我需要帮助提取Business Objects中文件夹中的所有文件名。使用我现在的代码，我可以获得文件夹中单个文件的名称。我想获取该文件夹中的所有文件名。变量temp是我输入所需文件名的位置。变量doc是检索文件名的位置，变量reportname是我存储doc以写入外部电子表格的位置。
public class variable {
private static String expressionEx;
private static String nameEx;
private static String nameXE[] = new String[11];
private static String expressionXE[] = new String[11];
private static String query;
public static String reportName;
private static String reportPath;
/** This method writes data to new excel file * */
public static void writeDataToExcelFile(String fileName) {
String[][] excelData = preapreDataToWriteToExcel();// Creates first
// sheet in Excel
String[][] excelData1 = preapreDataToWriteToExcel1();// Creates
// second
// sheet in
// Excel
String[][] excelData2 = preapreDataToWriteToExcel2();// Creates third
// sheet in
// Excel
HSSFWorkbook myReports = new HSSFWorkbook();
HSSFSheet mySheet = myReports.createSheet("Variables");
HSSFSheet mySheet1 = myReports.createSheet("SQL Statement");
HSSFSheet mySheet2 = myReports.createSheet("File Info");
// edits first sheet
mySheet.setFitToPage(true);
mySheet.setHorizontallyCenter(true);
mySheet.setColumnWidth(0, 800 * 6);
mySheet.setColumnWidth(1, 7000 * 6);
// edits second sheet
mySheet1.setFitToPage(true);
mySheet1.setHorizontallyCenter(true);
mySheet1.setColumnWidth(0, 800 * 6);
mySheet1.setColumnWidth(1, 7000 * 6);
// edits third sheet
mySheet2.setFitToPage(true);
mySheet2.setHorizontallyCenter(true);
mySheet2.setColumnWidth(0, 800 * 6);
mySheet2.setColumnWidth(1, 2000 * 6);
HSSFRow myRow = null;
HSSFCell myCell = null;
// first sheet
for (int rowNum = 0; rowNum < excelData[0].length; rowNum++) {
myRow = mySheet.createRow(rowNum);
for (int cellNum = 0; cellNum < 4; cellNum++) {
myCell = myRow.createCell(cellNum);
myCell.setCellValue(excelData[rowNum][cellNum]);
}
}
try {
FileOutputStream out = new FileOutputStream(fileName);
myReports.write(out);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
// second sheet
for (int rowNum = 0; rowNum < excelData1[0].length; rowNum++) {
myRow = mySheet1.createRow(rowNum);
for (int cellNum = 0; cellNum < 4; cellNum++) {
myCell = myRow.createCell(cellNum);
myCell.setCellValue(excelData1[rowNum][cellNum]);
}
}
try {
FileOutputStream out = new FileOutputStream(fileName);
myReports.write(out);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
// third sheet
for (int rowNum = 0; rowNum < excelData2[0].length; rowNum++) {
myRow = mySheet2.createRow(rowNum);
for (int cellNum = 0; cellNum < 4; cellNum++) {
myCell = myRow.createCell(cellNum);
myCell.setCellValue(excelData2[rowNum][cellNum]);
}
}
try {
FileOutputStream out = new FileOutputStream(fileName);
myReports.write(out);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* @param args
*/
public static String password;
public static String username;
public static String temp;
public variable() throws FileNotFoundException {
// TODO Auto-generated method stub
IEnterpriseSession oEnterpriseSession = null;
ReportEngines reportEngines = null;
try {
// String cmsname = "det0190bpmsdev3";
// String authenticationType = "secEnterprise";
String cmsname = "";
String authenticationType = "";
// Log in.
oEnterpriseSession = CrystalEnterprise.getSessionMgr().logon(
username, password, cmsname, authenticationType);
if (oEnterpriseSession == null) {
} else {
// Process Document
reportEngines = (ReportEngines) oEnterpriseSession
.getService("ReportEngines");
ReportEngine wiRepEngine = (ReportEngine) reportEngines
.getService(ReportEngines.ReportEngineType.WI_REPORT_ENGINE);
IInfoStore infoStore = (IInfoStore) oEnterpriseSession
.getService("InfoStore");
String query = "select SI_NAME, SI_ID from CI_INFOOBJECTS "
+ "where SI_KIND = 'Webi' and SI_INSTANCE=0 and SI_NAME ='"
+ temp + "'";
IInfoObjects infoObjects = (IInfoObjects) infoStore
.query(query);
for (Object object : infoObjects) {
IInfoObject infoObject = (IInfoObject) object;
String path = getInfoObjectPath(infoObject);
if (path.startsWith("/")) {
DocumentInstance widoc = wiRepEngine
.openDocument(infoObject.getID());
String doc = infoObject.getTitle();
reportPath = path;// this is the path of document
$$$$$$$$$ reportName = doc;// this is the document name
printDocumentVariables(widoc);
purgeQueries(widoc);
widoc.closeDocument();
}
}
// End processing
}
} catch (SDKException sdkEx) {
} finally {
if (reportEngines != null)
reportEngines.close();
if (oEnterpriseSession != null)
oEnterpriseSession.logoff();
}
}
public static void printDocumentVariables(DocumentInstance widoc) {
int i = 0;
// this is the report documents variables
ReportDictionary dic = widoc.getDictionary();
VariableExpression[] variables = dic.getVariables();
for (VariableExpression e : variables) {
nameEx = e.getFormulaLanguageID();
expressionEx = e.getFormula().getValue();
// stores variables in array
nameXE[i] = nameEx;
expressionXE[i] = expressionEx;
i++;
}
}
public static String getInfoObjectPath(IInfoObject infoObject)
throws SDKException {
String path = "";
while (infoObject.getParentID() != 0) {
infoObject = infoObject.getParent();
path = "/" + infoObject.getTitle() + path;
}
return path;
}
@SuppressWarnings("deprecation")
public static void purgeQueries(DocumentInstance widoc) {
DataProviders dps = widoc.getDataProviders();
for (int i = 0; i < dps.getCount(); ++i) {
DataProvider dp = (DataProvider) dps.getItem(i);
if (dp instanceof SQLDataProvider) {
SQLDataProvider sdp = (SQLDataProvider) dp;
sdp.purge(true);
query = sdp.getQuery().getSQL();
}
}
答案 0 :(得分：1)
如果Temp将包含唯一文件夹的名称，则可以使用此代码。将String query =行替换为：
IInfoObjects oParents = infoStore.query("select si_id from ci_infoobjects where si_kind = 'folder' and si_name = '" + temp + "'");
if(oParents.size()==0)
return; // folder name not found
IInfoObject oParent = (IInfoObject)oParents.get(0);
String query = "select SI_NAME, SI_ID from CI_INFOOBJECTS "
+ "where SI_KIND = 'Webi' and si_parentid = " + oParent.getID();
我在代码中没有看到您填充temp，username或password变量，但我认为您只是故意将其从列表中删除。显然他们需要定义。
我在你的代码中注意到的其他一些事情：
query的实例变量中，但您在query构造函数中也有一个名为variable的局部变量。如果您需要SQL值，这很可能会导致冲突。SDKException你有一个“空捕获”。 SDKExceptions可能由于各种原因而发生，因为您不知道程序失败的原因。你应该至少打印出异常，或者让它冒泡。