将azure移动服务表脚本(Blob上传)迁移到azure应用程序服务

问题描述 投票:0回答:1

我正在将我的应用程序从旧的 azure 移动服务迁移到新的 azure 应用服务。

在旧的 azure 移动服务中,我使用此表脚本插入到我的图像表中。

var azure = require('azure');
var qs = require('querystring');
var appSettings = require('mobileservice-config').appSettings;

function insert(item, user, request) {
// Get storage account settings from app settings. 
var accountName = appSettings.STORAGE_ACCOUNT_NAME;
var accountKey = appSettings.STORAGE_ACCOUNT_ACCESS_KEY;
var host = accountName + '.blob.core.windows.net';

if ((typeof context.item.containerName !== "undefined") && (
context.item.containerName !== null)) {
    // Set the BLOB store container name on the item, which must be lowercase.
    context.item.containerName = context.item.containerName.toLowerCase();

    // If it does not already exist, create the container 
    // with public read access for blobs.        
    var blobService = azure.createBlobService(accountName, accountKey, host);
    blobService.createContainerIfNotExists(context.item.containerName, {
        publicAccessLevel: 'blob'
    }, function (error) {
        if (!error) {

            // Provide write access to the container for the next 5 mins.        
            var sharedAccessPolicy = {
                AccessPolicy: {
                    Permissions: azure.Constants.BlobConstants.SharedAccessPermissions.WRITE,
                    Expiry: new Date(new Date().getTime() + 5 * 60 * 1000)
                }
            };

            // Generate the upload URL with SAS for the new image.
            var sasQueryUrl =
            blobService.generateSharedAccessSignature(context.item.containerName,
            context.item.resourceName, sharedAccessPolicy);

            // Set the query string.
            context.item.sasQueryString = qs.stringify(sasQueryUrl.queryString);

            // Set the full path on the new new item, 
            // which is used for data binding on the client. 
            item.imageUri = sasQueryUrl.baseUrl + sasQueryUrl.path;

        } else {
            console.error(error);
        }
        context.execute();
    });
} else {
    context.execute();
}
}

为了迁移,我为新的应用程序服务重写了它,

var table = module.exports = require('azure-mobile-apps').table();
var azure = require('azure');
var qs = require('querystring');
var appSettings = require('mobileservice-config').appSettings;

function insertPhoto(context) {
// Get storage account settings from app settings. 
var accountName = appSettings.STORAGE_ACCOUNT_NAME;
var accountKey = appSettings.STORAGE_ACCOUNT_ACCESS_KEY;
var host = accountName + '.blob.core.windows.net';

if ((typeof context.item.containerName !== "undefined") && (
context.item.containerName !== null)) {
    // Set the BLOB store container name on the item, which must be lowercase.
    context.item.containerName = context.item.containerName.toLowerCase();

    // If it does not already exist, create the container 
    // with public read access for blobs.        
    var blobService = azure.createBlobService(accountName, accountKey, host);
    blobService.createContainerIfNotExists(context.item.containerName, {
        publicAccessLevel: 'blob'
    }, function (error) {
        if (!error) {

            // Provide write access to the container for the next 5 mins.        
            var sharedAccessPolicy = {
                AccessPolicy: {
                    Permissions: azure.Constants.BlobConstants.SharedAccessPermissions.WRITE,
                    Expiry: new Date(new Date().getTime() + 5 * 60 * 1000)
                }
            };

            // Generate the upload URL with SAS for the new image.
            var sasQueryUrl =
            blobService.generateSharedAccessSignature(context.item.containerName,
            context.item.resourceName, sharedAccessPolicy);

            // Set the query string.
            context.item.sasQueryString = qs.stringify(sasQueryUrl.queryString);

            // Set the full path on the new new item, 
            // which is used for data binding on the client. 
            item.imageUri = sasQueryUrl.baseUrl + sasQueryUrl.path;

        } else {
            console.error(error);
        }
        context.execute();
    });
} else {
    context.execute();
}
};

table.insert(insertPhoto);

但是,当我执行它时,我收到一个内部服务器错误,说

错误:找不到模块“azure”

这是完整的错误日志:

2016-05-09T19:02:06  Welcome, you are now connected to log-streaming service.
2016-05-09T19:02:23.812Z - �[31merror�[39m: Unable to load D:\home\site\wwwroot\tables\photos.js Error: Cannot find module 'azure'
at Function.Module._resolveFilename (module.js:337:15)
at Function.Module._load (module.js:287:25)
at Module.require (module.js:366:17)
at require (module.js:385:17)
at Object.<anonymous>
(D:\home\site\wwwroot\tables\photos.js:11:13)
at Module._compile (module.js:435:26)
at Object.Module._extensions..js (module.js:442:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:311:12)
at Module.require (module.js:366:17)
at require (module.js:385:17)

Mon May 09 2016 19:02:23 GMT+0000 (Coordinated Universal Time): Application has thrown an uncaught exception and is terminated:
Error: Cannot find module 'azure'
at Function.Module._resolveFilename (module.js:337:15)
at Function.Module._load (module.js:287:25)
at Module.require (module.js:366:17)
at require (module.js:385:17)
at Object.<anonymous>
    (D:\home\site\wwwroot\tables\photos.js:11:13)
    at Module._compile (module.js:435:26)
    at Object.Module._extensions..js (module.js:442:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Module.require (module.js:366:17)
    at require (module.js:385:17)
    Application has thrown an uncaught exception and is terminated:
    Error: Cannot find module 'azure'
    at Function.Module._resolveFilename (module.js:337:15)
    at Function.Module._load (module.js:287:25)
    at Module.require (module.js:366:17)
    at require (module.js:385:17)
    at Object.<anonymous>
        (D:\home\site\wwwroot\tables\photos.js:11:13)
        at Module._compile (module.js:435:26)
        at Object.Module._extensions..js (module.js:442:10)
        at Module.load (module.js:356:32)
        at Function.Module._load (module.js:311:12)
        at Module.require (module.js:366:17)
        at require (module.js:385:17)
        <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
        <html xmlns="http://www.w3.org/1999/xhtml">
        <head>
            <title>IIS Detailed Error - 500.1002 - Internal Server Error</title>
            <style type="text/css">
        </head>
        <body>
            <div id="content">
                <div class="content-container">
                    <h3>HTTP Error 500.1002 - Internal Server Error</h3>
                    <h4>The page cannot be displayed because an internal server error has occurred.</h4>
                </div>
                <div class="content-container">
                    <fieldset>
                        <h4>Most likely causes:</h4>
                        <ul>    <li>IIS received the request; however, an internal error occurred during the processing of the request. The root cause of this error depends on which module handles the request and what was happening in the worker process when this error occurred.</li>    <li>IIS was not able to access the web.config file for the Web site or application. This can occur if the NTFS permissions are set incorrectly.</li>    <li>IIS was not able to process configuration for the Web site or application.</li>     <li>The authenticated user does not have permission to use this DLL.</li>   <li>The request is mapped to a managed handler but the .NET Extensibility Feature is not installed.</li> </ul>
                    </fieldset>
                </div>
                <div class="content-container">
                    <fieldset>
                        <h4>Things you can try:</h4>
                        <ul>    <li>Ensure that the NTFS permissions for the web.config file are correct and allow access to the Web server's machine account.</li>     <li>Check the event logs to see if any additional information was logged.</li>  <li>Verify the permissions for the DLL.</li>    <li>Install the .NET Extensibility feature if the request is mapped to a managed handler.</li>  <li>Create a tracing rule to track failed requests for this HTTP status code. For more information about creating a tracing rule for failed requests, click <a href="http://go.microsoft.com/fwlink/?LinkID=66439">here</a>. </li> </ul>
                    </fieldset>
                </div>

                <div class="content-container">
                    <fieldset>
                        <h4>Detailed Error Information:</h4>
                        <div id="details-left">
                            <table border="0" cellpadding="0" cellspacing="0">
                                <tr class="alt"><th>Module</th><td>&nbsp;&nbsp;&nbsp;iisnode</td></tr>
                                <tr><th>Notification</th><td>&nbsp;&nbsp;&nbsp;ExecuteRequestHandler</td></tr>
                                <tr class="alt"><th>Handler</th><td>&nbsp;&nbsp;&nbsp;iisnode</td></tr>
                                <tr><th>Error Code</th><td>&nbsp;&nbsp;&nbsp;0x00000002</td></tr>

                            </table>
                        </div>
                        <div id="details-right">
                            <table border="0" cellpadding="0" cellspacing="0">
                                <tr class="alt"><th>Requested URL</th><td>&nbsp;&nbsp;&nbsp;http://selfiecontestdev:80/app.js</td></tr>
                                <tr><th>Physical Path</th><td>&nbsp;&nbsp;&nbsp;D:\home\site\wwwroot\app.js</td></tr>
                                <tr class="alt"><th>Logon Method</th><td>&nbsp;&nbsp;&nbsp;Anonymous</td></tr>
                                <tr><th>Logon User</th><td>&nbsp;&nbsp;&nbsp;Anonymous</td></tr>

                            </table>
                            <div class="clear"></div>
                        </div>
                    </fieldset>
                </div>

                <div class="content-container">
                    <fieldset>
                        <h4>More Information:</h4>
                        This error means that there was a problem while processing the request. The request was received by the Web server, but during processing a fatal error occurred, causing the 500 error.
                        <p><a href="http://go.microsoft.com/fwlink/?LinkID=62293&amp;IIS70Error=500,1002,0x00000002,9200">View more information &raquo;</a></p>
                        <p>Microsoft Knowledge Base Articles:</p>


                    </fieldset>
                </div>
            </div>
        </body>
    </html>
    {"level":1,"message":"request","timestamp":1462820578207,"responseTime":0,"method":"POST","path":"/dev/api/telemetry/wwwroot/","statusCode":201}
    2016-05-09T19:04:06  No new trace in the past 1 min(s).

我应该怎样修复脚本?

node.js azure azure-mobile-services visual-studio-cordova azure-app-service-envrmnt
1个回答
1
投票

随着移动应用程序的架构从移动服务发生变化,现在移动应用程序迁移到Azure应用程序服务。

实际上Node.js中的Mobile Apps后端是一个expressjs项目,而node的mobile app sdk是express的中间件。

因此您可以将您的移动应用程序下载到本地(请参阅如何:使用Git下载Node.js后端快速入门代码项目),我们可以利用应用程序根目录中的

package.json
文件来维护您需要的nodejs模块,然后通过git部署到Azure,Azure App Service将通过部署任务安装依赖项。您可以参阅将 Node.js 模块与 Azure 应用程序一起使用了解更多信息。

同时,您可以利用 Kudu 控制台站点或 Visual Studio 在线扩展在线快速安装 Nodejs 模块。这些在线工具的大致思路可以参考How to run django manage.py command on Azure App Service的答案。

如有任何疑问,请随时告诉我。

© www.soinside.com 2019 - 2024. All rights reserved.