通过HttpClient请求webService
由于服务端是用webService开发的,android要调用webService服务获取数据,这里采用的是通过HttpClient发送post请求,获取webService数据。
服务端使用的webService框架是axis2,请求数据之前,要封装一个xml格式,再通过post请求,获取服务端数据。
请求的xml格式如下所示:
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<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"xmlns:sam="http://user.service.xxx.com"> |
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<sam:userName>sunlightcs</sam:userName> |
其中:getUserInfo是方法名,userName是参数名,当然,还可以加多个参数。
下面的代码是向webService发送请求,获取数据,返回的数据是xml形式的,android只要解析xml数据,就可以获得想要的数据了。
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import java.io.IOException; |
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import java.io.OutputStream; |
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import java.io.OutputStreamWriter; |
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import java.io.Writer; |
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import org.apache.http.HttpResponse; |
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import org.apache.http.client.HttpClient; |
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import org.apache.http.client.methods.HttpPost; |
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import org.apache.http.entity.ContentProducer; |
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import org.apache.http.entity.EntityTemplate; |
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import org.apache.http.impl.client.DefaultHttpClient; |
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import org.apache.http.util.EntityUtils; |
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public class ClientTest { |
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public static void main(String[] args) { |
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ClientTest.httpClientPost(); |
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private static void httpClientPost() { |
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HttpClient client = new DefaultHttpClient(); |
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HttpPost post = newHttpPost("http://localhost:8080/xxx/services/userService"); |
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ContentProducer cp = new ContentProducer() { |
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public void writeTo(OutputStream outstream) throwsIOException { |
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Writer writer = new OutputStreamWriter(outstream,"UTF-8"); |
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String requestXml = getRequestXml(); |
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writer.write(requestXml); |
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post.setEntity(new EntityTemplate(cp)); |
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HttpResponse response = client.execute(post); |
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System.out.println(EntityUtils.toString(response.getEntity())); |
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} catch (IOException e) { |
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private static String getRequestXml(){ |
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StringBuilder sb = new StringBuilder("<soap:Envelope xmlns:soap=\"http://www.w3.org/2003/05/soap-envelope\" xmlns:sam=\"http://user.service.xxx.com\">"); |
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sb.append("<soap:Header/>"); |
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sb.append("<soap:Body>"); |
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sb.append("<sam:getUserInfo>"); |
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sb.append("<sam:userName>sunlightcs</sam:userName>"); |
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sb.append("</sam:getUserInfo>"); |
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sb.append("</soap:Body>"); |
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sb.append("</soap:Envelope>"); |
返回的数据格式如下:
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<?xml version=‘1.0‘ encoding=‘UTF-8‘?> |
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<soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"> |
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<ns:getUserInfoResponse xmlns:ns="http://user.service.xxx.com"> |
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<ns:return>xxx</ns:return> |
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</ns:getUserInfoResponse> |
其中,<ns:return>内的"xxx"可以是json数据,android只需解析标签<ns:return>里的json数据即可。
转载 http://www.juziku.com/wiki/3919.htm
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通过HttpClient请求webService
原文:http://www.cnblogs.com/chenying99/p/3746797.html