本地HTML文件上的IndexedDB [英] IndexedDB over local HTML file

问题描述

我想开发一个使用浏览器与用户交互的应用程序.该应用程序可以脱机使用，并可以通过zip分发.

I would like to develop an application which uses a browser to interact with the user. The application is to be available offline and distributable via a zip.

我想执行的功能将由HTML，CSS，JS处理，并且我想利用IndexedDB功能.

The functions I would like to perform are to be handled by HTML, CSS, JS and I would like to make use of the IndexedDB functionality.

我遇到了IndexedDB(Chrome)的问题，因为相同的代码可以在联机空间中工作，但不能在本地硬盘驱动器位置(file://)工作.

I have hit a problem with IndexedDB (Chrome) in that the same code works in an online space but not from a local hard drive location (file://).

请参考示例: http://jsfiddle.net/FwuUD/

(function() {

    var db;
    var dbreq = indexedDB.open("TestApp", 2);

    dbreq.onsuccess = function(e) {
        alert("Database created");
        db = e.target.result;

        var employeeStore = db.createObjectStore (
            "employees",
            {keyPath: "id"}
        );

    };

    dbreq.onerror = function(e) {
        alert("Database Error: " + e.target.errorCode);
    };

    dbreq.onupgradeneeded = function(e) {
        alert("Database upgrade needed");
    };

})();

有什么建议吗?

推荐答案

indexedDB API仅在Web服务器内部起作用.当您使用文件系统导航到它时，它将无法工作. indexedDB API需要使用域上下文，而文件系统不提供该上下文.简而言之，您需要一个URL才能使用api.

The indexedDB API only works inside a webserver. When you navigate to it using the file system it won't work. The indexedDB API needs a domain context to work in and the file system doesn't provide that. Short you need an url to use the api.

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