通常,我們在解決頁面之間傳值的時候,最常用的方法就是本地存儲和URL帶參數過來,然後在用的那一頁進行獲取,本地存儲又分爲cookie和localstorage,在小程序中,捨棄了cookie,只支持localstorage,所以,接下來就爲大家介紹下小程序中如何在頁面之間傳值
一、localstorage
1、設置存儲:
wx.setStorageSync('session_id', session_id);
2、讀取存儲:在使用的頁面執行如下操作let session_id = wx.getStorageSync('session_id');
二、URL帶參數wx.switchTab({
url: '../index/index?session_id=' + session_id
})
2、讀取存儲:(必須在生命週期函數中讀取!)onLoad: function (options) {
let that = this;
this.setData({
//把讀取出來的數據存儲到頁面的數據data中
session_id: options.session_id
})
}
此處一定要注意,options.session_id即可把存儲在本地的session_id給取出來,這還沒有完,要想在其他自定義的data: {
mailCode: "發送驗證碼",
boolean: true,
isChecked: false,
phone: '',
phoneTip:'',
keyCode: '',
keyCodeTip:'',
userName: '',
userNameTip: '',
userPassword: '',
userPasswordTip: '',
next: '',
code: '',
session_id:''
},
比如說如下情況,用戶登錄要用到這個session_id,需要和用戶名等一起發過去,那麼這裏就要這樣做//登錄
oLogin: function ( ) {
let that = this;
var pre = that.data;
let avatarUrl = wx.getStorageSync('avatarUrl');
wx.request({
url: 'https://www.muwai.com/index.php/Xcx/Login/wx_login',
data: { session_id: pre.session_id, username: pre.userName, phone: pre.phone, password: pre.userPassword, phone_code: pre.keyCode, head_photo: avatarUrl},
success: res => {
//成功的話直接跳轉到首頁
let oStatus = res.data.status;
if (oStatus == 100) {
let session_id = res.data.session_id;
wx.setStorageSync('session_id', session_id);
wx.switchTab({
url: '../index/index?session_id=' + session_id
})
}
}
})
}
這裏登錄的時候就要用到,所以用的時候去data裏面取即可,用that.data.session_id即可取到覺得幫到你的話動動小手點個贊吧