根据文件夹中的输入源文件，我在运行时创建了n个线程。对于每个线程，我有一个公共类，它具有每个线程使用的所有函数。除了运行批处理文件的部分外，每件事情都完美无缺。
我有创建线程的主类（工作正常）。然后我正在创建具有相关内容的批处理文件（它也运行得很好）。之后，只有1个（可以是任何人，没有特定模式）线程能够执行批处理文件而不能执行其他文件。
代码：
String batch_content = "echo off \n "
+ "powershell.exe -file "
+ utility_path + "convertCSVSwiss.ps1 " + fpath + filename + " -executionpolicy Unrestricted \n ";
String batch_name = "batch_" + fname +"_"+sdf.format(cal.getTime())+ ".bat";
Utils.createBatchFile(batch_content, bat_file_path, batch_name);
Utils.RunBatch(bat_file_path, batch_name,csv_file_path,fname);
Utils.createBatchFile工作正常，可以创建包含批处理内容的批处理文件。但是Utils.RunBatch似乎有一些问题。以下是RunBatch的代码：
public static void RunBatch(String filepath, String filename,String csv_file_path,String fname) throws Exception {
try {
System.out.println("Started Program");
new File(csv_file_path + "\\" + fname).mkdir();
String filePath1 = filepath + filename;
System.out.println("Batch file running is " + filePath1);
Process p = Runtime.getRuntime().exec(new String[] { "cmd.exe", "/c", filePath1 });
p.getOutputStream().close();
p.waitFor();
} catch (Exception e) {
e.printStackTrace();
}
}
我的日志文件打印出来：
Batch file running is C:\ER\ETL\bat files\batch_Sample_Data_10_40_16_12_40_37.bat
Batch file running is C:\ER\ETL\bat files\batch_ssd_10_40_16_12_40_37.bat
但它只运行第一个。
任何帮助都将不胜感激。
如果我错过了解决此问题可能需要的任何信息，我很抱歉。请让我知道，然后我可以编辑我的帖子。
编辑：
这是我的代码。
//main class to start new thread for every excel file present in the source directory
public class LoadData{
public static void main(String[] args) throws Exception{
try{
File folder = new File(fpath);
File[] listoffiles = folder.listFiles();
for (int i = 0; i < listoffiles.length; i++) {
if (listoffiles[i].isFile()) {
filename = listoffiles[i].getName();
c = filename.lastIndexOf(".");
absfilename = filename.substring(0, c);
System.out.println("File name with extension is "+filename);
System.out.println("File name is "+absfilename);
System.out.println("Starting thread for "+absfilename);
ConvertToCSV et = new ConvertToCSV();
et.fpath = fpath;
et.utility_path=utility_path;
et.filename=filename;
et.fname = absfilename;
et.bat_file_path =bat_file_path;
et.tpath =tpath;
et.csv_file_path=csv_file_path;
Thread t = new Thread(et);
t.start();
}
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}
//class to create the batch file content
public class ConvertToCSV implements Runnable{
String fpath,utility_path,filename,fname,bat_file_path,tpath,csv_file_path;
try{
String batch_content = "echo off \n "
+ "powershell.exe -file "
+ path_to_powershell_script_to_convert_excel_into_csv + "convertCSVSwiss.ps1 " + path_and_name_to_the_excel_file " -executionpolicy Unrestricted \n ";
String batch_name = "batch_" + excel_file_name +"_"+sdf.format(cal.getTime())+ ".bat";
Utils.createBatchFile(batch_content, bat_file_path, batch_name);
Utils.RunBatch(bat_file_path, batch_name,csv_file_path,fname);
}
catch (Exception e) {
e.printStackTrace();
}
}
public class Utils{
//function to create the batch file
public static void createBatchFile(String batch_content, String path, String batch_name) throws IOException {
String p = path + batch_name;
File batfile = new File(p);
FileWriter fw = new FileWriter(batfile);
fw.write(batch_content);
fw.close();
}
//function to run the batch file
public static void RunBatch(String filepath, String filename,String csv_file_path,String fname) throws Exception {
try {
System.out.println("Started Program");
new File(csv_file_path + "\\" + fname).mkdir();
String filePath1 = filepath + filename;
System.out.println("Batch file running is " + filePath1);
Process p = Runtime.getRuntime().exec(new String[] { "cmd.exe", "/c", filePath1 });
p.getOutputStream().close();
p.waitFor();
} catch (Exception e) {
e.printStackTrace();
}
}
}
EDIT2：我已添加了ConvertTO CSV的运行。我的代码正在做10件事，其中9件工作正常，除了在同一个文件夹中运行两个具有不同名称的批处理文件
public class ConvertToCSV implements Runnable{
String fpath,utility_path,filename,fname,bat_file_path,tpath,csv_file_path,pg_db_url,pg_db,pg_db_uid,pg_db_pwd,plpgsql_path,Log_Path;
SimpleDateFormat sdf = new SimpleDateFormat("dd_mm_yy_hh_mm_ss");
Calendar cal = Calendar.getInstance();
@Override
public void run() {
try {
runConvertToCSV(fpath,utility_path,filename,fname,bat_file_path,tpath,csv_file_path,plpgsql_path);
} catch (Exception e) {
e.printStackTrace();
}
}
private void runConvertToCSV(String fpath,String utility_path,String filename,String fname,String bat_file,String tpath,String csv_file_path,String plpgsql_path) throws Exception{try{
String batch_content = "echo off \n "
+ "powershell.exe -file "
+ path_to_powershell_script_to_convert_excel_into_csv + "convertCSVSwiss.ps1 " + path_and_name_to_the_excel_file " -executionpolicy Unrestricted \n ";
String batch_name = "batch_" + excel_file_name +"_"+sdf.format(cal.getTime())+ ".bat";
Utils.createBatchFile(batch_content, bat_file_path, batch_name);
Utils.RunBatch(bat_file_path, batch_name,csv_file_path,fname);
}
catch (Exception e) {
e.printStackTrace();
}
}
EDIT3＃： 我的猜测可能是因为所有批处理文件都试图访问相同的PowerShell脚本，这就是它无法正常工作的原因。但后来我为每个批处理文件创建了ps脚本。此外，向stdout添加了错误流以检查是否有任何错误，这就是我得到的：
Standard Error:
The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
At C:\ER\ETL\ETL_SOURCE\convertCSVSwiss_Swiss_Sample_Data.ps1:24 char:2
+ $Worksheet.SaveAs($ExtractedFileName,6)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OperationStopped: (:) [], COMException
+ FullyQualifiedErrorId : System.Runtime.InteropServices.COMException
在不同的行上有相同的错误数。 注意：它与所有批处理文件的ps脚本相同，只运行一个而不运行其他文件。那个人可以是任何人（没有模式）。 如果我手动运行上面的批处理文件，那么它会成功。