用循环遍历渲染出了登陆用户的信息，怎么通过单条数据查询用户整体信息.

import React from 'react';
import { Segment, Input, Button } from 'semantic-ui-react'
import moment from "moment/moment";

export default class View extends React.Component {
constructor() { //构造函数
super();
this.state = {

}
this.userChange = this.userChange.bind(this);
this.passwordChange = this.passwordChange.bind(this);
this.submit = this.submit.bind(this);
}

userChange(e){
this.setState({ user : e.target.value })
}

passwordChange(e){
this.setState({ password : e.target.value })
}

submit(){

if(window.localStorage.send){
    var arr = JSON.parse(window.localStorage.send);
}else{
    arr = [];
}
let time = moment().format('YYYY-MM-DD HH:MM:SS');

if(this.state.user==='1234'&&this.state.password==='1234'){
    window.alert('登陆成功');
    let text = {user:this.state.user,password:this.state.password,time:time,state:'登陆成功'};
    arr.push(text);
    window.localStorage.send = JSON.stringify(arr);
    this.props.history.push('/Page')
}else{
    window.alert('登陆失败');
    let text = {user:this.state.user,password:this.state.password,time:time,state:'登陆失败'};
    arr.push(text);
    window.localStorage.send = JSON.stringify(arr);

}

// localStorage.clear();
}

render(){
return(
<div style={{margin:'10px'}}>
<Segment style={{textAlign:'center'}}>
<h2>请登录</h2>
<Input
id='user'
placeholder='用户名'
style={{marginBottom:'10px'}}
onChange={this.userChange}
/><br/>
<Input
id='password'
type='password'
placeholder='密码'
style={{marginBottom:'10px'}}
onChange={this.passwordChange}
/><br/>
<Button
primary
content='登录'
style={{marginBottom:'10px'}}
onClick={this.submit}
/>
</Segment>
</div>
)
}
}

import React from 'react';
import { Segment, Input, Button } from 'semantic-ui-react'

class Page extends React.Component{

constructor(){
    super();
    this.state = {
    }
}

render(){

    let send1 = window.localStorage.getItem("send");
    send1 = JSON.parse(send1);
    console.log(send1);

    return(
        <div>{send1.map(item=><div key={item.user}>
        <ul >
        <li>user:{item.user}</li>
        <li>password:{item.password}</li>
        <li>time:{item.time}</li>
        <li>state:{item.state}</li>
        </ul>
        </div>)}
        </div>

)

}

}

export default Page;