angular应用部署在iis上，刷新出现404

解决方案：

1. 安装 iis URL Rewrite 模块，并在 src 目录下增加web.config，配置urlrewrite如下：

<configuration>
<system.webServer>
  <rewrite>
    <rules>
      <rule name="Angular Routes" stopProcessing="true">
        <match url=".*" />
	  <conditions logicalGrouping="MatchAll">
	    <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
	    <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
	  </conditions>
	  <action type="Rewrite" url="/" />
      </rule>
    </rules>
  </rewrite>
</system.webServer>
</configuration>

2. 配置 web.config 自动打包

修改 angular-cli.json文件(angular2-5)

  "apps": [
        {
	   "root": “src”,"ourDir": “dist”,"assets": [
	      “assets”,“favicon.ico”,“web.config”
          ],

修改 angular.json 文件(angular6)

        “build”: {
	   "options”: {
	     . . . 
	     "assets": [
	        “src/assets”,“src/favicon.ico”,“src/web.config”
             ],

Reference

• https://github.com/WeihanLi/TechNotes/issues/16
• https://stackoverflow.com/questions/43785928/angular-2-hosted-on-iis-http-error-404
• https://blogs.msdn.microsoft.com/premier_developer/2017/06/14/tips-for-running-an-angular-app-in-iis/

（编辑：李大同）

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