Php 表中的记录不显示在前端
我不熟悉Laravel和ReactJS,我正在尝试实现CRUD操作,我正在尝试显示表中的4行,但能够将记录插入表中,但无法读取。感谢您的帮助。 Laravel框架7.10.3 PHP7.4.5 作曲家版本1.10.6 Mysql 下面是代码的详细信息 DisplayProduct.jsPhp 表中的记录不显示在前端,php,reactjs,laravel,Php,Reactjs,Laravel,我不熟悉Laravel和ReactJS,我正在尝试实现CRUD操作,我正在尝试显示表中的4行,但能够将记录插入表中,但无法读取。感谢您的帮助。 Laravel框架7.10.3 PHP7.4.5 作曲家版本1.10.6 Mysql 下面是代码的详细信息 DisplayProduct.js import React, {Component} from 'react'; import axios from 'axios'; import { Link } from 'react-router'; im
import React, {Component} from 'react';
import axios from 'axios';
import { Link } from 'react-router';
import TableRow from './TableRow';
import MyGlobleSetting from './MyGlobleSetting';
class DisplayProduct extends Component {
constructor(props) {
super(props);
this.state = {value: '', products: ''};
}
componentDidMount(){
axios.get(MyGlobleSetting.url + '/api/products')
.then(response => {
this.setState({ products: response.data });
console.log(response.data);
console.log(this.state.products);
})
.catch(function (error) {
console.log(error);
})
}
tabRow(){
if(this.state.products instanceof Array){
return this.state.products.map(function(object, i){
return <TableRow obj={object} key={i} />;
})
}
}
render(){
return (
<div>
<h1>Products</h1>
<div className="row">
<div className="col-md-10"></div>
<div className="col-md-2">
<Link to="/add-item">Create Product</Link>
</div>
</div><br />
<table className="table table-hover">
<thead>
<tr>
<td>ID</td>
<td>Product Title</td>
<td>Product Body</td>
<td width="200px">Actions</td>
</tr>
</thead>
<tbody>
{this.tabRow()}
</tbody>
</table>
</div>
)
}
}
export default DisplayProduct;
import React,{Component}来自'React';
从“axios”导入axios;
从“反应路由器”导入{Link};
从“./TableRow”导入TableRow;
从“/MyGlobleSetting”导入MyGlobleSetting;
类DisplayProduct扩展组件{
建造师(道具){
超级(道具);
this.state={value:'',products:''};
}
componentDidMount(){
get(MyGlobleSetting.url+'/api/products')
。然后(响应=>{
this.setState({products:response.data});
console.log(response.data);
console.log(this.state.products);
})
.catch(函数(错误){
console.log(错误);
})
}
塔布罗(){
if(this.state.products instanceof数组){
返回this.state.products.map(函数(对象,i){
返回;
})
}
}
render(){
返回(
产品
创造产品
身份证件
产品名称
产品主体
行动
{this.tabRow()}
)
}
}
出口默认显示产品;
TableRow.js
import React, { Component } from 'react';
import { Link, browserHistory } from 'react-router';
import axios from 'axios';
import MyGlobleSetting from './MyGlobleSetting';
class TableRow extends Component {
constructor(props) {
super(props);
this.handleSubmit = this.handleSubmit.bind(this);
}
handleSubmit(event) {
event.preventDefault();
let uri = MyGlobleSetting.url + `/api/products/${this.props.obj.id}`;
axios.delete(uri);
browserHistory.push('/display-item');
}
render() {
return (
<tr>
<td>
{this.props.obj.id}
</td>
<td>
{this.props.obj.title}
</td>
<td>
{this.props.obj.body}
</td>
<td>
<form onSubmit={this.handleSubmit}>
<Link to={"edit/"+this.props.obj.id} className="btn btn-primary">Edit</Link>
<input type="submit" value="Delete" className="btn btn-danger"/>
</form>
</td>
</tr>
);
}
}
export default TableRow;
import React,{Component}来自'React';
从“反应路由器”导入{Link,browserHistory};
从“axios”导入axios;
从“/MyGlobleSetting”导入MyGlobleSetting;
类TableRow扩展组件{
建造师(道具){
超级(道具);
this.handleSubmit=this.handleSubmit.bind(this);
}
handleSubmit(事件){
event.preventDefault();
让uri=MyGlobleSetting.url+`/api/products/${this.props.obj.id}`;
删除(uri);
browserHistory.push('/display item');
}
render(){
返回(
{this.props.obj.id}
{this.props.obj.title}
{this.props.obj.body}
编辑
);
}
}
导出默认表行;
欢迎使用.blade.php
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Laravel ReactJS CRUD Example</title>
<link href="{{mix('css/app.css')}}" rel="stylesheet" type="text/css">
</head>
<body>
<div id='crud-app'></div>
<script src="{{mix('js/app.js')}}" ></script>
</body>
</html>
Laravel反应JS积垢示例
ProductController.php
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Product;
class ProductController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
$products = Product::all();
return response()->json($products);
}
/**
* Store a newly created resource in storage.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$product = new Product([
'title' => $request->get('title'),
'body' => $request->get('body')
]);
$product->save();
return response()->json('Product Added Successfully.');
}
/**
* Show the form for editing the specified resource.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function edit($id)
{
$product = Product::find($id);
return response()->json($product);
}
/**
* Update the specified resource in storage.
*
* @param \Illuminate\Http\Request $request
* @param int $id
* @return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
$product = Product::find($id);
$product->title = $request->get('title');
$product->body = $request->get('body');
$product->save();
return response()->json('Product Updated Successfully.');
}
/**
* Remove the specified resource from storage.
*
* @param int $id
* @return \Illuminate\Http\Response
*/
public function destroy($id)
{
$product = Product::find($id);
$product->delete();
return response()->json('Product Deleted Successfully.');
}
}
?>
Master.js
import React, {Component} from 'react';
import { Router, Route, Link } from 'react-router';
class Master extends Component {
render(){
return (
<div className="container">
<nav className="navbar navbar-default">
<div className="container-fluid">
<div className="navbar-header">
<a className="navbar-brand" href="/">Products Maintenance</a>
</div>
<ul className="nav navbar-nav">
<li><Link to="/">Home</Link></li>
<li><Link to="add-item">Create Product</Link></li>
<li><Link to="display-item">Products</Link></li>
</ul>
</div>
</nav>
<div>
{this.props.children}
</div>
</div>
)
}
}
export default Master
import React,{Component}来自'React';
从“react Router”导入{Router,Route,Link};
类主控扩展组件{
render(){
返回(
- 家
- 创造产品
- 产品
{this.props.children}
)
}
}
导出默认主机
app.js
require('./bootstrap');
import React from 'react';
import { render } from 'react-dom';
import { Router, Route, browserHistory } from 'react-router';
import Master from './components/Master';
import CreateProduct from './components/CreateProduct';
import DisplayProduct from './components/DisplayProduct';
import UpdateProduct from './components/UpdateProduct';
render(
<Router history={browserHistory}>
<Route path="/" component={Master} >
<Route path="/add-item" component={CreateProduct} />
<Route path="/display-item" component={ DisplayProduct} />
<Route path="/edit/:id" component={UpdateProduct} />
</Route>
</Router>,
document.getElementById('crud-app'));
require('./bootstrap');
从“React”导入React;
从'react dom'导入{render};
从“react Router”导入{Router,Route,browserHistory};
从“./components/Master”导入主控形状;
从“./components/CreateProduct”导入CreateProduct;
从“./components/DisplayProduct”导入DisplayProduct;
从“./components/UpdateProduct”导入UpdateProduct;
渲染(
,
document.getElementById('crud-app');
更新代码
在主js文件中,假设App.js
组件中已经为该链接设置了路由器
<li><Link to="display-item">Products</Link></li>
我在代码中看到,在渲染方法中没有用于渲染的
,您需要至少有一个。另外,我认为您在渲染方法中包含了document.getElement….
,这可能是导致问题的原因。谢谢Akhtar,我尝试了您的更改,但没有成功您的数据没有显示在表中?这是您的问题吗?不,当我单击要显示数据的产品链接时,数据在表中,但没有显示在屏幕上?你是说编辑链接吗?Akhtar,我在第一篇文章中也包含了app.js文件
<Route path="/display-item" exact component={DisplayProduct} />
import React, { Component } from 'react'
import ReactDOM from 'react-dom'
import { BrowserRouter, Route, Switch } from 'react-router-dom'
class App extends Component {
render () {
return (
<BrowserRouter>
<div>
<Header />
<Switch>
<Route path="/student" exact component={Student} />
<Route path="/classes" exact component={Classes} />
</Switch>
</div>
</BrowserRouter>
)
}
}
if (document.getElementById('app')) {
ReactDOM.render(<App />, document.getElementById('app'));
}