所以我创建了一个程序,允许用户在手机上购买巴士票,并在交易完成后立即下载 pdf 文件。这是通过检查 url 是否已更改并包含关键字来完成的:TicsnetReceipt.aspx 让我知道交易已完成。这很好用,因为我还保存了其他信息,例如来自 url 的姓名/电子邮件以供将来使用。
然后我使用肥皂下载文件:
public String getPDFxml(String ReferenceID){
String NAMESPACE = "http://tempuri.org/";
String METHOD_NAME = "GetPDFxml";
String SOAP_ACTION = "http://tempuri.org/GetPDFxml";
String URL = "http://77.40.188.73:28082/SasMobileWS/SasMobile.asmx?op=GetPDFxml";
try {
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
PropertyInfo pi = new PropertyInfo();
pi.setName("Reference");
pi.setValue(ReferenceID);
request.addProperty(pi);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet=true;
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapPrimitive result = (SoapPrimitive)envelope.getResponse();
String strRes = result.toString();
String temp[];
temp = strRes.split("TravelDate");
String Date[] = temp[1].split(">|<|/");
String theDate = Date[1];
return(theDate);
} catch (IOException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
}
return null;
}
public void getPDFbytes(String TransactionID, String Date){
String NAMESPACE = "http://tempuri.org/";
String METHOD_NAME = "GetPDFbytes";
String SOAP_ACTION = "http://tempuri.org/GetPDFbytes";
String URL = "http://77.40.188.73:28082/SasMobileWS/SasMobile.asmx?op=GetPDFbytes";
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
PropertyInfo pi = new PropertyInfo();
pi.setName("Reference");
pi.setValue(TransactionID);
request.addProperty(pi);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet=true;
envelope.setOutputSoapObject(request);
try {
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, envelope);
} catch (Exception e) {
e.printStackTrace();
}
SoapObject resultsRequestSOAP = null;
try{
resultsRequestSOAP = (SoapObject) envelope.getResponse();
}catch (Exception e) {
try{
resultsRequestSOAP = (SoapObject) envelope.bodyIn;
}catch(Exception f){
f.printStackTrace();
}
}
byte[] result = null;
try {
result = Base64.decode(resultsRequestSOAP.getProperty("GetPDFbytesResult").toString());
} catch(Exception e){
e.printStackTrace();
}
try {
Date = Date.replace(".", "");
FileOutputStream fos = openFileOutput(Date + "_" + TransactionID + ".pdf", Context.MODE_WORLD_READABLE);
fos.write(result);
fos.close();
} catch(FileNotFoundException ex){
ex.printStackTrace();
} catch(IOException ioe){
ioe.printStackTrace();
}
}
这一切在我尝试过的其他模型上都可以正常工作,但在 S3 上,它不会下载文件,并在用户尝试在查看器中打开文件时告诉用户该文件不存在。
我 99% 确定肥皂有问题,我只是想不通。但是,如果这看起来不错,那么我不知道发生了什么:p
提前致谢 :)
在做了更多测试后,我知道问题来自:
androidHttpTransport.call(SOAP_ACTION, envelope);
这似乎根本不会读取数据,这很奇怪,因为它应该与上述方法中的输入相同。两种方法都接受一个字符串 Reference(实际上是一个数字),第一个方法 GetPDFxml 返回一个字符串,GetPDFbytes 返回 base64Binary。
就在程序崩溃之前,我从信封获取值,它说:
envelope
SoapSerializationEnvelope (id=830066090736)
addAdornments true
avoidExceptionForUnknownProperty false
bodyIn SoapFault (id=830066150416)
bodyOut SoapObject (id=830066090472)
classToQName Hashtable (id=830066090944)
dotNet true
enc "http://schemas.xmlsoap.org/soap/encoding/" (id=830065748280)
encodingStyle null
env "http://schemas.xmlsoap.org/soap/envelope/" (id=830065748552)
headerIn null
headerOut null
idMap Hashtable (id=830066090864)
implicitTypes false
multiRef Vector (id=830066102400)
properties Hashtable (id=830066090824)
qNameToClass Hashtable (id=830066090904)
version 110
xsd "http://www.w3.org/2001/XMLSchema" (id=830065748824)
xsi "http://www.w3.org/2001/XMLSchema-instance" (id=830065749064)
然后既不是信封.getResponse(); 或 resultsRequestSOAP = (SoapObject) 信封.bodyIn;返回一个有效值。