package mons;/*** 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 .MalformedURLException;import .URL;import .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nullfor (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 static void main(String[] args) {String link="http://php./xml.php?city=%D6%D8%C7%EC&password=DJOYnieT8234jlsK&day=0";try {System.out.println(URLEncoder.encode("重庆", "GBK"));} catch (UnsupportedEncodingException e1) {// TODO Auto-generated catch blocke1.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();}}}
