一个WebService

1、取汇率

currencyURL.properties：

AMERICAS=http://www.bloomberg.com/markets/currencies/americas_currencies.htmlASIA/PACIFIC=http://www.bloomberg.com/markets/currencies/asiapac_currencies.htmlEUROPE/AFRICA/MIDDLEEAST=http://www.bloomberg.com/markets/currencies/eurafr_currencies.htmlYAHOO=http://hk.finance.yahoo.com/currency/convert?amt=1&from=USD&to=

 

代码入口：

GetInternetData getInternetData = new GetInternetData();try {currencyMaps = getInternetData.getRequestInfo();} catch (Exception e) {log.error(e.getMessage());//return mapping.findForward("fail");}

 GetInternetData.java:

 

 

读取配置文件：

/** * 从网站读取数据 * @return * @throws Exception */public final List<Exchangerate> getRequestInfo() throws Exception {//读取配置文件，取得网站路径ResourceBundle bundle = ResourceBundle.getBundle("currencyURL");Enumeration<String> enums = bundle.getKeys();List<Exchangerate> currencyMaps = new ArrayList<Exchangerate>();while (enums.hasMoreElements()) {String key = enums.nextElement();//从网站中取得标签if(!key.equals("YAHOO")){log.info("==========>"+key);String res = getHttpRequestInfo(bundle.getString(key));List<Exchangerate> currencyList = getData(res,key);currencyMaps.addAll(currencyList);}}return currencyMaps;}

 

由URL得到Response：

private final String getHttpRequestInfo(String uri) throws Exception {String response = null;// Create an instance of HttpClient.HttpClient client = new HttpClient();// Create a method instance.GetMethod method = new GetMethod(uri);// Provide custom retry handler is necessaryHttpMethodParams httpMethodParams = method.getParams();httpMethodParams.setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));try {int statusCode = client.executeMethod(method);if (statusCode != HttpStatus.SC_OK)throw new RuntimeException("Httpclient Method failed: "+ method.getStatusLine());response = method.getResponseBodyAsString();String s1 = "<table";String e1 = "</table>";int stratIndex = response.indexOf(s1);int endIndex = response.indexOf(e1, stratIndex) + e1.length();String currency = response.substring(stratIndex, endIndex);return currency;} finally {method.releaseConnection();}}

 

 

组装数据：

private List<Exchangerate> getData(String response,String urlKey) throws TransformerException{List<Exchangerate> currencyMaps = new ArrayList<Exchangerate>();Document doc = null;try {DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();doc = factory.newDocumentBuilder().parse(new InputSource(new StringReader(response)));} catch (SAXException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (ParserConfigurationException e) {// TODO Auto-generated catch blocke.printStackTrace();}// 找到table的个数trNodeList trNodes =doc.getDocumentElement().getElementsByTagName("tr");log.info(trNodes.getLength());for(int i=0;i<trNodes.getLength();i++){Node node = trNodes.item(i);Node theadNode = XPathAPI.selectSingleNode(node, "thead");if(null==theadNode){NodeList tdNodes = XPathAPI.selectNodeList(node, "td");Node tdnode = tdNodes.item(0);System.out.println("tdnodes: " + tdnode);if(null != tdnode) {//if ("CURRENCY".equalsIgnoreCase(tdNodes.item(0).getTextContent().trim())) continue;Exchangerate currency = new Exchangerate();//将CURRENCY截取为BaseCurrency与TargetCurrencyString[] cs = tdNodes.item(0).getTextContent().trim().split("[-]");currency.setBasecurrency(cs[0]);currency.setSellcurrency(cs[1]);String amountStr = tdNodes.item(1).getTextContent().trim();amountStr = amountStr.replaceAll(",", "");currency.setWebExrate(Double.parseDouble(amountStr));currency.setArea(urlKey);//currency.setUpdatedate(date);currencyMaps.add(currency);}}}return currencyMaps;}

 

。。。

 

 

 

 

方式二：

 

package tags;import java.io.BufferedReader;public class MainTest {/** * @param args */public static void main(String[] args) {String fromCurrency = "HKD";String toCurrency = "AUD";String googleCur = getGoogleCurrency(fromCurrency, toCurrency);String yahooCur = getYahooCurrency(fromCurrency, toCurrency);System.out.println(googleCur+"\n"+yahooCur);}static String getGoogleCurrency(String fromCurrency, String toCurrency){String rtn = "";String strGoogleURL = "http://www.google.com/ig/calculator?hl=en&q=1" + fromCurrency + "%3D%3F" + toCurrency;try {    // Create a URL for the desired page    URL url = new URL(strGoogleURL);    // Read all the text returned by the server    BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));    String str;    while ((str = in.readLine()) != null) {    rtn += str;        // str is one line of text; readLine() strips the newline character(s)    }    in.close();} catch (MalformedURLException e) {} catch (IOException e) {}return rtn;}static String getYahooCurrency(String fromCurrency, String toCurrency){String rtn = "";String strYahooURL = "http://finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s=" + fromCurrency + toCurrency + "=X";try {    // Create a URL for the desired page    URL url = new URL(strYahooURL);    // Read all the text returned by the server    BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));    String str;    while ((str = in.readLine()) != null) {    rtn += str;        // str is one line of text; readLine() strips the newline character(s)    }    in.close();} catch (MalformedURLException e) {} catch (IOException e) {}return rtn;}}

 

 

。。。