新浪天气api

package com.smartdot.dcu;

/**
 * java获取新浪天气预报代码
 */
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.FileInputStream;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;  

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;  

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;  

/**
 * 解析xml文档，包括本地文档和url
 *
 */
public class CommonsWeatherUtils {  

    InputStream inStream;
    Element root;
    public InputStream getInStream() {
        return inStream;
    }
    public void setInStream(InputStream inStream) {
        this.inStream = inStream;
    }  

    public Element getRoot() {
        return root;
    }  

    public void setRoot(Element root) {
        this.root = root;  

    }
    public CommonsWeatherUtils() {  

    }  

    /**
    * 通过输入流来获取新浪接口信息
     * @param inStream
     */
    public CommonsWeatherUtils(InputStream inStream) {
        if (inStream != null) {
            this.inStream = inStream;
            DocumentBuilderFactory domfac = DocumentBuilderFactory.newInstance();
            try {
                DocumentBuilder domBuilder = domfac.newDocumentBuilder();
                Document doc = domBuilder.parse(inStream);
                root = doc.getDocumentElement();
            } catch (ParserConfigurationException e) {
                e.printStackTrace();
            } catch (SAXException e) {
               e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }  

    public CommonsWeatherUtils(String path) {
        InputStream inStream = null;
        try {
            inStream = new FileInputStream(path);
        } catch (FileNotFoundException e1) {
            e1.printStackTrace();
        }
        if (inStream != null) {
            this.inStream = inStream;
            DocumentBuilderFactory domfac = DocumentBuilderFactory.newInstance();
            try {
                DocumentBuilder domBuilder = domfac.newDocumentBuilder();
                Document doc = domBuilder.parse(inStream);
                root = doc.getDocumentElement();
            } catch (ParserConfigurationException e) {
                e.printStackTrace();
            } catch (SAXException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }  

    public CommonsWeatherUtils(URL url) {
        InputStream inStream = null;
        try {
            inStream = url.openStream();
        } catch (IOException e1) {
            e1.printStackTrace();
        }  

        if (inStream != null) {
            this.inStream = inStream;
            DocumentBuilderFactory domfac = DocumentBuilderFactory.newInstance();
            try {
                DocumentBuilder domBuilder = domfac.newDocumentBuilder();
                Document doc = domBuilder.parse(inStream);
               root = doc.getDocumentElement();
            } catch (ParserConfigurationException e) {
                e.printStackTrace();
            } catch (SAXException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }  

    /**
     *
     * @param nodes
     * @return 单个节点多个值以分号分隔
     */
    public Map<String, String> getValue(String[] nodes) {
        if (inStream == null || root==null) {
            return null;
        }  

        Map<String, String> map = new HashMap<String, String>();
        // 初始化每个节点的值为null
        for (int i = 0; i < nodes.length; i++) {
            map.put(nodes[i], null);
        }  

        // 遍历第一节点
        NodeList topNodes = root.getChildNodes();
        if (topNodes != null) {
            for (int i = 0; i < topNodes.getLength(); i++) {
                Node book = topNodes.item(i);
                if (book.getNodeType() == Node.ELEMENT_NODE) {
                    for (int j = 0; j < nodes.length; j++) {
                        for (Node node = book.getFirstChild(); node != null; node = node.getNextSibling()) {
                            if (node.getNodeType() == Node.ELEMENT_NODE) {
                                if (node.getNodeName().equals(nodes[j])) {
                                    String val = node.getTextContent();
                                    String temp = map.get(nodes[j]);
                                    if (temp != null && !temp.equals("")) {
                                        temp = temp + ";" + val;
                                    } else {
                                        temp = val;
                                    }
                                    map.put(nodes[j], temp);
                               }
                            }
                        }
                    }
                }
            }
        }
        return map;
    }  

    public String getWeather(String address){
        String weathers = "";
        String addressGBK = "";
        try {
            addressGBK = URLEncoder.encode(address, "GBK");
        } catch (UnsupportedEncodingException e2) {
            e2.printStackTrace();
        }

        String link = "http://php.weather.sina.com.cn/xml.php?city="+addressGBK+"&password=DJOYnieT8234jlsK&day=0";

        URL url;  

        try {
            url = new URL(link);
            CommonsWeatherUtils parser = new CommonsWeatherUtils(url);
            //    城市   白天天气，白天温度，夜晚天气，夜晚温度，白天风向，白天风力，夜晚风向，夜晚风力，污染指数，污染扩散指数
            String[] nodes = {"city","status1","temperature1","status2","temperature2","direction1","power1","direction2","power2","pollution_l","pollution_s"};
            Map<String, String> map = parser.getValue(nodes);
            System.out.println(map.get(nodes[0])+" 今天白天："+map.get(nodes[1])+
                    " 最高温度："+map.get(nodes[2])+"℃ 今天夜间："+map.get(nodes[3])+
                    " 最低温度："+map.get(nodes[4])+"℃ "+map.get(nodes[5])+map.get(nodes[6])+
                    map.get(nodes[7])+map.get(nodes[8])+map.get(nodes[9])+map.get(nodes[10]));
            weathers = map.get(nodes[0])+" 今天白天："+map.get(nodes[1])+" 最高温度："+map.get(nodes[2])+"℃ 今天夜间："+map.get(nodes[3])+" 最低温度："+map.get(nodes[4])+"℃ ";
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } 

        return weathers;
    }

    public static void main(String[] args) { 

        CommonsWeatherUtils cwu = new CommonsWeatherUtils();
        System.out.println(cwu.getWeather("大连"));

        //String link="http://php.weather.sina.com.cn/xml.php?city=%D6%D8%C7%EC&password=DJOYnieT8234jlsK&day=0";
        //String link = "http://php.weather.sina.com.cn/search.php?city=%B4%F3%C1%AC&dpc=1";
//      String link = "http://php.weather.sina.com.cn/xml.php?city=%B1%B1%BE%A9&password=DJOYnieT8234jlsK&day=0";
//        try {
//            System.out.println(URLEncoder.encode("北京", "GBK"));
//        } catch (UnsupportedEncodingException e1) {
//            // TODO Auto-generated catch block
//            e1.printStackTrace();
//        }
//
//        URL url;
//
//        try {
//
//            url = new URL(link);
//            CommonsWeatherUtils parser = new CommonsWeatherUtils(url);
//            String[] nodes = {"city","status1","temperature1","status2","temperature2"};
//            Map<String, String> map = parser.getValue(nodes);
//            System.out.println(map.get(nodes[0])+" 今天白天："+map.get(nodes[1])+" 最高温度："+map.get(nodes[2])+"℃ 今天夜间："+map.get(nodes[3])+" 最低温度："+map.get(nodes[4])+"℃ ");
//        } catch (MalformedURLException e) {
//            e.printStackTrace();
//        }  

    }
}