[Android] 從ASP.NET Web Service取得資料

2011-05-27

31412
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Android

開發環境：Android 2.2 + KSOAP2

因為Android本身沒有可以直接處理的API，網路上不少人推薦的就是使用KSOAP2，使用的方式也蠻簡單的，不過如果你需要傳自訂物件，那就需要自行實作序列化的部份～Web Service的撰寫部份這邊就跳過不提，先來看一下簡單範例。

先宣告一個SoapObject，裡面是我們要回報給Server的東西，接回來的時候則依據需要利用SoapPrimitive或是SoapObject來處理。

//傳遞參數
request.addProperty("username", "google");
request.addProperty("password", "1234");

SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);

HttpTransportSE androidHttpTransport = new HttpTransportSE("http://tempuri.org/webservice.asmx");

try
{
	androidHttpTransport.call(SOAP_ACTION, envelope);

	//若是單純的值，直接用SoapPrimitive接
	SoapPrimitive result = (SoapPrimitive) envelope.getResponse();
	
	//SoapObject result = (SoapObject) envelope.getResponse();

	boolean success = Boolean.parseBoolean(result.toString());

	if (!success)
	{
		Log.e("map", "登入失敗!!");
	}

}
catch (Exception e)
{
	Log.e("map", e.toString());
}

可是今天如果參數是物件陣列或是自訂類別之類的要怎麼辦咧？那你就需要實作KvmSerializable了！假設我們今天需要處理的是建立一堆人員，傳入參數的SOAP格式是：

	<User>
	  <Name></Name>
	  <Password></Password>
	</User>
	<User>
	  <Name></Name>
	  <Password></Password>
	</User>
</list>

從這邊可以看到有二個類別，一個是list，一個是User，二個都需要各別實作KvmSerializable

{
	public List<User> list = new ArrayList<User>();

	public Object getProperty(int arg0)
	{
		return list.get(arg0);
	}

	public int getPropertyCount()
	{
		return list.size();
	}

	public void getPropertyInfo(int arg0, Hashtable arg1, PropertyInfo arg2)
	{
		arg2.type = User.class;
		arg2.name = "User";
		arg2.setValue(list.get(arg0));
	}

	public void setProperty(int arg0, Object arg1)
	{
		list.add(arg0, (User) arg1);
	}

}

private class User implements KvmSerializable
{
	public String Name;
	public String Password;

	public User(String name, String password)
	{
		this.Name = name;
		this.Password = password;
	}

	public Object getProperty(int arg0)
	{
		switch (arg0)
		{
		case 0:
			return Name;
		case 1:
			return Password;
		}
	}

	public int getPropertyCount()
	{
		return 2;
	}

	public void getPropertyInfo(int arg0, Hashtable arg1, PropertyInfo arg2)
	{
		switch (arg0)
		{
		case 0:
			arg2.name = "Name";
			break;
		case 1:
			arg2.name = "Password";
			break;
		}

	}

	public void setProperty(int arg0, Object arg1)
	{
		switch (arg0)
		{
		case 0:
			Name = String.valueOf(arg1);
			break;
		case 1:
			Password = String.valueOf(arg1);
			break;
		}

	}

}

參數帶入方式：

PropertyInfo propertyInfo = new PropertyInfo();
propertyInfo.setName("list");
propertyInfo.setValue(list);
request.addProperty(propertyInfo);

看起來還算蠻簡單的吧？不過我當初找寫法可是找超久的～～～～Orz

Dotblogs 的標籤: android,ksoap2

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