Question

请你帮我找一下问题的根源？

我想从bundle移动反应并从CDN加载它，所以我添加到webpack config：

protected void Page_Load(object sender, EventArgs e)
{
    if (IsPostBack == false)
    {
        //not in an ispostback check
    }
    //but outside when working with dynamic controls

    //create a new table
    Table table = new Table();

    //create a connection and a command
    using (SqlConnection conn = new SqlConnection(ConnectionString))
    using (SqlCommand cmd = new SqlCommand("select * from subjects", conn))
    {
        //open the connection
        conn.Open();

        using (SqlDataReader reader = cmd.ExecuteReader())
        {
            while (reader.Read())
            {
                //create a new row, cell and checkbox
                TableRow row = new TableRow();
                TableCell cell = new TableCell();
                CheckBox cb = new CheckBox();

                //set some checkbox properties
                cb.Text = reader["ColumnName"].ToString();

                //add the checkbox to the cell
                cell.Controls.Add(cb);

                //the cell to the row
                row.Controls.Add(cell);

                //and the row to the table
                table.Controls.Add(row);
            }
        }
    }

    //finally add the table to the page
    PlaceHolder1.Controls.Add(table);
}

和html：

  externals: {
    react: {
      root: 'react',
      commonjs2: 'react',
      commonjs: 'react',
      amd: 'react',
      umd: 'react',
    },
    'react-dom': {
      root: 'ReactDOM',
      commonjs2: 'react-dom',
      commonjs: 'react-dom',
      amd: 'react-dom',
      umd: 'react-dom',
    },
  },

但在控制台我得到了：

<script src="https://unpkg.com/react@16/umd/react.development.js" crossorigin></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js" crossorigin></script>
<script async src="/client-2bb593ab57065d662f04.bundle.js"></script>

我不知道为什么，因为我已经简化了代码并删除了路由器。

有什么想法吗？尽我最大的问候。

Answer 1

为了使其正常工作，我将libraryTarget: 'umd'添加到webpack配置的output。在此处找到：https://github.com/webpack/webpack/issues/1275#issuecomment-246469528

捆绑外部react.js不起作用 - 可能缺少一些全局变量？

1 个答案: