2中思路，一种是转换后显示，比如vectordraw，将dwg转换成vds格式，再在web中显示，支持图层啊之类。还有CADViewer JS是转成SVG，pdf等格式，然后用web浏览……其实转换格式也是一个办法，用golang在后端，当有请求的时候，调用转换程序AutoXChange进行dwg到pdf的转换。如下列代码，缺点有3个，一个是万一后端转换不成功，等待很久，还要退出这个进程，另一个缺点是，autoxchange虽然支持字体路径，但是似乎不起作用，还是无法显示中文，最后一个当然是需要购买啦，否则有水印。
package main import ( "fmt" "os/exec" "time" ) func main() { iname := "Office.dwg" oname := "office.svg" // fontpath := "\\Fonts" "-FP", fontpath, arg := []string{"-i", iname, "-o", oname, "-DF", "arial", "-f", "svg", "-text", "-v=5"} //ax2017 -i office.dwg -o office.pdf -f pdf -text -v=5 cmd := exec.Command("ax2019.exe", arg...) //记录开始时间 start := time.Now() err := cmd.Start() if err != nil { // fmt.Println(err) fmt.Printf("err: %v", err) } err = cmd.Wait() //Wait等待command退出，他必须和Start一起使用，如果命令能够顺利执行完并顺利退出则返回nil，否则的话便会返回error，其中Wait会是放掉所有与cmd命令相关的资源 // buf, err := cmd.Output() //运行命令并返回其标准输出 if err != nil { fmt.Printf("err: %v", err) } //记录结束时间差 elapsed := time.Since(start) fmt.Printf("elapsed: %s\n", elapsed) }另一个思路是用控件显示，比如DWGViewX，autovue，mxdraw，后2者没试验出来。dwgviewx只支持IE浏览器，有**版，去除了水印，但是客户端用ie访问的时候，需要下载activity控件，并安装一下，它只支持中文的宋体啊，黑体啊，之类，不支持那些单线字体。
<!-- <object id="1" visible="true" classid="clsid:B6FCC215-D303-11D1-BC6C-0000C078797F" type="application/x-oleobject" width="800" height="600"> --> <!-- <param name="SRC" value="//127.0.0.1/static/img/test.dwg"></object> --> <HTML> <HEAD> <title>DWGViewX Demo-DWG Viewer ActiveX Control</title> <LINK REL="stylesheet" TYPE="text/css" HREF="help/ie4.css"/> </HEAD> <script> function ZoomIn() { DWGViewX.ZoomIn(); } function ZoomOut() { DWGViewX.ZoomOut(); } function ZoomAll() { DWGViewX.ZoomAll(); } function HideToolbar() { DWGViewX.ShowToobar = !DWGViewX.ShowToobar } function Pan() { DWGViewX.PanByMouse(); } function ZoomWindow() { DWGViewX.ZoomRectByMouse(); } function HideLayoutBar() { DWGViewX.ShowLayoutBar = !DWGViewX.ShowLayoutBar; } function Background() { DWGViewX.Background = DWGViewX.Background ==0? 7:0 } function Print() { DWGViewX.Print(); } </script> <BODY > <a href="javascript:ZoomIn()">Zoom In</a> | <a href="javascript:ZoomOut()">Zoom Out</a> | <a href="javascript:ZoomAll()">Zoom All</a> | <a href="javascript:ZoomWindow()">Zoom Window</a>| <a href="javascript:Pan()">Pan</a>| <a href="javascript:HideToolbar()">Show/Hide Toolbar</a> | <a href="javascript:HideLayoutBar()">Show/Hide LayoutBar</a> |<a href="javascript:Print()">Print</a> |<a href="javascript:Background()">Background</a> <table border="0" width="100%"> <tr> <td width="50%"> <OBJECT id=DWGViewX classid="clsid:AC53EFE4-94A7-47E6-BBFC-E9B9CF322299" codebase="http://www.autodwg.com/dwg-viewer/dwgviewx.cab" width="700" height="520"> <param name="_Version" value="65536"> <param name="_ExtentX" value="18521"> <param name="_ExtentY" value="13758"> <param name="_StockProps" value="0"> <param name="DrawingFile" value="http://127.0.0.1/static/img/05.dwg"> <param name="ShowToobar" value="-1"> <param name="ShowLayoutBar" value="1"> </OBJECT> </td> <td width="50%" valign="top"> <table border="0" width="100%"> <tr> <td width="100%" style="border-bottom:1px dashed"> <img border="0" src="Help/tips.gif" width="12" height="11"> If the control can't display correctly, please download and install the control first. <p align="right"><a href="http://www.autodwg.com/download/dwgviewx.exe">Download DWGViewX</a></td> </tr> <tr> <td width="100%"></td> </tr> <tr> <td width="100%"> <p align="right"><a href="DWGViewX.html">Help for Developers..</a>.</td> </tr> <tr> <td width="100%"></td> </tr> </table> </td> </tr> </table> </BODY> </HTML>