Android访问webservice

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Android开发中很多时候要用到webservice，这样可以方便的访问网络资源，这里提供几个网站：

阿里巴巴的FastJson介绍：http://code.alibabatech.com/wiki/display/FastJSON/Home

适合手机的WebService的SDK：Ksoap2：https://code.google.com/archive/p/ksoap2-android/wikis/HowToUse.wiki

获取WebService：http://www.webxml.com.cn/zh_cn/web_services.aspx

这里测试使用天气接口：http://www.webxml.com.cn/WebServices/WeatherWebService.asmx

一、使用Ksoap2：

工具类：WebServiceUtils.java（这个工具类以后就可以直接拿来使用了）

package com.mfc.UrlUtils;import java.io.IOException;import java.util.HashMap;import java.util.Iterator;import java.util.Map;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import org.ksoap2.SoapEnvelope;import org.ksoap2.serialization.SoapObject;import org.ksoap2.serialization.SoapSerializationEnvelope;import org.ksoap2.transport.HttpTransportSE;import org.xmlpull.v1.XmlPullParserException;import android.os.Handler;import android.os.Message;/* * 访问WebService的工具类 * 2017年8月10日13:05:29 * */public class WebServiceUtils {//webservice路径public static final String WEB_SERVICE_URL = "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx";//命名空间//这个命名空间：找到webservice的网页，点击WSDL就会看到xml，里面有一个//<wsdl:definitions targetNamespace="http://WebXml.com.cn/">//就是这个命名空间private static final String NAMESPACE = "http://WebXml.com.cn/";//含有三个线程的线程池private static final ExecutorService executorService = Executors.newFixedThreadPool(3);/** * * @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,  HashMap<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,这里通过传过来一个HashMap来设置参数if(properties != null){Iterator<Map.Entry<String, String>> it = properties.entrySet().iterator();while(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.VER11);//设置是否调用的是.Net开发的WebServicesoapEnvelope.setOutputSoapObject(soapObject);soapEnvelope.dotNet = true;httpTransportSE.debug = true;//用于子线程与主线程通信的Handlerfinal Handler handler = new Handler(){@Overridepublic void handleMessage(Message msg) {super.handleMessage(msg);//将返回值回调到callBack的参数中webServiceCallBack.callBack((SoapObject)msg.obj);}};//开启线程访问WebServiceexecutorService.submit(new Runnable() {@Overridepublic 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SoapObjectresultSoapObject = (SoapObject) soapEnvelope.bodyIn;}} 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handler.sendMessage(handler.obtainMessage(0, resultSoapObject));}}});}public interface WebServiceCallBack {public void callBack(SoapObject result);}}

获取省份的activity：

package com.example.administrator.webserviceandhttpurl;import android.app.ProgressDialog;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.widget.AdapterView.OnItemClickListener;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.Toast;import com.mfc.UrlUtils.WebServiceUtils;import org.ksoap2.serialization.SoapObject;import java.util.ArrayList;import java.util.List;public class KsoapProvinceActivity extends AppCompatActivity {    private List<String> provinceList = new ArrayList<String>();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.provinceandcity);        init();    }    private void init(){        final ListView listView = (ListView) findViewById(R.id.provinceAndCity);        //显示进度条        final ProgressDialog dialog;        dialog = ProgressDialog.show(KsoapProvinceActivity.this, "提示", "加载中，请稍后...");        //通过工具类调用WebService接口        WebServiceUtils.callWebSerVice(WebServiceUtils.WEB_SERVICE_URL, "getSupportProvince", null, new WebServiceUtils.WebServiceCallBack() {            //WebService接口返回的数据回调到这个方法中            @Override            public void callBack(SoapObject result) {                //关闭进度条                dialog.dismiss();                if(result != null){                    provinceList = parseSoapObject(result);                    ArrayAdapter<String> adapter = new ArrayAdapter<String>(KsoapProvinceActivity.this, android.R.layout.simple_list_item_1,provinceList);                    listView.setAdapter(adapter);                }else{                    Toast.makeText(KsoapProvinceActivity.this, "获取WebService数据错误", Toast.LENGTH_SHORT).show();                }            }        });        listView.setOnItemClickListener(new OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                Intent intent = new Intent(KsoapProvinceActivity.this, KsoapCityActivity.class);                intent.putExtra("province", provinceList.get(position));                startActivity(intent);            }        });    }    //解析SoapObject对象    private List<String> parseSoapObject(SoapObject result){        List<String> list = new ArrayList<String>();        //返回的属性中有getSupportProvinceResult，返回的值可能还是一个SoapObject对象，那就再调用一次这个方法，总能得到想要的值        SoapObject provinceSoapObject = (SoapObject) result.getProperty("getSupportProvinceResult");        if(provinceSoapObject == null){            return null;        }        for(int i=0;i<provinceSoapObject.getPropertyCount();i++){            list.add(provinceSoapObject.getProperty(i).toString());        }        return list;    }}

获取城市的Activity：

package com.example.administrator.webserviceandhttpurl;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import org.ksoap2.serialization.SoapObject;import android.app.ProgressDialog;import android.content.Intent;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.Toast;import com.mfc.UrlUtils.WebServiceUtils;public class KsoapCityActivity extends AppCompatActivity {    private List<String> cityStringList = new ArrayList<String>();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.provinceandcity);        init();    }    private void init() {        final ListView listView = (ListView) findViewById(R.id.provinceAndCity);        // 显示进度条        final ProgressDialog dialog;        dialog = ProgressDialog.show(KsoapCityActivity.this, "提示", "加载中，请稍后...");        // 添加参数        HashMap<String, String> properties = new HashMap<String, String>();        properties                .put("byProvinceName", getIntent().getStringExtra("province"));        // 通过工具类调用WebService接口        WebServiceUtils.callWebSerVice(WebServiceUtils.WEB_SERVICE_URL,                "getSupportCity", properties, new WebServiceUtils.WebServiceCallBack() {                    // WebService接口返回的数据回调到这个方法中                    @Override                    public void callBack(SoapObject result) {                        // 关闭进度条                        dialog.dismiss();                        if (result != null) {                            cityStringList = parseSoapObject(result);                            ArrayAdapter<String> adapter = new ArrayAdapter<String>(                                    KsoapCityActivity.this,                                    android.R.layout.simple_list_item_1,                                    cityStringList);                            listView.setAdapter(adapter);                        } else {                            Toast.makeText(KsoapCityActivity.this,                                    "获取WebService数据错误", Toast.LENGTH_SHORT)                                    .show();                        }                    }                });        listView.setOnItemClickListener(new OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> arg0, View arg1,                                    int arg2, long arg3) {                Intent intent = new Intent(KsoapCityActivity.this, KsoapWeatherActivity.class);                intent.putExtra("city", cityStringList.get(arg2));                startActivity(intent);            }        });    }    // 解析SoapObject对象    private List<String> parseSoapObject(SoapObject result) {        List<String> list = new ArrayList<String>();        SoapObject provinceSoapObject = (SoapObject) result                .getProperty("getSupportCityResult");        for (int i = 0; i < provinceSoapObject.getPropertyCount(); i++) {            String cityString = provinceSoapObject.getProperty(i).toString();            list.add(cityString.substring(0, cityString.indexOf("(")).trim());        }        return list;    }}

显示省份和城市用的是一个xml：provinceandcity.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <ListView        android:id="@+id/provinceAndCity"        android:layout_width="match_parent"        android:layout_height="wrap_content"></ListView></LinearLayout>

获取天气信息的Activity：

package com.example.administrator.webserviceandhttpurl;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import java.util.HashMap;import org.ksoap2.serialization.SoapObject;import android.app.ProgressDialog;import android.widget.TextView;import android.widget.Toast;import com.mfc.UrlUtils.WebServiceUtils;public class KsoapWeatherActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.weather);        init();    }    private void init() {        final TextView mTextWeather = (TextView) findViewById(R.id.weather);        // 显示进度条        final ProgressDialog dialog;        dialog = ProgressDialog.show(KsoapWeatherActivity.this, "提示", "加载中，请稍后...");        HashMap<String, String> properties = new HashMap<String, String>();        properties.put("theCityName", getIntent().getStringExtra("city"));        WebServiceUtils.callWebSerVice(WebServiceUtils.WEB_SERVICE_URL,                "getWeatherbyCityName", properties, new WebServiceUtils.WebServiceCallBack() {                    @Override                    public void callBack(SoapObject result) {                        dialog.dismiss();                        if (result != null) {                            SoapObject detail = (SoapObject) result                                    .getProperty("getWeatherbyCityNameResult");                            StringBuilder sb = new StringBuilder();                            for (int i = 0; i < detail.getPropertyCount(); i++) {                                sb.append(detail.getProperty(i)).append("\r\n");                            }                            mTextWeather.setText(sb.toString());                        } else {                            Toast.makeText(KsoapWeatherActivity.this,                                    "获取WebService数据错误", Toast.LENGTH_SHORT)                                    .show();                        }                    }                });    }}

显示天气的xml：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent" >    <ScrollView          android:layout_width="fill_parent"          android:layout_height="fill_parent" >            <LinearLayout              android:layout_width="match_parent"              android:layout_height="match_parent" >                <TextView                  android:id="@+id/weather"                  android:textColor="#336598"                  android:textSize="16sp"                  android:layout_width="match_parent"                  android:layout_height="match_parent" />          </LinearLayout>      </ScrollView>  </RelativeLayout>

效果图（这里不知道为什么显示不出来天气，还望有人指点）：

二、使用HttpUrlConnection:

工具类：

package com.mfc.UrlUtils;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;/** * Created by Administrator on 2017/8/10. */public class HttpURLConnectionUtils {    public static String getRemoteInfo(String targetUrl){        String jsonString="";        try {            URL url=new URL(targetUrl);            HttpURLConnection connection=(HttpURLConnection) url.openConnection();            connection.setConnectTimeout(3000);            connection.setRequestMethod("GET");            connection.setDoInput(true);            int code=connection.getResponseCode();            if(code==200){                InputStream inputStream=connection.getInputStream();                ByteArrayOutputStream outputStream=new ByteArrayOutputStream();                int len=0;                byte[] data=new byte[1024];                while ((len=inputStream.read(data))!=-1) {                    outputStream.write(data, 0, len);                }                jsonString=new String(outputStream.toByteArray());            }        } catch (IOException e) {            e.printStackTrace();        }        return jsonString;    }}

Activity：

package com.example.administrator.webserviceandhttpurl;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.support.v7.app.AppCompatActivity;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;import com.mfc.UrlUtils.HttpURLConnectionUtils;/** 以查询湖北省的所有城市名称为例* */public class HttpURLConnectionActivity extends AppCompatActivity {    private String allCityString;    private TextView allcity;    Handler handler = new Handler(){        @Override        public void handleMessage(Message msg) {            switch (msg.what){                case 000:                    allcity.setText(filterHtml(allCityString));                    break;            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.allcity);        allcity = (TextView) findViewById(R.id.allcity);        init();    }    private void init(){        final String path="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx/getWeatherbyCityName?theCityName=随州";        new Thread(new Runnable() {            @Override            public void run() {                allCityString = HttpURLConnectionUtils.getRemoteInfo(path);                handler.sendEmptyMessage(000);            }        }).start();    }    /**     * 使用正则表达式过滤HTML标记     *     * @param source 待过滤内容     * @return     */    private String filterHtml(String source) {        if(null == source){            return "";        }        return source.replaceAll("</?[^>]+>","").trim();    }}

显示界面xml：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <ScrollView        android:layout_width="match_parent"        android:layout_height="wrap_content">        <TextView            android:id="@+id/allcity"            android:layout_width="match_parent"            android:layout_height="wrap_content" />    </ScrollView></LinearLayout>

效果图：

资源下载：http://download.csdn.net/download/fancheng614/9928559

找了比较多类似的博客，发现这一篇讲的挺好的：http://blog.csdn.net/lyq8479/article/details/6428288

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