mysql - 如何将命令 mysqlx 导入到我的 React 应用程序中？

Question

我正在尝试将命令 mysqlx 导入到我的 React 应用程序中。

我尝试了几种不同的方法，但它无法识别控制台中的命令 mysqlx。看来如果不将其导入应用程序我就无法调用它。我对此很陌生，所以这可能很简单。这一切都在本地 Windows 机器上进行。

import mysqlx from '@mysql/xdevapi'

在我尝试运行该应用程序后。请参阅下面的错误。

TypeError: Cannot read property 'toString' of undefined
(anonymous function)
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/node_modules/@mysql/xdevapi/lib/Protocol/Util/systemAttributes.js:101
   98 | }
   99 | 
  100 | const clientAttributes = {
> 101 |   _pid: process.pid.toString(),
  102 |   _platform: platformName(),
  103 |   _os: osName(),
  104 |   _source_host: sourceHostName(),
View compiled
./node_modules/@mysql/xdevapi/lib/Protocol/Util/systemAttributes.js
http://localhost:3000/static/js/0.chunk.js:44169:30
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
▼ 2 stack frames were expanded.
(anonymous function)
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/node_modules/@mysql/xdevapi/lib/Protocol/Client.js:68
./node_modules/@mysql/xdevapi/lib/Protocol/Client.js
http://localhost:3000/static/js/0.chunk.js:22283:30
▲ 2 stack frames were expanded.
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
./node_modules/@mysql/xdevapi/lib/DevAPI/Session.js
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/node_modules/@mysql/xdevapi/lib/DevAPI/Session.js:32
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
./node_modules/@mysql/xdevapi/lib/DevAPI/ConnectionPool.js
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/node_modules/@mysql/xdevapi/lib/DevAPI/ConnectionPool.js:32
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
./node_modules/@mysql/xdevapi/lib/DevAPI/Client.js
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/node_modules/@mysql/xdevapi/lib/DevAPI/Client.js:32
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
./node_modules/@mysql/xdevapi/index.js
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/node_modules/@mysql/xdevapi/index.js:36
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
Module../src/App.js
http://localhost:3000/static/js/main.chunk.js:91:72
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
Module../src/index.js
http://localhost:3000/static/js/main.chunk.js:220:62
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
fn
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:150
  147 |         );
  148 |         hotCurrentParents = [];
  149 |     }
> 150 |     return __webpack_require__(request);
      | ^  151 | };
  152 | var ObjectFactory = function ObjectFactory(name) {
  153 |     return {
View compiled
0
http://localhost:3000/static/js/main.chunk.js:359:18
__webpack_require__
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:785
  782 | };
  783 | 
  784 | // Execute the module function
> 785 | modules[moduleId].call(module.exports, module, module.exports, hotCreateRequire(moduleId));
      | ^  786 | 
  787 | // Flag the module as loaded
  788 | module.l = true;
View compiled
checkDeferredModules
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:45
  42 |  }
  43 |  if(fulfilled) {
  44 |      deferredModules.splice(i--, 1);
> 45 |      result = __webpack_require__(__webpack_require__.s = deferredModule[0]);
     | ^  46 |  }
  47 | }
  48 | 
View compiled
Array.webpackJsonpCallback [as push]
C:/Users/brian/OneDrive/Desktop/nms-appV4/nms-app/webpack/bootstrap:32
  29 |  deferredModules.push.apply(deferredModules, executeModules || []);
  30 | 
  31 |  // run deferred modules when all chunks ready
> 32 |  return checkDeferredModules();
     | ^  33 | };
  34 | function checkDeferredModules() {
  35 |  var result;
View compiled
(anonymous function)
http://localhost:3000/static/js/main.chunk.js:1:67
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Answer 1

这里没有提供太多信息，但根据您的错误:

process.pid 未定义。你必须弄清楚为什么这是未定义的。还有类似的问题:

Node console.log(process.pid) prints undefined