ajax上传图片存入到指定的文件夹并回显
html代码：
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title><script src="js/jquery-2.1.0.js"></script>
</head>
<body>
<form id="files"><input type="file" name="file"><input type="button" id="tijiao" value="提交"><input type="button" value="删除"><br><img src="" width="1000px" height="500px">
</form>
<script>$(function (){$("#tijiao").click(function () {alert('提交成功');var formData = new FormData($('#files')[0]);$.ajax({url:'shangchuan',type:'post',data: formData,//需要提交的数据，传入实例化的formdata对象，，此对象包含了要上传的文件processData: false,contentType:false,});})var fd = new FormData(document.getElementsByTagName("form")[0]);var photo = document.querySelector("input");var img = document.querySelector("img");photo.onchange = function (){img.src = window.URL.createObjectURL(this.files[0]);}})</script>
</body>
</html>controller：
package com.example.uploadanimage.controller;import org.apache.commons.lang3.time.DateUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;@RestController
public class Upload {@PostMapping("/shangchuan")public String shangchuan(MultipartFile file) throws Exception {String originalFilename = file.getOriginalFilename();System.out.println(originalFilename);File file1 = new File("D:\\\\img",originalFilename);file.transferTo(file1);return "上传成功";}
}
html页面：
页面回显效果图：
提交：
提交完成存入文件夹：
