【发布时间】：2018-07-20 12:29:58
【问题描述】：
美好的一天，我正在 ReactJS 中制作一个注册表单，该注册表单包含名字、姓氏、电子邮件、密码、生日和上传图片的字段。我设法将图像上传到服务器，但是我无法添加其他字段名字、姓氏、电子邮件、密码和生日，它有 Illegal arguments: undefined, string 的错误，我可以知道吗我做错了什么？谢谢。
ReactJS 提交事件
import React, { Component } from "react";
import { Link } from "react-router-dom";
import DatePicker from "react-datepicker";
import moment from "moment";
import axios from "axios";
class Register extends Component {
constructor(props) {
super(props);
this.state = {
startDate: moment(),
firstname: "",
lastname: "",
email: "",
password: "",
dateofbirth: "",
receipt: "",
description: ""
};
this.handleChange = this.handleChange.bind(this);
this.onChange = this.onChange.bind(this);
this.onSubmit = this.onSubmit.bind(this);
this.fileSelectHandler = this.fileSelectHandler.bind(this);
}
handleChange(date) {
this.setState({
startDate: date
});
}
fileSelectHandler = event => {
this.setState({
receipt: event.target.files[0]
});
};
onChange(e, date) {
switch (e.target.name) {
case "receipt":
this.setState({ receipt: e.target.files[0] });
break;
default:
this.setState({ [e.target.name]: e.target.value });
}
e.preventDefault();
}
onSubmit(e) {
e.preventDefault();
const { description, receipt } = this.state;
const bodyFormData = new FormData();
bodyFormData.append("receipt", receipt);
bodyFormData.append("description", description);
bodyFormData.append("firstname", this.state.firstname);
bodyFormData.append("lastname", this.state.lastname);
bodyFormData.append("password", this.state.password);
bodyFormData.append("email", this.state.email);
const newUser = {
firstname: this.state.firstname,
lastname: this.state.lastname,
email: this.state.email,
password: this.state.password,
dateofbirth: document.getElementById("date").value
};
axios
.post("/api/users/register", bodyFormData, newUser, {
headers: {
accept: "application/json",
"Accept-Language": "en-US,en;q=0.8"
}
})
.then(function(res) {
console.log(res.data);
})
.catch(err => console.log(err));
console.log(bodyFormData);
}
render() {
return (
<div className="container_child signup_container">
<div className="signup_thumbnail">
<div className="thumbnail__content">
<h1 className="heading-primary">this is overlay with image</h1>
<h2 className="heading-secondary">
this is overlay with imagessss
</h2>
</div>
<div className="signup__overlay" />
</div>
<div className="container_child signup_form">
<form onSubmit={this.onSubmit} encType="multipart/form-data">
<div className="form-group">
<label htmlFor="username">Firstname</label>
<input
className="form-control"
type="text"
name="firstname"
id="firstname"
placeholder="Juan"
value={this.state.firstname}
onChange={this.onChange}
/>
</div>
<div className="form-group">
<label htmlFor="lastname">Last Name</label>
<input
className="form-control"
type="text"
name="lastname"
id="last-name"
placeholder="Dela Cruz"
value={this.state.lastname}
onChange={this.onChange}
/>
</div>
<div className="form-group">
<label htmlFor="prcid">Email</label>
<input
className="form-control"
type="email"
name="email"
id="email"
placeholder="juan@gmail.com"
value={this.state.email}
onChange={this.onChange}
/>
</div>
<div className="form-group">
<label htmlFor="prcid">Password</label>
<input
className="form-control"
type="password"
name="password"
id="password"
value={this.state.password}
onChange={this.onChange}
/>
</div>
<div className="form-group">
<label htmlFor="prcid">Birthday:</label>
<DatePicker
id="date"
selected={this.state.startDate}
onChange={this.handleChange}
/>;
</div>
<div className="form-group">
<div
className="mdl-textfield mdl-js-textfield mdl-textfield--file is-upgraded"
data-upgraded=",MaterialTextfield"
>
<input
className="mdl-textfield__input"
placeholder="File"
type="text"
id="uploadFile"
name="description"
value={this.state.description}
onChange={this.onChange}
//readonly="true"
/>
<div className="">
<input
type="file"
ref="files"
id="uploadBtn"
name="receipt"
onChange={this.onChange}
/>
</div>
{/* // <Dropzone onDrop={this.onDrop}>
// <div>Try dropping some files here, or click to select files to upload.</div>
// </Dropzone> */}
</div>
</div>
<div className="m-t-lg">
<ul className="list-inline">
<li>
<input
className="btn btn--form"
type="submit"
value="Register"
/>
</li>
<li>
<Link to="/login">I am already a member</Link>
</li>
</ul>
</div>
</form>
</div>
</div>
);
}
}
export default Register;
【问题讨论】：
标签： javascript reactjs