## 新增页面
1. 我们到Demo文件夹下新建文件DemoAdd.js
~~~
import React, { PureComponent } from 'react';
import { Form, Input, Card, Button, DatePicker } from 'antd';
import moment from 'moment';
import Panel from '../../../components/Panel';
import styles from '../../../layouts/Sword.less';
const FormItem = Form.Item;
const { TextArea } = Input;
@Form.create()
class DemoAdd extends PureComponent {
render() {
const {
form: { getFieldDecorator },
} = this.props;
const formItemLayout = {
labelCol: {
xs: { span: 24 },
sm: { span: 7 },
},
wrapperCol: {
xs: { span: 24 },
sm: { span: 12 },
md: { span: 10 },
},
};
const action = (
<Button type="primary">
提交
</Button>
);
return (
<Panel title="新增" back="platform/demo" action={action}>
<Form hideRequiredMark style={{ marginTop: 8 }}>
<Card title="基本信息" className={styles.card} bordered={false}>
<FormItem {...formItemLayout} label="标题">
{getFieldDecorator('title')(<Input placeholder="请输入标题" />)}
</FormItem>
<FormItem {...formItemLayout} label="时间">
{getFieldDecorator('date')(
<DatePicker
style={{ width: '100%' }}
format="YYYY-MM-DD HH:mm:ss"
showTime={{ defaultValue: moment('00:00:00', 'HH:mm:ss') }}
/>
)}
</FormItem>
<FormItem {...formItemLayout} label="内容">
{getFieldDecorator('content')(
<TextArea style={{ minHeight: 32 }} placeholder="请输入内容" rows={10} />
)}
</FormItem>
</Card>
</Form>
</Panel>
);
}
}
export default DemoAdd;
~~~
2. 主要需要注意的是引入了form中的`getFieldDecorator`，用于进行表单操作、数据绑定、数据获取等功能
3. 当写入组件的时候，需要被`getFieldDecorator`包装起来，具体语法如下
~~~
{getFieldDecorator('title')(<Input placeholder="请输入标题" />)}
~~~
4. 这样生成了组件后，他的值就会和对于设定的字段进行绑定，从而对其进行操作
5. 页面写好后，我们到路由配置文件`router.config.js`增加路径
6. 打开系统点击新增按钮后发现页面跳转成功
## 表单提交
1. 页面构建成功，接下来我们需要的就是提交表单的数据
2. 增加按钮点击事件
~~~
handleSubmit = e => {
e.preventDefault();
const { form } = this.props;
form.validateFieldsAndScroll((err, values) => {
if (!err) {
console.log(values)
}
});
};
~~~
~~~
const action = (
<Button type="primary" onClick={this.handleSubmit}>
提交
</Button>
);
~~~
3. 打开系统控制台，输入一些数据提交，查看打印正确
## 表单校验
1. 为了保证业务数据的准确性，表单提交前需要做数据校验
2. 我们先做一个最简单的非空校验，修改如下代码
将原先的
~~~
{getFieldDecorator('title')(<Input placeholder="请输入标题" />)}
~~~
修改为
~~~
{getFieldDecorator('title', {
rules: [
{
required: true,
message: '请输入标题',
},
],
})(<Input placeholder="请输入标题" />)}
~~~
3. 可以看到，在getFieldDecorator方法的入参中加入了一个json对象，值是rules，对应着校验规则（更多内容请看官方文档：https://ant.design/components/form-cn/）
~~~
{
rules: [
{
required: true,
message: '请输入标题',
},
],
}
~~~
4. 打开系统，不输入日期，点击提交发现提示，校验成功
## 对接接口
1. 到mockjs中新建api提交的接口，增加fakeSuccess返回
~~~
function fakeSuccess(req, res) {
const json = { code: 200, success: true, msg: '操作成功' };
return res.json(json);
}
const proxy = {
'GET /api/demo/list': getFakeList,
'GET /api/demo/detail': getFakeDetail,
'POST /api/demo/submit': fakeSuccess,
'POST /api/demo/remove': fakeSuccess,
};
export default delay(proxy, 1000);
~~~
2. 优化handelSubmit方法，增加submit方法传入表单数据values供api调用
~~~
handleSubmit = e => {
e.preventDefault();
const { form } = this.props;
form.validateFieldsAndScroll((err, values) => {
if (!err) {
submit(values).then(resp => {
if (resp.success) {
message.success('提交成功');
router.push('/platform/demo');
} else {
message.warn(resp.msg);
}
});
}
});
};
~~~
3. 打开系统点击提交发现提交成功，network监听传递参数无误
4. 但是有一点需要注意的是，传递过去的日期类型并非标准的`YYYY-MM-DD HH:mm:ss`，所以需要再次优化下提交代码
~~~
handleSubmit = e => {
e.preventDefault();
const { form } = this.props;
form.validateFieldsAndScroll((err, values) => {
if (!err) {
const params = {
...values,
date: func.format(values.date),
};
submit(params).then(resp => {
if (resp.success) {
message.success('提交成功');
router.push('/platform/demo');
} else {
message.warn(resp.msg);
}
});
}
});
};
~~~
5. 再次提交查看参数传递给接口的格式已经正确
6. 最后以下附上完整代码
~~~
import React, { PureComponent } from 'react';
import router from 'umi/router';
import { Form, Input, Card, Button, message, DatePicker } from 'antd';
import moment from 'moment';
import Panel from '../../../components/Panel';
import styles from '../../../layouts/Sword.less';
import { submit } from '../../../services/demo';
import func from '../../../utils/Func';
const FormItem = Form.Item;
const { TextArea } = Input;
@Form.create()
class DemoAdd extends PureComponent {
handleSubmit = e => {
e.preventDefault();
const { form } = this.props;
form.validateFieldsAndScroll((err, values) => {
if (!err) {
const params = {
...values,
date: func.format(values.date),
};
submit(params).then(resp => {
if (resp.success) {
message.success('提交成功');
router.push('/platform/demo');
} else {
message.warn(resp.msg);
}
});
}
});
};
render() {
const {
form: { getFieldDecorator },
} = this.props;
const formItemLayout = {
labelCol: {
xs: { span: 24 },
sm: { span: 7 },
},
wrapperCol: {
xs: { span: 24 },
sm: { span: 12 },
md: { span: 10 },
},
};
const action = (
<Button type="primary" onClick={this.handleSubmit}>
提交
</Button>
);
return (
<Panel title="新增" back="/platform/demo" action={action}>
<Form hideRequiredMark style={{ marginTop: 8 }}>
<Card title="基本信息" className={styles.card} bordered={false}>
<FormItem {...formItemLayout} label="标题">
{getFieldDecorator('title', {
rules: [
{
required: true,
message: '请输入标题',
},
],
})(<Input placeholder="请输入标题" />)}
</FormItem>
<FormItem {...formItemLayout} label="日期">
{getFieldDecorator('date', {
rules: [
{
required: true,
message: '请输入日期',
},
],
})(
<DatePicker
style={{ width: '100%' }}
format="YYYY-MM-DD HH:mm:ss"
showTime={{ defaultValue: moment('00:00:00', 'HH:mm:ss') }}
/>
)}
</FormItem>
<FormItem {...formItemLayout} label="内容">
{getFieldDecorator('content')(
<TextArea style={{ minHeight: 32 }} placeholder="请输入内容" rows={10} />
)}
</FormItem>
</Card>
</Form>
</Panel>
);
}
}
export default DemoAdd;
~~~