如何解决我想将带有文本的图像从表单上传到快递服务器
我正在使用react,express,mongodb,并且我想将用户输入的表单数据保存到我的数据库中,我要保存的只是文本字段,并且响应的状态码为200,但是当我尝试时添加图像,它可以给我500并仅保存文本字段,我已经尝试了所有方法,但无法掌握所缺少的内容。 我正在使用multer和fetch。
这是客户端
import React,{Component} from 'react';
import AdminHeader from './AdminHeader';
import AdminFooter from './AdminFooter';
import { Label,Button,Row,Col,Form } from 'reactstrap';
import { baseUrl } from '../shared/baseUrl';
import axios from 'axios';
class AddAppart extends Component {
constructor(props){
super(props);
this.state = {
areaName: '',description: '',shortDescription: '',price: '',imageFile: null
};
this.onChange = this.onChange.bind(this);
this.handleSubmit = this.handleSubmit.bind(this);
}
onChange(e) {
if (e.target.id === 'areaName') {
this.setState({ areaName: e.target.value });
} else if (e.target.id === 'description') {
this.setState({ description: e.target.value });
} else if (e.target.id === 'shortDescription') {
this.setState({ shortDescription: e.target.value });
} else if (e.target.id === 'price') {
this.setState({ price: e.target.value});
console.log(e.target.value);
}else if (e.target.id === 'imageFile') {
this.setState({ imageFile: e.target.files[0]});
console.log(e.target.value);
}
}
handleSubmit(e) {
e.preventDefault();
fetch((baseUrl+'appartments/'),{
method: 'POST',headers: {
'Accept': 'application/json','Content-Type': 'application/json'
},body: JSON.stringify({
areaName: this.state.areaName,description: this.state.description,shortDescription: this.state.shortDescription,price: this.state.price,image: this.state.imageFile
}),})
this.setState({
areaName: '',price: ''
});
}
// handleSubmitFile(){
// fetch((baseUrl+'sendfiles'),{
// method: 'POST',// body: JSON.stringify({
// imageFile: this.state.imageFile
// })
// })
// }
handleSubmitForm(){
let data = new FormData();
data.append("imageFile",this.state.imageFile);
data.set("shortDescription",this.state.shortDescription);
data.set("areaName",this.state.areaName);
data.set("description",this.state.description);
data.set("price",this.state.price);
fetch((baseUrl+'appartments/'),body: data
})
this.setState({
areaName: '',price: ''
});
}
render(){
return(
<>
<AdminHeader />
<div className="container">
<h3>Enter Appartment Information</h3>
<hr />
<Form onSubmit={this.handleSubmit} id="MyForm">
<Row className="form-group">
<Col>
<Label htmlFor="areaName">Area Name</Label>
<input model=".areaName" type="text" onChange={this.onChange} id="areaName" className="form-control" innerRef={(input) => this.areaName = input}></input>
</Col>
</Row>
<Row className="form-group">
<Col>
<Label htmlFor="description">Description</Label>
<input model=".description" type="text" onChange={this.onChange} id="description" className="form-control" innerRef={(input) => this.description = input}></input>
</Col>
</Row>
<Row className="form-group">
<Col>
<Label htmlFor="shortDescription">Short Description</Label>
<input model=".shortDescription" type="text" onChange={this.onChange} id="shortDescription" className="form-control" innerRef={(input) => this.shortDescription = input}></input>
</Col>
</Row>
<Row className="form-group">
<Col>
<Label htmlFor="price">Price</Label>
<input model=".price" type="number" id="price" onChange={this.onChange} className="form-control" innerRef={(input) => this.price = input}></input>
</Col>
</Row>
<Row className="form-group">
<Col>
<Label htmlFor="imagesUpload">Images Upload</Label>
<input model=".imageFile" type="file" multiple id="imageFile" className="form-control" innerRef={(input) => this.imageFile = input}></input>
</Col>
</Row>
<Button type="submit" className="bg-primary">Submit</Button>
</Form>
</div>
<AdminFooter />
</>
);
}
}
export default AddAppart;
如您所见,我已经尝试过使用FormData和另一个请求网址
这是服务器端
const storage = multer.diskStorage({
destination: (req,file,cb) => {
cb(null,'public/images');
},filename: (req,file.originalname)
}
});
const imageFileFilter = (req,cb) => {
if(!file.originalname.match(/\.(jpg|jpeg|png|gif)$/)) {
return cb(new Error('You can upload only image files!'),false);
}
cb(null,true);
};
const upload = multer({ storage: storage,fileFilter: imageFileFilter});
const appartRouter = express.Router();
appartRouter.use(bodyParser.json());
appartRouter.route('/')
.options(cors.corsWithOptions,(req,res) => {
res.sendStatus(200);
})
.post(cors.corsWithOptions,upload.array('image'),res,next) =>{
Appartments.create(req.body)
.then((appartment) => {
var files = [].concat(req.files);
for(var i = 0; i < files.length; i++){
file = files[i];
appartment.image.push({"image": file.path});
}
appartment.save();
console.log('Appartment Created ',appartment);
res.statusCode = 200;
res.setHeader('Content-Type','multipart/form-data');
res.json(appartment);
},(err) => next(err))
.catch((err) => next(err));
})
当我评论工作时将文件保存到数据库状态码200的循环给出500时,在两种情况下都只保存文本字段
编辑: 我找到了一种使用axios和表单数据的方法,并且在发布时,状态变为200可以,但是图像数组字段为空
handleSubmitFinalIsa(e) {
e.preventDefault()
var formData = new FormData();
for (const key of Object.keys(this.state.image)) {
formData.append('image',this.state.image[key])
}
formData.set("shortDescription",this.state.shortDescription);
formData.set("areaName",this.state.areaName);
formData.set("description",this.state.description);
formData.set("price",this.state.price);
axios.post("https://localhost:3886/appartments",formData,{
}).then(res => {
console.log(res.data)
})
}
EDIT2:在第一次编辑后,我意识到我没有跟踪输入文件的变化,只是添加了onChange,最后它起作用了
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。