解决JDBC连接没有密码的MySQL数据库的方法
<%@ page contentType="text/html;charset=gb2312"%> <%@ page import="java.sql.*"%> <html> <body> <% Class.forName("com.mysql.jdbc.Driver").newInstance(); String url ="jdbc:mysql://localhost/myblog?user=root&password=&useUnicode=true&characterEncoding=GB2312" ; Connection conn= DriverManager.getConnection(url); Statement stmt=conn.createStatement(); String query="select * from dlog_user"; ResultSet rs=stmt.executeQuery(query); while(rs.next()) { String s=rs.getString("username");//看准你的字段是不是字符型,不然就不能用getString out.print(s+"<br>"); } %> </body> </html> 测试通过