如何在chrome扩展中重新加载浏览器后保留变量的值 [英] How can I keep the value of variable after reload browser in chrome extensions

问题描述

我的目标是将URL和电子邮件发送到PHP服务器，但现在我将它们发送到控制台。

我的问题是保存用户输入到我的分机的最后一封电子邮件。
现在，当我关闭浏览器时，电子邮件的值将变为未定义。

我把我的扩展的整个代码放进去，但我认为问题必须是



$ p> //变量defenitions：
var email;
var urll;
//函数：

函数getemail（）{
email = window.prompt（请输入您的电子邮件地址：）;
chrome.storage.sset.set（{'email'：email}，function（）{
alert（'You entered \\\
['+ email +] \\\
as Email address。 \感谢您的注册。）;
}）;
var id = chrome.contextMenus.create（{title：提交你的网址，onclick：consollog}）;
var id = chrome.contextMenus.create（{title：email +/ Change，onclick：getemail}）;
chrome.contextMenus.remove（1，null）;
chrome.contextMenus.remove（2，null）;
var id = chrome.contextMenus.create（{id：2，title：SUPPORT，onclick：support}）;



函数create（）{
var id = chrome.contextMenus.create（{title：提交您的网址，onclick： consollog}）;
var id = chrome.contextMenus.create（{title：email +/ Change，onclick：getemail}）;
chrome.contextMenus.remove（1，null）;
chrome.contextMenus.remove（2，null）;
var id = chrome.contextMenus.create（{id：2，title：SUPPORT，onclick：support}）;
}
function support（）{
alert（联系方式：\\\
Phone number：+ 989378114692\\\
Email address：[e-mail]）;


函数consollog（info，tab）{
chrome.tabs.query（{
'active'：true，currentWindow：true，
$ {
urll = lTabs [0] .url;
console.log（urll）
console.log（email）
alert（'You发送'+ urll +'到我们的服务器'）;
}）;
}
//菜单项：
if（email == undefined）{
var id = chrome.contextMenus.create（{id：1，title ：注册邮件，onclick：getemail}）;
}
else {create（）;}


var id = chrome.contextMenus.create（{id：2，title： 载体， 点击：支持}）;


manifest.json：

  {
name：Jenco，
description：此扩展可以帮助您发送url，
version：0.9， 
browser_action：{
default_icon：32.png，
default_popup：mypopup.html}，
permissions：[contextMenus ，tabs，activeTab，http：// * / *，https：// * / *，storage]，
background：{
scripts ：[background.js] 
}，
manifest_version：2，
图标：{16：16.png，
32 ：32.png，
48：48.png}，
commands：{
send-url：{
suggested_key： {default：Ctrl + Shift + Z}，
description：发送一个url
} 
} 
} 
  
解决方案
我的代码保存一个变量并加载一个变量：
 
 
  //保存
 chrome.storage。 sync.set（{variableName：value}）; 
 //加载1件事
 chrome.storage.sync.get（variableName，function（result）{
 //显示请求的变量值
 alert（result.variableName ）; 
}）; 
 //加载更多东西
 chrome.storage.sync.get（[variableName，variableNameTheSecond]，function（result）{
 //先显示第一个，然后显示第二个
 alert（result.variablename）; 
 alert（result.variableNameTheSecond）; 
}）; 
  
我希望这可以帮助你，迎接
 
 
 Ebbe 
 
I am writing my first chrome extension and I am kind of new in this field.

My goal is sending url and email to a PHP server, but for now I send them to console.

My problem is saving the last email that user has entered to my extension.
Right now when I close the browser the value of email will change to undefined.

I put entire code of my extension, but I think the problem must be in getemail function.

background.js
//variables defenitions:
var email;
var urll;
//functions:

function getemail(){
     email = window.prompt("Pleas  enter your Email address:");
     chrome.storage.sync.set({'email':email}, function() {
      alert('You entered \n[' + email + "]\n as Email address.\nThank you for registration." );
      });
        var id = chrome.contextMenus.create({"title": "Submit your url","onclick":consollog });
        var id = chrome.contextMenus.create({"title": email+"/Change" ,"onclick":getemail });
        chrome.contextMenus.remove("1", null);
        chrome.contextMenus.remove("2", null);
        var id = chrome.contextMenus.create({"id":"2","title": "SUPPORT","onclick":support});
     }


function create(){
        var id = chrome.contextMenus.create({"title": "Submit your url","onclick":consollog });
        var id = chrome.contextMenus.create({"title": email+"/Change" ,"onclick":getemail });
        chrome.contextMenus.remove("1", null);
        chrome.contextMenus.remove("2", null);
        var id = chrome.contextMenus.create({"id":"2","title": "SUPPORT","onclick":support});
     }
function support(){
    alert("Contact ways:\nPhone number:[phone]\nEmail address:[e-mail]");
  }

function consollog(info, tab) {
  chrome.tabs.query({
  'active':true,"currentWindow": true,
}, function(lTabs) {
    urll=lTabs[0].url;
  console.log(urll)
  console.log(email)
  alert('You sent "' + urll + '" to our server');
});
}
//menu items:
if(email==undefined){
   var id = chrome.contextMenus.create({"id":"1","title": "Register Email","onclick":getemail });
    } 
   else {create();}


var id = chrome.contextMenus.create({"id":"2","title": "SUPPORT","onclick":support});
manifest.json:
{
   "name": "Jenco",
   "description": "This extension helps you to send url",
   "version": "0.9",
   "browser_action":{
      "default_icon":"32.png",
      "default_popup":"mypopup.html"},
   "permissions": ["contextMenus","tabs","activeTab", "http://*/*", "https://*/*","storage"],
   "background": {
      "scripts": ["background.js"]
      },
   "manifest_version": 2,
   "icons": { "16": "16.png",
              "32": "32.png",
              "48": "48.png" },
   "commands": {
      "send-url": {
         "suggested_key": { "default": "Ctrl+Shift+Z" },
         "description": "Send an url"
                    }
                }
}

解决方案
My codes to save a variable and to load a variable:
// Saving
chrome.storage.sync.set({"variableName": value});
// Loading 1 thing
chrome.storage.sync.get("variableName", function(result){
    // Showing the requested variable value
    alert(result.variableName);
});
// Loading more things
chrome.storage.sync.get(["variableName", "variableNameTheSecond"], function(result){
    // Showing first the first one and then the second one
    alert(result.variablename);
    alert(result.variableNameTheSecond);
});
I hope this helps you, greets

Ebbe

                        
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