Mysql:Before start of result set

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解决方法：使用resultSet.getString（）之前一定要调用resultSet.next()

 ResultSet resultSet = statement1.executeQuery();while (resultSet.next()){String username1 = resultSet.getString("username");int id1 = resultSet.getInt("id");String password2 = resultSet.getString("password");String name = resultSet.getString("name");int age1 = resultSet.getInt("age");logger.info("id:{},username:{},password:{},name:{},age:{}",id1,username1,password2,name,age1);}

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