微信小程序上传图片文件小程序+Java

我会带着你远行 2022-05-11 05:34 287阅读 0赞

## 小程序代码： ##

chooseImage(){
        wx.chooseImage({
          success: function (res) {
            var tempFilePaths = res.tempFilePaths
            wx.uploadFile({
              url: 'http://127.0.0.1:8080/xxxx', // 后台上传文件url 
              filePath: tempFilePaths[0],
              name: 'file',
              formData: {
                'user': 'test' //需要传入的其它参数给后台
              },
              success: function (res) {
                var data = res.data
                //do something
              },fail:function(err){
                console.log(err)
              }
            })
          }
        })
      }

## Java代码： ##

package com.core.controller;
    
    import com.core.entity.Massage;
    import net.sf.json.JSONObject;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.multipart.MultipartFile;
    import org.springframework.web.multipart.MultipartHttpServletRequest;
    import org.springframework.web.servlet.ModelAndView;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import java.io.*;
    
    /**
     * @ClassName WxUploadController
     * @Description 微信文件上传
     * @Author PengKe
     * @Wx VIP694046220
     * @Date 2018/9/19 0019 20:45
     * @Version 1.0
     **/
    @Controller
    @RequestMapping(value = "wxUpload")
    public class WxUploadController {
    
        private static final Logger logger = LoggerFactory.getLogger(UploadController.class);
    
        @RequestMapping("/upload")
            public ModelAndView uploadImage(HttpServletRequest request, HttpServletResponse response) throws IOException {
                System.out.println("文件上传!");
    
                MultipartHttpServletRequest req =(MultipartHttpServletRequest)request;
                PrintWriter out = response.getWriter();
            Massage massage = new Massage();
                MultipartFile multipartFile =  req.getFile("file");
                String uId = request.getParameter("uId");//这就是获取微信传过来的其它参数
                String imgType = request.getParameter("imgType");
                System.out.println(uId+"---"+imgType);
    
                String realPath = request.getRealPath("/upload") + "/";
                try {
                    File dir = new File(realPath);
                    if (!dir.exists()) {
                        dir.mkdir();
                    }
                    File file  =  new File(realPath,uId+"_"+imgType+".jpg");// 文件保存位置和文件名
                    multipartFile.transferTo(file);
                    massage.setCode(1);
                    massage.setDatas("");
                    massage.setMsg("上传成功");
                } catch (IOException e) {
                    massage.setCode(0);
                    massage.setDatas(e);
                    massage.setMsg("上传失败");
                    e.printStackTrace();
                } catch (IllegalStateException e) {
                    massage.setCode(0);
                    massage.setDatas(e);
                    massage.setMsg("上传失败!");
                    e.printStackTrace();
                }
            JSONObject jsonObject = JSONObject.fromObject(massage);
            out.print(jsonObject.toString());
            out.close();
                return null;
            }
    
    }

## 可以了~ ##