Node.js path的参数.Join必须是字符串，但参数是路径

Node.js Arguments to path.join must be strings but arguments are a path

本文关键字：参数 字符串 路径 js path Join Node      更新时间：2023-09-26

我使用Node.js版本v0.10.36中的路径模块。它在我的笔记本电脑上的Node.js版本v0.10.30。我基本上是传递一个对象中包含的字符串，其中一个返回值来自Sequelize处理的函数，从MySQL数据库中获取。如果我把路径换掉。将函数连接到常规路径+'/'+文件，它可以正常工作。然而，由于某种原因路径。Join不断在程序中抛出错误。我添加了一些控制台。用原木来说明我的观点。错误来自以下几行:

console.log( this.recordingRow.get( 'id' ) );
console.log( config.path.audio );
var filepath = path.join( config.path.audio, this.recordingRow.get( 'id' ) );

但是这里是输出:

241
/home/sonar/sonar/files/audio
Unhandled rejection TypeError: Arguments to path.join must be strings
    at path.js:360:15                                                                                                                                                                                                                        
    at Array.filter (native)                                                                                                                                                                                                                 
    at Object.exports.join (path.js:358:36)                                                                                                                                                                                                  
    at Stream.startSonarData (/home/sonar/sonar/inc/streams/stream.js:148:22)                                                                                                                                                                
    at Object.<anonymous> (/home/sonar/sonar/inc/streams/stream.js:74:8)                                                                                                                                                                     
    at Object.tryCatcher (/home/sonar/sonar/node_modules/sequelize/node_modules/bluebird/js/main/util.js:24:31)                                                                                                                              
    at Promise._settlePromiseFromHandler (/home/sonar/sonar/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:452:31)                                                                                                          
    at Promise._settlePromiseAt (/home/sonar/sonar/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:530:18)                                                                                                                   
    at Promise._settlePromises (/home/sonar/sonar/node_modules/sequelize/node_modules/bluebird/js/main/promise.js:646:14)                                                                                                                    
    at Async._drainQueue (/home/sonar/sonar/node_modules/sequelize/node_modules/bluebird/js/main/async.js:177:16)                                                                                                                            
    at Async._drainQueues (/home/sonar/sonar/node_modules/sequelize/node_modules/bluebird/js/main/async.js:187:10)                                                                                                                           
    at Async.drainQueues (/home/sonar/sonar/node_modules/sequelize/node_modules/bluebird/js/main/async.js:15:14)                                                                                                                             
    at process._tickCallback (node.js:442:13)

这个错误很明显。其中一个参数不是字符串。第一个似乎是一个数字。只需先将其转换为字符串，例如通过String:

path.join(a, String(b));

如@Felix所述，您的第二个参数不是字符串而是数字。有两种方法可以将数字类型转换为String:-

  • 路径。加入(config.path。音频,~ ~ (this.recordingRow。get('id'));
  • 路径。加入(config.path。音频、字符串(this.recordingRow。get('id'));
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