mysqlimport运用
格式：mysqlimport db_name textfile1例子：mysqlimport -u username -ppassword db_name c:/grid_card.txt -L -Delete --fields-terminated-by=,
注意：textfile1的文件名第一点之前的名称必须与db_name数据库中的表名一致。此数据将导入该表中。
导入的文件：只包含要导入的值。
mysqlimport 命令会调用LOAD DATA导入数据。
可以参照：LOAD DATA
mysql> LOAD DATA INFILE "load_gridCard.sql" INTO TABLE grid_card FIELDS TERMINAT
ED BY ',' LINES TERMINATED BY '\n';
表的类型为MyISAM比InnDB快很多。
mysqlimport的具体格式请参照：
http://linux.cn/home/space-3872-do-thread-id-984.html
在java里调用该命令：
public static String importTableData (String tableName) { long startTime = System.currentTimeMillis(); StringBuilder sb = new StringBuilder(); Runtime rt = Runtime.getRuntime(); String com = "cmd.exe /c \"E:/Program Files/mysql-5.5.8-win32/bin/mysqlimport\" -u username -ppassword dbName c:/" + tableName + ".txt --delete -L --fields-terminated-by=,"; try { Process p = rt.exec(com); BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream())); String line = null; while((line = br.readLine()) != null) { sb.append(line); } br = new BufferedReader(new InputStreamReader(p.getErrorStream())); line = null; while((line = br.readLine()) != null) { sb.append(line); } if (p != null) p.destroy(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } long endTime = System.currentTimeMillis(); System.out.println("load data to <" + tableName + "> use time : " + (endTime-startTime)); return sb.toString(); }
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