android通过C#的webservice与服务端进行数据通信(sqlserver)

这两天由于工作需要，学习了下android通过C#的webservice与服务端进行数据通信(sqlserver)。中间遇到几个问题，总结下，以备后期使用时注意。

Android端调用webservice的代码：

/**

* 上传设备状态信息信息

*

* @param data
打包好的数据

* @return 成功与否的相关字符串

*/

publicstatic StringuploadLocation(String data) {

METHOD_NAME =
"UploadLocation";

try {

SoapObject soapObject = new
SoapObject(NAMESPACE,
METHOD_NAME);

PropertyInfo propertyInfo = new
PropertyInfo();

propertyInfo.setName("LocationInfo");

propertyInfo.setValue(data);

soapObject.addProperty(propertyInfo);

SoapSerializationEnvelopeenvelope = new
SoapSerializationEnvelope(

SoapEnvelope.VER11);

envelope.dotNet =
true;

envelope.setOutputSoapObject(soapObject);

HttpTransportSE httpTranstation =new
HttpTransportSE(URL);

httpTranstation.debug
= true;

httpTranstation.call(NAMESPACE
+ METHOD_NAME, envelope);

Object result = (Object)envelope.getResponse().toString();

if (result !=
null) {

Log.i("WebserviceControlClass", result.toString());

return result.toString();

}

return "返回数据为空";

} catch (Exception e) {

e.printStackTrace();

Log.i("WebserviceControlClass",
"设备信息上传出现异常"
+ e.toString());

return "出现异常";

}

}

需要注意的地方:

1. propertyInfo.setName("LocationInfo");参数要与webservice方法中参数保持一致，否则获取不到数据。

2. envelope.dotNet
= true;我用的是dotwebservice
的协议，并且用的rpc方式所以，这里要用true.

3. httpTranstation.debug
= true;需要用调试模式，所以为true

因为与服务器之间进行通信，是一个耗时的操作，所最后不要再主线程中直接写访问代码。应该通过异步的方式，请求数据。

importandroid.os.AsyncTask;

/**
* Created by ZHao on 2016/4/15.
*/
public class WebServiceTask extends AsyncTask<String, Integer, String> {
public WebServiceTask() {
}

@Override
protected void onPreExecute() {
}

@Override
protected String doInBackground(String... params) {
return WebserviceControlClass.uploadLocation(params[0]);//这里返回webServices请求的值。
}

@Override
protected void onProgressUpdate(Integer... progress) {
}

@Override
protected void onPostExecute(String result) {
}
}

然后配合handler实现数据的收发。

/**
* 处理设备状态信息 上传和回掉结果
*/
public Handler handler = new Handler() {

@Override
public void handleMessage(Message msg) {

if (msg.what == 0) {
WebServiceTask task = new WebServiceTask();
String result = "";
try {
task.execute((String) msg.obj); //设置请求参数
result = task.get(5000, TimeUnit.MILLISECONDS); //获取返回值，设置超时时间。
} catch (InterruptedException e) {
e.printStackTrace();
result = "出现异常InterruptedException";
} catch (ExecutionException e) {
e.printStackTrace();
result = "出现异常ExecutionException";
} catch (TimeoutException e) {
e.printStackTrace();
result = "出现异常TimeoutException";
} catch (Exception e) {
result = "出现异常 Exception";
}
LogTools.i(TAG, result);
}
}
};

因为我需要将一个对象传递到服务端，android调用webservice传输复杂对象，该怎么做呢?

具体的实现方式如下。

首先是android具体操作代码,这里通过handler将locationData传递给异步类，进行数据上传。

dbDeviceStateClass = new DbDeviceStateClass();
dbDeviceStateClass.setDevice_id(CommonUtil.getDeviceId(this));//设备id
LogTools.i(TAG, CommonUtil.getDeviceId(this));
dbDeviceStateClass.setDevice_state_current_lat(String.valueOf(geoLat));//精度
dbDeviceStateClass.setDevice_state_current_lon(String.valueOf(geoLng));//纬度
dbDeviceStateClass.setDevice_city(location.getCity());//所在城市
dbDeviceStateClass.setDevice_province(location.getProvince());//所在省
locationData = ConvertForJsonModelControl.ConvertToJsonForDeviceState(dbDeviceStateClass);
Message msg = handler.obtainMessage();
msg.what = 0;
msg.obj = locationData;
handler.sendMessageDelayed(msg, 10);

需要注意的是，传递的对象，android和服务端需要保持一致，在android将数据打包成JSONObject，在服务端在解析出来，服务端代码在下面贴出。

**
* 将设备状态信息实体类转换为json对象
* @param dbDeviceStateClass
* @return
*/
public static String ConvertToJsonForDeviceState(DbDeviceStateClass dbDeviceStateClass) {
String jsonStr = "";
JSONObject modelJsonObject = new JSONObject();
try {
modelJsonObject.put("device_state_id", 0);
modelJsonObject.put("device_id", dbDeviceStateClass.getDevice_id());
modelJsonObject.put("user_name", dbDeviceStateClass.getUser_name());
modelJsonObject.put("device_city", dbDeviceStateClass.getDevice_city());
modelJsonObject.put("device_province", dbDeviceStateClass.getDevice_province());
modelJsonObject.put("device_location", dbDeviceStateClass.getDevice_location());
modelJsonObject.put("device_state_current_speed", dbDeviceStateClass.getDevice_state_current_speed());
modelJsonObject.put("device_state_update_time", dbDeviceStateClass.getDevice_state_update_time());
modelJsonObject.put("device_state_connect_net", dbDeviceStateClass.getDevice_state_connect_net());
modelJsonObject.put("device_state_current_lat", dbDeviceStateClass.getDevice_state_current_lat());
modelJsonObject.put("device_state_current_lon", dbDeviceStateClass.getDevice_state_current_lon());

jsonStr = modelJsonObject.toString();
} catch (JSONException e) {
e.printStackTrace();
}
return jsonStr;
}

接下来是服务端sebservice的具体方法代码,其中这个db_table_device_state
数据类要和android端的DbDeviceStateClass数据类保持一致，才能通过

device_state=(db_table_device_state)jsonSerializer.Deserialize(newJsonTextReader(strReader),typeof(db_table_device_state));将JSONObject数据解析出来。

/// <summary>
/// 保存设备状态到数据库
/// </summary>
/// <param name="LocationInfo"></param>
/// <returns></returns>
[WebMethod]
public string UploadLocation(string LocationInfo)
{
string strJson = "";
db_table_device_state device_state = null;
try {
using (var db = new hudProjecterDBEntities())
{
JsonSerializer jsonSerializer = new JsonSerializer();
StringReader strReader = new StringReader(LocationInfo);
device_state = (db_table_device_state)jsonSerializer.Deserialize(new JsonTextReader(strReader), typeof(db_table_device_state));

if (device_state != null)
{
var mdevice = db.db_table_device.FirstOrDefault(p => p.device_id == device_state.device_id);
strJson = "mdevice:" + mdevice;
if (mdevice != null)
{
db_table_device_state mdevicestate = new db_table_device_state();
mdevicestate.device_state_current_lat = device_state.device_state_current_lat;
mdevicestate.device_state_current_lon = device_state.device_state_current_lon;
mdevicestate.device_state_connect_net = device_state.device_state_connect_net;
mdevicestate.device_state_update_time = DateTime.Now;
mdevicestate.device_state_current_speed = device_state.device_state_current_speed;
db.db_table_device_state.Add(mdevicestate);
db.SaveChanges();
strJson = "[{\"Code\":\"200\",\"Message\":\"操作成功!\"}]";
}
}

}
}
catch (Exception ex)
{
strJson = "[{\"Code\":\"500\",\"Message\":\"服务器出错!\"}]";
}
return strJson;
}

好了，整体流程代码和需要注意的问题都在这里了。吼吼！！