wangEditor Java富文本的图片上传

阳光穿透心脏的1/2处 2023-06-17 07:57 20阅读 0赞

上一篇 wangEditor的配置：https://blog.csdn.net/qq\_35349982/article/details/103288508

## 这里主要讲 java后台 ##

我这里用的是七牛云

## Controller层 ##

package com.xianbaovip.project.Controller;
    import cn.hutool.core.lang.ObjectId;
    import cn.hutool.json.JSONObject;
    import cn.hutool.json.JSONUtil;
    import com.xianbaovip.project.Modle.dto.ImgResultDto;
    import com.xianbaovip.project.Server.UploadImg.UploadImgService;
    import org.springframework.beans.factory.annotation.Autowired;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    import org.springframework.web.multipart.MultipartFile;
    
    @RestController
    public class UploadImgCrotroller { 
    
        @Autowired
        private UploadImgService uploadImgService;
        
        @RequestMapping("/uploadImg")
        public String updata(@RequestParam(name="file") MultipartFile file) throws Exception { 
        
        //首先判断是不是空的文件
            if (!file.isEmpty()) { 
    // //对文文件的全名进行截取然后在后缀名进行删选。
    // int begin = file.getOriginalFilename().indexOf(".");
    // int last = file.getOriginalFilename().length();
    // String suffix = file.getOriginalFilename().substring(begin, last);
    //
    // //读取文件的后缀名字
    // String fileName = imgId+suffix;
                //生成图片的唯一id
                String imgId = ObjectId.next();
                ImgResultDto imgResultDto = uploadImgService.uploadImage(imgId, file);
                String jsonStr= JSONUtil.toJsonStr(imgResultDto);
                return jsonStr;
            }else{ 
                JSONObject json1 = JSONUtil.createObj();
                json1.put("code", 300);
                json1.put("msg", "图片上传错误");
                String jsonStr= JSONUtil.toJsonStr(json1);
                return jsonStr;
            }
        }
    }

## Server层 ##

package com.xianbaovip.project.Server.UploadImg;
    
    import cn.hutool.core.util.StrUtil;
    import com.xianbaovip.project.Common.constant;
    import com.xianbaovip.project.Modle.dto.ImgResultDto;
    import com.xianbaovip.project.Utils.UpdataImgUtils;
    
    import org.apache.catalina.User;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.context.annotation.PropertySource;
    import org.springframework.stereotype.Service;
    import org.springframework.web.multipart.MultipartFile;
    
    import java.io.IOException;
    import java.util.ArrayList;
    import java.util.List;
    
    @Service
    @PropertySource("classpath:common.properties")
    public class UploadImgService { 
    
        @Value("${imgServer}")
        private String imgServer;
    
        public ImgResultDto uploadImage(String imgId,MultipartFile file) throws IOException { 
    
            String putRetKey = new UpdataImgUtils().UpdataImg(imgId, file.getBytes());
            String[] urlData = new String[1];
    
            ImgResultDto imgResultDto = new ImgResultDto();
            if(!StrUtil.hasBlank(putRetKey)){ 
                //设置返回值的类
                urlData[0] =imgServer+imgId;
                imgResultDto.setErrno(constant.imgErrorStart);//设置状态码
                imgResultDto.setData(urlData);
            }else{ 
                imgResultDto.setErrno(constant.imgErrorStart1);//设置状态码
            }
    
            return imgResultDto;
        }
    }

## 工具类 ##

package com.xianbaovip.project.Utils;
    
    import com.google.gson.Gson;
    import com.qiniu.common.QiniuException;
    import com.qiniu.http.Response;
    import com.qiniu.storage.Configuration;
    import com.qiniu.storage.Region;
    import com.qiniu.storage.UploadManager;
    import com.qiniu.storage.model.DefaultPutRet;
    import com.qiniu.util.Auth;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.context.annotation.PropertySource;
    
    import java.io.ByteArrayInputStream;
    import java.io.UnsupportedEncodingException;
    
    
    public  class UpdataImgUtils { 
    
    
        private static final String img_Ak = "自行填写";
        private static final String img_Sk = "自行填写";
        private static final String img_Bucket = "自行填写";
        private static final String img_Url = "自行填写";
    
    
        public  String UpdataImg(String imgName, byte[] uploadBytes ){ 
    
            String putRetKey = "";
            //构造一个带指定Region对象的配置类
            Configuration cfg = new Configuration(Region.region1());
            //...其他参数参考类注释
            UploadManager uploadManager = new UploadManager(cfg);
            //...生成上传凭证，然后准备上传
            String accessKey = img_Ak;
            String secretKey = img_Sk;
            String bucket = img_Bucket;
            //如果是Windows情况下，格式是 E:\ss.jpg
            //String localFilePath = "E:\\ss.jpg";
            //默认不指定key的情况下，以文件内容的hash值作为文件名
            //String key = null;
            //byte[] uploadBytes = "hello qiniu cloud".getBytes("utf-8");
            ByteArrayInputStream byteInputStream=new ByteArrayInputStream(uploadBytes);
            Auth auth = Auth.create(accessKey, secretKey);
            String upToken = auth.uploadToken(bucket,imgName);
            try { 
                Response response = uploadManager.put(byteInputStream,imgName,upToken,null, null);
                //解析上传成功的结果
                DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
                putRetKey = putRet.key;
    
                System.out.println(putRet);
                System.out.println(putRet.key);
                System.out.println(putRet.hash);
            } catch (QiniuException ex) { 
                Response r = ex.response;
                System.err.println(r.toString());
    
                try { 
                    System.err.println(r.bodyString());
                } catch (QiniuException ex2) { 
                    //ignore
                }
            }
    
            return putRetKey;
        }
    }