spring boot 图片上传 精简版

pom文件引入

<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version>
</dependency>

    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.0.1</version>
    </dependency>

package com.xyy.controller;
import com.xyy.commons.ServerResponse;
import com.xyy.server.FileService;
import com.xyy.util.MyUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;

import static com.xyy.server.impl.FileServiceImpl.NextInt;

/**

• 基础设置控制

• @author Administrator
  */
  @RequestMapping("api/file")
  @RestController
  public class FileUploadController {

  @Autowired
  private FileService fileService;

  /**

  • 上传图片 参数fileUpload 返回图片访问路径

  • @param request

  • @return
    */
    @PostMapping("fileUpload")
    public ServerResponse fileUpload2(HttpServletRequest request) {
    // 设置上下方文
    CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(
    request.getSession().getServletContext());
    //文件名
    String fileName = "";
    //获取tomcat项目路径
    String url = MyUtil.getTomcatUrl();

    // 检查form是否有enctype="multipart/form-data"
    if (multipartResolver.isMultipart(request)) {
    MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
    Iterator<String> iter = multiRequest.getFileNames();
    while (iter.hasNext()) {
    // 由CommonsMultipartFile继承而来,拥有上面的方法.
    MultipartFile file = multiRequest.getFile(iter.next());
    if (file != null) {
    //原文件名
    String type = file.getOriginalFilename();
    //获取文件类型
    type = type.substring(type.lastIndexOf("."), type.length());
    //重命名
    fileName = NextInt(10000, 99999) + System.currentTimeMillis() + type;
    //path 图片保存路径 保存到war包根目录 request.getContextPath() war包名
    String path = (new File(request.getServletContext().getRealPath("/")))
    .getParent() + "/upload" + request.getContextPath() + "/image";

              File localFile = new File(path);
              // 如果文件夹不存在  创建文件夹
              if (!localFile.exists()) {
                  localFile.mkdirs();
              }
    
              File targetFile = new File(path, fileName);
              try {
                  //保存图片
                  file.transferTo(targetFile);
              } catch (IOException e) {
                  e.printStackTrace();
                  return ServerResponse.createByErrorMessage("");
              }
          }
      }
    

    }
    //url 图片路径
    url = url +"upload" + request.getContextPath() + "/image/"+ fileName;
    return ServerResponse.createBySuccessMessage(url);
    }
    }