Node Electron Require issues with SQLAnywhere - Error: Could not load modules

Node Electron Require issues with SQLAnywhere - Error: Could not load modules

我是 Electron 的新手,在使用 sqlanywhere 包时遇到问题。

我正在做一个非常基本的测试,sqlanywhere 在尝试加载其驱动程序时立即抛出错误。请注意,在我将 Electron 引入此应用程序之前,这一切正常。

这是我的示例代码:

const sqlanywhere = require('sqlanywhere');
const url = require('url');
const path = require('path');
const { app, BrowserWindow, Menu, Tray, ipcMain } = require('electron');

let conn = sqlanywhere.createConnection();

var conn_params = {
    Host  : 'localhost:2638',
    UserId  : 'user',
    Password: 'password',
    ConnectionPool: 'YES(MaxCached=10)'
};


conn.connect(conn_params, function(err) {

  if (err) throw err;    

  conn.exec('SELECT * from mytable', function (err, result) {    
      if (err) throw err;  
      console.log(result[0]);      
      conn.disconnect();
  })
});



let mainWindow;

  app.on('ready', () => {

  console.log("Started...");

  // Create Window
  mainWindow = new BrowserWindow({
      width: 200,
      height: 200        
  });

  // Load HTML file into Window
  mainWindow.loadURL(url.format({
      pathname: path.join(__dirname, 'mainWindow.html'),
      protocol: 'file:',
      slashes: true
  }));     



});

抛出的错误是:

"Uncaught Exception: Error: Could not load modules for Platform: 'win32', Process Arch: 'x64', and Version: 'v7.9.0"

在我看来,Electron 处理 sqlanywhere 包中的 'require' 语句的方式导致了问题。 sqlanywhere的index.js是:

    // ***************************************************************************
    // Copyright (c) 2017 SAP SE or an SAP affiliate company. All rights reserved.
    // ***************************************************************************
    var db = null;
    var driver_file = "sqlanywhere"

    var v = process.version;
    var match = v.match( 'v([0-9]+)\.([0-9]+)\.[0-9]+' );
    driver_file += '_v' + match[1];
    if( match[1]+0 == 0 ) {
        driver_file += '_' + match[2];
    }

    try {
        if( process.arch == "x64" ) {
        db = require( "./../bin64/" + driver_file );

        } else if( process.arch == "ia32" ) {
        db = require( "./../bin32/" + driver_file );

        } else {
        throw new Error( "Platform Not Supported" );
        }
    } catch( err ) {
        try {
        // Try finding natively compiled binaries
        console.log("Error thrown"); // added by me
        console.log("DB: " + db);    // db is null
        db = require( "./../build/Release/sqlanywhere.node" ); 
        } catch( err ) {
        throw new Error( "Could not load modules for Platform: '" + 
                process.platform + "', Process Arch: '" + process.arch +
                "', and Version: '" + process.version +"'" ); 
        }
    }
    module.exports = db;

我添加了上面的两个 console.log 语句以确认正在执行 catch 块,此时 db 仍然为空,而此时它应该已经加载了 x64 驱动程序。同样,这在涉及 Electron 之前一直有效。

Electron 似乎有问题

db = require( "./../bin64/" + driver_file );

如果有人能提供任何见解,我将永远感激不已!

谢谢

我假设您尝试加载的模块包含本机模块。本机模块需要 node.js 进程与编译的二进制文件之间的版本匹配,这意味着如果 node.js 版本在您的节点安装与 Electron 之间不匹配,模块将无法加载。您可以匹配这些特定版本,或使用 https://github.com/electron/electron-rebuild 生成正确的二进制文件。