我有一个cvs文件,其架构是,每个字段都被“包围”,并且每个元组都是一个带有\ n
的换行符所以在我的Java文件中,我写了
String path = "o.csv";
String esquel = " LOAD DATA LOCAL INFILE " + path +
" INTO TABLE recommendations " +
" FIELDS TERMINATED BY \',\' ENCLOSED BY \'\"'" +
" LINES TERMINATED BY \'\\n\'";
我用以下语句执行语句
statement.executeUpdate(esquel);
但它会抛出一个SQLException,它说:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:你有一个 SQL语法错误;查看与您的手册相对应的手册 MySQL服务器版本,用于在'o.csv INTO附近使用正确的语法 表建议字段由'''封装'''LINES' 在第1行
我的错误是什么?
如果你能帮助我,我将不胜感激。
由于
答案 0 :(得分:1)
哦,我明白了!我没有用'。
包围我的路径文件新的sql语句应为:
String esquel = " LOAD DATA LOCAL INFILE '" + path +
"' INTO TABLE recommendations " +
" FIELDS TERMINATED BY \',\' ENCLOSED BY \'\"'" +
" LINES TERMINATED BY \'\\n\'";
答案 1 :(得分:1)
这是我测试的工作代码:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class LoadTRPLog2MySql {
public static void main(String[] args) {
Class driver_class = null;
try {
driver_class = Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
return;
}
System.out.println("found driver" + driver_class);
Connection connection = null;
try {
connection = DriverManager.getConnection("jdbc:mysql://mysqlserver.com:3306/dbname", "myid","pwd");
} catch (SQLException e) {
e.printStackTrace();
}
try {
System.out.println("Established connection to " + connection.getMetaData().getURL());
} catch (SQLException e1) {
e1.printStackTrace();
}
Statement statement = null;
try {
statement = connection.createStatement();
Statement statement1 = connection.createStatement();
//windows
//statement1.executeUpdate( "LOAD DATA LOCAL INFILE 'C:\\Users\\senthil_sivasamy\\Documents\\Projects\\messageprocessing\\log.txt' INTO TABLE trpwatchlog_tb FIELDS TERMINATED BY ' ' LINES TERMINATED BY '\\n'");
//linux ( " LOAD DATA LOCAL INFILE '/home/username/logname.log' INTO TABLE logname.log FIELDS TERMINATED BY ' ' LINES TERMINATED BY '\\n'");
statement.executeUpdate( "LOAD DATA LOCAL INFILE '/home/username/avail30trplog' INTO TABLE logname.log FIELDS TERMINATED BY ' ' LINES TERMINATED BY '\\n'");
statement1.execute("select * from dbname.tablelog_tb");
ResultSet rs = statement1.getResultSet();
System.out.println("Row hostname and timestamp");
while(rs.next()) {
System.out.println("Row hostname and timestamp");
System.out.println(rs.getRow());
System.out.println(""+rs.getString("hostname"));
System.out.println(""+rs.getString("timestamp"));
}
rs.close();
} catch(SQLException e) {
} finally {
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
if (connection != null) {
try {
connection.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}