微信小程序 Storage API实例详解

<!--动态获取数据-->
<text>{{storageContent}}</text>
<!--存-->
<button type="primary" bindtap="listenerStorageSave">storage存储信息会在text上显示</button>
<!--取-->
<button type="primary" bindtap="listenerStorageGet">获取storage存储的信息</button>
<!--清-->
<button type="warn" bindtap="listenerStorageClear">清楚异步存储数据</button>


<text>{{storageSyncContent}}</text>
<button type="primary" bindtap="listenerStorageSyncSave">storageSync存储信息会在text上显示</button>
<button type="primary" bindtap="listenerStorageSyncGet">获取storageSync存储信息</button>
<button type="warn" bindtap="listenerStorageSyncClear">清除同步存储数据</button>

Page({
 data:{
  // text:"这是一个页面"
  storageContent: '',
  storageSyncContent: ''
 },
 onLoad:function(options){
  // 页面初始化 options为页面跳转所带来的参数
 },
 /
   异步存储
  /
 listenerStorageSave: function() {
  //以键值对的形式存储 传进去的是个对象
  wx.setStorage({
   key: 'key',
   data: '我是storeage异步存储的信息',
   suess: function(res) {
    console.log(res)
   }
  })
 },
 /
   异步取信息
  /
 listenerStorageGet: function() {
  var that = this;
  wx.getStorage({
   //获取数据的key
   key: 'key',
   suess: function(res) {
    console.log(res)
    that.setData({
     //
     storageContent: res.data
    })
   },
   /
     失败会调用
    /
   fail: function(res) {
    console.log(res)
   }
  })
 },

 /
   清除数据
  /
 listenerStorageClear: function() {
  var that = this;
  wx.clearStorage({
   suess: function(res) {
    that.setData({
     storageContent: ''
    })
   }
  })
 },


 /
   数据同步存储
  /
 listenerStorageSyncSave: function() {
  wx.setStorageSync('key', '我是同步存储的数据')
 },

 /
   数据同步获取
  /
 listenerStorageSyncGet: function() {
  // var that = this;
  var value = wx.getStorageSync('key')
  this.setData({
   storageSyncContent: value
  })
 },

 /
   清除同步存储数据
  /
 listenerStorageSyncClear: function() {
  wx.clearStorageSync()
 },

 onReady:function(){
  // 页面渲染完成
 },
 onShow:function(){
  // 页面显示
 },
 onHide:function(){
  // 页面隐藏
 },
 onUnload:function(){
  // 页面关闭
 }
})