layui实现图片虚拟路径上传,预览和删除的例子

效果如下所示：

前端：

  #detailTbody tr:hover {
    background: #fff;
  }

  .layui-form-label {
    width: 110px;
  }

  .uploader-list {
    margin-left: -15px;
  }

  .uploader-list .info {
    position: relative;
    margin-top: -25px;
    background-color: black;
    color: white;
    filter: alpha(Opacity=80);
    -moz-opacity: 0.5;
    opacity: 0.5;
    width: 100px;
    height: 25px;
    text-align: center;
    display: none;
  }

  .uploader-list .handle {
    position: relative;
    background-color: #ff6a00;
    color: white;
    filter: alpha(Opacity=80);
    -moz-opacity: 0.5;
    width: 100px;
    text-align: right;
    height: 18px;
    margin-bottom: -18px;
    display: none;
  }

  .uploader-list .handle span {
    margin-right: 5px;
  }

  .uploader-list .handle span:hover {
    cursor: pointer;
  }

  .uploader-list .file-iteme {
    margin: 12px 0 0 15px;
    padding: 1px;
    float: left;
  }

    
 
      单据上传（可上传多张）
      

   预览图：
   
 
   
     
     
     
   
     
 
      
    

js：

 layui.use(['form', 'layer', 'laydate', 'upload'], function () {
    $ = layui.jquery;
    var form = layui.form,
      layer = layui.layer,
      laydate = layui.laydate,
      upload = layui.upload;
    //多图片上传
    upload.render({
      elem: '#test2'
      , url: '/psi/order/uploadImg'
      , multiple: true
      , before: function (obj) {
 layer.msg('图片上传中...', {
   icon: 16,
   shade: 0.01,
   time: 0
 })
      }
      , done: function (res) {
 layer.close(layer.msg());//关闭上传提示窗口
 //上传完毕
 $('#uploader-list').append(
   '' +
   ' ' +
   '' +
   ''
 );
      }
    });
  });

  $(document).on("mouseenter mouseleave", ".file-iteme", function (event) {
    if (event.type === "mouseenter") {
      //鼠标悬浮
      $(this).children(".info").fadeIn("fast");
      $(this).children(".handle").fadeIn("fast");
    } else if (event.type === "mouseleave") {
      //鼠标离开
      $(this).children(".info").hide();
      $(this).children(".handle").hide();
    }
  });
  $(document).on("click", ".file-iteme .handle", function(event){
    $(this).parent().remove();
  })
})
function showBig(obj) {
  var url = (obj.src);
  var index = layer.open({
    type: 2,
    content: url,
    area: ['100%', '100%'],
    title: "单据",
    maxmin: true,
    closeBtn: 1
  });
  layer.full(index);
}

controller层

  @RequestMapping(value = "/uploadImg")
  @ResponseBody
  public  Map uploadImg(MultipartFile file,HttpServletRequest request){
     Map data = new HashMap<>();
     String url = "";
     if (!file.isEmpty()){
url = FileUploadUtil.saveImage(file,"orderVoucher",request);
     }
     data.put("url",url);
     return data;
  }

FileUploadUtil类

import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.*;
import java.util.Date;

public class FileUploadUtil {

  public static String fileUploadPathUrl="D:\svnproject\wechatprintingPicture";

  
  public static String saveImage(MultipartFile file, String fileName, HttpServletRequest requestFileUploadUtil) {
    long timestamp = new Date().getTime();//获取时间戳
    String realPath = fileUploadPathUrl;//项目路径
    String newFileName = timestamp + "" + file.getOriginalFilename(); //file.getOriginalFilename()是获取原始图片的拓展名，newfileName新的文件名字
    String path = realPath + "/" + fileName;
    String newPath = path + "/" + newFileName;////图片存放的位置路径
    File filePath = new File(path + "/");
    if (!filePath.exists()) {
      filePath.mkdirs();
    }
    if (!file.isEmpty()) {
      BufferedOutputStream out = null;
      try {
 out = new BufferedOutputStream(
     new FileOutputStream(new File(newPath)));
 out.write(file.getBytes());
 out.flush();
 out.close();
      } catch (FileNotFoundException e) {
 e.printStackTrace();
      } catch (IOException e) {
 e.printStackTrace();
      }
    }
    String url = requestFileUploadUtil.getScheme() + "://" + requestFileUploadUtil.getServerName() + ":" + requestFileUploadUtil.getServerPort() + requestFileUploadUtil.getContextPath() + "/" + fileName + "/" + newFileName;
    return url;
  }
}

yml虚拟路径配置

spring:
 resources:
  static-locations: classpath:/meta-INF/resources/,classpath:/resources/,classpath:/static/,classpath:/public/,file:${web.uploadPath}

web:
 uploadPath: D:/svnproject/wechatprintingPicture

以上这篇layui实现图片虚拟路径上传,预览和删除的例子就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持考高分网。