使用java将csv导入mysql

Question

所以我有一个csv文件，并想将其导入到mysql，到目前为止，在phpmyadmin中，我可以使用以下行将其导入：

LOAD DATA INFILE 'C:\\Users\\Angel Silva\\Documents\\test.csv' INTO TABLE registros FIELDS ENCLOSED BY '"' TERMINATED BY ',' ESCAPED BY '"' LINES TERMINATED BY '\n' 

我的java程序是：

public class recover {
public static void main(String[] args){
    try {
        String filename ="C:\\Users\\Angel Silva\\Documents\\test.csv";
        String query=null;
        Class.forName("com.mysql.jdbc.Driver").newInstance();
        Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/gg", "root", "");
        Statement stmt = conn.createStatement();
        query = "LOAD DATA INFILE 'C:\\Users\\Angel Silva\\Documents\\test.csv' INTO TABLE registros FIELDS ENCLOSED BY '\"' TERMINATED BY ',' ESCAPED BY '\"' LINES TERMINATED BY '\\n'";
        stmt.executeQuery(query);
        ResultSet rs = stmt.executeQuery(query);   
    } catch (ClassNotFoundException ex) {
        Logger.getLogger(recover.class.getName()).log(Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        Logger.getLogger(recover.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        Logger.getLogger(recover.class.getName()).log(Level.SEVERE, null, ex);
    } catch (SQLException ex) {
        Logger.getLogger(recover.class.getName()).log(Level.SEVERE, null, ex);
    }
}

}

我收到以下错误：

ene 24, 2016 1:28:33 PM recover main
SEVERE: null
java.sql.SQLException: Row 1 was truncated; it contained more data tha there were input columns
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3277)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3206)
at com.mysql.jdbc.Statement.executeQuery(Statement.java:1232)
at recover.main(recover.java:29)

正如我已经说过的，如果我将查询语句直接输入到phpymyadmin中，我可以恢复表，但是在Java中不起作用

知道我在做什么错吗？

Answer 1

LINES TERMINATED BY '\\r\\n'

（因为它是Windows）

Answer 2

所以最后在阅读mysql doc之后，我将代码修改为：

query="LOAD DATA INFILE 'C:\\\\Users\\\\Angel Silva\\\\Documents\\\\251.csv' INTO TABLE test FIELDS TERMINATED BY ',' ENCLOSED BY '\"' LINES TERMINATED BY '\\r\\n' ";

Answer 3

您必须尝试通过将表列名称附加到查询字符串

" LOAD DATA INFILE 'C:\\Users\\Angel Silva\\Documents\\251.csv' INTO TABLE test FIELDS TERMINATED BY ',' ENCLOSED BY '\"' LINES TERMINATED BY '\\n' (col1,col2,col3) ";

就我而言，它解决了问题...