使用正则表达式在Java字符串中转义文字

Question

i have a string value that i have to insert in mysql database. and i have to escape some literal like (' , " ,% ,) in this string so how can i use regex for that

Answer 1

Don't use regex. Use a database library that escapes things for you, and let it handle this.

Answer 2

Don't try to do this yourself. Let the JDBC driver handle it, by using PreparedStatement instead of concatenating an SQL statement using strings yourself. Example:

Connection conn = ...;    // Database connection

PreparedStatement ps = conn.prepareStatement("INSERT INTO MYTABLE (NAME, AGE) VALUES (?, ?)");

ps.setString(1, "Jesper");
ps.setInt(2, 38);

ps.executeUpdate();

If you use PreparedStatement , the JDBC driver will take care of escaping the inserted values correctly for whatever brand and version of the database that you use.