/**
  *
  * @作者 王建明
  * @创建日期 2013-06-27
  * @创建时间 19:30:05
  * @描述 —— 将文件流直接post的方式进行文件的提交
  */
 private static void testPostInStream() {
  try {
   URL url = new URL(
     "http://10.49.61.101:9999/finance/ajaxUploadFileTwo.do?filePath=/c/v/b/&fileName=aaa.xlsx);
   // 发送POST请求必须设置如下两行
   HttpURLConnection conn = (HttpURLConnection) url.openConnection();

   conn.setDoOutput(true);
   conn.setUseCaches(false);
   conn.setRequestMethod("POST");
   conn.setRequestProperty("Content-Type", "text/html");
   conn.setRequestProperty("Cache-Control", "no-cache");
   conn.setRequestProperty("Charsert", "UTF-8");
   // conn.setRequestProperty("upFileFileName", "upFileFileName.doc");
   conn.connect();
   conn.setConnectTimeout(10000);

   OutputStream out = conn.getOutputStream();

   File file = new File("F:\\软件开发经验NumberFormateUtil.java>");

   DataInputStream in = new DataInputStream(new FileInputStream(file));

   int bytes = 0;
   byte[] buffer = new byte[1024];
   while ((bytes = in.read(buffer)) != -1) {
    out.write(buffer, 0, bytes);
   }
   in.close();
   out.flush();
   out.close();

   BufferedReader br = new BufferedReader(new InputStreamReader(conn
     .getInputStream()));
   String line = null;
   StringBuffer sb = new StringBuffer();
   while ((line = br.readLine()) != null) {
    sb.append(line);
   }
   System.out.println(sb.toString());
   conn.disconnect();
   System.out.println("over");
  } catch (Exception e) {
   System.out.println("发送文件出现异常！" + e);
   e.printStackTrace();
  }
 }

package com.eshopmates.finance.action;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.Action;

/**
 * @作者 王建明
 * @创建日期 2013-06-27
 * @创建时间 18:22:33
 * @版本号 V 1.0
 */
public class GetPostFileAction extends BaseAction {
 // 上传文件
 private File upFile;// 拦截器会为你在缓冲区创建临时文件，这是临时文件对象
 private String upFileContentType;// 头域中的值
 private String upFileFileName;// 报文体中的name

 /**
  * @return
  * @作者 王建明
  * @创建日期 2013-06-27
  * @创建时间 19:26:22
  * @描述 —— 网页表单方式或者模拟表单方式提交file文件进行处理
  */
 @org.apache.struts2.convention.annotation.Action("ajaxUploadFile")
 public String ajaxUploadFile() {
  String result;
  try {
   String path = getRequest().getSession().getServletContext()
     .getRealPath("/uploadFile/" + upFileFileName);// 绝对路径
   File currFile = new File(path);
   System.out
     .println("接收到的文件存放路径======>" + currFile.getAbsolutePath());
   FileUtils.copyFile(this.upFile, currFile);// struts2提供的工具类，意思是把缓存区文件放到哪里
   result = "{\"success\":true,\"uploadFile\":\"" + currFile.getAbsolutePath()
     + "\",\"fileSize\":" + currFile.length() + "}";
  } catch (IOException e) {
   e.printStackTrace();
   result = "{\"success\":false}";
  }
  super.ajaxPrintMsg(result, super.CONTENTTYPE_HTML);
  System.out.println("result========>" + result);
  return Action.NONE;
 }

 /**
  * @return
  * @throws Exception
  * @作者 王建明
  * @创建日期 2013-06-27
  * @创建时间 19:26:55
  * @描述 —— 直接以文件流的形式进行文件的post提交
  */
 @org.apache.struts2.convention.annotation.Action("ajaxUploadFileTwo")
 public String ajaxUploadFileTwo() throws Exception {
  String result;
  HttpServletRequest request = ServletActionContext.getRequest();
  String rootPath = request.getSession().getServletContext().getRealPath(
    "/");

  String filePath = request.getParameter("filePath");
  String fileName = request.getParameter("fileName");
  System.out.println("fileName=====>" + fileName);

  InputStream input = request.getInputStream();
  String fileFullPath = rootPath + filePath + fileName;
  File saveFile = new File(fileFullPath);

  File file = new File(rootPath + filePath);
  if (!file.exists()) {
   file.mkdirs();
  }
  FileOutputStream fos = new FileOutputStream(fileFullPath);

  int size = 0;
  byte[] buffer = new byte[1024];
  while ((size = input.read(buffer, 0, 1024)) != -1) {
   fos.write(buffer, 0, size);
  }
  fos.close();
  input.close();
  result = "{\"success\":true,\"uploadFileName\":\""
    + saveFile.getAbsolutePath() + "\",\"fileSize\":"
    + saveFile.length() + "}";
  super.ajaxPrintMsg(result, super.CONTENTTYPE_HTML);
  System.out.println("filePath===>" + file.getAbsolutePath());
  return Action.NONE;
 }

 public File getUpFile() {
  return upFile;
 }

 public void setUpFile(File upFile) {
  this.upFile = upFile;
 }

 public String getUpFileContentType() {
  return upFileContentType;
 }

 public void setUpFileContentType(String upFileContentType) {
  this.upFileContentType = upFileContentType;
 }

 public String getUpFileFileName() {
  return upFileFileName;
 }

 public void setUpFileFileName(String upFileFileName) {
  this.upFileFileName = upFileFileName;
 }
}