我尝试了以下命令，mysql模块没有添加到node_module文件夹中，而且使用mysql的代码抛出错误。
Your environment has been set up for using Node.js 0.8.3 (ia32) and NPM
C:\Users\Work>npm install mysql
npm http GET https://registry.npmjs.org/mysql
npm http 304 https://registry.npmjs.org/mysql
npm http GET https://registry.npmjs.org/hashish/0.0.4
npm http 304 https://registry.npmjs.org/hashish/0.0.4
npm http GET https://registry.npmjs.org/traverse
npm http 304 https://registry.npmjs.org/traverse
<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="3855414b495478081601160e" rel="noreferrer noopener nofollow">[email protected]</a> node_modules\mysql
└── <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d3bbb2a0bbbaa0bb93e3fde3fde7" rel="noreferrer noopener nofollow">[email protected]</a> (<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="abdfd9caddced9d8ceeb9b859d8598" rel="noreferrer noopener nofollow">[email protected]</a>)
C:\Users\Work>npm install <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="25485c56544965170b150b15084449554d4416" rel="noreferrer noopener nofollow">[email protected]</a>
npm http GET https://registry.npmjs.org/mysql/2.0.0-alpha3
npm http 304 https://registry.npmjs.org/mysql/2.0.0-alpha3
npm http GET https://registry.npmjs.org/require-all/0.0.3
npm http 304 https://registry.npmjs.org/require-all/0.0.3
<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="563b2f25273a1664786678667b373a263e3765" rel="noreferrer noopener nofollow">[email protected]</a> node_modules\mysql
└── <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="6f1d0a1e1a061d0a420e03032f5f415f415c" rel="noreferrer noopener nofollow">[email protected]</a>
C:\Users\Work>node D:\nodejs\sqlwrite.js
module.js:340
throw err;
^
Error: Cannot find module 'mysql'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:362:17)
at require (module.js:378:17)
at Object.<anonymous> (D:\nodejs\sqlwrite.js:1:74)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.runMain (module.js:492:10)
C:\Users\Work>
我已经输入了 github 上显示的命令。
最佳答案
您应该将路径(安装 Node 模块的位置)添加到系统变量中。或者导航到 NodeJS 模块的默认系统路径并安装 NodeJS 模块。这是我的系统的路径:
C:\Users\[用户名]\AppData\Roaming\npm\node_modules
关于mysql - 无法在nodejs中使用npm安装mysql，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11611354/