Java mysql batch 提速 “rewriteBatchedStatements=true”
Mysql jdbc 批处理数据，需要给jdbc连接加上rewriteBatchedStatements=true。默认jdbc是不会开启批处理。
例如：jdbc:mysql://10.250.4.98:3306/dbname?rewriteBatchedStatements=true
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Java UpdateBatchSample：
http://www.java2s.com/Code/Java/Database-SQL-JDBC/BatchupdateforMySQL.htm
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官网forums
http://forums.mysql.com/read.php?39,260053,263456#msg-263456
MySQL itself has no real “batch” API for prepared statements. If you add the configuration property “rewriteBatchedStatements=true” to your JDBC connection string for Connector/J, the driver will rewrite batches of prepared INSERTs into multi-value form, and all other forms of statements into multi-statements, which does give a large performance gain (7-10x).?
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注意：
jdbc driver 版本需要 5.1.8 及以上
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