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Spring Boot 上传图片完整示例

Spring Boot上传图片

1. pom.xml<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId></dependency><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId></dependency>2. Application.propertiesspring.servlet.multipart.max-request-size=10MBspring.servlet.multipart.max-file-size=10MB3. htmlupload.html
<!DOCTYPE html><html xmlns:th="http://www.thymeleaf.org"><body><h1>Spring Boot file upload example</h1><form method="POST" action="/upload" enctype="multipart/form-data"> <input type="file" name="file" /><br/><br/> <input type="submit" value=https://www.isolves.com/it/cxkf/yy/JAVA/2019-09-18/"提交" />resut.html
<!DOCTYPE html><html lang="en" xmlns:th="http://www.thymeleaf.org"><body><div th:if="${message}"> <h2 th:text="${message}"/></div></body></html>4. SampleController@Controllerpublic class SampleController { @GetMapping("/") public String upload() { return "upload"; } @RequestMapping("/result") public String result() { return "result"; } @PostMapping("/upload") public String singleFileUpload(@RequestParam("file") MultipartFile file, RedirectAttributes redirectAttributes) { if (file.isEmpty()) { redirectAttributes.addFlashAttribute("message", "Please select a file to upload"); return "redirect:result"; } try { // Get the file and save it somewhere byte[] bytes = file.getBytes(); Path path = Paths.get(uploadDirectory() + "/" + file.getOriginalFilename()); Files.write(path, bytes); redirectAttributes.addFlashAttribute("message", file.getOriginalFilename() + " upload success"); } catch (IOException e) { e.printStackTrace(); } return "redirect:/result"; } private String uploadDirectory() throws FileNotFoundException { //获取跟目录 File path = new File(ResourceUtils.getURL("classpath:").getPath()); if(!path.exists()) path = new File(""); System.out.println("path:"+path.getAbsolutePath()); //如果上传目录为/static/images/upload/，则可以如下获取： File upload = new File(path.getAbsolutePath(),"static/upload/"); if(!upload.exists()) upload.mkdirs(); System.out.println("upload url:"+upload.getAbsolutePath()); //在开发测试模式时，得到的地址为：{项目跟目录}/target/static/images/upload/ //在打包成jar正式发布时，得到的地址为：{发布jar包目录}/static/images/upload/ return upload.getAbsolutePath(); }} 5.访问 localhost:8080/选择上传文件进行上传

Spring Boot 上传图片完整示例

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Spring Boot 上传图片完整示例

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【Spring Boot 上传图片完整示例】 

Spring Boot 上传图片完整示例

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