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SpringBoot实现单文件上传

作者：KevinYang-凯　　发布时间：2023-10-01 21:43:42　

标签：SpringBoot,上传

SpringBoot实现单文件上传功能，供大家参考，具体内容如下

架构为springboot+thymeleaf,采用ajax方式提交

1. 页面testFile.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>测试文件上传</title>

<script src="../static/jquery/jquery-2.1.1.min.js" th:src="@{/jquery/jquery-2.1.1.min.js}"></script>

<script type="text/javascript">
$(function () {
$("#upload1").click(function () {
var formData = new FormData();
formData.append("file", document.getElementById("file").files[0]);
$.ajax({
url: "/file/upload1",
type: "POST",
data: formData,

//必须false才会自动加上正确的Content-Type
contentType: false,

//必须false才会避开jquery对 formdata 的默认处理
//XMLHttpRequest会对 formdata 进行正确的处理
processData: false,

success: function (data) {
if (data.status == "true") {
alert("上传成功！");
}
if (data.status == "error") {
alert(data.msg);
}
},
error: function () {
alert("上传失败！");
}
});
});
});
</script>
</head>
<body>

<form method="POST" enctype="multipart/form-data" action="/file/upload1">
<fieldset>
<legend>单一文件上传实例：</legend>
文件1：<input type="file" name="file" id="file"/><br/>

<input type="button" id="upload1" value="上传"/><br/>
</fieldset>
</form>

</body>
</html>

2. FileController.java

package com.stormkai.controller;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
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.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import lombok.extern.slf4j.Slf4j;

@Controller
@RequestMapping("/file")
@Slf4j
public class FileController {

@GetMapping("/index")
public String index() {
return "testFile";
}

@PostMapping("/upload1")
@ResponseBody
public Map<String, Object> upload1(@RequestParam("file") MultipartFile file, HttpServletRequest request) throws IOException {

log.info("系统路径={}",request.getSession().getServletContext().getRealPath(""));
String path = "F:\\uploadfile\\";
if(!new File(path).exists()){
new File(path).mkdirs();
}
file.transferTo(new File(path + file.getOriginalFilename()));
Map<String, Object> result = new HashMap<>();
result.put("status", "true");
result.put("data", null);
return result;
}

}

来源：https://blog.csdn.net/stormkai/article/details/89450646

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SpringBoot实现单文件上传

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