java - 无法从java类创建实例

Question

我为MSN应用程序编写代码，并且该应用程序与服务器ASP.NET连接这段代码在我的计算机上运行完美，但是当我在其他计算机上运行这段代码时它在这一行给了我运行时错误

new SigninPerson(s1,s2);

错误:

could not find class 'com.example.hello.Signinperson' referenced from method
com.example.hello.MainActivity.GoToProfileActivity

代码:

public class MainActivity extends Activity {
    public final String URL="http://10.0.2.2:47102/ProjectTwo/Service.asmx";
    public final String NAMESPACE="http://tempuri.org/";
    public final String METHOD= "signin";
    public final String ACTION = "http://tempuri.org/signin";
    private EditText EditTextEmail;
    private EditText EditTextPass;
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    public void GoToSignupActivity (View V)
    {
        Intent SignupAct = new Intent("com.example.hello.SignupActivity");
        startActivity(Intent.createChooser(SignupAct, "Choose an Application"));
    }
    public void GoToProfileActivity (View V)
    {
        EditTextEmail = (EditText) findViewById(R.id.Edit_Text_Email);
        EditTextPass = (EditText) findViewById(R.id.Edit_Text_Pass);
        if (isEmptyEditText(EditTextEmail) | isEmptyEditText(EditTextPass)) 
        {
            showDialog(0);
        }
        else
        {
            String s1 = EditTextEmail.getText().toString().trim();
            String s2 = EditTextPass.getText().toString().trim();
            SigninPerson SIPerson = new SigninPerson(s1,s2);
            SoapObject Req = new SoapObject(NAMESPACE, METHOD);
            PropertyInfo p = new PropertyInfo();
            p.setName("SIPerson");
            p.setValue(SIPerson);
            p.setType(SIPerson.getClass());
            Req.addProperty(p);
            SoapSerializationEnvelope env = new SoapSerializationEnvelope(SoapSerializationEnvelope.VER11);
            env.dotNet = true;

            env.setOutputSoapObject(Req);
            env.addMapping(NAMESPACE, "SigninPerson", new SigninPerson().getClass());
            HttpTransportSE ahttp = new HttpTransportSE(URL);
            SoapObject Res = null;
            try
            {
                ahttp.call(ACTION, env);
                Res = (SoapObject) env.getResponse();
            }
            catch (Exception ex)
            {
                ex.printStackTrace();
            }
            if (Integer.parseInt(Res.getProperty(0).toString())==0)
            {
                showDialog(1);
            }
            else
            {
                SIPerson.Person_Id = Integer.parseInt(Res.getProperty(0).toString());
                SIPerson.F_Name = Res.getPropertyAsString(1).toString();
                SIPerson.L_Name = Res.getPropertyAsString(2).toString();
                SIPerson.E_Mail = Res.getPropertyAsString(3).toString();
                SIPerson.Password = Res.getPropertyAsString(4).toString();
                Intent ProfileAct = new Intent("com.example.hello.ProfileActivity");
                ProfileAct.putExtra("ReciveLogin", SIPerson);
                startActivity(Intent.createChooser(ProfileAct, "Choose an Application"));
            }
        }
    }
    public boolean isEmptyEditText (EditText ET)
    {
        boolean isEmpty = true;
        if (ET.getText().toString().trim().length() > 0)
        {
            isEmpty = false;
        }
        return isEmpty;
    }
    @Override
    protected Dialog onCreateDialog(int id)
    {
        switch (id)
        {
        case 0:
            Dialog EnterBothDialog = new Dialog(this);
            EnterBothDialog.setTitle("Please Enter Both E-Mail / Password");
            return EnterBothDialog;
        case 1:
            Dialog InvalidEmPass = new Dialog(this);
            InvalidEmPass.setTitle("Invalid Email / Password");
            return InvalidEmPass;
        }
        return null;
    }
}

这是 SigninPerson

public class SigninPerson implements KvmSerializable, Serializable {
    public int Person_Id;
    public String F_Name;
    public String L_Name;
    public String E_Mail;
    public String Password;
    public SigninPerson () 
    {
    }
    public SigninPerson (int id, String Fname, String Lname, String Email, String Pass)
    {
        Person_Id = id;
        F_Name = Fname;
        L_Name = Lname;
        E_Mail = Email;
        Password = Pass;
    }

    public SigninPerson (String Email, String Pass)
    {
        Person_Id = 0;
        F_Name = "";
        L_Name = "";
    }
    @Override
    public Object getProperty(int arg0) {
        // TODO Auto-generated method stub
        switch (arg0)
        {
        case 0:
            return Person_Id;
        case 1:
            return F_Name;
        case 2:
            return L_Name;
        case 3:
            return E_Mail;
        case 4:
            return Password;
        }
        return null;
    }

    @Override
    public int getPropertyCount() {
        // TODO Auto-generated method stub
        return 5;
    }

    @Override
    public void getPropertyInfo(int arg0, Hashtable arg1, PropertyInfo arg2) {
        // TODO Auto-generated method stub
        switch (arg0)
        {
        case 0:
            arg2.type = PropertyInfo.INTEGER_CLASS;
            arg2.name = "Person_Id";
            break;
        case 1:
            arg2.type = PropertyInfo.STRING_CLASS;
            arg2.name = "F_Name";
            break;
        case 2:
            arg2.type = PropertyInfo.STRING_CLASS;
            arg2.name = "L_Name";
            break;
        case 3:
            arg2.type = PropertyInfo.STRING_CLASS;
            arg2.name = "E_Mail";
            break;
        case 4:
            arg2.type = PropertyInfo.STRING_CLASS;
            arg2.name = "Password";
            break;
            default:break;
        }
    }

    @Override
    public void setProperty(int arg0, Object arg1) {
        // TODO Auto-generated method stub
        switch (arg0)
        {
        case 0:
            Person_Id = Integer.parseInt(arg1.toString());
            break;
        case 1:
            F_Name = arg1.toString();
            break;
        case 2:
            L_Name = arg1.toString();
            break;
        case 3:
            E_Mail = arg1.toString();
            break;
        case 4:
            Password = arg1.toString();
            break;
            default:break;
        }
    }

}

但是当我从 SigninPerson 和 Override 中删除实现时

public class SigninPerson{
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    public int Person_Id;
    public String F_Name;
    public String L_Name;
    public String E_Mail;
    public String Password;
    public SigninPerson () 
    {
    }
    public SigninPerson (int id, String Fname, String Lname, String Email, String Pass)
    {
        Person_Id = id;
        F_Name = Fname;
        L_Name = Lname;
        E_Mail = Email;
        Password = Pass;
    }

    public SigninPerson (String Email, String Pass)
    {
        Person_Id = 0;
        F_Name = "";
        L_Name = "";
    }
}

它是为SigninPerson创建的，并且不给我运行时间

我尝试了很长时间，但找不到任何错误

拜托，任何人都可以帮助我

因为我必须在早上发送申请

Answer 1

您应该更改此行:

SigninPerson SIPerson = null;
new SigninPerson(s1,s2);

至:

SigninPerson SIPerson = new SigninPerson(s1,s2);