从文本文件更新未显示正确数据的数据库表

Question

尝试从eclipse和文本文件更新数据库表时，使用我的SQL语句不会将数字放在正确的列中。它更新记录，但不是想要的结果，所以我只能假定它在setInt或类似的参数中。任何帮助表示赞赏。

 String query; 
     PreparedStatement statement; 


     query = "UPDATE matches SET home_scores_tries = ?, away_scores_tries = ?, home_penalties = ?, away_penalties = ?, home_conversion = ?, away_conversion = ? WHERE match_id = ?"; 


     statement = con.prepareStatement(query); 

     ArrayList<Scores> listScores = getListScoresFromTextFile("/Users/Ashley/Documents/workspace/Programming Group Project/src/FileUpload/Round_1.txt"); 

     for(int i = 0; i<listScores.size(); i++){ 


      statement.setInt(1, listScores.get(i).getHome_scores_tries()); 
      statement.setInt(2, listScores.get(i).getAway_scores_tries()); 
      statement.setInt(3, listScores.get(i).getHome_penalties()); 
      statement.setInt(4, listScores.get(i).getAway_penalties()); 
      statement.setInt(5, listScores.get(i).getHome_conversion()); 
      statement.setInt(6, listScores.get(i).getAway_conversion()); 
      statement.setInt(7, listScores.get(i).getMatch_id()); 





      statement.executeUpdate(); 
      System.out.println("Insert Success"); 

     } 





    } catch (Exception err) { 
     System.out.println(err.getMessage()); 
    } 

} 

public static ArrayList<Scores> getListScoresFromTextFile(String filePath) { 
    FileInputStream fis = null; 
    InputStreamReader isr = null; 
    BufferedReader br = null; 
    ArrayList<Scores> listScores = new ArrayList<Scores>(); 
    try { 
     fis = new FileInputStream(filePath); 
     isr = new InputStreamReader(fis); 
     br = new BufferedReader(isr); 

     String line = null; 

     String[] strScores = null; 

     // loop and get all data from text file 

     while (true) { 
      line = br.readLine(); 
      // check line empty, exit loop 
      if (line == null) { 
       break; 
      } else { 
       strScores = line.split(","); 
       listScores.add(new Scores (Integer.parseInt(strScores[0]),Integer.parseInt(strScores[1]), 
         Integer.parseInt(strScores[2]),Integer.parseInt(strScores[3]),Integer.parseInt(strScores[4]), 
         Integer.parseInt(strScores[5]),Integer.parseInt(strScores[6]))); 

      } 
     } 
    } catch (Exception e) { 
     System.out.println("Read File Error"); 
     e.printStackTrace(); 
    } finally { 

     try { 
      br.close(); 
      isr.close(); 
      fis.close(); 
     } catch (IOException e) { 

     } 

    } 
    return listScores; 

} 
} 

和txt文件如下

1,2,3,4,5,6,1 
1,2,3,4,5,6,2 
1,2,3,4,5,6,3 
1,2,3,4,5,6,4 
1,2,3,4,5,6,5 
1,2,3,4,5,6,6 
1,2,3,4,5,6,7 
1,2,3,4,5,6,8 
1,2,3,4,5,6,9 
1,2,3,4,5,6,10 
1,2,3,4,5,6,11 
1,2,3,4,5,6,12 
1,2,3,4,5,6,13 
1,2,3,4,5,6,14 
1,2,3,4,5,6,15 


public class Scores { 


private int match_id; 
private int home_scores_tries; 
private int home_penalties; 
private int home_conversion; 
private int away_scores_tries; 
private int away_penalties; 
private int away_conversion; 
/** 
* @return the match_id 
*/ 
public int getMatch_id() { 
    return match_id; 
} 
/** 
* @param match_id the match_id to set 
*/ 
public void setMatch_id(int match_id) { 
    this.match_id = match_id; 
} 
/** 
* @return the home_scores_tries 
*/ 
public int getHome_scores_tries() { 
    return home_scores_tries; 
} 
/** 
* @param home_scores_tries the home_scores_tries to set 
*/ 
public void setHome_scores_tries(int home_scores_tries) { 
    this.home_scores_tries = home_scores_tries; 
} 
/** 
* @return the home_penalties 
*/ 
public int getHome_penalties() { 
    return home_penalties; 
} 
/** 
* @param home_penalties the home_penalties to set 
*/ 
public void setHome_penalties(int home_penalties) { 
    this.home_penalties = home_penalties; 
} 
/** 
* @return the home_conversion 
*/ 
public int getHome_conversion() { 
    return home_conversion; 
} 
/** 
* @param home_conversion the home_conversion to set 
*/ 
public void setHome_conversion(int home_conversion) { 
    this.home_conversion = home_conversion; 
} 
/** 
* @return the away_scores_tries 
*/ 
public int getAway_scores_tries() { 
    return away_scores_tries; 
} 
/** 
* @param away_scores_tries the away_scores_tries to set 
*/ 
public void setAway_scores_tries(int away_scores_tries) { 
    this.away_scores_tries = away_scores_tries; 
} 
/** 
* @return the away_penalties 
*/ 
public int getAway_penalties() { 
    return away_penalties; 
} 
/** 
* @param away_penalties the away_penalties to set 
*/ 
public void setAway_penalties(int away_penalties) { 
    this.away_penalties = away_penalties; 
} 
/** 
* @return the away_conversion 
*/ 
public int getAway_conversion() { 
    return away_conversion; 
} 
/** 
* @param away_conversion the away_conversion to set 
*/ 
public void setAway_conversion(int away_conversion) { 
    this.away_conversion = away_conversion; 
} 
public Scores(int match_id, int home_scores_tries, int home_penalties, int home_conversion, int away_scores_tries, 
     int away_penalties, int away_conversion) { 
    super(); 
    this.match_id = match_id; 
    this.home_scores_tries = home_scores_tries; 
    this.home_penalties = home_penalties; 
    this.home_conversion = home_conversion; 
    this.away_scores_tries = away_scores_tries; 
    this.away_penalties = away_penalties; 
    this.away_conversion = away_conversion; 
} 

}

Answer 1

1,2,3,4,5,6,13 
1,2,3,4,5,6,14 
1,2,3,4,5,6,15 

在我看来像 “匹配ID” 是在您的数据的最后一列。

listScores.add(new Scores (Integer.parseInt(strScores[0]), 
    Integer.parseInt(strScores[1]), 
    Integer.parseInt(strScores[2]), 
    Integer.parseInt(strScores[3]), 
    Integer.parseInt(strScores[4]), 
    Integer.parseInt(strScores[5]), 
    Integer.parseInt(strScores[6]))); 

但是你刚才分析数据，并创建订单中的数据进行解析您的Scores对象。

public Scores(int match_id, 
    int home_scores_tries, 
    int home_penalties, 
    int home_conversion, 
    int away_scores_tries, 
    int away_penalties, 
    int away_conversion) 

问题是你的Scores对象期望第一个值是“匹配id”。