在url链接中显示输入值(ReactJs Laravel)
我用reactjs框架创建了laravel项目,我是这个框架的新手。我有问题,为什么每次我提交表格时都会发生 目标:用户可以在线注册 问题:在url链接中显示输入值(ReactJs Laravel),reactjs,laravel,Reactjs,Laravel,我用reactjs框架创建了laravel项目,我是这个框架的新手。我有问题,为什么每次我提交表格时都会发生 目标:用户可以在线注册 问题: 当我提交url链接中显示的用户输入值时,为什么会发生这种情况 我输入的数据不会插入到数据库中 代码: constructor() { super(); this.state = { f_name:'', l_name:'', m_name:'', email:'',
constructor() {
super();
this.state = {
f_name:'',
l_name:'',
m_name:'',
email:'',
home_num:'',
contact_num:'',
Job_name:[],
employ_status:'',
employ_relocate:'',
employ_start_date:'',
employ_file:''
}
this.handleSubmit = this.handleSubmit.bind(this);
this.handle_fname = this.handle_fname.bind(this);
this.handle_lname = this.handle_lname.bind(this);
this.handle_mname = this.handle_mname.bind(this);
this.handle_email = this.handle_email.bind(this);
this.handle_homenum = this.handle_homenum.bind(this);
this.handle_contactnum = this.handle_contactnum.bind(this);
this.handle_employ_status = this.handle_employ_status.bind(this);
this.handle_employ_relocate = this.handle_employ_relocate.bind(this);
this.handle_employ_start_date = this.handle_employ_start_date.bind(this);
this.handle_employ_file = this.handle_employ_file.bind(this);
}
componentDidMount() {
const id = this.props.match.params.id;
axios.get('/api/online_application_job_title/' +id).then(response => {
this.setState({
Job_name:response.data
})
})
}
handleSubmit(e)
{
const data = {
firstname: this.state.f_name,
lastname : this.state.l_name,
middlename : this.state.m_name,
email : this.state.email,
home_number : this.state.home_num,
contact_num : this.state.contact_num,
job : this.state.Job_name[0].position_name,
employ_status : this.state.employ_status,
employ_relocate : this.state.employ_relocate,
employ_start_date : this.state.employ_start_date,
employ_file : this.state.employ_file
}
axios.post('/api/save_application',data).then(response => {
console.log(response);
}).catch(error => console.log(error));
}
handle_fname(e)
{
this.setState({
f_name:e.target.value,
})
}
handle_lname(e){
this.setState({
l_name:e.target.value,
})
}
handle_mname(e){
this.setState({
m_name:e.target.value,
})
}
handle_email(e){
this.setState({
email:e.target.value,
})
}
handle_homenum(e){
this.setState({
home_num:e.target.value
})
}
handle_contactnum(e){
this.setState({
contact_num:e.target.value
})
}
handle_employ_status(e){
this.setState({
employ_status:e.target.value
});
}
handle_employ_relocate(e){
this.setState({
employ_relocate:e.target.value,
})
}
handle_employ_start_date(e){
this.setState({
employ_start_date:e.target.value,
})
}
handle_employ_file(e){
this.setState({
employ_file: e.target.files[0].extension
})
}
renderName() {
return (
this.state.Job_name.map(name => (
<input placeholder="" value={name.position_name} type="text" className="form-control"/>
))
)
}
render() {
return (
<div>
<div className="header">
<div className="jumbotron">
<h1>Online Application</h1>
</div>
</div>
<form onSubmit={this.handleSubmit}>
<div className="container">
<h5><b>Personal Info</b></h5>
<br/>
<div className="row">
<div className="col-md-6">
<input
placeholder="First Name*"
value={this.state.f_name}
onChange={this.handle_fname}
className="form-control"/>
</div>
<div className="col-md-6">
<input
placeholder="Last Name*"
value={this.state.l_name}
onChange={this.handle_lname}
className="form-control"/>
</div>
</div>
<br/>
<div className="row">
<div className="col-md-6">
<input
placeholder="Middle Name*"
value={this.state.m_name}
onChange={this.handle_mname}
className="form-control"/>
</div>
<div className="col-md-6">
<input
placeholder="Email Address*"
type="email"
value={this.state.email}
onChange={this.handle_email}
className="form-control"/>
</div>
</div>
<br/>
<div className="row">
<div className="col-md-6">
<input
placeholder="Home Number*"
type="number"
value={this.state.home_num}
onChange={this.handle_homenum}
className="form-control"/>
</div>
<div className="col-md-6">
<input
placeholder="Contact Number*"
type="number"
value={this.state.contact_num}
onChange={this.handle_contactnum}
className="form-control"/>
</div>
</div>
<br/><br/>
<h5><b>Employment Application</b></h5>
<br/>
<div className="row">
<div className="col-md-6">
<p>Position Applying For</p>
{this.renderName()}
</div>
<div className="col-md-6">
</div>
</div>
<br/><br/>
<div className="row">
<div className="col-md-6">
<p>1. What is your current employment status?</p>
<div className="form-check-inline">
<label className="form-check-label">
<input
type="radio"
className="form-check-input"
name="employmentstatus"
onChange={this.handle_employ_status}
defaultChecked={false}
value="Unemployed"/>Unemployed
</label>
</div>
<div className="form-check-inline">
<label className="form-check-label">
<input
type="radio"
className="form-check-input"
name="employmentstatus"
onChange={this.handle_employ_status}
defaultChecked={false}
value="Employed"/>Employed
</label>
</div>
<div className="form-check-inline disabled">
<label className="form-check-label">
<input
type="radio"
className="form-check-input"
name="employmentstatus"
onChange={this.handle_employ_status}
defaultChecked={false}
value="Self-Employed"/>Self-Employed
</label>
</div>
<div className="form-check-inline disabled">
<label className="form-check-label">
<input
type="radio"
className="form-check-input"
name="employmentstatus"
onChange={this.handle_employ_status}
defaultChecked={false}
value="Student"/>Student
</label>
</div>
</div>
<div className="col-md-6"></div>
</div>
<br/>
<div className="row">
<div className="col-md-6">
<p>2. Are you willing to relocate?</p>
<div className="form-check-inline">
<label className="form-check-label">
<input type="radio"
name="relocate"
onChange={this.handle_employ_relocate}
className="form-check-input"
value="Yes"/>Yes
</label>
</div>
<div className="form-check-inline">
<label className="form-check-label">
<input type="radio"
name="relocate"
onChange={this.handle_employ_relocate}
className="form-check-input"
value="No"/>No
</label>
</div>
</div>
<div className="col-md-6"></div>
</div>
<br/>
<div className="row">
<div className="col-md-6">
<p>3. When is your available start date?</p>
<input
name="startdate"
type="date"
onChange={this.handle_employ_start_date}
value={this.state.employ_start_date}
required=""
className="form-control"/>
</div>
<div className="col-md-6"></div>
</div>
<br/>
<div className="row">
<div className="col-md-6">
<p>4. Kindly attach a copy of your resume (PDF,docx files only).</p>
<div className="custom-file">
<input
type="file"
name="file"
accept="application/msword,application/pdf"
onChange={this.handle_employ_file}
className="custom-file-input"
id="inputGroupFile04"/>
<label className="custom-file-label" htmlFor="inputGroupFile04">Choose file</label>
</div>
</div>
<div className="col-md-6"></div>
</div>
<br/>
<div className="row">
<div className="col-md-6">
<input
className="btn btn-outline-primary btn-large form-control col-md-5"
type="submit"
value="Send Application"/>
</div>
<div className="col-md-6"></div>
</div>
</div>
</form>
</div>
)
}
首先,我只想向您介绍JavaScript(ES6)中的箭头函数。像这样声明私有方法:
handle_fname = (e) =>
{
this.setState({
f_name:e.target.value,
})
}
<form onSubmit={this.handleSubmit} method="post">
将节省您在构造函数中进行不必要的绑定的时间
关于您的问题,您没有显示this.handleSubmit()
的内容。如果没有这一点,我可以假设表单submit触发了一个get
调用,因为您未能将method
属性放入
标记中,并且没有指示您的method属性将导致默认的get方法。Get方法使用时,提交的数据将在浏览器的页面地址字段中可见
编辑
您已经在问题中添加了handleSubmit()
,看起来还可以。如果数据仍显示在浏览器的地址字段中,请尝试在表单标记中添加method=“post”
,如下所示:
handle_fname = (e) =>
{
this.setState({
f_name:e.target.value,
})
}
<form onSubmit={this.handleSubmit} method="post">
使用表单标记时,提交将触发基于提供的方法和操作url的默认行为。 在您的示例中,当您显式地处理数据时,您应该防止默认行为。 在handlesubmit中添加以下代码
handleSubmit(e) {
e.preventDefault();
...
...
}
这将防止默认行为
状态更新的改进:
您不需要单独的函数来更新输入值,以说明这可以组合在一个函数中。
若要组合,请提供与状态名称相同的输入名称
this.state ={
"f_name": '',
"l_name": '',
...
}
<input name="f_name" ... onChange={this.handleInputChange}/>
<input name="l_name" .. onChange={this.handleInputChange}/>
handleInputChange(e){
let target = e.target;
let name = target.name;
let value = target.value
this.setState({[name]: value})
}
this.state={
“f_名称”:“”,
“l_名称”:“”,
...
}
handleInputChange(e){
设target=e.target;
让name=target.name;
让value=target.value
this.setState({[name]:value})
}
有关更多信息,请参阅。给我的页面已过期