wangEditor Java富文本的圖片上傳

上一篇 wangEditor的配置：https://blog.csdn.net/qq_35349982/article/details/103288508

這裏主要講 java後臺

我這裏用的是七牛雲

Controller層

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 {
    
    //首先判斷是不是空的文件
        if (!file.isEmpty()) {
//            //對文文件的全名進行截取然後在後綴名進行刪選。
//            int begin = file.getOriginalFilename().indexOf(".");
//            int last = file.getOriginalFilename().length();
//            String suffix = file.getOriginalFilename().substring(begin, last);
//
//            //讀取文件的後綴名字
//            String fileName = imgId+suffix;
            //生成圖片的唯一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", "圖片上傳錯誤");
            String jsonStr= JSONUtil.toJsonStr(json1);
            return jsonStr;
        }
    }
}

Server層

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)){
            //設置返回值的類
            urlData[0] =imgServer+imgId;
            imgResultDto.setErrno(constant.imgErrorStart);//設置狀態碼
            imgResultDto.setData(urlData);
        }else{
            imgResultDto.setErrno(constant.imgErrorStart1);//設置狀態碼
        }

        return imgResultDto;
    }
}

工具類

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 = "自行填寫";
    private static final String img_Sk = "自行填寫";
    private static final String img_Bucket = "自行填寫";
    private static final String img_Url = "自行填寫";


    public  String UpdataImg(String imgName, byte[] uploadBytes ){

        String putRetKey = "";
        //構造一個帶指定Region對象的配置類
        Configuration cfg = new Configuration(Region.region1());
        //...其他參數參考類註釋
        UploadManager uploadManager = new UploadManager(cfg);
        //...生成上傳憑證，然後準備上傳
        String accessKey = img_Ak;
        String secretKey = img_Sk;
        String bucket = img_Bucket;
        //如果是Windows情況下，格式是 E:\ss.jpg
        //String localFilePath = "E:\\ss.jpg";
        //默認不指定key的情況下，以文件內容的hash值作爲文件名
        //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);
            //解析上傳成功的結果
            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;
    }
}