转自:http://blog.csdn.net/mhmyqn/article/details/26395743
在使用springmvc提供rest接口实现文件上传时,有时为了测试需要使用RestTemplate进行调用,那么在使用RestTemplate调用文件上传接口时有什么特别的地方呢?实际上只需要注意一点就行了,就是创建文件资源时需要使用org.springframework.core.io.FileSystemResource类,而不能直接使用java.io.File对象。
Controller中的rest接口代码如下:
- @ResponseBody
- @RequestMapping(value = "/upload.do", method = RequestMethod.POST)
- public String upload(String fileName, MultipartFile jarFile) {
- // 下面是测试代码
- System.out.println(fileName);
- String originalFilename = jarFile.getOriginalFilename();
- System.out.println(originalFilename);
- try {
- String string = new String(jarFile.getBytes(), "UTF-8");
- System.out.println(string);
- } catch (UnsupportedEncodingException e) {
- e.printStackTrace();
- } catch (IOException e) {
- e.printStackTrace();
- }
- // TODO 处理文件内容...
- return "OK";
- }
使用RestTemplate测试上传代码如下:
- @Test
- public void testUpload() throws Exception {
- String url = "http://127.0.0.1:8080/test/upload.do";
- String filePath = "C:\\Users\\MikanMu\\Desktop\\test.txt";
- RestTemplate rest = new RestTemplate();
- FileSystemResource resource = new FileSystemResource(new File(filePath));
- MultiValueMap<String, Object> param = new LinkedMultiValueMap<>();
- param.add("jarFile", resource);
- param.add("fileName", "test.txt");
- String string = rest.postForObject(url, param, String.class);
- System.out.println(string);
- }
其中:
- String string = rest.postForObject(url, param, String.class);
可以换成:
- HttpEntity<MultiValueMap<String, Object>> httpEntity = new HttpEntity<MultiValueMap<String,Object>>(param);
- ResponseEntity<String> responseEntity = rest.exchange(url, HttpMethod.POST, httpEntity, String.class);
- System.out.println(responseEntity.getBody());