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# 完全控制的上传列表
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- order: 2
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使用 `fileList` 对列表进行完全控制,可以实现各种自定义功能,以下演示三种情况:
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1) 上传列表数量的限制。
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2) 读取远程路径并显示链接。
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3) 按照服务器返回信息筛选成功上传的文件。
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---
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````jsx
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var Upload = antd.Upload;
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var fileList = [{
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uid: -1,
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name: 'xxx.png',
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status: 'done',
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url: 'http://www.baidu.com/xxx.png'
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}];
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var MyUpload = React.createClass({
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getInitialState() {
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return {
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fileList: fileList
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};
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},
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handleChange(info) {
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let fileList = info.fileList;
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// 1. 上传列表数量的限制
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// 只显示最近上传的一个,旧的会被新的顶掉
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fileList = fileList.slice(-2);
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// 2. 读取远程路径并显示链接
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fileList = fileList.map(function(file) {
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if (file.response) {
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// 组件会将 file.url 作为链接进行展示
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file.url = JSON.parse(file.response).url;
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}
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return file;
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});
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// 3. 按照服务器返回信息筛选成功上传的文件
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fileList = fileList.filter(function(file) {
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if (file.response) {
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return JSON.parse(file.response).status === 'success';
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}
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return true;
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});
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this.setState({
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fileList: fileList
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});
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},
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render() {
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var props = {
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action: '/upload.do',
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onChange: this.handleChange,
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multiple: true
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};
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return <Upload {...props} fileList={this.state.fileList}>
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<button type="button" className="ant-btn ant-btn-ghost">
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<i className="anticon anticon-upload"></i> 点击上传
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</button>
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</Upload>;
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}
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});
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React.render(<MyUpload />, document.getElementById('components-upload-demo-filelist'));
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````
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