searchAlarm.4.js
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import React from 'react';
import '../../css/style.css'
import '../../../config';
import axios from "axios"; //导入axios
import { Row, Col, DatePicker, Checkbox, Pagination, Button } from 'antd';
const { RangePicker } = DatePicker;
let plainOptions = []
class SearchAlarm extends React.Component {
constructor(props) {
super(props);
this.state={
startTime : '',
endTime : '',
currentPage: 1,
totalPage:10,
defaultPageSize:55,
data:[],
indeterminate: false,
checkAll: false,
checkedList: []
};
}
// 时间
onTimeChange = (value,dateString) => {
let that = this;
this.setState({
startTime:dateString[0],
endTime:dateString[1]
},function(){
console.log(that.state.startTime)
console.log(that.state.endTime)
})
}
onOk = (value) => {
// 开始查询【日期选择】
this.queryImg()
}
queryImg = () =>{
let that = this
plainOptions = []
axios.post(global.constants.commonUrl+'/syImgMs/queryImg',
{
'request':'queryImg',
'reqInfo':{
'dateTimeS':this.state.startTime,
'dateTimeE':this.state.endTime,
'curPage':1,
'pageNum':this.state.defaultPageSize
}
})
.then(function (response) {
var resList = response['data']['resInfo']['imgList']
that.setState({
data:[],
indeterminate: false,
checkAll: false,
checkedList: [],
totalPage: response['data']['resInfo']['totalPages']
});
that.getImgData(resList,0)
})
.catch(function (error) {
//console.log(error);
});
}
getImgData = (resList, currI) =>{
var that = this
if(currI == resList.length)
return;
else{
axios.post(global.constants.commonUrl+'/syImgMs/getImgData',
{
'request':'getImgData',
'reqInfo':{
'imgId':resList[currI]['id']
}
})
.then(function (response) {
var nowData = response['data']['resInfo']
var stateData = that.state.data
stateData.push({
'id': nowData['id'],
'name': nowData['name'],
'time': nowData['time'],
'ext': nowData['ext'],
'data': nowData['data']
})
that.setState({
data:stateData
});
plainOptions.push(nowData['id'])
that.getImgData(resList, currI+1)
})
.catch(function (error) {
//console.log(error);
});
}
}
// 下载
onCheckBoxChange = checkedList => {
this.setState({
checkedList,
indeterminate: !!checkedList.length && checkedList.length < plainOptions.length,
checkAll: checkedList.length === plainOptions.length,
});
};
onChange = checkedList => {
this.setState({
checkedList,
indeterminate: !!checkedList.length && checkedList.length < plainOptions.length,
checkAll: checkedList.length === plainOptions.length,
});
};
onCheckAllChange = e => {
let that = this
this.setState({
checkedList: e.target.checked ? plainOptions : [],
indeterminate: false,
checkAll: e.target.checked,
},function(){
console.log(that.state.checkedList)
});
};
clickBtn = e =>{
console.log(this.state.checkedList)
var checkedList = this.state.checkedList
var data = this.state.data
for(var i=0;i<checkedList.length;i++){
for(var j=0;j<data.length;j++){
if(checkedList[i] == data[j]['id']){
var imgUrl = 'data:image/' + data[j]['ext'] + ';base64,'+ data[j]['data']
// 如果浏览器支持msSaveOrOpenBlob方法（也就是使用IE浏览器的时候），那么调用该方法去下载图片
if (window.navigator.msSaveOrOpenBlob) {
let bstr = atob(imgUrl.split(",")[1]);
let n = bstr.length;
let u8arr = new Uint8Array(n);
while (n--) {
u8arr[n] = bstr.charCodeAt(n);
}
let blob = new Blob([u8arr]);
window.navigator.msSaveOrOpenBlob(blob, data[j]['name'] + "." + data[j]['ext']);
} else {
// 这里就按照chrome等新版浏览器来处理
let a = document.createElement("a");
a.href = imgUrl;
a.setAttribute("download", data[j]['name']);
a.click();
}
break;
}
}
}
// var imgUrl = 'data:image/' + data['ext'] + ';base64,'+ data['data']
// this.state.data[0]['src']
// // 如果浏览器支持msSaveOrOpenBlob方法（也就是使用IE浏览器的时候），那么调用该方法去下载图片
// if (window.navigator.msSaveOrOpenBlob) {
// let bstr = atob(imgUrl.split(",")[1]);
// let n = bstr.length;
// let u8arr = new Uint8Array(n);
// while (n--) {
// u8arr[n] = bstr.charCodeAt(n);
// }
// let blob = new Blob([u8arr]);
// window.navigator.msSaveOrOpenBlob(blob, "chart-download" + "." + "png");
// } else {
// // 这里就按照chrome等新版浏览器来处理
// let a = document.createElement("a");
// a.href = imgUrl;
// a.setAttribute("download", "chart-download");
// a.click();
// }
//
// var imgUrl = this.state.data[1]['src']
// // 如果浏览器支持msSaveOrOpenBlob方法（也就是使用IE浏览器的时候），那么调用该方法去下载图片
// if (window.navigator.msSaveOrOpenBlob) {
// let bstr = atob(imgUrl.split(",")[1]);
// let n = bstr.length;
// let u8arr = new Uint8Array(n);
// while (n--) {
// u8arr[n] = bstr.charCodeAt(n);
// }
// let blob = new Blob([u8arr]);
// window.navigator.msSaveOrOpenBlob(blob, "chart-download" + "." + "png");
// } else {
// // 这里就按照chrome等新版浏览器来处理
// let a = document.createElement("a");
// a.href = imgUrl;
// a.setAttribute("download", "chart-download");
// a.click();
// }
}
// 页码
onPageChange = page => {
// 更新新页数据 后端交互
this.setState({
currentPage: page
});
this.queryImg()
};
render() {
let { data, currentPage, totalPage, defaultPageSize } = this.state
let that = this
return (
<div style={{
width:'100%',
position:'relative'
}}>
<div style={{
padding:'20px 0',
}}>
<RangePicker
showTime={{ format: 'HH:mm' }}
format="YYYY-MM-DD HH:mm"
onChange={this.onTimeChange}
onOk={this.onOk}
/>
<Checkbox
indeterminate={this.state.indeterminate}
onChange={this.onCheckAllChange}
checked={this.state.checkAll}
style={{
margin:'0 20px',
color:'white'
}}
>
Check all
</Checkbox>
<Button type="primary" onClick={this.clickBtn} style={{
margin:'0 20px'
}}>downLoad</Button>
</div>
<div style={{
height:'calc(100% - 105px)',
top:'80px',
width:'calc(100% - 20px)',
margin:'0 10px',
backgroundColor:'rgba(239, 192, 192, 0.1)'
}}>
{
data.length==0?null:
<Checkbox.Group style={{ width: '100%' }} onChange={that.onCheckBoxChange} value={this.state.checkedList}>
{
data.map((item)=>{
//console.log(item)
return <div key={item.id} style={{ width: 150, height:140, border:'1px solid rgba(255, 255, 255, 0.3)', margin:'10px', float:'left', position:'relative'}}>
<img style={{width:'100%', height:'100%'}} src={
'data:image/' + item['ext'] + ';base64,'+ item['data']
}/>
<Checkbox style={{
position:'absolute',
top:'-8px',
right:'-8px'
}} value={item.id} defaultChecked ></Checkbox>
</div>
})
}
</Checkbox.Group>
}
</div>
<Pagination hideOnSinglePage={true} showTitle={false} current={currentPage} onChange={this.onPageChange} pageSize={defaultPageSize} total={totalPage*defaultPageSize} />
</div>
);
}
};
export default SearchAlarm