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  • 从数据库提取数据报错java.sql.SQLException: Column '4' not found.解决方法

    public List queryUserList() throws SQLException {
    String sql="select * from userInfo";

    //获取查询结果集
    ResultSet rs=db.query(sql);

    List<UserInfo> list=new ArrayList<UserInfo>();
    while (rs.next()) {
    UserInfo user=new UserInfo();
    user.setId(rs.getInt(rs.getString("id")));
    user.setUserName(rs.getString("userName"));
    user.setSex(rs.getString("sex"));
    user.setEmail(rs.getString("email"));
    user.setRegTime(rs.getString("regTime"));
    list.add(user);


    }
    return list;

    错误在user.setId(rs.getInt(rs.getString("id")));应该为user.setId(rs.getInt("id"));

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  • 原文地址:https://www.cnblogs.com/frankchia/p/6687951.html
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