我是 Android 开发新手，需要连接到服务器并获取 Android 活动的信息或值。请提供一个工作示例，说明如何从 Android 活动调用/使用 java Web 服务。
这是我到目前为止所做的。
创建了一个 Android 活动。 在 Eclipse 中创建的类计算给定半径的区域并返回值。 为上述类创建了一个 Web 服务，并使用 WebService Explorer 进行了测试，它可以工作。 Web Service 使用端口 11144 进行请求，使用端口 8080 进行响应。
我的问题是： 我是使用 wsdl 还是使用 Java 客户端作为存根？ 如果我需要使用存根，它是否像任何其他 java 类一样只是另一个重要？
提前感谢您的帮助。
【问题讨论】：
标签： android service android-activity web wsdl
这是一个“如何从 Android Activity 调用/使用 Web 服务”的工作示例
那是联系服务的班级：
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.util.Log;
public class WebService extends SoapObject {
// a remplacer par les bonnes informations
private static final String SOAP_ACTION = "http://tempuri.org/GetChampionRotationWeek";
// a remplacer par les bonnes informations
private static final String METHOD_NAME = "GetChampionRotationWeek";
// a remplacer par les bonnes informations
private static final String NAMESPACE = "http://tempuri.org/";
// a remplacer par les bonnes informations
private static final String URL = "http://www.thinkdroid.eu/WebService1.asmx";
public WebServiceLogin(String namespace, String name) {
super(namespace, name);
}
public String getResult(){
String resultat = "";
try {
SoapObject requete = new SoapObject(NAMESPACE, METHOD_NAME);
//Soap version 1.1
SoapSerializationEnvelope enveloppe = new SoapSerializationEnvelope(
SoapEnvelope.VER11);
// Codé en dotNet ou non ?
enveloppe.dotNet = true;
enveloppe.setOutputSoapObject(requete);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, enveloppe);
resultat = enveloppe.getResponse().toString();
} catch (Exception e) {
Log.e("Exception", "" + e);
e.printStackTrace();
}
return resultat;
}
}
这就是实例化和使用这个类的方法：
try {
WebService serviceConnexion = new WebService("http://tempuri.org/", "WebService1Soap");
result = serviceConnexion.getResult();
} catch (Exception e) {
e.printStackTrace();
}
我使用这个库来联系服务： http://code.google.com/p/ksoap2-android/
来源：http://www.thinkdroid.eu/?p=192（法国网站）
希望对你有帮助。
【讨论】：
您可以使用以下所有方法在android中调用Web服务
public String postData(String result, JSONObject obj) {
// Create a new HttpClient and Post Header
String InsertTransactionResult = null;
HttpClient httpclient = new DefaultHttpClient();
HttpParams myParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(myParams, 1000);
HttpConnectionParams.setSoTimeout(myParams, 1000);
try {
HttpPost httppost = new HttpPost(result.toString());
httppost.setHeader("Content-type", "application/json");
StringEntity se = new StringEntity(obj.toString());
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
"application/json"));
httppost.setEntity(se);
HttpResponse response = httpclient.execute(httppost);
InsertTransactionResult = EntityUtils
.toString(response.getEntity());
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
return InsertTransactionResult;
}
public String putData(String result, JSONObject obj) {
// Create a new HttpClient and Put Header
String UpdateTransactionResult = null;
HttpClient httpclient = new DefaultHttpClient();
HttpParams myParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(myParams, 10000);
HttpConnectionParams.setSoTimeout(myParams, 10000);
try {
HttpPut httpPut = new HttpPut(result.toString());
httpPut.setHeader("Content-type", "application/json");
StringEntity se = new StringEntity(obj.toString());
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
"application/json"));
httpPut.setEntity(se);
HttpResponse response = httpclient.execute(httpPut);
UpdateTransactionResult = EntityUtils
.toString(response.getEntity());
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
return UpdateTransactionResult;
}
public String deleteRecord(String result) {
// Create a new HttpClient and Get Header
StringBuilder builder = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpDelete httpDelete = new HttpDelete(result.toString());
try {
HttpParams myParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(myParams, 10000);
HttpConnectionParams.setSoTimeout(myParams, 0);
HttpResponse response = client.execute(httpDelete);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
System.out.println(response.toString());
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(
new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
builder.append(line);
}
} else {
Log.e(LoginActivity.class.toString(), "Failed to Authenticate");
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
System.out.println(e);
}
return builder.toString();
}
public String getMethod(String result) {
// Create a new HttpClient and Get Header
StringBuilder builder = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(result.toString());
try {
HttpParams myParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(myParams, 0);
HttpConnectionParams.setSoTimeout(myParams, 0);
HttpResponse response = client.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
System.out.println(response.toString());
if (statusCode == 200) {
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(
new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
builder.append(line);
}
} else {
Log.e(LoginActivity.class.toString(), "Failed to Authenticate");
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
return builder.toString();
}
【讨论】：