通過HttpClient請求webService
由于服務端是用webService開發(fā)的，android要調用webService服務獲取數據，這里采用的是通過HttpClient發(fā)送post請求，獲取webService數據。
服務端使用的webService框架是axis2，請求數據之前，要封裝一個xml格式，再通過post請求，獲取服務端數據。
請求的xml格式如下所示：
1 | <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"xmlns:sam="http://user.service.xxx.com"> |
5 | <sam:userName>sunlightcs</sam:userName> |
其中：getUserInfo是方法名，userName是參數名，當然，還可以加多個參數。
下面的代碼是向webService發(fā)送請求，獲取數據，返回的數據是xml形式的，android只要解析xml數據，就可以獲得想要的數據了。
01 | import java.io.IOException; |
02 | import java.io.OutputStream; |
03 | import java.io.OutputStreamWriter; |
04 | import java.io.Writer; |
06 | import org.apache.http.HttpResponse; |
07 | import org.apache.http.client.HttpClient; |
08 | import org.apache.http.client.methods.HttpPost; |
09 | import org.apache.http.entity.ContentProducer; |
10 | import org.apache.http.entity.EntityTemplate; |
11 | import org.apache.http.impl.client.DefaultHttpClient; |
12 | import org.apache.http.util.EntityUtils; |
15 | public class ClientTest { |
17 | public static void main(String[] args) { |
18 | ClientTest.httpClientPost(); |
21 | private static void httpClientPost() { |
22 | HttpClient client = new DefaultHttpClient(); |
23 | HttpPost post = newHttpPost("http://localhost:8080/xxx/services/userService"); |
26 | ContentProducer cp = new ContentProducer() { |
27 | public void writeTo(OutputStream outstream) throwsIOException { |
28 | Writer writer = new OutputStreamWriter(outstream,"UTF-8"); |
33 | String requestXml = getRequestXml(); |
34 | writer.write(requestXml); |
39 | post.setEntity(new EntityTemplate(cp)); |
40 | HttpResponse response = client.execute(post); |
43 | System.out.println(EntityUtils.toString(response.getEntity())); |
44 | } catch (IOException e) { |
50 | private static String getRequestXml(){ |
51 | StringBuilder sb = new StringBuilder("<soap:Envelope xmlns:soap=\"http://www.w3.org/2003/05/soap-envelope\" xmlns:sam=\"http://user.service.xxx.com\">"); |
52 | sb.append("<soap:Header/>"); |
53 | sb.append("<soap:Body>"); |
54 | sb.append("<sam:getUserInfo>"); |
55 | sb.append("<sam:userName>sunlightcs</sam:userName>"); |
56 | sb.append("</sam:getUserInfo>"); |
57 | sb.append("</soap:Body>"); |
58 | sb.append("</soap:Envelope>"); |
返回的數據格式如下：
1 | <?xml version='1.0' encoding='UTF-8'?> |
2 | <soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"> |
4 | <ns:getUserInfoResponse xmlns:ns="http://user.service.xxx.com"> |
5 | <ns:return>xxx</ns:return> |
6 | </ns:getUserInfoResponse> |
其中，<ns:return>內的"xxx"可以是json數據，android只需解析標簽<ns:return>里的json數據即可。
轉載 http://www.juziku.com/wiki/3919.htm