使用 HttpClient 进行文件上传

1.使用 AddPart 方法

public static void upload(String authorization,String baseUrl,String filePath,String userId,String isOverWrite,String remotePath){

   CloseableHttpClient client = HttpClients.createDefault();
   String uploadFile_url = Utils.getValue("uploadFile.url");
   String url=baseUrl+uploadFile_url;

   HttpPost post = new HttpPost(url);
   System.out.println("---->upload_url:"+url);

   //设置请求头
   HashMap<String, String> header = new HashMap<>();
   header.put("Authorization", authorization);//Basic YWRtaW4xMjM6MTIzcXdl
   Iterator<String> iterator_header = header.keySet().iterator();
   while(iterator_header.hasNext()){
      String key = iterator_header.next();
      post.addHeader(key,header.get(key));
   }

   //构造待上传数据,加入builder
   File file=new File(filePath);
   String fimeName = file.getName();
   MultipartEntityBuilder builder = MultipartEntityBuilder.create();
   builder.setMode(HttpMultipartMode.RFC6532);
   builder.setCharset(Charset.forName("UTF-8"));
   builder.addPart("userId", new StringBody(userId, ContentType.MULTIPART_FORM_DATA));
   builder.addPart("remotePath", new StringBody(remotePath, ContentType.MULTIPART_FORM_DATA));
   builder.addPart("isOverWrite", new StringBody(isOverWrite, ContentType.MULTIPART_FORM_DATA));
   builder.addPart("isSendEmail", new StringBody(String.valueOf(false), ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowChunkNumber", new StringBody("1", ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowChunkSize", new StringBody("104857600", ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowCurrentChunkSize", new StringBody("90058", ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowTotalSize", new StringBody("90058", ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowIdentifier", new StringBody("90058-2pdf", ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowFilename", new StringBody(fimeName, ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowRelativePath", new StringBody(fimeName, ContentType.MULTIPART_FORM_DATA));
   builder.addPart("flowTotalChunks", new StringBody("1", ContentType.MULTIPART_FORM_DATA));
   builder.addPart("file", new FileBody(file, ContentType.DEFAULT_BINARY));
   HttpEntity entity = builder.build();

   post.setEntity(entity);
   HttpResponse response = null;
   try {
      response = client.execute(post);
      System.out.println("---->reponse:"+response);
      entity = response.getEntity();
      JSONObject result = JSONObject.parseObject(EntityUtils.toString(entity));
   } catch (IOException e) {
      e.printStackTrace();
   }
}

2.使用 addTextBody 方法

  public static void uploadInterface(String authorization,String baseUrl,String filePath,String userId,String isOverWrite,String remotePath){

      CloseableHttpClient client = HttpClients.createDefault();
　　　　String uploadFile_url = Utils.getValue("uploadFile.url");
　　　　String url=baseUrl+uploadFile_url;
      HttpPost httpPost=new HttpPost(url);//通过post传递  

　　　　//heard处理
      HashMap<String, String> header = new HashMap<>();
　　　 header.put("Authorization", authorization);//
      Iterator<String> iterator_header = header.keySet().iterator();
      while(iterator_header.hasNext()){
       String key = iterator_header.next();
       httpPost.addHeader(key,header.get(key));
      }
      File file=new File(filePath);
      String  fileName=file.getName();
　　　　MultipartEntityBuilder builder = MultipartEntityBuilder.create();

   　　builder.addTextBody("userId", userId,ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("remotePath", "/",ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("isOverWrite", "-1",ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("isSendEmail", String.valueOf(false),ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowChunkNumber", "1",ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowChunkSize", "104857600",ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowCurrentChunkSize", "3493921",ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowTotalSize", "3493921",ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowIdentifier", "3493921-1jpg",ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowFilename", fileName,ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowRelativePath", fileName,ContentType.TEXT_PLAIN.withCharset("UTF-8"))
      .addTextBody("flowTotalChunks", "1",ContentType.TEXT_PLAIN.withCharset("UTF-8"));

  　　 builder.addBinaryBody("file", file, ContentType.create("image/jpeg"), fileName);
      HttpEntity entity = builder.build();

      httpPost.setEntity(entity);  

      /**发送请求*/  
      try {  
       String result="";
          HttpResponse response=client.execute(httpPost);  
          HttpEntity responseEntity = response.getEntity();
          if (responseEntity != null) {
              // 将响应内容转换为字符串
              result = EntityUtils.toString(responseEntity, Charset.forName("UTF-8"));
          }
          //判断是否上传成功  返回200  
          if (response.getStatusLine().getStatusCode()== HttpStatus.SC_OK){  
          }  
      } catch (ClientProtocolException e){  
          e.printStackTrace();  
      } catch (IOException e) {  
          e.printStackTrace();  
      }  

  }

3.addBinaryBody中文文件乱码解决方法

ContentType contentType = ContentType.create("text/plain",Charset.forName("UTF-8"));
HttpEntity caiJiEntity= MultipartEntityBuilder.create()
.addBinaryBody("file", new File("d://2.mp4"), ContentType.create("video/mp4"), "2.mp4")
.addBinaryBody("file1",new File("d:/1-120915094151.jpg"),

ContentType.create("image/jpg"), "1-120915094151.jpg")

.addTextBody("mtxs", "三面立柱",contentType)
.build();