我创建了一个允许创建zip文件的按钮。拉链文件的功能正常工作,但是当我通过按钮(在JS文件中)给她打电话时,它会崩溃并且它会给出一个空白页面(我想我不管理输出流) 会有点想法 这是我的代码:
按钮
isc.ToolStripButton.create({
ID: "BooksApp_GetXmlImage_Button"
,autoDraw:false
,icon: getUIIcon("icon_xml_16")
,prompt: getUIMsg("book_report_get_xml",4)
,showHover:true
,hoverStyle:"book_hover_style"
,click : function () {
BooksApp_Action_loadFile("objx");
// isc.say("test");
}
});
function to call the zipfile() method:
function BooksApp_Action_loadFile(p_UsedFormat) {
var tmpBookID = BooksApp_Application.FP_BookID;
var tmpIDs = BooksApp_Application.FP_fct_getSelectedPOVIDs();
var tmpUsr_ID = FPIUser.FP_fct_getID();
var tmpFormat = p_UsedFormat;
var showInWindow=false;
books_objects.exportData(
{
r_book_idnum : tmpBookID
,sBook_ID : tmpBookID
,sPOV_IDs : tmpIDs
,sUser_ID : tmpUsr_ID
,sFormat : tmpFormat
}
,{ operationId: "customExport"
,exportDisplay: (showInWindow ? "window" : "download") }
,function (dsResponse, data, dsRequest) {
//Never called
BooksApp_Action_Log("BooksApp_Action_loadFile:"+data);
}
);
}
customExport() function
public static String customExport(RPCManager rpc,
HttpServletResponse response) throws Exception {
String sReturn = _Return_OK;
try {
// setting doCustomResponse() notifies the RPCManager that we'll
// bypass RPCManager.send
// and instead write directly to the servletResponse output stream
rpc.doCustomResponse();
RequestContext.setNoCacheHeaders(response);
writeServerDebug("customExport : start");
DSRequest req = rpc.getDSRequest();
List<?> results = req.execute().getDataList();
String sReqData = (String) req.getParameter("exportDisplay");
String sReqData_sBook_ID = "" + req.getCriteriaValue("sBook_ID");
String sReqData_sPOV_IDs = "" + req.getCriteriaValue("sPOV_IDs");
String sReqData_sUser_ID = "" + req.getCriteriaValue("sUser_ID");
String sReqData_sFormat = "" + req.getCriteriaValue("sFormat");
StringBuilder content = new StringBuilder("get (sReqData:"
+ sReqData + ",sBook_ID:" + sReqData_sBook_ID
+ ",sPOV_IDs:" + sReqData_sPOV_IDs + ",sUser_ID:"
+ sReqData_sUser_ID + ",sFormat:" + sReqData_sFormat + ")"
+ results.size() + " line(s):");
for (Iterator<?> i = results.iterator(); i.hasNext();) {
Map<?, ?> record = (Map<?, ?>) i.next();
content.append("\n" + Books.Column_IDNum + ":"
+ record.get(Books.Column_IDNum));
content.append("\n" + Books.Column_Name + ":"
+ record.get(Books.Column_Name));
}
writeServerDebug("The content is \n" + content.toString());
// Create the new Office Engine
OfficeEngine myOfficeEngine = new OfficeEngine();
boolean bIsConnected = myOfficeEngine._RepositoryBridge
.connectSourceDataBase(false);
if (bIsConnected) {
//Connected to the repository, so get the files
if (sReqData_sFormat.equalsIgnoreCase("pdf") || sReqData_sFormat.equalsIgnoreCase("pptx")) {
//The book end user format
String sReturnPptx = myOfficeEngine.performGeneratePptx(
req.getHttpServletRequest(), response,
sReqData_sBook_ID, sReqData_sPOV_IDs,
sReqData_sUser_ID, sReqData_sFormat);
writeServerDebug("customExport call performGeneratePptx, return is "
+ sReturnPptx);
}
else {
AppZip appZip = new AppZip();
appZip.ZipFile(" ", " ");
String r = "sReturn_OK";;
return r;
}
//Free the connection to repository
myOfficeEngine._RepositoryBridge.freeConnectionSource();
} else {
response.setContentType("text/plain");
response.addHeader("content-disposition",
"attachment; filename=book.txt");
ServletOutputStream os = response.getOutputStream();
os.print(content.toString());
os.flush();
}
} catch (Exception e) {
writeServerDebug("ERROR:" + e.getLocalizedMessage());
sReturn = Repository._Return_KO;
}
return sReturn;
}