttpRequest(
登录URL,“POST”,参数);
//检查日志中的json响应
Log.d(“登录尝试”,json.toString());
//json成功标记
success=json.getInt(TAG_success);
如果(成功==1){
Log.d(“登录成功!”,json.toString();
//Toast.makeText(LoginActivity.this,“登录成功!”,Toast.LENGTH_LONG.show();
//意图i=新意图(LoginActivity.this、PortalContents.class);
完成();
//星触觉(i);
返回json.getString(TAG_消息);
}否则{
Log.d(“登录失败!”,json.getString(TAG_MESSAGE));
//Toast.makeText(LoginActivity.this,“登录失败!”,Toast.LENGTH_LONG.show();
返回json.getString(TAG_消息);
}
}捕获(JSONException e){
e、 printStackTrace();
}
返回null;
}
/**
*完成后台任务后,关闭“进度”对话框
* **/
受保护的void onPostExecute(字符串文件\u url){
//删除产品后关闭对话框
pDialog.disclose();
如果(文件url!=null){
Toast.makeText(getApplicationContext(),file_url,Toast.LENGTH_LONG.show();
}
}
}
}
如果登录凭据正确,您需要配置服务器(例如:-本地IIS服务器)以返回响应
我的登录任务代码:-
private class GetLogin extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
response = null;
try {
progressDialog = new ProgressDialog(Login.this, android.R.style.Theme_Holo_Light_Dialog);
progressDialog.setMessage("Please wait...");
progressDialog.setOnCancelListener(new OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
if(getLogin !=null && getLogin.getStatus() != AsyncTask.Status.FINISHED){
getLogin.cancel(true);
}
}
});
progressDialog.show();
} catch (Exception e) {
}
}
protected Void doInBackground(Void... params) {
try{
String deviceId = CommonString.deviceId;
String buildVesrsion = CommonString.buildVersion;
HashMap<String, String> map = new HashMap<String, String>();
map.put("email", edtEmail.getText().toString().trim());
map.put("password", edtPassword.getText().toString().trim());
map.put("deviceID", deviceId);
map.put("buildV", buildVesrsion);
map.put("Platform", CommonString.en);
map.put("deviceTokenId", regId);
response = CommonFunction.PostRequest("login", map);
}catch(Exception e){
response = null;
}
return null;
}
@Override
protected void onCancelled() {
}
@Override
protected void onPostExecute(Void result) {
if(response != null && !response.equals("")){
parseResponse(response);
}else{
if(progressDialog != null & progressDialog.isShowing()){
progressDialog.dismiss();
}
Toast.makeText(getApplicationContext(), CommonString.NO_NETWORK, Toast.LENGTH_SHORT).show();
}
}
}
你可以这样做。你正在尝试实现一个web浏览器?你能把这个范围缩小一点吗,你面临的具体问题是什么?@Satellite SD:不,我实际上是在为我们公司的网页开发一个Android应用程序。我们的网页是我们有我们的用户名和密码,我们的网页,我想做登录使用这个安卓应用程序,我正在做。我无法访问我们公司的服务器。我只能读t的“反复试验”
private void parseResponse(String responce) {
try {
JSONObject object = new JSONObject(responce);
rCode = Integer.parseInt(object.getString("rcode"));
switch (rCode) {
case 100: // If respose is true do here
isLoginCorrect = true;
JSONObject data = object.getJSONObject("data");
JSONObject userInfo = data.getJSONObject("userInfo");
break;
case 101: // Different errors based on the errors you have defined in your server
isLoginCorrect = false;
message = object.getString("msg");
handler.sendEmptyMessage(0);
break;
case 102:
isLoginCorrect = false;
message = object.getString("msg");
Toast.makeText(Login.this.getApplicationContext(), "There seems to be some trouble with your account, please login again.", Toast.LENGTH_SHORT).show();
handler.sendEmptyMessage(0);
break;
case 103:
isLoginCorrect = false;
message = object.getString("msg");
handler.sendEmptyMessage(0);
break;
case 104:
isLoginCorrect = false;
message = object.getString("msg");
handler.sendEmptyMessage(0);
break;
case 105:
isLoginCorrect = false;
message = object.getString("msg");
handler.sendEmptyMessage(0);
break;
default:
break;
}
} catch (Exception e) {
e.printStackTrace();
isLoginCorrect = false;
}
}