ckeditor 上传图片解决跨域问题

时间 2019-11-18

标签 ckeditor 上传图片解决问题繁體版

原文原文链接

先后端分离ckeditor跨域问题处理

这个跨域问题很常见，特别是先后端分离的状况，IP地址不一样致使了页面跨域，具体缘由大可能是由于前端ifame问题javascript

分析

ckeditor插件里config.js须要配置html

config.filebrowserImageUploadUrl="http://127.0.0.1:8085/upload"

这个地址就是日后端请求的地址，会带一个CKEditorFuncNum参数到后台，当时接收到这个以后我是用了response又给写回去了前端

@PostMapping("/upload") public void ckeditor(@RequestParam("upload") MultipartFile filePath, HttpServletRequest request, HttpServletResponse response) throws IOException { String imageUrl = upload(filePath); String callback = request.getParameter("CKEditorFuncNum"); // 结合ckeditor功能 response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); out.println("<script type=\"text/javascript\">"); out.println("window.parent.CKEDITOR.tools.callFunction(" + callback + ",'" + imageUrl + "',''" + ")"); out.println("</script>"); out.flush(); out.close();

将文件上传后取得URL地址后，经过response将JS写回到了前端页面，这个时候老是会容易引发跨域java

解决方案

在前端index.html同级目录下新增一个页面，随便取名，我叫getimage.html后端

<!DOCTYPE html> <html> <head> <meta charset="UTF-8" /> <title></title> </head> <body> <script> function GetQueryString(name) { var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i"); var r = window.location.search.substr(1).match(reg); //获取url中"?"符后的字符串并正则匹配 var context = ""; if (r != null) context = r[2]; reg = null; r = null; return context == null || context == "" || context == "undefined" ? "" : context; } window.parent.CKEDITOR.tools.callFunction(GetQueryString("CKEditorFuncNum"),GetQueryString("ImageUrl"),GetQueryString("Message")); </script> </body> </html>

再修改一下后端的接口跨域

@PostMapping("/upload") public void ckeditor(@RequestParam("upload") MultipartFile filePath, HttpServletRequest request, HttpServletResponse response) throws IOException { String imageUrl = upload(filePath); String callback = request.getParameter("CKEditorFuncNum"); // 获取请求地址，拼接static目录下与index.html同级的getimage页面 String backUrl = request.getHeader("Origin") + "/getimage.html"; response.sendRedirect(backUrl+"?ImageUrl="+imageUrl+"&CKEditorFuncNum="+callback); }

结语

亲测这样可以解决页面跨域问题app