android 调用webservice 登录例子

一,android调用C#写的WebService,服务端返回的是一个xml格式的数据,只需要解析xml即可!!下面贴出源码

1.就一个Activity,主要实现的功能就是获取布局文件输入传给服务器的值

public class MainActivity extends Activity {
private EditText nameEditText;
private EditText passEditText;
private TextView textView;
private Button button;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
nameEditText = (EditText) this.findViewById(R.id.name);
passEditText = (EditText) this.findViewById(R.id.pass);
textView = (TextView) this.findViewById(R.id.textView);
button = (Button) findViewById(R.id.button);
}

public void query(View v){
String name = nameEditText.getText().toString();
String pass = passEditText.getText().toString();
try {

String address = AddressService.getAddress(name,pass);
String result = address.toString();
if (result.equals("true")) {
Toast.makeText(MainActivity.this, "跳转成功", 1).show();
}
textView.setText(address);
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(), R.string.error, 1).show();
}
}
}

2.main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>

<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/name"
android:hint="请填写用户名"
/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/pass"
android:hint="请填写密码"
/>

<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="query"
android:text="查询" />

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/textView"
/>
</LinearLayout>

3.服务器返回的数据也就是需要解析xml格式的数据(此段代码是webservice soap1.2服务器返回的xml格式的数据)

<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
<soap12:Body>
<loing xmlns="http://tempuri.org/">
<name>$name</name>
<pass>$pass</pass>
</loing>
</soap12:Body>
</soap12:Envelope>

4.使用pull方法解析xml数据(访问网络如果放在主线程里面会报NetWork错误,原因使android4.0以后不可以直接在主线程里面访问网络)

public class AddressService {
*/
public static String getAddress(String name,String pass) throws Exception{
String soap = readSoap();
soap = soap.replaceAll("\$name", name);
soap = soap.replaceAll("\$pass", pass);
byte[] entity = soap.getBytes();
String path = "###############";//API地址也就是webservice的访问地址
HttpURLConnection conn = (HttpURLConnection) new URL(path).openConnection();
conn.setConnectTimeout(5000);
conn.setRequestMethod("POST");
conn.setDoOutput(true);
conn.setRequestProperty("Content-Type", "application/soap+xml; charset=utf-8");
conn.setRequestProperty("Content-Length", String.valueOf(entity.length));
conn.getOutputStream().write(entity);
if(conn.getResponseCode() == 200){
return parseSOAP(conn.getInputStream());
}
return null;
}
private static String parseSOAP(InputStream xml)throws Exception{
XmlPullParser pullParser = Xml.newPullParser();
pullParser.setInput(xml, "UTF-8");
int event = pullParser.getEventType();
while(event != XmlPullParser.END_DOCUMENT){
switch (event) {
case XmlPullParser.START_TAG:
//此处是pull解析xml由于我的项目返回的是一个boolean值,"logigResult"(截图看)
if("loingResult".equals(pullParser.getName())){
return pullParser.nextText();
}
break;
}
event = pullParser.next();
}
return null;
}

private static String readSoap() throws Exception{
InputStream inStream = AddressService.class.getClassLoader().getResourceAsStream("soap12.xml");
byte[] data = StreamTool.read(inStream);
return new String(data);
}
}

5.工具类

public class StreamTool {
public static byte[] read(InputStream inStream) throws Exception{
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while( (len = inStream.read(buffer)) != -1){
outputStream.write(buffer, 0, len);
}
inStream.close();
return outputStream.toByteArray();
}

}

截图:
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