我使用了 draft-js-export-html npm 并将 html 保存到我的数据库中，如下所述。
我点击了这个链接并使用 npm draft-js-import将 html 导入到带有 draftjs 的编辑器内容。如果我的 html 不包含任何图像，我可以使用 html 初始化内容，但如果它包含<img>标签，我将无法导入 html。
import React, { Component } from 'react';
import Relay from 'react-relay';
import {Editor, EditorState, RichUtils,DefaultDraftBlockRenderMap,convertToRaw,convertFromRaw} from 'draft-js';
import CreatePostMutation from "../mutations/CreatePostMutation";
import { disconnectAccount, connectAccount, postUpload } from '../serverRequests';
import {stateToHTML} from 'draft-js-export-html';
//text editor's code start
// Custom overrides for "code" style.
const styleMap = {
CODE: {
backgroundColor: 'rgba(0, 0, 0, 0.05)',
fontFamily: '"Inconsolata", "Menlo", "Consolas", monospace',
fontSize: 16,
padding: 2,
},
};
function getBlockStyle(block) {
switch (block.getType()) {
case 'blockquote': return 'RichEditor-blockquote';
default: return null;
}
}
class StyleButton extends React.Component {
constructor() {
super();
this.onToggle = (e) => {
e.preventDefault();
this.props.onToggle(this.props.style);
};
}
render() {
let className = 'RichEditor-styleButton';
if (this.props.active) {
className += ' RichEditor-activeButton';
}
return (
<span className={className} onMouseDown={this.onToggle}>
{this.props.label}
</span>
);
}
}
const BLOCK_TYPES = [
{label: 'H1', style: 'header-one'},
{label: 'H2', style: 'header-two'},
{label: 'H3', style: 'header-three'},
{label: 'H4', style: 'header-four'},
{label: 'H5', style: 'header-five'},
{label: 'H6', style: 'header-six'},
{label: 'Blockquote', style: 'blockquote'},
{label: 'UL', style: 'unordered-list-item'},
{label: 'OL', style: 'ordered-list-item'},
{label: 'Code Block', style: 'code-block'},
];
const BlockStyleControls = (props) => {
const {editorState} = props;
const selection = editorState.getSelection();
const blockType = editorState
.getCurrentContent()
.getBlockForKey(selection.getStartKey())
.getType();
return (
<div className="RichEditor-controls">
{BLOCK_TYPES.map((type) =>
<StyleButton
key={type.label}
active={type.style === blockType}
label={type.label}
onToggle={props.onToggle}
style={type.style}
/>
)}
</div>
);
};
var INLINE_STYLES = [
{label: 'Bold', style: 'BOLD'},
{label: 'Italic', style: 'ITALIC'},
{label: 'Underline', style: 'UNDERLINE'},
{label: 'Monospace', style: 'CODE'},
];
const InlineStyleControls = (props) => {
var currentStyle = props.editorState.getCurrentInlineStyle();
return (
<div className="RichEditor-controls">
{INLINE_STYLES.map(type =>
<StyleButton
key={type.label}
active={currentStyle.has(type.style)}
label={type.label}
onToggle={props.onToggle}
style={type.style}
/>
)}
</div>
);
};
//text editor's code ends
class BlogForm extends Component {
constructor(props) {
super(props);
let contentState = stateFromHTML(props.post.content);
this.state = {
editorState: EditorState.createWithContent(contentState),
};
this.focus = () => this.refs.editor.focus();
this.onChange = (editorState) => this.setState({editorState});
console.log(editorState)
this.handleKeyCommand = (command) => this._handleKeyCommand(command);
this.toggleBlockType = (type) => this._toggleBlockType(type);
this.toggleInlineStyle = (style) => this._toggleInlineStyle(style);
}
_handleKeyCommand(command) {
const {editorState} = this.state;
const newState = RichUtils.handleKeyCommand(editorState, command);
if (newState) {
this.onChange(newState);
return true;
}
return false;
}
_toggleBlockType(blockType) {
this.onChange(
RichUtils.toggleBlockType(
this.state.editorState,
blockType
)
);
}
_toggleInlineStyle(inlineStyle) {
this.onChange(
RichUtils.toggleInlineStyle(
this.state.editorState,
inlineStyle
)
);
}
handleSubmit = (e) => {
let html = stateToHTML(this.state.editorState.getCurrentContent());
e.preventDefault();
console.dir(this.state.editorState)
Relay.Store.update(
new CreatePostMutation({
title: this.refs.newTitle.value,
content: html,
userid: this.props.user.userid
}),
);
this.refs.newTitle.value = "";
}
render() {
const {editorState} = this.state;
console.log(editorState)
// If the user changes block type before entering any text, we can
// either style the placeholder or hide it. Let's just hide it now.
let className = 'RichEditor-editor';
var contentState = editorState.getCurrentContent();
if (!contentState.hasText()) {
if (contentState.getBlockMap().first().getType() !== 'unstyled') {
className += ' RichEditor-hidePlaceholder';
}
}
return (
<div className="col-md-8 col-sm-8 col-xs-12">
<form onSubmit={this.handleSubmit} className="postForm">
<div className="form-group">
<input className="form-control" type="text" required placeholder="Title" ref="newTitle" />
</div>
<div className="form-group">
<div className="RichEditor-root">
<BlockStyleControls
editorState={editorState}
onToggle={this.toggleBlockType}
/>
<InlineStyleControls
editorState={editorState}
onToggle={this.toggleInlineStyle}
/>
<div className={className} onClick={this.focus}>
<Editor
blockStyleFn={getBlockStyle}
customStyleMap={styleMap}
editorState={editorState}
handleKeyCommand={this.handleKeyCommand}
onChange={this.onChange}
placeholder="Enter Content..."
ref="editor"
spellCheck={true}
/>
</div>
</div>
</div>
<div className="form-group">
<input type="file" name="avatar" ref="avatar" onChange={(e)=>this.handleImageSelect(e)} className="form-control padding upload-input" placeholder="Change image" />
</div>
<button className="btn btn-primary allbtn-btn" type="submit">Submit</button>
</form>
</div>
)
}
}
export default BlogForm
因为它正在产生错误
Uncaught Invariant Violation: Component(...): A valid React element (or null) must be returned. You may have returned undefined, an array or some other invalid object.
我也尝试了这个链接，也使用了 convertFromHtml但仍然无法用<img>标签初始化编辑器
提前致谢