springboot + editor achieve picture upload

Wherein
private static final String UPLOADED_FOLDER = "/usr/img/blog/";
Controller layer methods

 @RequestMapping(value="/uploadfile",method=RequestMethod.POST)
    public void hello(HttpServletRequest request,HttpServletResponse response,@RequestParam(value = "editormd-image-file", required = false) MultipartFile attach){
        try {
            request.setCharacterEncoding( "utf-8" );
            response.setHeader( "Content-Type" , "text/html" );
            String rootPath = request.getSession().getServletContext().getRealPath("/img/blog/");
            String physicPath=UPLOADED_FOLDER;

            /**
             * 文件路径不存在则需要创建文件路径
             */
            File filePath=new File(rootPath);
            File filePath2=new File(physicPath);
            if(!filePath2.exists()){
                filePath2.mkdirs();
            }
            if(!filePath.exists()){
                filePath.mkdirs();
            }

            //最终文件名
            File realFile=new File(rootPath+File.separator+attach.getOriginalFilename());
            File realFile2=new File(physicPath+File.separator+attach.getOriginalFilename());
            FileUtils.copyInputStreamToFile(attach.getInputStream(), realFile);
            FileUtils.copyInputStreamToFile(attach.getInputStream(), realFile2);

            //下面response返回的json格式是editor.md所限制的，规范输出就OK
            response.getWriter().write( "{\"success\": 1, \"message\":\"上传成功\",\"url\":\"/img/blog/" + attach.getOriginalFilename() + "\"}" );
        } catch (Exception e) {
            try {
                response.getWriter().write( "{\"success\":0}" );
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }

Then configure the look config in the conversion path

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;


@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter {

   @Override
   public void addResourceHandlers(ResourceHandlerRegistry registry) {
       registry.addResourceHandler("/img/blog/**").addResourceLocations("file:/usr/img/blog/");       
   }

}

Itself is not configured address translation, image upload is stored in a temporary folder inside the tomcat, when the server has restarted, you can not access previously uploaded pictures. So here I come to save the picture to the local, to make a virtual address mapping.


Here, the address is the address of the virtual image map of tomcat server, but we configured address mapping, so that the server looking for / img / blog document / case will go to find the physical address we configured the.