这里是一个简单的示例,演示了如何在Spring Boot中从Vue.js上传图像:
1.前端Vue.js代码:
<template>
<div>
<input type="file" @change="handleFileUpload">
<button @click="uploadImage">上传图片button>
div>
template>
<script>
export default {
name: 'ImageUploader',
data() {
return {
imageFile: null,
imageUrl: ''
};
},
methods: {
handleFileUpload(event) {
this.imageFile = event.target.files[0];
},
uploadImage() {
let formData = new FormData();
formData.append('image', this.imageFile);
axios.post('/api/image/upload', formData, {
headers: {
'Content-Type': 'multipart/form-data'
}
}).then(response => {
this.imageUrl = response.data.imageUrl;
});
}
}
};
script>
@RestController
public class ImageController {
@Value("${upload.path}")
private String uploadPath;
@PostMapping("/api/image/upload")
public ResponseEntity<?> uploadImage(@RequestParam("image") MultipartFile file) {
Map<String, Object> response = new HashMap<>();
try {
if (!file.isEmpty()) {
String fileName = file.getOriginalFilename();
Path filePath = Paths.get(uploadPath + "/" + fileName);
Files.copy(file.getInputStream(), filePath, StandardCopyOption.REPLACE_EXISTING);
String imageUrl = "/api/image/" + fileName;
response.put("imageUrl", imageUrl);
} else {
response.put("status", "error");
response.put("message", "No file uploaded");
return ResponseEntity.badRequest().body(response);
}
} catch (IOException e) {
response.put("status", "error");
response.put("message", e.getMessage());
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(response);
}
response.put("status", "success");
return ResponseEntity.ok(response);
}
@GetMapping("/api/image/{fileName:.+}")
public ResponseEntity<Resource> getImage(@PathVariable String fileName) throws IOException {
Path filePath = Paths.get(uploadPath + "/" + fileName);
Resource resource = new UrlResource(filePath.toUri());
return ResponseEntity.ok().contentType(MediaType.IMAGE_JPEG).body(resource);
}
}
这是一个非常简单的示例,涵盖了从Vue.js前端上传一个图像并将其保存到Spring Boot后端服务器的全部过程。你可以根据实际需求进行修改和扩展。