cookie、localStorage、sessionStorage的使用
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>浏览器本地存储</title>
</head>
<body>
<button onclick="fun1()">cookie存储</button>
<button onclick="fun2()">cookie获取</button>
<button onclick="fun3()">localStorage存储</button>
<button onclick="fun4()">localStorage获取</button>
<button onclick="fun5()">sessionStorage存储</button>
<button onclick="fun6()">sessionStorage获取</button>
<script>
// 注意：cookie必须运行在服务器环境下,用http协议访问
function fun1(){
var dateExpire=new Date();
dateExpire.setDate(dateExpire.getDate()+1);
console.log(dateExpire) //cookie的过期时间，设置为1天后过期
document.cookie="he=哈哈哈;path=/;expires="+dateExpire;
}
function fun2(){
var str=document.cookie;
console.log(str)
}
var hxObj={
admin:{
name:'hx',
age:18
},
power:[
{power_id:1,power_name:'嘎嘎'},
{power_id:2,power_name:'哈哈'}
],
role:{
role_id:1,
role_name:'萨芬'
}
}
//注意：localStorage没有过期时间
function fun3(){
localStorage.setItem('he','嘻嘻')
console.log(JSON.stringify(hxObj))
localStorage.setItem('hxObj',JSON.stringify(hxObj))
}
function fun4(){
var str=localStorage.getItem('he')
console.log(str)
console.log(JSON.parse(localStorage.getItem('hxObj')))
}
//注意：sessionStorage关闭浏览器就消失
function fun5(){
sessionStorage.setItem('he','哈哈')
}
function fun6(){
var str=sessionStorage.getItem('he')
console.log(str)
}
</script>
</body>
</html>