java如何防止sql注入

2024-12-02 22:51:07
推荐回答(1个)
回答1:

采用预编译语句集,它内置了处理SQL注入的能力,只要使用它的setString方法传值即可: String sql= "select * from users where username=?; PreparedStatement preState = conn.prepareStatement(sql); preState.setString(1, userName); preState.setString(2, password); ResultSet rs = preState.executeQuery();