请先阅读：http://help.apple.com/deployment/ios/#/apda0e3426d7
操作系统：osx yosemite 10.10.5 (14F1509)
xcode：Version 7.2 (7C68)
1.Product-- >Archive,如果成功则会弹出Organizer--Archives界面，选择Export
2.选择“企业部署方式”
3.选择相应的账号
4.选择“所有设备”
5.勾选“生成plist文件”
通过无线方式安装需要用到plist文件，所以必须选择；如果通过iTunes方式安装则不需要。
点击“Learn More”可以看到apple对“以无线方式安装企业内部应用”的详细解释：http://help.apple.com/deployment/ios/#/apda0e3426d7
6.上一步勾选了“生成plist文件”，所以此时需要填写相关地址；若未勾选，则不会出现次界面。注意：必须是https的。
7.点击"Export"即可完成导出。
8.用文本编辑器打开“manifest.plist”，可以看到刚才填写的信息。
apple官网给出的manifest.plist示例内容：
1 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> 2 <plist version="1.0"> 3 <dict> 4 <!-- array of downloads.--> 5 <key>items</key> 6 <array> 7 <dict> 8 <!-- an array of assets to download --> 9 <key>assets</key> 10 <array> 11 <!-- software-package: the ipa to install.--> 12 <dict> 13 <!-- required. the asset kind.--> 14 <key>kind</key> 15 <string>software-package</string> 16 <!-- optional. md5 every n bytes. will restart a chunk if md5 fails.--> 17 <key>md5-size</key> 18 <integer>10485760</integer> 19 <!-- optional. array of md5 hashes for each "md5-size" sized chunk.--> 20 <key>md5s</key> 21 <array> 22 <string>41fa64bb7a7cae5a46bfb45821ac8bba</string> 23 <string>51fa64bb7a7cae5a46bfb45821ac8bba</string> 24 </array> 25 <!-- required. the URL of the file to download.--> 26 <key>url</key> 27 <string>https://www.example.com/apps/foo.ipa</string> 28 </dict> 29 <!-- display-image: the icon to display during download.--> 30 <dict> 31 <key>kind</key> 32 <string>display-image</string> 33 <!-- optional. indicates if icon needs shine effect applied.--> 34 <key>needs-shine</key> 35 <true/> 36 <key>url</key> 37 <string>https://www.example.com/image.57x57.png</string> 38 </dict> 39 <!-- full-size-image: the large 512x512 icon used by iTunes.--> 40 <dict> 41 <key>kind</key> 42 <string>full-size-image</string> 43 <!-- optional. one md5 hash for the entire file.--> 44 <key>md5</key> 45 <string>61fa64bb7a7cae5a46bfb45821ac8bba</string> 46 <key>needs-shine</key> 47 <true/> 48 <key>url</key><string>https://www.example.com/image.512x512.jpg</string> 49 </dict> 50 </array> 51 <key>metadata</key> 52 <dict> 53 <!-- required --> 54 <key>bundle-identifier</key> 55 <string>com.example.fooapp</string> 56 <!-- optional (software only) --> 57 <key>bundle-version</key> 58 <string>1.0</string> 59 <!-- required. the download kind.--> 60 <key>kind</key> 61 <string>software</string> 62 <!-- optional. displayed during download; typically company name --> 63 <key>subtitle</key> 64 <string>Apple</string> 65 <!-- required. the title to display during the download.--> 66 <key>title</key> 67 <string>Example Corporate App</string> 68 </dict> 69 </dict> 70 </array> 71 </dict> 72 </plist>
9.编写html文件，内容如下：
<body>
<a href="itms-services://?action=download-manifest&url=https://git.oschina.net/xxxxxx/raw/master/1.5/manifest.plist">Install App</a>
</body>
10.html文件放到web服务器上面，用户通过扫二维码的方式访问html页面，然后点击“Install App”安装应用。
web服务器不强制https，https和http均可。
关于用户如何安装app和信任app请参见：
http://www.cnblogs.com/pengyan5945/p/5218477.html