前言：
轻量数据交互常用的json和xml.对应的通信协议分别是http和soap协议
xml 就是我们今天的主角，如果后台是java php写json很快捷，如果后台是.net那发布WebService比较多，因为WebService可以跨平台。
使用步骤：
一，android 开发工具导入jar:
image
链接：https://pan.baidu.com/s/1TYrffUO5pOeo50ErlpU2fw 密码：cyet
ksoap2-android-assembly-3.1.0-jar-with-dependencies.jar
二、封装好的class类，有注释：
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpResponseException;
import org.ksoap2.transport.HttpTransportSE;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.util.Iterator;
java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* Created by Administrator on 2017/9/15 0015.
*
*/
public class WebServiceUtils {
// 含有3个线程的线程池
private static final ExecutorService executorService = Executors
.newFixedThreadPool(3);
// 命名空间，默认是这个，可以更改，具体需要和后台人员确认
private static final String NAMESPACE = "http://tempuri.org/";
/**
*
* @param url
* WebService服务器地址
* @param methodName
* WebService的调用方法名
* @param properties
* WebService的参数
* @param webServiceCallBack
* 回调接口
*/
public static void callWebService(String url, final String methodName,
Map<String, String> properties,
final WebServiceCallBack webServiceCallBack) {
// 创建HttpTransportSE对象，传递WebService服务器地址
final HttpTransportSE httpTransportSE = new HttpTransportSE(url);
// 创建SoapObject对象
SoapObject soapObject = new SoapObject(NAMESPACE, methodName);
// SoapObject添加参数
if (properties != null) {
for (Iterator<Map.Entry<String, String>> it = properties.entrySet()
.iterator(); it.hasNext();) {
Map.Entry<String, String> entry = it.next();
soapObject.addProperty(entry.getKey(), entry.getValue());
}
}
// 实例化SoapSerializationEnvelope，传入WebService的SOAP协议的版本号
final SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(
SoapEnvelope.VER12);
// 设置是否调用的是.Net开发的WebService
soapEnvelope.setOutputSoapObject(soapObject);
soapEnvelope.dotNet = true;
httpTransportSE.debug = true;
// 用于子线程与主线程通信的Handler
final Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
// 将返回值回调到callBack的参数中
webServiceCallBack.callBack((SoapObject) msg.obj);
}
};
// 开启线程去访问WebService
executorService.submit(new Runnable() {
@Override
public void run() {
SoapObject resultSoapObject = null;
try {
httpTransportSE.call(NAMESPACE + methodName, soapEnvelope);
if (soapEnvelope.getResponse() != null) {
// 获取服务器响应返回的SoapObject
Log.i("获取服务器返回的表示",soapEnvelope.getResponse()+"");//测试是 成功返回true
resultSoapObject = (SoapObject) soapEnvelope.bodyIn;
}
} catch (HttpResponseException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
} finally {
// 将获取的消息利用Handler发送到主线程
mHandler.sendMessage(mHandler.obtainMessage(0,
resultSoapObject));
}
}
});
}
public interface WebServiceCallBack {
public void callBack(SoapObject result);
}
}
三，使用
使用说明，webservice接口图解：
image
String methodname = "login";//登陆接口方法
Map<String, String> map = new HashMap<>();
map.put("username", "qcapp");
map.put("password", "0000");
String url="";//接口地址对应的就是上图的地址栏url
WebServiceUtils.callWebService(url, methodname,
map, new WebServiceUtils.WebServiceCallBack() {
@Override
public void callBack(SoapObject result) {
Log.i("请求数据",result.getProperty(0));//这里就是接口返回的数据，
//后台可以自定义返回数据格式，这里返回json字符串，就可以正常解析了。
}
});