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MYSQL的LOAD方法都必须建立在mysql服务允许使用该命令的情况下:
开启该命令的方法:
1、在实例对应的my.cnf(windows为my.ini)中添加一行local-infile=1(默认好像是开启的),改为0即关闭,LOAD方式禁用。
2、加参数local-infile=1(默认是开启的,除非my.cnf中配置了禁止使用load才这样启动)启动mysql,"/usr/local/mysql/bin/mysqld_safe --user=mysql --local-infile=1 &"
注:当数据库实例(my.cnf)指定了secure-file-priv="D:/MySQL/Uploads",则只能在该目录下操作文件
一、LOAD DATA LOCAL INFILE......
测试文件tmp01.txt内容:
6,KEY01,Value01,2012-06-08 15:50:30,fssd;
7,KEY02,Value02,2012-06-08 15:50:30,2012-06-08 16:50:30;
8,KEY03,Value03,2012-06-08 15:50:30,232;
9,KEY04,Value04,2012-06-08 15:50:30,ve4;
10,KEY05,Value05,2012-06-08 15:50:30,444f;
数据库表
CREATE TABLE `t_emp` ( `id` int(10) NOT NULL AUTO_INCREMENT, `name` varchar(100) DEFAULT NULL, `sex` varchar(10) DEFAULT NULL, `salary` double DEFAULT NULL, `dep_id` int(10) DEFAULT NULL, `dep_date` datetime DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=46 DEFAULT CHARSET=utf8;
测试java代码
package com.wms.test;
import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.SQLException; public class MysqlLoadFile { private static String username = "root"; private static String ip = "192.168.1.106"; private static String password = "mysql"; private static String port = "3306"; public static void connection() { try { Class.forName("com.mysql.jdbc.Driver"); String url = "jdbc:mysql://" + ip +":" + port + "/mydb"; Connection conn = DriverManager.getConnection(url, username, password); String sql = "LOAD DATA LOCAL INFILE ‘d:/test/tmp01.txt‘ INTO TABLE mydb.t_emp FIELDS TERMINATED BY ‘,‘ LINES TERMINATED BY ‘;‘"; PreparedStatement pstmt = conn.prepareStatement(sql); pstmt.execute(); pstmt.close(); conn.close(); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } } public static void main(String[] args) { connection(); } }
使用LOCAL会自动进行容错操作,即使数据存在很大问题,如上,数据库也能导入数据。
2、使用LOAD DATA INFILE......
此种情况比较复杂:
tmp.txt文件内容:
‘6‘,‘KEY01‘,‘Value01‘,‘2012-06-08 15:50:30‘,‘2012-06-08 16:50:30‘
‘7‘,‘KEY02‘,‘Value02‘,‘2012-06-08 15:50:30‘,‘2012-06-08 16:50:30‘
‘8‘,‘KEY03‘,‘Value03‘,‘2012-06-08 15:50:30‘,‘2012-06-08 16:50:30‘
‘9‘,‘KEY04‘,‘Value04‘,‘2012-06-08 15:50:30‘,‘2012-06-08 16:50:30‘
‘10‘,‘KEY05‘,‘Value05‘,‘2012-06-08 15:50:30‘,‘2012-06-08 16:50:30‘
此种是标准数据。
数据库表:
CREATE TABLE `test_key_value` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `key` varchar(32) CHARACTER SET latin1 DEFAULT NULL, `value` varchar(128) CHARACTER SET latin1 DEFAULT NULL, `gmt_create` timestamp NULL DEFAULT NULL, `gmt_modify` timestamp NULL DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=gbk;
java测试代码:
package com.wms.test; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.SQLException; public class MysqlLoadFile { private static String username = "root"; private static String ip = "192.168.1.106"; private static String password = "mysql"; private static String port = "3306"; public static void connection() { try { Class.forName("com.mysql.jdbc.Driver"); String url = "jdbc:mysql://" + ip +":" + port + "/mydb"; Connection conn = DriverManager.getConnection(url, username, password); String sql = "load data infile ‘d:/test/tmp.txt‘ into table test_key_value fields terminated by ‘,‘ enclosed by ‘\\‘‘ lines terminated by ‘\\r\\n‘"; System.out.println(sql); PreparedStatement pstmt = conn.prepareStatement(sql); pstmt.execute(); pstmt.close(); conn.close(); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } } public static void main(String[] args) { connection(); } }
JDBC使用MYSQL的LOAD DATA LOACAL INFILE和LOAD DATA INFILE
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原文地址:http://www.cnblogs.com/wangmingshun/p/5656005.html