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android 根据IP获取天气情况 详细讲解

来源：互联网 发布：儿童电脑编程软件魔爪 编辑：程序博客网 时间：2024/04/30 09:50

分析：

此功能必须在可用的网络下运行的，确保在有可用网络下才能正常运行，获取当前网络IP判断所在城市，通过城市查询天气

1、首先判断网络是否正常（笔者做的是平板应用的一个模块有手机有些功能不一样）

[java] view plaincopyprint?
  1. public void getLocalIPAddress() {
  3. WifiManager wm = (WifiManager) getSystemService(Context.WIFI_SERVICE);
  4. if (!wm.isWifiEnabled()) {
  5. Toast.makeText(this, "没有可用的网络", Toast.LENGTH_LONG).show();
  6. }
  7. }


2、其次要自动获取IP地址（webservice借口、相关网址），在此，笔者是根据网址获取，在进行解析

getCityIP()

[java] view plaincopyprint?
  1. public void getCityIP() {
  2. URL url;
  3. URLConnection conn = null;
  4. InputStream is = null;
  5. InputStreamReader isr = null;
  6. BufferedReader br = null;
  7. String str = "";
  8. org.jsoup.nodes.Document doc;
  9. try {
  10. url = new URL("http://city.ip138.com/city.asp");
  11. conn = url.openConnection();
  12. is = conn.getInputStream();
  13. isr = new InputStreamReader(is);
  14. br = new BufferedReader(isr);
  15. String input = "";
  16. while ((input = br.readLine()) != null) {
  17. str += input;
  18. }
  19. doc = Jsoup.parse(str);
  20. String ip1 = doc.body().text();
  21. int start = ip1.indexOf("[");
  22. int end = ip1.indexOf("]");
  23. setIp(ip1.substring(start + 1, end));
  24. } catch (Exception e) {
  25. e.printStackTrace();
  26. }
  28. }


3、再次根据IP地址获取城市(webservice借口、解析网页)

getCityByIp():

[java] view plaincopyprint?
  1. public void getCityByIp() {
  2. try {
  3. URL url = new URL("http://whois.pconline.com.cn/ip.jsp?ip=" + getIp());
  4. HttpURLConnection connect = (HttpURLConnection) url
  5. .openConnection();
  6. InputStream is = connect.getInputStream();
  7. ByteArrayOutputStream outStream = new ByteArrayOutputStream();
  8. byte[] buff = new byte[256];
  9. int rc = 0;
  10. while ((rc = is.read(buff, 0, 256)) > 0) {
  11. outStream.write(buff, 0, rc);
  13. }
  14. System.out.println(outStream);
  15. byte[] b = outStream.toByteArray();
  17. // 关闭
  18. outStream.close();
  19. is.close();
  20. connect.disconnect();
  21. String address = new String(b,"GBK");
  22. if (address.startsWith("北")||address.startsWith("上")||address.startsWith("重")){
  23. setCity(address.substring(0,address.indexOf("市")));
  24. }
  25. if(address.startsWith("香")){
  26. setCity(address.substring(0,address.indexOf("港")));
  27. }
  28. if(address.startsWith("澳")){
  29. setCity(address.substring(0,address.indexOf("门")));
  30. }
  31. if (address.indexOf("省") != -1) {
  32. setCity(address.substring(address.indexOf("省") + 1, address.indexOf("市")));
  33. }
  34. } catch (Exception e) {
  35. e.printStackTrace();
  36. }
  37. }

4、进行天气查询实现webservice接口（http://www.webxml.com.cn/webservices/weatherwebservice.asmx）

[java] view plaincopyprint?
  1. private staticfinal String NAMESPACE = "http://WebXml.com.cn/";
  3. // WebService地址
  4. private static String URL ="http://www.webxml.com.cn/webservices/weatherwebservice.asmx";
  5. private staticfinal String METHOD_NAME = "getWeatherbyCityName";
  7. private static String SOAP_ACTION ="http://WebXml.com.cn/getWeatherbyCityName";
  8. private String weatherToday;
  9. private SoapObject detail;
  10. private String weatherNow;
  11. private String weatherWillBe;
  13. private void setIcon(String weather, ImageView imageview) {
  14. if (weather.equalsIgnoreCase("nothing.gif"))
  15. imageview.setBackgroundResource(R.drawable.a_nothing);
  16. if (weather.equalsIgnoreCase("0.gif"))
  17. imageview.setBackgroundResource(R.drawable.a_0);
  18. if (weather.equalsIgnoreCase("1.gif"))
  19. imageview.setBackgroundResource(R.drawable.a_1);
  20. if (weather.equalsIgnoreCase("2.gif"))
  21. imageview.setBackgroundResource(R.drawable.a_2);
  22. if (weather.equalsIgnoreCase("3.gif"))
  23. imageview.setBackgroundResource(R.drawable.a_3);
  24. if (weather.equalsIgnoreCase("4.gif"))
  25. imageview.setBackgroundResource(R.drawable.a_4);
  26. if (weather.equalsIgnoreCase("5.gif"))
  27. imageview.setBackgroundResource(R.drawable.a_5);
  28. if (weather.equalsIgnoreCase("6.gif"))
  29. imageview.setBackgroundResource(R.drawable.a_6);
  30. if (weather.equalsIgnoreCase("7.gif"))
  31. imageview.setBackgroundResource(R.drawable.a_7);
  32. if (weather.equalsIgnoreCase("8.gif"))
  33. imageview.setBackgroundResource(R.drawable.a_8);
  34. if (weather.equalsIgnoreCase("9.gif"))
  35. imageview.setBackgroundResource(R.drawable.a_9);
  36. if (weather.equalsIgnoreCase("10.gif"))
  37. imageview.setBackgroundResource(R.drawable.a_10);
  38. if (weather.equalsIgnoreCase("11.gif"))
  39. imageview.setBackgroundResource(R.drawable.a_11);
  40. if (weather.equalsIgnoreCase("12.gif"))
  41. imageview.setBackgroundResource(R.drawable.a_12);
  42. if (weather.equalsIgnoreCase("13.gif"))
  43. imageview.setBackgroundResource(R.drawable.a_13);
  44. if (weather.equalsIgnoreCase("14.gif"))
  45. imageview.setBackgroundResource(R.drawable.a_14);
  46. if (weather.equalsIgnoreCase("15.gif"))
  47. imageview.setBackgroundResource(R.drawable.a_15);
  48. if (weather.equalsIgnoreCase("16.gif"))
  49. imageview.setBackgroundResource(R.drawable.a_16);
  50. if (weather.equalsIgnoreCase("17.gif"))
  51. imageview.setBackgroundResource(R.drawable.a_17);
  52. if (weather.equalsIgnoreCase("18.gif"))
  53. imageview.setBackgroundResource(R.drawable.a_18);
  54. if (weather.equalsIgnoreCase("19.gif"))
  55. imageview.setBackgroundResource(R.drawable.a_19);
  56. if (weather.equalsIgnoreCase("20.gif"))
  57. imageview.setBackgroundResource(R.drawable.a_20);
  58. if (weather.equalsIgnoreCase("21.gif"))
  59. imageview.setBackgroundResource(R.drawable.a_21);
  60. if (weather.equalsIgnoreCase("22.gif"))
  61. imageview.setBackgroundResource(R.drawable.a_22);
  62. if (weather.equalsIgnoreCase("23.gif"))
  63. imageview.setBackgroundResource(R.drawable.a_23);
  64. if (weather.equalsIgnoreCase("24.gif"))
  65. imageview.setBackgroundResource(R.drawable.a_24);
  66. if (weather.equalsIgnoreCase("25.gif"))
  67. imageview.setBackgroundResource(R.drawable.a_25);
  68. if (weather.equalsIgnoreCase("26.gif"))
  69. imageview.setBackgroundResource(R.drawable.a_26);
  70. if (weather.equalsIgnoreCase("27.gif"))
  71. imageview.setBackgroundResource(R.drawable.a_27);
  72. if (weather.equalsIgnoreCase("28.gif"))
  73. imageview.setBackgroundResource(R.drawable.a_28);
  74. if (weather.equalsIgnoreCase("29.gif"))
  75. imageview.setBackgroundResource(R.drawable.a_29);
  76. if (weather.equalsIgnoreCase("30.gif"))
  77. imageview.setBackgroundResource(R.drawable.a_30);
  78. if (weather.equalsIgnoreCase("31.gif"))
  79. imageview.setBackgroundResource(R.drawable.a_31);
  80. }
  82. public void getWeather(String cityName) {
  83. try {
  84. SoapObject rpc = new SoapObject(NAMESPACE, METHOD_NAME);
  85. rpc.addProperty("theCityName", cityName);
  87. SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
  88. SoapEnvelope.VER11);
  89. envelope.bodyOut = rpc;
  90. envelope.dotNet = true;
  91. envelope.setOutputSoapObject(rpc);
  92. HttpTransportSE ht = new HttpTransportSE(URL);
  94. ht.debug = true;
  96. ht.call(SOAP_ACTION, envelope);
  97. detail = (SoapObject) envelope.getResponse();
  98. parseWeather(detail);
  99. } catch (Exception e) {
  100. e.printStackTrace();
  101. }
  102. }
  104. private void parseWeather(SoapObject detail)
  105. throws UnsupportedEncodingException {
  106. textview1 = (TextView) this.findViewById(R.id.TextView01);
  108. String date = detail.getProperty(6).toString();
  110. // 当天天气
  111. weatherToday = "\n天气：" + date.split(" ")[1];
  112. weatherToday = weatherToday + "\n气温："
  113. + detail.getProperty(5).toString();
  114. weatherToday = weatherToday + "\n风力："
  115. + detail.getProperty(7).toString() + "\n";
  117. weatherNow = detail.getProperty(8).toString();
  118. weatherWillBe = detail.getProperty(9).toString();
  120. textview1.setText(getIp() + '\n' + getCity() + "\n今天"
  121. + weatherToday);
  122. setIcon(weatherNow, image1);
  123. setIcon(weatherWillBe, image2);
  124. }


5、最后在AndroidMainifest.xml加入权限

[java] view plaincopyprint?
  1. <uses-permission android:name="android.permission.INTERNET"></uses-permission>
  2. <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
  3. <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
  4. <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
  5. <uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>

转自：http://blog.csdn.net/liushengmeng/article/details/8202425

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