通过JDBC执行时,mysql LOAD DATA LOCAL INFILE语法错误

问题描述 投票:1回答:2

我正在尝试使用此示例查询从本地的csv文件加载内容:

SET GLOBAL local_infile=1; LOAD DATA LOCAL INFILE 'C:/afc_orders.csv' INTO TABLE `afc_report`.`afc_orders` FIELDS TERMINATED BY ';' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n' IGNORE 1 ROWS (`type_o`,`n_order`,`n_return`);

从MySQL执行查询非常有效,但是,当我尝试从JDBC执行相同的查询时,出现语法错误:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LOAD DATA LOCAL INFILE 'C:/afc_orders.csv' INTO TABLE `afc_report`.`afc_orders` ' at line 1

这是我的代码:

    Connection conn = null;

    String url = "jdbc:mysql://" + mysqlHost + ":" + mysqlPort + "/" + mysqlDatabase + "?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC";

    try {
        conn = DriverManager.getConnection(url, mysqlUser, mysqlPassword);

        Statement stmt = conn.createStatement();


        String sql = "SET GLOBAL local_infile=1; LOAD DATA LOCAL INFILE 'C:/afc_orders.csv' INTO TABLE `afc_report`.`afc_orders` FIELDS TERMINATED BY ';' OPTIONALLY ENCLOSED BY '\"' LINES TERMINATED BY '\\n' (`type_o`,`n_order`,`n_return`);";
        System.out.println(sql);
        stmt.execute(sql);

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

这是我正在使用的驱动程序:

    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.20</version>
    </dependency>

我想念什么?

java mysql jdbc load-data-infile
2个回答
1
投票

您的代码试图同时执行两个语句(SET语句和LOAD DATA语句,但是Statement.execute(...)仅接受单个语句,而不是多个语句。

[您可以尝试分别执行这些语句(我通常不使用MySQL,因此不确定在这种情况下是否可行),或者可以将MySQL Connector / J驱动程序配置为允许添加多条语句,连接字符串中的连接属性allowMultiQueries=true


0
投票

供将来参考,我还必须添加:

&allowLoadLocalInfile=true

到连接字符串以避免错误:

ERROR 3950 (42000): Loading local data is disabled; this must be enabled on both the client and server side
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