[英]ID session management in Android for web-services
我正在創建一個與SOAP Web服務交互以從數據庫獲取數據的應用程序。 當用戶通過Web服務傳遞用戶名和密碼成功登錄后,將為該用戶提供唯一的會話ID。 稍后在其他活動中將需要此會話ID來調用Web服務方法。 我的問題是,如何在需要時將該會話ID傳遞給下一個活動,並保持該狀態直到用戶注銷。 例如:這是一個Web服務方法,需要傳遞SID(會話ID),我如何獲取登錄時提供給我的會話ID,並將其用於此方法
-<element name="createAttachment">
-<complexType>
-<sequence>
<element name="sid" type="xsd:int"/>
<element name="repositoryHandle" type="xsd:string"/>
<element name="objectHandle" type="xsd:string"/>
<element name="description" type="xsd:string"/>
<element name="fileName" type="xsd:string"/>
</sequence>
</complexType>
</element>
那就是我的login.java。 我可以成功登錄並獲得會話ID
public class Login extends ActionBarActivity implements OnClickListener {
private static final String NAMESPACE = "***";
private static final String URL = ***";
private static final String METHOD_NAME = "login";
private static final String SOAP_ACTION = NAMESPACE + "/" + METHOD_NAME; //in wsdl it's nothing
EditText usersusername, userspassword;
Button LB;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
LB = (Button) findViewById(R.id.loginbutton);
LB.setOnClickListener(this);
usersusername = (EditText)findViewById(R.id.editusername);
userspassword = (EditText)findViewById(R.id.editpassword);
}
public void onClick(View view){
switch (view.getId()){
case R.id.loginbutton:
new LongOperation().execute("");
break;
}
}
private class LongOperation extends AsyncTask<String, Void, String>{
@Override
protected String doInBackground(String... params) {
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
usersusername = (EditText)findViewById(R.id.editusername);
userspassword = (EditText)findViewById(R.id.editpassword);
String user_Name = usersusername.getText().toString();
String user_Password = userspassword.getText().toString();
PropertyInfo unameProp =new PropertyInfo();
unameProp.setName("userName");//Define the variable name in the web service method
unameProp.setValue(user_Name);//set value for userName variable
unameProp.setType(String.class);//Define the type of the variable
request.addProperty("username",user_Name);//Pass properties to the variable
PropertyInfo passwordProp =new PropertyInfo();
passwordProp.setName("password");
passwordProp.setValue(user_Password);
passwordProp.setType(String.class);
request.addProperty(passwordProp);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); // Declare the version of the soap request
envelope.setOutputSoapObject(request);
try {
HttpTransportSE aht = new HttpTransportSE(URL);
aht.call(SOAP_ACTION, envelope); //this is the actual part that calls the web service
SoapPrimitive result =(SoapPrimitive)envelope.getResponse();
String Something = result.toString(); // Result string
System.out.println(Something);
if (!TextUtils.isEmpty(Something))
{
Intent intent = new Intent(Login.this,Dashboard.class);
intent.putExtra("username",usersusername.getText().toString());
startActivity(intent);
}
}
catch (Exception e){
e.printStackTrace();
}
return null;
} // closing bracket of do in background
@Override
// show dialog and prepare the fields for retry
}
}
} // closing bracket of long operation
}
您可以將sessionID保存在共享首選項中,並在注銷時從共享首選項中刪除sessionID。 請參考此鏈接以獲取示例
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