Spring Boot檔案上傳
阿新 • • 發佈：2021-03-21
說明：Spring Boot應用中如何實現檔案上傳功能
1.建立專案，匯入依賴
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" 2.設計上傳頁面
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>檔案上傳頁面</title>
</head>
<body>
檔案上傳頁面
<hr/>
<form action="/uploadAttach" method="post" enctype="multipart/form-data">
請選擇檔案：<input type="file" name="attach"/><br/>
<input type="submit" value="開始上傳"/>
</form>
</body>
</html>
3.編寫Controller處理檔案
package com.zslaa.controller;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
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.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
/**
* 控制器
*/
@RestController
public class UploadController {
/*
* 接收檔案
*/
@RequestMapping("/uploadAttach")
public String upload(@RequestParam("attach")MultipartFile file) throws Exception{
//處理檔案
System.out.println("檔案原名稱："+file.getOriginalFilename());
System.out.println("檔案型別："+file.getContentType());
//儲存到硬碟
file.transferTo(new File("c:/"+file.getOriginalFilename()));
return "上傳成功";
}
}
4.編寫引導類
package com.yiidian;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* Spring Boot引導類
* 一點教程網 - www.yiidian.com
*/
@SpringBootApplication
public class MyBootApplication {
public static void main(String[] args) {
SpringApplication.run(MyBootApplication.class,args);
}
}
5.執行測試
