调用对象[置顶] Android通过调用Webservice实现天气预报

这几周笔者几篇文章介绍了改调用对象的文章. 关联文章的址地

通过这一篇文章WebService的读书笔记对Web Service的意识，当初来写一个小用应Android通过调用Webservice现实气候预报来加强对Web Srevice的学习

在开辟气候预报的Android用应之前，首先须要找到一个可以对外供提气候预报的Web Service,通过搜索现发站点http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx可以对外供提气候预报的Web Service,因此程序会调用此站点的Web Service来现实气候预报。(注意：如果该站点的气候预报Web Service务服已停止，那么本程序将没法常正调用Web Service，那么气候预报的功能天然也就失效啦)

好啦，当初开始step by step地现实该用应程序。

step1:新建Android目项MyWeather

step2:取得并应用KSOAP包

在Android SDK中并没有供提调用WebService的库，因此，须要应用第三方的SDK来调用WebService。PC版本的WebService库非常丰富，但这些对Android说来过于宏大。合适机手的WebService客户端的SDK有一些，比拟用常的是KSOAP2。

KSOAP2 址地：http://code.google.com/p/ksoap2-android/

我下载的最新的是： ksoap2-android-assembly-2.5.2-jar-with-dependencies.jar

选择我们的目项，右键菜单中 Build Path –> Add External Archives… 加增这个下载的包

step3:计划用应的UI界面 /res/layout/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="wrap_content"><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"><TextView android:layout_width="wrap_content"android:layout_height="wrap_content" android:hint="@string/province" /><!-- 让用户选择份省的Spinner --><Spinner android:id="@+id/province" android:layout_width="fill_parent"android:layout_height="wrap_content" /></LinearLayout><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"><TextView android:layout_width="wrap_content"android:layout_height="wrap_content" android:hint="@string/city" /><!-- 让用户选择市城的Spinner --><Spinner android:id="@+id/city" android:layout_width="fill_parent"android:layout_height="wrap_content" /></LinearLayout><!-- 表现天今气候的图片和文本框 --><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"><ImageView android:id="@+id/todayWhIcon1"android:layout_width="wrap_content" android:layout_height="wrap_content" /><ImageView android:id="@+id/todayWhIcon2"android:layout_width="wrap_content" android:layout_height="wrap_content" /><TextView android:id="@+id/weatherToday"android:layout_width="fill_parent" android:layout_height="wrap_content"android:layout_weight="1" /></LinearLayout><!-- 表现天明气候的图片和文本框 --><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"><ImageView android:id="@+id/tomorrowWhIcon1"android:layout_width="wrap_content" android:layout_height="wrap_content" /><ImageView android:id="@+id/tomorrowWhIcon2"android:layout_width="wrap_content" android:layout_height="wrap_content" /><TextView android:id="@+id/weatherTomorrow"android:layout_width="fill_parent" android:layout_height="wrap_content"android:layout_weight="1" /></LinearLayout><!-- 表现后天气候的图片和文本框 --><LinearLayout android:layout_width="fill_parent"android:layout_height="wrap_content"><ImageView android:id="@+id/afterdayWhIcon1"android:layout_width="wrap_content" android:layout_height="wrap_content" /><ImageView android:id="@+id/afterdayWhIcon2"android:layout_width="wrap_content" android:layout_height="wrap_content" /><TextView android:id="@+id/weatherAfterday"android:layout_width="fill_parent" android:layout_height="wrap_content"android:layout_weight="1" /></LinearLayout><TextView android:id="@+id/weatherCurrent"android:layout_width="fill_parent" android:layout_height="wrap_content" /></LinearLayout>

/res/values/strings.xml

<?xml version="1.0" encoding="utf-8"?><resources>    <string name="app_name">气候预报</string>    <string name="btn_apply">查询</string>    <string name="text_hint">市城中文名</string>    <string name="province">份省</string>    <string name="city">市城</string></resources>

step3:编写调用Web Service的具工类 cn.roco.weather.WebServiceUtil.java

因为本程序重要须要调用如下三个Web Service作操：

a.取得份省：getRegionProvince法方

b.根据份省取得市城：getSupportCityString法方

c.根据市城取得气候：getWeather法方

为了让用应界面更加雅观，可以拜访http://www.webxml.com.cn/images/weather.zip下载各种气候标图，可以应用这些气候标图来丑化用应。

package cn.roco.weather;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.ksoap2.SoapEnvelope;import org.ksoap2.serialization.SoapObject;import org.ksoap2.serialization.SoapSerializationEnvelope;import org.ksoap2.transport.HttpTransportSE;import org.xmlpull.v1.XmlPullParserException;public class WebServiceUtil{// 义定Web Service的命名空间static final String SERVICE_NS = "http://WebXml.com.cn/";// 义定Web Service供提务服的URLstatic final String SERVICE_URL = "http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx";// 调用程远 Web Service取得份省列表public static List<String> getProvinceList(){/** * 调用程远Web Service的getRegionProvince法方: 取得中国份省、直辖市、地域和与之对应的ID * <ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://WebXml.com.cn/"><string>黑龙江,3113</string><string>吉林,3114</string><string>辽宁,3115</string><string>内蒙古,3116</string><string>河北,3117</string><string>河南,3118</string><string>山东,3119</string><string>山西,31110</string><string>江苏,31111</string><string>安徽,31112</string><string>陕西,31113</string><string>宁夏,31114</string><string>甘肃,31115</string><string>青海,31116</string><string>湖北,31117</string><string>湖南,31118</string><string>浙江,31119</string><string>江西,31120</string><string>福建,31121</string><string>贵州,31122</string><string>四川,31123</string><string>广东,31124</string><string>广西,31125</string><string>云南,31126</string><string>海南,31127</string><string>新疆,31128</string><string>西藏,31129</string><string>台湾,31130</string><string>北京,311101</string><string>上海,311102</string><string>天津,311103</string><string>重庆,311104</string><string>香港,311201</string><string>澳门,311202</string><string>钓鱼岛,311203</string></ArrayOfString> */String methodName = "getRegionProvince";   //取得中国份省、直辖市、地域和与之对应的ID// 创立HttpTransportSE传输对象,该对象用于调用Web Service作操HttpTransportSE ht = new HttpTransportSE(SERVICE_URL);ht.debug = true;// 应用SOAP1.1协议创立Envelop对象SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);// 实例化SoapObject对象，传入所要调用的Web Service的命名空间，Web Service法方名SoapObject soapObject = new SoapObject(SERVICE_NS, methodName);//将 soapObject对象设置为SoapSerializationEnvelope对象的传出SOAP消息envelope.bodyOut = soapObject;/** *  因为什么这个网站是通过.NET对外供提Web Service的， *  因此设置与.Net供提的Web Service持保较好的兼容性 */envelope.dotNet = true;try{// 调用Web Serviceht.call(SERVICE_NS + methodName, envelope);if (envelope.getResponse() != null){// 取得务服器响应返回的SOAP消息SoapObject result = (SoapObject) envelope.bodyIn;SoapObject detail = (SoapObject) result.getProperty(methodName+ "Result");// 析解务服器响应的SOAP消息。return parseProvinceOrCity(detail);}}catch (IOException e){e.printStackTrace();}catch (XmlPullParserException e){e.printStackTrace();}return null;}// 根据份省取得市城列表public static List<String> getCityListByProvince(String province){/** *  调用的法方 *  取得持支的市城/地域称名和与之对应的ID输入数参：theRegionCode = 省市、家国ID或称名，返回数据：一维字符串组数。如：输入北京的theRegionCode:311101到得的返回结果为：<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://WebXml.com.cn/"><string>北京,792</string><string>昌平,785</string><string>大兴,826</string><string>房山,827</string><string>怀柔,752</string><string>门头沟,788</string><string>密云,751</string><string>平谷,756</string><string>顺义,741</string><string>通州,3409</string><string>延庆,746</string><string>海淀,742</string><string>旭日,3408</string><string>丰台,795</string><string>石景山,794</string></ArrayOfString> */String methodName = "getSupportCityString";  // 创立HttpTransportSE传输对象HttpTransportSE ht = new HttpTransportSE(SERVICE_URL);ht.debug = true;// 实例化SoapObject对象SoapObject soapObject = new SoapObject(SERVICE_NS, methodName);// 添加一个求请数参soapObject.addProperty("theRegionCode", province);// 应用SOAP1.1协议创立Envelop对象SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);envelope.bodyOut = soapObject;// 设置与.Net供提的Web Service持保较好的兼容性envelope.dotNet = true;try{// 调用Web Serviceht.call(SERVICE_NS + methodName, envelope);if (envelope.getResponse() != null){// 取得务服器响应返回的SOAP消息SoapObject result = (SoapObject) envelope.bodyIn;SoapObject detail = (SoapObject) result.getProperty(methodName+ "Result");// 析解务服器响应的SOAP消息。return parseProvinceOrCity(detail);}}catch (IOException e){e.printStackTrace();}catch (XmlPullParserException e){e.printStackTrace();}return null;}// 析解务服器响应的SOAP消息。private static List<String> parseProvinceOrCity(SoapObject detail){List<String> result = new ArrayList<String>();for (int i = 0; i < detail.getPropertyCount(); i++){// 析解出每一个份省result.add(detail.getProperty(i).toString().split(",")[0]);}return result;}// 根据市城取得市城体具气候情况public static SoapObject getWeatherByCity(String cityName){/** * 取得气候预报数据        输入数参：市城/地域ID或称名，返回数据：一维字符串组数。       如：输入theCityCode：792（<string>北京,792</string>）到得的返回结果为：       This XML file does not appear to have any style information associated with it. The document tree is shown below.<ArrayOfString xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://WebXml.com.cn/"><string>直辖市 北京</string><string>北京</string><string>792</string><string>2013/04/30 03:47:53</string><string>本日气候实况：气温：14℃；风向/风力：风东 2级；湿度：21%</string><string>氛围质量：良；紫外线强度：强</string><string>穿衣指数：提议着薄型套装等秋春过渡装。老年体弱者宜着套装。但日夜温差大较，注意当适增减衣服。 过敏指数：气候件条极易引发过敏，易过敏人群尽量少减外出，外出宜穿长衣长裤并佩戴好眼镜和口罩，外出归来时时及洁清手和口鼻。 运动指数：气候较好，但由于风力大较，推荐您在室内停止低强度运动，若在户外运动请注意避风。 洗车指数：合适洗车，未来延续两天无雨气候较好，合适擦洗车汽，蓝天白云、风和日丽将伴您的车子连日干净。 晾晒指数：气候不错，合适晾晒。紧赶把久未见阳光的衣物搬出来吸收一下太阳的滋味吧！ 旅游指数：气候较好，风稍大，但温度合适，是个好气候哦。很合适旅游，您可以情尽地受享大天然的无限风光。 路况指数：气候较好，路面比拟燥干，路况较好。 恬静度指数：天白气候晴好，您在种这气候件条下，会觉感晚早凉快、恬静，午后偏热。 氛围污染指数：气象件条有利于氛围污染物浓缩、扩散和除清，可在室外常正动活。 紫外线指数：紫外线辐射强，提议涂擦SPF20右左、PA++的防晒护肤品。免避在10点至14点露暴于日光下。</string><string>4月30日 晴</string><string>11℃/27℃</string><string>冬风3-4级转无延续风向风微</string><string>0.gif</string><string>0.gif</string><string>5月1日 晴转多云</string><string>12℃/25℃</string><string>无延续风向风微</string><string>0.gif</string><string>1.gif</string><string>5月2日 多云放晴</string><string>13℃/26℃</string><string>无延续风向风微</string><string>1.gif</string><string>0.gif</string><string>5月3日 多云转阴</string><string>11℃/23℃</string><string>无延续风向风微</string><string>1.gif</string><string>2.gif</string><string>5月4日 阴转多云</string><string>14℃/27℃</string><string>无延续风向风微</string><string>2.gif</string><string>1.gif</string></ArrayOfString> */String methodName = "getWeather";HttpTransportSE ht = new HttpTransportSE(SERVICE_URL);ht.debug = true;SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);SoapObject soapObject = new SoapObject(SERVICE_NS, methodName);soapObject.addProperty("theCityCode", cityName);envelope.bodyOut = soapObject;// 设置与.Net供提的Web Service持保较好的兼容性envelope.dotNet = true;try{ht.call(SERVICE_NS + methodName, envelope);SoapObject result = (SoapObject) envelope.bodyIn;SoapObject detail = (SoapObject) result.getProperty(methodName+ "Result");return detail;}catch (Exception e){e.printStackTrace();}return null;}}

每日一道理
听，是谁的琴声，如此凄凉，低调的音，缓慢的节奏，仿佛正诉说着什么。音低调得略微有些抖动，听起来似乎心也有些抖动，我觉感到一种压抑的沉闷气息，是否已凝结在这氛围中……

step4:编写适配器，用于表现数据 cn.roco.weather.ListAdapter.java

package cn.roco.weather;import java.util.List;import android.content.Context;import android.graphics.Color;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;public class ListAdapter extends BaseAdapter{private Context context;private List<String> values;public ListAdapter(Context context , List<String> values){this.context = context;this.values = values;}@Overridepublic int getCount(){return values.size();}@Overridepublic Object getItem(int position){return values.get(position);}@Overridepublic long getItemId(int position){return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent){TextView text = new TextView(context);text.setText(values.get(position));text.setTextSize(20);text.setTextColor(Color.BLACK);return text;}}

step5:程序的主用应cn.roco.weather.MyWeather.java

package cn.roco.weather;import java.util.List;import org.ksoap2.serialization.SoapObject;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.ImageView;import android.widget.Spinner;import android.widget.TextView;import android.widget.AdapterView.OnItemSelectedListener;public class MyWeather extends Activity{private Spinner provinceSpinner;private Spinner citySpinner;private ImageView todayWhIcon1;private ImageView todayWhIcon2;private TextView textWeatherToday;private ImageView tomorrowWhIcon1;private ImageView tomorrowWhIcon2;private TextView textWeatherTomorrow;private ImageView afterdayWhIcon1;private ImageView afterdayWhIcon2;private TextView textWeatherAfterday;private TextView textWeatherCurrent;@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);todayWhIcon1 = (ImageView) findViewById(R.id.todayWhIcon1);todayWhIcon2 = (ImageView) findViewById(R.id.todayWhIcon2);textWeatherToday = (TextView) findViewById(R.id.weatherToday);tomorrowWhIcon1 = (ImageView) findViewById(R.id.tomorrowWhIcon1);tomorrowWhIcon2 = (ImageView) findViewById(R.id.tomorrowWhIcon2);textWeatherTomorrow = (TextView) findViewById(R.id.weatherTomorrow);afterdayWhIcon1 = (ImageView) findViewById(R.id.afterdayWhIcon1);afterdayWhIcon2 = (ImageView) findViewById(R.id.afterdayWhIcon2);textWeatherAfterday = (TextView) findViewById(R.id.weatherAfterday);textWeatherCurrent = (TextView) findViewById(R.id.weatherCurrent);// 取得程序界面中选择份省、市城的Spinner组件provinceSpinner = (Spinner) findViewById(R.id.province);citySpinner = (Spinner) findViewById(R.id.city);// 调用程远Web Service取得份省列表List<String> provinces = WebServiceUtil.getProvinceList();ListAdapter adapter = new ListAdapter(this, provinces);// 应用Spinner表现份省列表provinceSpinner.setAdapter(adapter);// 当份省Spinner的选择项被转变时provinceSpinner.setOnItemSelectedListener(new OnItemSelectedListener(){@Overridepublic void onItemSelected(AdapterView<?> source, View parent,int position, long id){// 根据份省取得市城列表List<String> cities = WebServiceUtil.getCityListByProvince(provinceSpinner.getSelectedItem().toString());ListAdapter cityAdapter = new ListAdapter(MyWeather.this,cities);// 应用Spinner表现市城列表citySpinner.setAdapter(cityAdapter);}@Overridepublic void onNothingSelected(AdapterView<?> arg0){}});// 当市城Spinner的选择项被转变时citySpinner.setOnItemSelectedListener(new OnItemSelectedListener(){@Overridepublic void onItemSelected(AdapterView<?> source, View parent,int position, long id){//现展气候预报的体具数据showWeather(citySpinner.getSelectedItem().toString());}@Overridepublic void onNothingSelected(AdapterView<?> arg0){}});}//现展气候预报的体具数据private void showWeather(String city){String weatherToday = null;String weatherTomorrow = null;String weatherAfterday = null;String weatherCurrent = null;int iconToday[] = new int[2];int iconTomorrow[] = new int[2];int iconAfterday[] = new int[2];// 取得程远Web Service返回的对象SoapObject detail = WebServiceUtil.getWeatherByCity(city);// 根据市城取得市城体具气候情况// 取得气候实况weatherCurrent = detail.getProperty(4).toString();// 析解天今的气候情况String date = detail.getProperty(7).toString();weatherToday = "天今：" + date.split(" ")[0];weatherToday = weatherToday + "\n气候：" + date.split(" ")[1];weatherToday = weatherToday + "\n气温："+ detail.getProperty(8).toString();weatherToday = weatherToday + "\n风力："+ detail.getProperty(9).toString() + "\n";iconToday[0] = parseIcon(detail.getProperty(10).toString());iconToday[1] = parseIcon(detail.getProperty(11).toString());// 析解天明的气候情况date = detail.getProperty(12).toString();weatherTomorrow = "天明：" + date.split(" ")[0];weatherTomorrow = weatherTomorrow + "\n气候：" + date.split(" ")[1];weatherTomorrow = weatherTomorrow + "\n气温："+ detail.getProperty(13).toString();weatherTomorrow = weatherTomorrow + "\n风力："+ detail.getProperty(14).toString() + "\n";iconTomorrow[0] = parseIcon(detail.getProperty(15).toString());iconTomorrow[1] = parseIcon(detail.getProperty(16).toString());// 析解后天的气候情况date = detail.getProperty(17).toString();weatherAfterday = "后天：" + date.split(" ")[0];weatherAfterday = weatherAfterday + "\n气候：" + date.split(" ")[1];weatherAfterday = weatherAfterday + "\n气温："+ detail.getProperty(18).toString();weatherAfterday = weatherAfterday + "\n风力："+ detail.getProperty(19).toString() + "\n";iconAfterday[0] = parseIcon(detail.getProperty(20).toString());iconAfterday[1] = parseIcon(detail.getProperty(21).toString());// 新更当天的气候实况textWeatherCurrent.setText(weatherCurrent);// 新更表现天今气候的标图和文本框textWeatherToday.setText(weatherToday);todayWhIcon1.setImageResource(iconToday[0]);todayWhIcon2.setImageResource(iconToday[1]);// 新更表现天明气候的标图和文本框textWeatherTomorrow.setText(weatherTomorrow);tomorrowWhIcon1.setImageResource(iconTomorrow[0]);tomorrowWhIcon2.setImageResource(iconTomorrow[1]);// 新更表现后天气候的标图和文本框textWeatherAfterday.setText(weatherAfterday);afterdayWhIcon1.setImageResource(iconAfterday[0]);afterdayWhIcon2.setImageResource(iconAfterday[1]);}// 具工法方，该法方责负把返回的气候标图字符串，转换为程序的图片源资ID。private int parseIcon(String strIcon){if (strIcon == null)return -1;if ("0.gif".equals(strIcon))return R.drawable.a_0;if ("1.gif".equals(strIcon))return R.drawable.a_1;if ("2.gif".equals(strIcon))return R.drawable.a_2;if ("3.gif".equals(strIcon))return R.drawable.a_3;if ("4.gif".equals(strIcon))return R.drawable.a_4;if ("5.gif".equals(strIcon))return R.drawable.a_5;if ("6.gif".equals(strIcon))return R.drawable.a_6;if ("7.gif".equals(strIcon))return R.drawable.a_7;if ("8.gif".equals(strIcon))return R.drawable.a_8;if ("9.gif".equals(strIcon))return R.drawable.a_9;if ("10.gif".equals(strIcon))return R.drawable.a_10;if ("11.gif".equals(strIcon))return R.drawable.a_11;if ("12.gif".equals(strIcon))return R.drawable.a_12;if ("13.gif".equals(strIcon))return R.drawable.a_13;if ("14.gif".equals(strIcon))return R.drawable.a_14;if ("15.gif".equals(strIcon))return R.drawable.a_15;if ("16.gif".equals(strIcon))return R.drawable.a_16;if ("17.gif".equals(strIcon))return R.drawable.a_17;if ("18.gif".equals(strIcon))return R.drawable.a_18;if ("19.gif".equals(strIcon))return R.drawable.a_19;if ("20.gif".equals(strIcon))return R.drawable.a_20;if ("21.gif".equals(strIcon))return R.drawable.a_21;if ("22.gif".equals(strIcon))return R.drawable.a_22;if ("23.gif".equals(strIcon))return R.drawable.a_23;if ("24.gif".equals(strIcon))return R.drawable.a_24;if ("25.gif".equals(strIcon))return R.drawable.a_25;if ("26.gif".equals(strIcon))return R.drawable.a_26;if ("27.gif".equals(strIcon))return R.drawable.a_27;if ("28.gif".equals(strIcon))return R.drawable.a_28;if ("29.gif".equals(strIcon))return R.drawable.a_29;if ("30.gif".equals(strIcon))return R.drawable.a_30;if ("31.gif".equals(strIcon))return R.drawable.a_31;return 0;}}

step6:AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"android:versionCode="1" android:versionName="1.0" package="cn.roco.weather"><application android:icon="@drawable/icon" android:label="@string/app_name"><activity android:name=".MyWeather" android:label="@string/app_name"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity></application><uses-permission android:name="android.permission.INTERNET"/></manifest>

step7:部署用应，观看行运效果

附注：本用应的码源在：http://pan.baidu.com/share/link?shareid=419671&uk=805959799

关于Web Service的用应还可以查看Android通过调用Webservice现实机手号码归属地查询停止学习

文章结束给大家分享下程序员的一些笑话语录：现在社会太数字化了，所以最好是有一个集很多功能于一身的设备！

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