[英]mysql LOAD DATA LOCAL INFILE syntax error when executed via JDBC
我正在嘗試使用此示例查詢從本地 csv 文件加載內容:
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`);
從 MySQL 執行查詢效果很好,但是,當我嘗試從 JDBC 執行相同的查詢時,我得到一個語法錯誤:
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
這是我的代碼:
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());
}
這是我正在使用的驅動程序:
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.20</version>
</dependency>
我錯過了什么?
您的代碼試圖一次執行兩個語句( SET
語句和LOAD DATA
語句),但Statement.execute(...)
只接受一個語句,而不接受多個語句。
您可以嘗試單獨執行這些語句(我通常不使用 MySQL,所以我不確定在這種情況下是否有效),或者可以通過添加連接屬性將 MySQL 連接器/J 驅動程序配置為允許多個語句連接字符串中的allowMultiQueries=true
。
為了將來參考,我還必須添加:
&allowLoadLocalInfile=true
到連接字符串以避免錯誤:
ERROR 3950 (42000): Loading local data is disabled; this must be enabled on both the client and server side
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