spring：文件上传RESTFUL Web服务

您可以如下创建您的休息服务。

@RequestMapping(value="/upload", method=RequestMethod.POST)    public @ResponseBody String handleFileUpload(  @RequestParam("file") MultipartFile file){ String name = "test11";        if (!file.isEmpty()) { try {     byte[] bytes = file.getBytes();     BufferedOutputStream stream =   new BufferedOutputStream(new FileOutputStream(new File(name + "-uploaded")));     stream.write(bytes);     stream.close();     return "You successfully uploaded " + name + " into " + name + "-uploaded !"; } catch (Exception e) {     return "You failed to upload " + name + " => " + e.getMessage(); }        } else { return "You failed to upload " + name + " because the file was empty.";        }    }

对于客户端，请执行以下操作。

import java.io.File;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.HttpVersion;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.mime.MultipartEntity;import org.apache.http.entity.mime.content.ContentBody;import org.apache.http.entity.mime.content.FileBody;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.params.CoreProtocolPNames;import org.apache.http.util.EntityUtils;public class Test {  public static void main(String[] args) throws Exception {    HttpClient httpclient = new DefaultHttpClient();    httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);    HttpPost httppost = new HttpPost("http://localhost:8080/upload");    File file = new File("C:\Users\Kamal\Desktop\PDFServlet1.pdf");    MultipartEntity mpEntity = new MultipartEntity();    ContentBody cbFile = new FileBody(file, "multipart/form-data");    mpEntity.addPart("file", cbFile);    httppost.setEntity(mpEntity);    System.out.println("executing request " + httppost.getRequestLine());    HttpResponse response = httpclient.execute(httppost);    HttpEntity resEntity = response.getEntity();    System.out.println(response.getStatusLine());    if (resEntity != null) {      System.out.println(EntityUtils.toString(resEntity));    }    if (resEntity != null) {      resEntity.consumeContent();    }    httpclient.getConnectionManager().shutdown();  }}