nbcio-boot移植到若依ruoyi-nbcio平台里一formdesigner部分（三）

宁波阿成2023-09-21 11:33

因为这个版本的若依plus不支持本地文件上传，所以需要增加这些本地上传文件的后端代码

和前端代码修改。

1、后端部分

先配置跳过测试吧，平时编译也不需要这个

java 复制代码 
<!--添加配置跳过测试-->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<version>2.22.2</version>
				<configuration>
					<skipTests>true</skipTests>
				</configuration>
			</plugin>
			<!--添加配置跳过测试-->

增加一个公共上传接口

java 复制代码 
package com.ruoyi.web.controller.common;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.HashMap;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;

/**
 * 通用请求处理
 * 
 * @author ruoyi
 */
@RestController
@RequestMapping("/common")
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    private static final String FILE_DELIMETER = ",";

    /**
     * 通用下载请求
     * 
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.checkAllowDownload(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload")
    @ResponseBody
    public R<Map<String, String>> uploadFile(MultipartFile file) throws Exception
    {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            Map<String, String> map = new HashMap<>(2);
            map.put("url", url);
            map.put("fileName", fileName);
            map.put("newFileName", FileUtils.getName(fileName));
            map.put("originalFilename", file.getOriginalFilename());
            return R.ok(map);
        }
        catch (Exception e)
        {
            return R.fail(e.getMessage());
        }
    }

    /**
     * 通用上传请求（多个）
     */
    @PostMapping("/uploads")
    @ResponseBody
    public R<Map<String, String>>  uploadFiles(List<MultipartFile> files) throws Exception
    {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            List<String> urls = new ArrayList<String>();
            List<String> fileNames = new ArrayList<String>();
            List<String> newFileNames = new ArrayList<String>();
            List<String> originalFilenames = new ArrayList<String>();
            for (MultipartFile file : files)
            {
                // 上传并返回新文件名称
                String fileName = FileUploadUtils.upload(filePath, file);
                String url = serverConfig.getUrl() + fileName;
                urls.add(url);
                fileNames.add(fileName);
                newFileNames.add(FileUtils.getName(fileName));
                originalFilenames.add(file.getOriginalFilename());
            }
            Map<String, String> map = new HashMap<>(2);
            map.put("urls", StringUtils.join(urls, FILE_DELIMETER));
            map.put("fileNames", StringUtils.join(fileNames, FILE_DELIMETER));
            map.put("newFileNames", StringUtils.join(newFileNames, FILE_DELIMETER));
            map.put("originalFilenames", StringUtils.join(originalFilenames, FILE_DELIMETER));
            return R.ok(map);
        }
        catch (Exception e)
        {
            return R.fail(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        try
        {
            if (!FileUtils.checkAllowDownload(resource))
            {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }
}

增加上传的全局参数

java 复制代码 
  # 本地：local\Minio：minio\阿里云：alioss
  uploadtype: local
  #文件上传根目录 设置
  profile: /home/nbcio

增加文件工具类

java 复制代码 
package com.ruoyi.common.utils.file;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.ArrayUtils;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.uuid.IdUtils;
import org.apache.commons.io.FilenameUtils;

/**
 * 文件处理工具类
 * 
 * @author ruoyi
 */
public class FileUtils
{
    public static String FILENAME_PATTERN = "[a-zA-Z0-9_\\-\\|\\.\\u4e00-\\u9fa5]+";

    /**
     * 输出指定文件的byte数组
     * 
     * @param filePath 文件路径
     * @param os 输出流
     * @return
     */
    public static void writeBytes(String filePath, OutputStream os) throws IOException
    {
        FileInputStream fis = null;
        try
        {
            File file = new File(filePath);
            if (!file.exists())
            {
                throw new FileNotFoundException(filePath);
            }
            fis = new FileInputStream(file);
            byte[] b = new byte[1024];
            int length;
            while ((length = fis.read(b)) > 0)
            {
                os.write(b, 0, length);
            }
        }
        catch (IOException e)
        {
            throw e;
        }
        finally
        {
            IOUtils.close(os);
            IOUtils.close(fis);
        }
    }

    /**
     * 写数据到文件中
     *
     * @param data 数据
     * @return 目标文件
     * @throws IOException IO异常
     */
    public static String writeImportBytes(byte[] data) throws IOException
    {
        return writeBytes(data, RuoYiConfig.getImportPath());
    }

    /**
     * 写数据到文件中
     *
     * @param data 数据
     * @param uploadDir 目标文件
     * @return 目标文件
     * @throws IOException IO异常
     */
    public static String writeBytes(byte[] data, String uploadDir) throws IOException
    {
        FileOutputStream fos = null;
        String pathName = "";
        try
        {
            String extension = getFileExtendName(data);
            pathName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
            File file = FileUploadUtils.getAbsoluteFile(uploadDir, pathName);
            fos = new FileOutputStream(file);
            fos.write(data);
        }
        finally
        {
            IOUtils.close(fos);
        }
        return FileUploadUtils.getPathFileName(uploadDir, pathName);
    }

    /**
     * 删除文件
     * 
     * @param filePath 文件
     * @return
     */
    public static boolean deleteFile(String filePath)
    {
        boolean flag = false;
        File file = new File(filePath);
        // 路径为文件且不为空则进行删除
        if (file.isFile() && file.exists())
        {
            flag = file.delete();
        }
        return flag;
    }

    /**
     * 文件名称验证
     * 
     * @param filename 文件名称
     * @return true 正常 false 非法
     */
    public static boolean isValidFilename(String filename)
    {
        return filename.matches(FILENAME_PATTERN);
    }

    /**
     * 检查文件是否可下载
     * 
     * @param resource 需要下载的文件
     * @return true 正常 false 非法
     */
    public static boolean checkAllowDownload(String resource)
    {
        // 禁止目录上跳级别
        if (StringUtils.contains(resource, ".."))
        {
            return false;
        }

        // 检查允许下载的文件规则
        if (ArrayUtils.contains(MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION, FileTypeUtils.getFileType(resource)))
        {
            return true;
        }

        // 不在允许下载的文件规则
        return false;
    }

    /**
     * 下载文件名重新编码
     * 
     * @param request 请求对象
     * @param fileName 文件名
     * @return 编码后的文件名
     */
    public static String setFileDownloadHeader(HttpServletRequest request, String fileName) throws UnsupportedEncodingException
    {
        final String agent = request.getHeader("USER-AGENT");
        String filename = fileName;
        if (agent.contains("MSIE"))
        {
            // IE浏览器
            filename = URLEncoder.encode(filename, "utf-8");
            filename = filename.replace("+", " ");
        }
        else if (agent.contains("Firefox"))
        {
            // 火狐浏览器
            filename = new String(fileName.getBytes(), "ISO8859-1");
        }
        else if (agent.contains("Chrome"))
        {
            // google浏览器
            filename = URLEncoder.encode(filename, "utf-8");
        }
        else
        {
            // 其它浏览器
            filename = URLEncoder.encode(filename, "utf-8");
        }
        return filename;
    }

    /**
     * 下载文件名重新编码
     *
     * @param response 响应对象
     * @param realFileName 真实文件名
     */
    public static void setAttachmentResponseHeader(HttpServletResponse response, String realFileName) throws UnsupportedEncodingException
    {
        String percentEncodedFileName = percentEncode(realFileName);

        StringBuilder contentDispositionValue = new StringBuilder();
        contentDispositionValue.append("attachment; filename=")
                .append(percentEncodedFileName)
                .append(";")
                .append("filename*=")
                .append("utf-8''")
                .append(percentEncodedFileName);

        response.addHeader("Access-Control-Expose-Headers", "Content-Disposition,download-filename");
        response.setHeader("Content-disposition", contentDispositionValue.toString());
        response.setHeader("download-filename", percentEncodedFileName);
    }

    /**
     * 百分号编码工具方法
     *
     * @param s 需要百分号编码的字符串
     * @return 百分号编码后的字符串
     */
    public static String percentEncode(String s) throws UnsupportedEncodingException
    {
        String encode = URLEncoder.encode(s, StandardCharsets.UTF_8.toString());
        return encode.replaceAll("\\+", "%20");
    }

    /**
     * 获取图像后缀
     * 
     * @param photoByte 图像数据
     * @return 后缀名
     */
    public static String getFileExtendName(byte[] photoByte)
    {
        String strFileExtendName = "jpg";
        if ((photoByte[0] == 71) && (photoByte[1] == 73) && (photoByte[2] == 70) && (photoByte[3] == 56)
                && ((photoByte[4] == 55) || (photoByte[4] == 57)) && (photoByte[5] == 97))
        {
            strFileExtendName = "gif";
        }
        else if ((photoByte[6] == 74) && (photoByte[7] == 70) && (photoByte[8] == 73) && (photoByte[9] == 70))
        {
            strFileExtendName = "jpg";
        }
        else if ((photoByte[0] == 66) && (photoByte[1] == 77))
        {
            strFileExtendName = "bmp";
        }
        else if ((photoByte[1] == 80) && (photoByte[2] == 78) && (photoByte[3] == 71))
        {
            strFileExtendName = "png";
        }
        return strFileExtendName;
    }

    /**
     * 获取文件名称 /profile/upload/2022/04/16/ruoyi.png -- ruoyi.png
     * 
     * @param fileName 路径名称
     * @return 没有文件路径的名称
     */
    public static String getName(String fileName)
    {
        if (fileName == null)
        {
            return null;
        }
        int lastUnixPos = fileName.lastIndexOf('/');
        int lastWindowsPos = fileName.lastIndexOf('\\');
        int index = Math.max(lastUnixPos, lastWindowsPos);
        return fileName.substring(index + 1);
    }

    /**
     * 获取不带后缀文件名称 /profile/upload/2022/04/16/ruoyi.png -- ruoyi
     * 
     * @param fileName 路径名称
     * @return 没有文件路径和后缀的名称
     */
    public static String getNameNotSuffix(String fileName)
    {
        if (fileName == null)
        {
            return null;
        }
        String baseName = FilenameUtils.getBaseName(fileName);
        return baseName;
    }
}

2、前端方面

previewRender.js修改如下：

javascript 复制代码 
import { isAttr,jsonClone } from '../utils';
import childrenItem from './slot/index';
import {remoteData} from './mixin';
import { getToken } from "@/utils/auth";

//先修改在这里,后续需要优化
function vModel(self, dataObject) {
  dataObject.props.value = self.value;
  dataObject.on.input = val => {
    self.$emit('input', val)
  }
  //判断是否为上传组件
  if(self.conf.compType === 'upload'){
    //for token add by nbacheng 2022-09-07
    //dataObject.attrs['headers'] = {"Authorization":"Bearer " + getToken()};
    /**
     * 此处增加自定义的token,如果不能满足要求，可以重写此处代码
     */
    const token = getToken();
    dataObject.attrs['headers'] = {"Authorization":"Bearer " + token};
    console.log("dataObject.props.value",dataObject.props.value)
    if(dataObject.props.value!==undefined && dataObject.props.value !==''){
      const filevalue = JSON.parse(dataObject.props.value);
      dataObject.props['file-list'] = filevalue;
    }
    dataObject.attrs['before-upload'] = file=>{
      //非限定后缀不允许上传
      console.log("before-upload file",file);
      const fileName = file.name;
      console.log("before-upload fileName",fileName);
      const suffixName = fileName.split('.').pop();

      if(!self.conf.accept.includes(suffixName)){
        self.$message.error('该后缀文件不允许上传');
        return false;
      }
      const fileSize = file.size;
      if(fileSize>dataObject.props.fileSize*1024*1024){
        self.$message.error('文件大小超出限制，请检查！');
        return false;
      }
    }

    //for get return file url add by nbacheng 2022-09-07
    dataObject.attrs['on-success'] = file=>{

        console.log("on-success file",file);
        var filename=file.data.fileName.substring(file.data.fileName.lastIndexOf('/')+1)  //获取文件名称
        let fileObj = {name: filename, url: file.data.fileName}
        console.log("dataObject=",dataObject);
        console.log("self.conf=",self.conf);
        let oldValue = [];
        if(dataObject.props.value) {
           oldValue = JSON.parse(dataObject.props.value);
        }else {
          oldValue = [];
        }
        if (oldValue) {
          oldValue.push(fileObj)
        } else {
          oldValue = [fileObj]
        }
        self.$emit('input',JSON.stringify(oldValue));
        console.log("on-success value",oldValue);
    }
    dataObject.attrs['on-remove'] = (file, fileList) => {
      console.log("on-remove file,fileList",file,fileList);
      let oldValue = JSON.parse(dataObject.props.value);
      console.log("on-remove oldValue",oldValue);
      //file 删除的文件
      //过滤掉删除的文件
      let newValue = oldValue.filter(item => item.name !== file.name)
      self.$emit('input',JSON.stringify(newValue));
      console.log("on-remove newValue",newValue);
    }

    dataObject.attrs['on-error'] = (file) => {
      console.log("on-error file",file);
    }

    dataObject.attrs['on-preview'] = (file) => {
      console.log("on-preview file",file);
      //download(file);
    }
    //for get return file url add by nbacheng 2022-09-07
  }
}

export default {
  render(h) {
    let dataObject = {
      attrs: {},
      props: {},
      on: {},
      style: {}
    }
    //远程获取数据
    this.getRemoteData();
    const confClone = jsonClone(this.conf);
    const children = childrenItem(h,confClone);

    Object.keys(confClone).forEach(key => {
      const val = confClone[key]
      if (dataObject[key]) {
        dataObject[key] = val
      } else if(key ==='width'){
        dataObject.style= 'width:'+val;
      } else if (!isAttr(key)) {
        dataObject.props[key] = val
      }else {
        if (key == 'classStyle' && val.length > 0){
          let style =""
          val.forEach(item =>{
            console.log(item)
            style+=item +" "
          })
          dataObject.attrs['class'] = style
        }else if (key == 'cssStyle'){
          dataObject.attrs['style'] = val
        }else if(key !== 'value'){
          dataObject.attrs[key] = val
        }
      }
    })
    /*调整赋值模式，规避cascader组件赋值props会出现覆盖预制参数的bug */
    vModel(this, dataObject);
    return h(confClone.ele, dataObject, children)
  },
  props: ['conf','value'],
  mixins:[remoteData]
}

3、效果图

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