How to know if the path given exists or not???

Question

i have a string containing a path (of a directory or a file(.pdf)
i want to test if the path given exist in the hard disc or not i have tested with file.canRead but there is no results
please help???

Answer 1

the path are estracted from a database and i will check if these patwh exists or not in the hard disc
this is the method ; it read from the 1 tabe ,the second (and test if inthis path there is any .pdf),the third (and test if inthis path there is any .pdf),
public void parcours()
/*2*/ {
String ParcDep="select code_dp from departement" ;
String ParcOrg="select code_or from organisme o,departement d where d.code_dp=o.code_dp and o.code_dp=? ";
String ParcSor="select code_so from sous_organisme so,organisme o,departement d where so.code_or=o.code_or and d.code_dp=o.code_dp and so.code_or=? ";
Statement st=autentif.getStatement();
try
/*3*/{
Connection connec=autentif.getConnection();
PreparedStatement ps = connec.prepareStatement(ParcOrg);
PreparedStatement ps1 = connec.prepareStatement(ParcSor);
ResultSet rsd = st.executeQuery(ParcDep);
while(rsd.next())
/*4*/ {
System.out.println("boucle departement");
String Dep=rsd.getString(1);
String chem="c:\\Etats_insaf\\".concat(Dep);
System.out.println(chem);
String DepChem=chem.concat("\\");
System.out.println(DepChem);
ps.setString(1,Dep);
ResultSet rso = ps.executeQuery();
while(rso.next())
/*5*/ {
System.out.println("boucle organisme");
String Org=rso.getString(1);
System.out.println(Org);
String chem1=DepChem.concat(Org);
String DepOrgChem=chem1.concat("\\");
System.out.println(DepOrgChem);
File dirOrg=new File(chem1);
/*System.out.println("le chemin de lorganisme est");
System.out.println(dirOrg);
System.out.println("esqu il existe :");
System.out.println(dirOrg.exists());*/
if(dirOrg.exists()==false){ System.out.println("le chemin de l organisme au dessus n existe pas");}
else{/*11*/
FilenameFilter filter = new FilenameFilter()
public boolean accept(File dirOrg, String name)
return name.endsWith(".PDF");
String[] childOrgp=dirOrg.list(filter);
System.out.println("le tableau");
System.out.println(childOrgp);
if (childOrgp == null)System.out.println("pas de doc pdfdans org");
else
{/*6*/
System.out.println("aaaaaaaaaaaaaaaaa");
System.out.println(childOrgp.length);
for(int i=0;i<childOrgp.length;i++)
{/*7*/
System.out.println("le chemin du doc .pdf dans lorganisme est");
System.out.println(childOrgp);
System.out.println("esqu il existe :");
System.out.println(dirOrg.exists());
Statement stat=autentif.getStatement();
String reqnum="select cod_ed.nextval from dual";
ResultSet rsnum=stat.executeQuery(reqnum);
rsnum.next();
int num1=rsnum.getInt(1);
System.out.println(num1);
String num= Integer.toString(num1);
System.out.println("num");
System.out.println(num);
System.out.println("bbbbbbbbbbbbbbbbbb");
String filename = childOrgp;
String nom=DepOrgChem.concat(filename);
System.out.println("oooooooooooooooo");
System.out.println(nom);
String typef1=filename.substring(0,filename.indexOf("."));
int lg=nom.length();
String nomfin=nom.substring(3,lg);
String req="insert into etat_d'edition (code_ed,path_ed,taille_ed,telecharger_ed,code_te,code_or,code_so) values '"+num+"','"+nomfin+"',null,null,'"+typef1+"','"+Org+"',null )";
System.out.println(req);
st.execute(req);
}/*7*/
}/*6*/
ps1.setString(1,Org);
ResultSet rss = ps1.executeQuery();
while(rss.next())
{/*8*/
System.out.println("boucle Sous organisme");
String Sor=rss.getString(1);
System.out.println(Sor);
String chem2=DepOrgChem.concat(Sor);
String DepOrgSorChem=chem2.concat("\\");
System.out.println(DepOrgSorChem);
File dirSor=new File(chem2);
System.out.println("le chemin du sous organisme est");
System.out.println(dirSor);
System.out.println("esqu il existe :");
System.out.println(dirSor.exists());
if(dirSor.exists()==false){ System.out.println("le chemin de l organisme au dessus n existe pas"); }
else{/*12*/
FilenameFilter filter1 = new FilenameFilter()
public boolean accept(File dirSor, String name)
return name.endsWith(".PDF");
String[] childSor=dirSor.list(filter1);
if (childSor == null)System.out.println("pas de doc pdf");
else
{/*9*/
for(int j=0;j<childSor.length;j++)
{/*10*/
Statement stat=autentif.getStatement();
String reqnum1="select cod_ed.nextval from dual";
ResultSet rsnum1=stat.executeQuery(reqnum1);
rsnum1.next();
int num2=rsnum1.getInt(1);
System.out.println(num2);
String num1= Integer.toString(num2);
System.out.println("num1");
System.out.println(num1);
String filename1 = childSor[j];
String nom=DepOrgSorChem.concat(filename1);
String typef=filename1.substring(0,filename1.indexOf("."));
int longu=nom.length();
String nomfin1=nom.substring(3,longu);
String req2 ="insert into etat_edition(code_ed,path_ed,taille_ed,telecharger_ed,code_te,code_or,code_so) values('"+num1+"','"+nomfin1+"',null,null,'"+typef+"','"+Org+"','"+Sor+"' )";
st.execute(req2);
}/*10*/
}/*9*/
}/*12*/
}/*8*/
}/*5*/
}/*11*/
}/*4*/
}/*3*/
catch(Exception ex)
System.out.println("ayayayayayayayaaaaaa");
System.out.println(ex.getMessage());
}/*2*/
it must test if all the path extracted exists or not but it go to the first department (because it exist) then it stops (because the second department dosnot exist)