methode updatedatabase entierement commentee et documentee
This commit is contained in:
NicolasFabregas
parent
e02bc79c0a
commit
6a45cf5cb0
2 changed files with 64 additions and 92 deletions
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@ -11,7 +11,8 @@ import java.io.*;
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public class DataBase {
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//public static String url="jdbc:mariadb://vachot.fr:3306?user=mynynicolas&password=Bw0po64*";
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public static final int NBCOL =25;
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public static String url="jdbc:mariadb://phpmyadmin.vachot.fr:3306?db=myny&user=mynynicolas&password=Bw0po64*";
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public static final String url="jdbc:mariadb://phpmyadmin.vachot.fr:3306?db=myny&user=mynynicolas&password=Bw0po64*";
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public static final String filePath="c:/Users/cocof/Bureau/nouveau_loto.csv";
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Connection conn;
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/**
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* Le constructeur de DataBase
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@ -77,7 +78,7 @@ public class DataBase {
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" numero_jokerplus ,"+
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" devise ) VALUES \n";
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try {
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Scanner sc = new Scanner(new File("c:/Users/cocof/Bureau/nouveau_loto.csv"));
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Scanner sc = new Scanner(new File(filePath));
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sc.useDelimiter(";|\\n"); //sets the delimiter pattern
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int i=0,j;
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String line=sc.nextLine();
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@ -128,7 +129,7 @@ public class DataBase {
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System.out.println(sql);
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//System.out.println(sql);
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/*CSVReader reader = new CSVReader(new FileReader("c:/Users/cocof/Bureau/nouveau_loto.csv"));
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/*CSVReader reader = new CSVReader(new FileReader(filePath));
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String[] nextLine=reader.readNext();
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while ((nextLine = reader.readNext()) != null) {
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// nextLine[] is an array of values from the line
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@ -307,9 +308,20 @@ public class DataBase {
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/**
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* La methode de mise a jour de la base de donnees
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* @return sql String, contenant la requete SQL
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* @var sc Scanner, l objet qui servira a lire le fichier csv
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* @var line String, ligne contenant l'ajout a effectuer
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* @var i int, un compteur de valeurs lues,
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* @var j int, qui suit i%NBCOL
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* @var nbValAj int qui augmente si on doit ajouter des lignes
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* @var date String, la valeur de la date lue
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* @var jour String, le jour lu
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* @var mois String, le mois lu
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* @var an String, l annee lue
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* @var anEntre long, valeur lue pour l annee et le numero de tirage. sert a definir si la valeur est a ajouter dans la table
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*/
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public void updateDataBase() throws FileNotFoundException {
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String sql="INSERT INTO myny.Test_Table" +
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public String updateDataBase() throws FileNotFoundException {
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String sql="INSERT INTO myny.Test_Table" + //le debut de la requete, specifiant laction a effectuer, la table et la db
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" (annee_numero_de_tirage, "+
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" jour_de_tirage, "+
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" date_de_tirage,"+
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@ -335,130 +347,88 @@ public class DataBase {
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" rapport_du_rang6 ,"+
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" numero_jokerplus ,"+
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" devise ) VALUES \n";
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/* try {
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Scanner sc = new Scanner(new File("c:/Users/cocof/Bureau/nouveau_loto.csv"));
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sc.useDelimiter(";|\\n"); //sets the delimiter pattern
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int i=0,j;
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String line=sc.nextLine();
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line="";
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String date, jour, mois, an;
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String annee_numero_de_tirage=sc.next();
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while (sc.hasNext()&&annee_numero_de_tirage!=){
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j=(i%NBCOL)+1;
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if(j==1) {
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line=line+'(';
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line=line+sc.next().replace(",",".");
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line=line+';';
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}
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if(j<NBCOL && j>1) {
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if (j==2 ||j==11){
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line=line+"\'"+sc.next().replace(",",".")+"\',";
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}
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else if (j==3 ||j==4){
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date=sc.next().replace(",",".");
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jour=date.substring(0,2);
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mois=date.substring(3,5);
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an=date.substring(6,10);
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line=line+"\'"+an+"-"+mois+"-"+jour+"\',";
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}
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else{
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line=line+sc.next().replace(",",".");
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line=line+';';
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}
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}
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if(j==NBCOL) {
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line=line+"\'"+sc.next().replace(",",".")+"\'";
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line=line+')';
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line=line.replaceAll("\\s","");
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line = line.replaceAll(";", ",");
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if(sc.hasNext()) {
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line = line+ ",";
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}
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else{
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line = line+ ";";
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}
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//System.out.println(line);
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sql=sql+line;
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line="";
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}
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i++;
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//System.out.println(sc.nextLine());
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//System.out.print(sc.next()); //find and returns the next complete token from this scanner
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}
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}
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catch (Exception e){
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System.out.println(e.getMessage());
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}
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*/
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try {
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conn = this.getConnection();
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if(conn!=null) {
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Scanner sc = new Scanner(new File("c:/Users/cocof/Bureau/nouveau_loto.csv"));
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sc.useDelimiter(";|\\n"); //sets the delimiter pattern
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String line=sc.nextLine();
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line="";
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int i=0,j=0;
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conn = this.getConnection(); //initialisation de la connexion
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if(conn!=null) { //si la co est bonne
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Scanner sc = new Scanner(new File(filePath)); //lire le fichier donne
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sc.useDelimiter(";|\\n"); //les delimiteurs seront ; et \n
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sc.nextLine(); //on ne conserve pas la premiere ligne, contenant les metadonnees
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int i=0,j=0, nbValAj=0;
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String date, jour, mois, an;
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long anEntre=Long.parseLong(sc.next());
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//sc.nextLine();
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//annee_numero_de_tirage=Long.parseLong(sc.next());
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System.out.println("numero en haut du fichier csv :"+anEntre);
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Statement stmt = conn.createStatement();
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String line="";
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long anEntre=Long.parseLong(sc.next()); //lecture de l id en haut du tableau(donc le plus grand, cest ce qu on a constate en lisant le csv
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//System.out.println("numero en haut du fichier csv :"+anEntre);
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Statement stmt = conn.createStatement(); //recuperation du nb de lignes dans la table
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ResultSet rs = stmt.executeQuery("SELECT MAX(annee_numero_de_tirage) FROM myny.Test_Table;");
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rs.next();
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long maxvaldb=rs.getLong(1);
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//conn.close();
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System.out.println("numero max de la db :"+rs.getLong(1));
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//System.out.println("numero max de la db :"+rs.getLong(1));
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/*comme les nombres de la premiere col sont decroissants, le nb le plus grand est lu en premier,
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on va donc lire les nombres jusqua arriver a la plus haute valeur entree dans la table. On ne
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pourrait probablement pas utiliser cette methode pour remplir la table en entier*/
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while(anEntre>maxvaldb) {
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for (i = 0; i < NBCOL; i++) {
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System.out.println("i: "+i+", j :"+j);
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nbValAj++;//des quon rentre dans la boucle, on sait qu'on va devoir mettre a jour la table car cette valeur est>0
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for (i = 0; i < NBCOL; i++) {//on remplit la ligne en effectuant une lecture par col
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j = (i % NBCOL) + 1;
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if (j == 1) {
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line = line + '(';
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line = line + '(';//debut de la ligne a jouter
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line = line + anEntre;
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line = line + ';';
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line = line + ';';//on met un point virgule mais on le remplacera plus tard
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//sc.next();
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}
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if (j < NBCOL && j > 1) {
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if (j < NBCOL && j > 1) {//pour chaque colonne, on va faire en sorte de mettre le champ dans la onne mise en fore pour qu'il soit accepté par la db
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if (j == 2 || j == 11) {
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line = line + "\'" + sc.next().replace(",", ".") + "\',";
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} else if (j == 3 || j == 4) {
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} else if (j == 3 || j == 4) {//pour les col 3 et 4, il s'agit d'une date, on va donc passer dela forme jj-mm-aaaa a la forme aaaa-mm-jj
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date = sc.next().replace(",", ".");
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jour = date.substring(0, 2);
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mois = date.substring(3, 5);
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an = date.substring(6, 10);
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line = line + "\'" + an + "-" + mois + "-" + jour + "\',";
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} else {
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} else {//pour les autres col, on va simplement les remplir
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line = line + sc.next().replace(",", ".");
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line = line + ';';
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}
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}
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if (j == NBCOL) {
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if (j == NBCOL) {//pour la derniere col
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line = line + "\'" + sc.next().replace(",", ".") + "\'";
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line = line + ')';
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line = line.replaceAll("\\s", "");
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line = line + ')';//on la remplit
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line = line.replaceAll("\\s", "");//on remplace les caracteres qui nous derangent
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line = line.replaceAll(";", ",");
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anEntre = Long.parseLong(sc.next());
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if (anEntre > maxvaldb) {
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anEntre = Long.parseLong(sc.next());//on lit le prochain id de l'entree
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if (anEntre > maxvaldb) {//on defini si on doit encore ajouter des lignes a la requete
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line = line + ",";
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} else {
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} else {//ou si on doit cloturer la requete
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line = line + ";";
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}
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//System.out.println(line);
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sql = sql + line;
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sql = sql + line + "\n";//on ajoute la ligne a la requete
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line = "";
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}
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}
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}
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System.out.println(sql);
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if (nbValAj>0) {//on effectue la requete si on a des maj a faire
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try {
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conn = this.getConnection();
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if (conn != null) {
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stmt = conn.createStatement();
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stmt.executeQuery(sql);
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conn.commit();
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//conn.close();
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System.out.println("update validee");
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}
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} catch (SQLException e) {
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System.out.println("oskour into update");
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System.out.println(e.getMessage());
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}
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}
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}
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} catch (SQLException e) {
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System.out.println("oskour update");
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System.out.println(e.getMessage());
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}
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return sql;
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}
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