解决 mysql 插入反斜杠消失的问题

解决方法：将转义符"\"增加为"\\"，如果字符串str含有反斜杠，那么 str=str.replaceAll("\\\\", "\\\\\\\\");

参考

        String b = "c:\\abc";
        b = b.replaceAll("\\\\", "\\\\\\\\");
        System.out.println( b );

        b = "c:\\abc";
        b = b.replaceAll("\\\\", "\\\\\\\\\\\\");
        System.out.println( b );

        b = "c:\\abc";
        b = b.replaceAll("\\\\", "/");
        System.out.println( b );