浏览器中的 Node-oracledb 错误 "Module name has not been loaded for context yet"

Question

我正在尝试使用 node-oracledb 从 oracle 数据库加载数据，但我收到此错误：

Error: Module name "select1" has not been loaded yet for context: _. Use require([])

我确实阅读了文档 here，但我想不出解决方案。为什么会给我这样的错误，为什么要感谢您的帮助。

select1.js :

   const oracledb = require('oracledb');
   const dbConfig = require('./dbconfig.js');
   const demoSetup = require('./demosetup.js');
   oracledb.outFormat = oracledb.OUT_FORMAT_OBJECT;
   async function run() {
   let connection;

   try {
   // Get a non-pooled connection

  connection = await oracledb.getConnection(dbConfig);

  await demoSetup.setupBf(connection);  // create the demo table

  var query = await connection.execute(
    // The statement to execute
    `SELECT * From pilote`,

    // The "bind value" 3 for the bind variable ":idbv"
    [],

    // Options argument.  Since the query only returns one
    // row, we can optimize memory usage by reducing the default
    // maxRows value.  For the complete list of other options see
    // the documentation.
    {
      maxRows: 100
      //, outFormat: oracledb.OUT_FORMAT_OBJECT  // query result format
      //, extendedMetaData: true                 // get extra metadata
      //, fetchArraySize: 100                    // internal buffer allocation size for tuning
    });
    //console.log(query.rows)

} catch (err) {
  console.error(err);
} finally {
  if (connection) {
    try {
      // Connections should always be released when not needed
      //await connection.close();
    } catch (err) {
      console.error(err);
    }
  }
}
return query;
}
module.exports.run =  run;

test.js :

(async() =>{
var result = require('./select1').run()
var rs;
rs = (await result).rows
if(rs !== undefined)
{
    document.getElementById('hdr').textContent = rs[0]
}
})()

page.html :

<body>
<h1 id="hdr">hello</h1>
<script src="https://requirejs.org/docs/release/2.3.5/minified/require.js"></script>
<script  src="test.js"></script>
</body>

Answer 1

node-oracledb 不会在浏览器中运行因为它有一个需要访问二进制共享库的二进制组件。标准 Node.js 应用程序设计具有 Node.js 作为接受网络调用的中间层应用程序服务器，例如REST，从浏览器和 returns 数据到该浏览器。有一些用法变体，例如作为使用 Electron 的独立应用程序。

如果这对您来说是全新的，请从示例开始 https://github.com/oracle/node-oracledb/blob/master/examples/webappawait.js and work up to https://jsao.io/2018/03/creating-a-rest-api-with-node-js-and-oracle-database/

浏览器中的 Node-oracledb 错误 "Module name has not been loaded for context yet"

Node-oracledb in browser error "Module name has not been loaded for context yet"

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