html - ReactJS 组件抛出未定义但被渲染？

Question

我正在使用 ReactJS.NET 构建提要，但遇到 chromes 给我的错误问题。

加载页面时，我可以看到 1 个错误

未捕获的 ReferenceError：未定义 FeedBox（匿名函数）

它从 React.render 行抛出：

    <script src="http://fb.me/react-0.12.2.js"></script>
    <script src="/Scripts/jquery-2.1.3.min.js"></script>
    <script src="/Scripts/spin.min.js"></script>
    <script type="text/jsx" src="/Scripts/JSXTransformer.js"></script>

    <script>React.render(React.createElement(FeedBox, {"controlId":"myFeedBox","initialData":{"TopicList":[{"Id":null,"UserInfoUrl":"http://www.bradspel.net","UserName":"Carl","UserPicSrc":"http://www.bradspel.net/tools/avatars/15_avatar.jpg","LikeCount":487,"Like":false,"CommentCount":3,"DateCreated":"2015-02-22 19:42:59","DateEdit":"2015-02-22 19:42:59","Message":"Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi, condimentum sed, commodo vitae, ornare sit amet, wisi. Aenean fermentum, elit eget tincidunt condimentum, eros ipsum rutrum orci, sagittis tempus lacus enim ac dui. Donec non enim in turpis pulvinar facilisis. Ut felis. Praesent dapibus, neque id cursus faucibus, tortor neque egestas augue, eu vulputate magna eros eu erat. Aliquam erat volutpat. Nam dui mi, tincidunt quis, accumsan porttitor, facilisis luctus, metus","Comments":[{"Id":null,"UserInfoUrl":"http://www.bradspel.net","UserName":"Carl","UserPicSrc":"http://www.bradspel.net/tools/avatars/15_avatar.jpg","LikeCount":56,"Like":false,"CommentCount":3,"DateCreated":"2015-02-22 19:42:59","DateEdit":"2015-02-22 19:42:59","Message":"Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi, condimentum sed, commodo vitae, ornare sit amet, wisi. Aenean fermentum, elit eget tincidunt condimentum, eros ipsum rutrum orci, sagittis tempus lacus enim ac dui. Donec non enim in turpis pulvinar facilisis. Ut felis. Praesent dapibus, neque id cursus faucibus, tortor neque egestas augue, eu vulputate magna eros eu erat. Aliquam erat volutpat. Nam dui mi, tincidunt quis, accumsan porttitor, facilisis luctus, metus","Comments":[]}]}],"UserId":5},"pageNr":1,"pageTake":25,"maxPageNr":0}), document.getElementById("react1"));
</script>

然而，组件 FeedBox 被正确渲染，但 onClick 不起作用。

索引如下所示：

    @{
        ViewBag.Title = "Index";
        Layout = "~/Views/Shared/_Layout.cshtml";
    }

    @section MainContainer
    {
        <h2>Index</h2>

        @Html.React("FeedBox", new
        {
            controlId = "myFeedBox",
            initialData = Model.FeedModel,
            pageNr = 1,
            pageTake = 25,
            maxPageNr = 0
        })
    }

饲料.jsx

var LikeCon = React.createClass({
    handleClick: function(like) {
        alert("like : " + like);
      },
    render(){
        return this.renderLikeButton(this.props.like, this.props.likeCount, this.props.userId)
    },
    renderLikeButton(like, likeCount, userId){
        return (
                content =  
                <div className="likeCon">
                    <div className={like==true ? "likeButConAct" : "likeButCon"}>
                        <div className="likeB" onClick={this.handleClick.bind(this,!like)} >
                            &nbsp;
                        </div>
                        { likeCount > 0 ? <div className="likeCount">{likeCount}</div>: null}

                    </div>
                </div>
            );
    }
});


var TopicComments = React.createClass({
    render: function() {
        var comment = this.props.data.map(function(com, i) {
            return (
            <article>
            <div className="comment">
                <div className="tUImgLnk">
                    <a title={com.UserName} target="_blank" href={com.UserInfoUrl}>
                        <img className="tUImg" src={com.UserPicSrc} />
                    </a>
                </div>
                <a href="#" target="_blank">{com.UserName}</a>
                <div className="content">
                    {com.Message}
                </div>
                <div className="status">
                    <div className="dateCreated dimText">
                        {com.DateCreated}
                    </div>  
                    <LikeCon like={com.Like} likeCount={com.LikeCount} objectId={com.Id} categoryKey={1} userId={this.props.userId} />
                    <article></article>
                </div>
            </div>
            </article>);
        }.bind(this));
        return(
            <div className="comments">
                {comment}
            </div>
            );
    }
});


var CommentForm = React.createClass({
  handleSubmit: function(e) {
    e.preventDefault();
    var author = this.refs.author.getDOMNode().value.trim();
    var text = this.refs.text.getDOMNode().value.trim();
    if (!text || !author) {
      return;
    }
    this.props.onCommentSubmit({Author: author, Text: text});
    this.refs.author.getDOMNode().value = '';
    this.refs.text.getDOMNode().value = '';
    return;
  },
  render: function() {
    return (
      <form className="commentForm" onSubmit={this.handleSubmit}>
        <input type="text" placeholder="Your name" ref="author" />
        <input type="text" placeholder="Say something..." ref="text" />
        <input type="submit" value="Post" />
      </form>
    );
  }
})

var FeedTopic = React.createClass({
        render: function() {
            return (
                <div className="topic">
                    <div className="tBack">
                        <div className="tHead">
                            <div className="tUImgLnk">
                                <a title={this.props.data.UserName} target="_blank" href={this.props.data.UserInfoUrl}>
                                    <img className="tUImg" src={this.props.data.UserPicSrc} />
                                </a>
                            </div>
                            <div className="tInfo">
                                    <h4 className="nLnSpc margB3p"><a title={this.props.data.UserName} target="_blank" href={this.props.data.UserInfoUrl}>{this.props.data.UserName}</a></h4>
                                    <span className="dimText" >{this.props.data.DateCreated}</span>
                            </div>
                        </div>
                        <article></article>
                        <div className="tContent">
                            {this.props.data.Message}
                        </div>
                        <LikeCon like={this.props.data.Like} likeCount={this.props.data.LikeCount} userId={this.props.userId} />
                        <article></article>
                    </div>
                    <TopicComments data={this.props.data.Comments} userId={this.props.userId} />
                    <CommentForm />
                </div>

            );
        }
});


var FeedList = React.createClass({
    render: function() {
        var userId = this.props.data.UserId;
        var controlId = this.props.controlId;
        if(this.props.data.TopicList != null && this.props.data.TopicList.length > 0){
                var topic = this.props.data.TopicList.map(function (topic, i) {
                    return (
                        <FeedTopic data={topic} key={i} userId={this.props.data.UserId} />
                    );
                }.bind(this));
            }
        return (
            <div className={controlId}>
                {topic}
            </div>
        );
    }
});



var FeedBox = React.createClass({
    getInitialState: function() {
            return { data: this.props.initialData };
     },
    render: function(){
        return (
            <FeedList data={this.state.data} controlId={this.props.controlId} />

        );
    }
});

_布局

@using System.Web.Optimization
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width" />
    <title>@ViewBag.Title - Bradspel.net</title>
    @Styles.Render("~/Content/css")

    @RenderSection("Header", required: false)
</head>
<body>
    <div id="header">
        @RenderBody()
    </div>
    <div id="mainContent">
        <div id="page">
            @RenderSection("MainContainer")
        </div>
    </div>
    <script src="http://fb.me/react-0.12.2.js"></script>
    <script src="@Url.Content("~/Scripts/jquery-2.1.3.min.js")"></script>
    <script src="@Url.Content("~/Scripts/spin.min.js")"></script>
    <script type="text/jsx" src="@Url.Content("~/Scripts/JSXTransformer.js")"></script>

    @Html.ReactInitJavaScript()
</body>
</html>

反应配置

public static class ReactConfig
    {
        public static void Configure()
        {
            ReactSiteConfiguration.Configuration
                .AddScript("~/Scripts/Grid.jsx")
                .AddScript("~/Scripts/Feed.jsx");
        }
    }

score 4 · Accepted Answer

你不需要在 ReactJS.NET 中使用 JSXTransformer 客户端。所有 JSX 转换都是在服务器端完成的，因此您可以删除 JSXTransformer 脚本。

这里的问题是您没有在 HTML 中引用 JSX 文件。中列出的文件ReactConfig.cs仅用于服务器端渲染。对于客户端渲染，您仍然需要<script>为这些文件添加标签。这不会自动完成，因为不同的人使用不同的配置（例如不同的缩小器）。您可以直接引用 JSX 文件；ReactJS.NET 会将它们转换为 JavaScript 并即时缓存它们：

<script src="@Url.Content("~/Scripts/Grid.jsx")"></script>
<script src="@Url.Content("~/Scripts/Feed.jsx")"></script>

这有利于开发，但对于生产站点，您可能需要使用打包器/压缩器，例如Cassette或ASP.NET Bundling and Minification（它们都是 .NET 原生的），或者 Webpack 或 Gulp（它们是 Node.js）。 js 工具）。ReactJS.NET 站点上的文档有关于如何配置所有这些工具的页面。

html - ReactJS 组件抛出未定义但被渲染？

1 回答 1

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