package org.ksoap2.samples.amazon;import java.util.Vector;import javax.microedition.midlet.*;import javax.microedition.lcdui.*;import org.ksoap2.*;import org.ksoap2.serialization.*;import org.ksoap2.transport.*;/** * @author Stefan Haustein */public class AmazonDemo extends MIDlet implements CommandListener, Runnable {        Display display;    Form mainForm = new Form("Amazon Sample");    TextField tagField = new TextField("Developer-Tag", "0G7AJ85A74ZDRSP838R2", 64, TextField.ANY);    TextField symbolField = new TextField("Keyword", "pattern", 64, TextField.ANY);    StringItem statusItem = new StringItem("Status", "idle");        static Command getCommand = new Command("Get", Command.SCREEN, 1);    static Command detailCommand = new Command("Details", Command.SCREEN, 1);    static Command newCommand = new Command("New", Command.SCREEN, 1);    static Command backCommand = new Command("Back", Command.BACK, 1);    Vector resultVector;    List resultList;        public AmazonDemo() {        mainForm.append(tagField);        mainForm.append(symbolField);        mainForm.append(statusItem);        mainForm.addCommand(getCommand);        mainForm.setCommandListener(this);    }        public void startApp() {        display = Display.getDisplay(this);        display.setCurrent(mainForm);    }        public void pauseApp() {    }        public void destroyApp(boolean unconditional) {    }        public void run(){        try {            String symbol = symbolField.getString();            statusItem.setText("building request");            SoapObject rpc =                    new SoapObject("urn:PI/DevCentral/SoapService", "KeywordSearchRequest");            SoapObject ro = new SoapObject("urn:PI/DevCentral/SoapService", "KeywordRequest");                        ro.addProperty("keyword", symbol.trim().toLowerCase());            ro.addProperty("tag", "webservices-20");            ro.addProperty("type", "lite");            ro.addProperty("mode", "book");            ro.addProperty("page", "1");            //如果你沒有amazon的開發者標示，那么可以用"0G7AJ85A74ZDRSP838R2"            ro.addProperty("devtag", tagField.getString());            rpc.addProperty("KeywordSearchRequest", ro);            SoapSerializationEnvelope envelope =                    new SoapSerializationEnvelope(SoapEnvelope.VER11);            envelope.bodyOut = rpc;            HttpTransport ht = new HttpTransport("http://soap.amazon.com/onca/soap3");            ht.debug = true;            statusItem.setText("submitting request");                        try{                ht.setProxy(false);                ht.call(null, envelope);                statusItem.setText("analyzing results...");                System.err.println(ht.responseDump);                SoapObject result = (SoapObject) envelope.getResult();                resultVector = (Vector) result.getProperty("Details");                resultList = new List("Result", List.IMPLICIT);                resultList.addCommand(newCommand);                resultList.addCommand(detailCommand);                resultList.setCommandListener(this);                                for(int i = 0; i < resultVector.size(); i++){                    SoapObject detail = (SoapObject) resultVector.elementAt(i);                    resultList.append((String) detail.getProperty("ProductName"), null);                }                display.setCurrent(resultList);            } catch (SoapFault f) {                f.printStackTrace();                System.err.println(ht.requestDump);                System.err.println(ht.responseDump);                statusItem.setText("Error (perhaps keyword not found): "+f.faultstring);            }        } catch (Exception e) {            e.printStackTrace();            statusItem.setText("Error: "+ e.toString());        }    }            public void commandAction(Command c, Displayable d) {        if(c == getCommand){            new Thread(this).start();        } else if(c == newCommand){            display.setCurrent(mainForm);            statusItem.setText("idle");        } else if(c == backCommand){            display.setCurrent(resultList);        } else {            int sel = resultList.getSelectedIndex();            SoapObject details = (SoapObject) resultVector.elementAt(sel);            Form detailForm = new Form("Details: "+resultList.getString(sel));            detailForm.setCommandListener(this);            detailForm.addCommand(backCommand);            PropertyInfo pi = new PropertyInfo();            for(int i = 0; i < details.getPropertyCount(); i++) {                details.getPropertyInfo(i, null, pi);                if(pi.name.toLowerCase().indexOf("url")==-1)                    detailForm.append(new StringItem(pi.name, ""+details.getProperty(i)));            }            display.setCurrent(detailForm);        }    }}