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天气预报代码分析与实现

 2009-09-17 00:00:00 来源:WEB开发网   
核心提示: 拉取天气:Java代码publicJSONObjectgetWeather(Stringcity){Stringtoday=DateTimeUtil.format(newDate(),"yyyyMMdd");if(hmCache.get(city+today)!=null){

拉取天气:

Java代码     

  public JSONObject getWeather(String city) {  
   String today = DateTimeUtil.format(new Date(),"yyyyMMdd"); 
   if(hmCache.get(city+today)!=null){ 
   return hmCache.get(city+today); 
   } 
   JSONObject hm =new JSONObject(); 
 hm.put("zhishu",""); 
 
    try {   
     city = getCityName(city); 
      Document doc;   
      DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();   
      dbf.setNamespaceAware(true);   
      DocumentBuilder db = dbf.newDocumentBuilder();   
      InputStream is = getSoapInputStream(city);  
      if(is == null) return hm; 
      doc = db.parse(is);   
      NodeList nl = doc.getElementsByTagName("Date");   
       
      String tpPrefix = "http://www.nmc.gov.cn/img/weather/dn_icon/"; 
      String t = "",t_res = "",t_tp=""; 
      String t1 = "",t1_res = "",t1_tp=""; 
      String t2 = "",t2_res = "",t2_tp=""; 
      String t3 = "",t3_res = "",t3_tp=""; 
       
      for (int count = 0; count < nl.getLength(); count++) {   
        Node n = nl.item(count);   
         
        NodeList n2 = n.getChildNodes(); 
 
         
        t = doc.getElementsByTagName("Sj0").item(0).getFirstChild().getNodeValue(); 
        t1 = doc.getElementsByTagName("Sj1").item(0).getFirstChild().getNodeValue(); 
        t2 = doc.getElementsByTagName("Sj2").item(0).getFirstChild().getNodeValue(); 
        t3 = doc.getElementsByTagName("Sj3").item(0).getFirstChild().getNodeValue(); 
         
        if(n2!=null){ 
         for(int jj=0;jj<n2.getLength();jj++){ 
         Node nn = n2.item(jj); 
         if(count == 0 ) // 今天 
         { 
          if(nn.getNodeName().equalsIgnoreCase("tq")){ 
          t_res += nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Qw")){ 
          t_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Fx")){ 
          t_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Rc")){ 
          t_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Rl")){ 
          t_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("TP")){ 
          t_tp = nn.getFirstChild().getNodeValue(); 
          t_tp = Utils.replace(t_tp,"\"",""); 
          t_tp = Utils.replace(t_tp,"/images/",""); 
          t_tp = tpPrefix + t_tp; 
          } 
         }else if(count == 1) //明天 
         { 
          if(nn.getNodeName().equalsIgnoreCase("tq")){ 
          t1_res += nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Qw")){ 
          t1_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Fx")){ 
          t1_res += ","+nn.getFirstChild().getNodeValue(); 
          } else if(nn.getNodeName().equalsIgnoreCase("TP")){ 
          t1_tp = nn.getFirstChild().getNodeValue(); 
          t1_tp = Utils.replace(t1_tp,"\"",""); 
          t1_tp = Utils.replace(t1_tp,"/images/",""); 
          t1_tp = tpPrefix + t1_tp; 
          }         
         }else if(count == 2) //后天 
         { 
          if(nn.getNodeName().equalsIgnoreCase("tq")){ 
          t2_res += nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Qw")){ 
          t2_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Fx")){ 
          t2_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("TP")){ 
          t2_tp = nn.getFirstChild().getNodeValue(); 
          t2_tp = Utils.replace(t2_tp,"\"",""); 
          t2_tp = Utils.replace(t2_tp,"/images/",""); 
          t2_tp = tpPrefix + t2_tp; 
          }  
         }else if(count == 3) //大后天 
         { 
          if(nn.getNodeName().equalsIgnoreCase("tq")){ 
          t3_res += nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Qw")){ 
          t3_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("Fx")){ 
          t3_res += ","+nn.getFirstChild().getNodeValue(); 
          }else if(nn.getNodeName().equalsIgnoreCase("TP")){ 
          t3_tp = nn.getFirstChild().getNodeValue(); 
          t3_tp = Utils.replace(t3_tp,"\"",""); 
          t3_tp = Utils.replace(t3_tp,"/images/",""); 
          t3_tp = tpPrefix + t3_tp; 
          }  
         } 
          
          
         } 
        } 
         
 
        
      }   
      is.close();   
      hm.put("t", t); 
      hm.put("t_result", t_res); 
      hm.put("t_tp", t_tp.trim()); 
      hm.put("t1", t1); 
      hm.put("t1_result", t1_res); 
      hm.put("t1_tp", t1_tp.trim()); 
      hm.put("t2", t2); 
      hm.put("t2_result", t2_res); 
      hm.put("t2_tp", t2_tp.trim()); 
      hm.put("t3", t3); 
      hm.put("t3_result", t3_res); 
      hm.put("t3_tp", t3_tp.trim()); 
       
      hmCache.put(city+today, hm); 
       
      return hm; 
    } catch (Exception e) {   
      e.printStackTrace();   
      return null;   
    }   
  } 

附效果地址:http://weather.faqee.com/

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Tags:天气预报 代码 分析

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