php如何调用WebService上传文件

url preurl = null;      urlconnection uc = null;      preurl = new url("http://xxx.xxx.xxx.xxx/seeyon/uploadservice.do?      method = processuploadservice"          +"&senderloginname="+"zy"          +"&token="+"997a7cdc-2399-47e8-991e-96c859cccc7f");      string s = parameters.tostring();      uc = preurl.openconnection();      httpurlconnection hc = (httpurlconnection) uc;      hc.setdooutput(true);      hc.setusecaches(false);      hc.setrequestproperty("contenttype", "charset=utf-8");      hc.setrequestmethod("post");      bufferedinputstream  input=new bufferedinputstream(new fileinputstream("c:/ldap集成设计文档.doc"));      string boundary = "---------------------------7d4a6d158c9"; // 分隔符      string filename="ldap集成设计文档.doc";      stringbuffer sb = new stringbuffer();      sb.append("--");      sb.append(boundary);      sb.append("\r\n");      sb.append("content-disposition: form-data; \r\n name=\"1\"; filename=\""+filename+"\"\r\n");      sb.append("content-type: application/msword\r\n\r\n");      hc.setrequestproperty("content-type",          "multipart/form-data;boundary=" + "---------------------------7d4a6d158c9");      byte[] end_data = ("\r\n--" + boundary + "--\r\n").getbytes();      dataoutputstream dos = new dataoutputstream(hc.getoutputstream());      dos.write(sb.tostring().getbytes("utf-8"));      int cc=0;      while((cc=input.read())!=-1)      {          dos.write(cc);      }      dos.write(end_data);      dos.flush();      dos.close();      fileoutputstream file = new fileoutputstream("c:/test.txt");      inputstream is = hc.getinputstream();      int ch;      while ((ch = is.read()) != -1) {           file.write(ch);      }      if (is != null)      is.close();