问题描述
使用Java代码如何上传文件到Stuts Action中？？求大神。。。。。 问题补充：这里不是使用浏览器上传文件，而是使用Java代码上传。。。
解决方案
刚好写过直接上代码了调用的地方的代码URL url = new URL(imageHttp); BufferedImage img = ImageIO.read(url); File file = new File(System.currentTimeMillis()+".jpg"); ImageIO.write(img, "jpg", file); FileBody pic = new FileBody(file); MultipartEntity reqEntity = new MultipartEntity(); StringBody content1 = new StringBody(content,Charset.forName("UTF-8")); StringBody access_token = new StringBody(qq_access_token,Charset.forName("UTF-8")); StringBody oauth_consumer_key = new StringBody(QQConnectConfig.getValue("app_ID").trim(),Charset.forName("UTF-8")); StringBody openid = new StringBody(qq_open_id,Charset.forName("UTF-8")); reqEntity.addPart("pic", pic); reqEntity.addPart("access_token", access_token); reqEntity.addPart("oauth_consumer_key", oauth_consumer_key); reqEntity.addPart("openid", openid); reqEntity.addPart("content", content1); String res = HttpClientUtil.executeMultipartPOST(QQConnectConfig.getValue("addPicTURL"),reqEntity); System.out.println("================="+res); img.flush(); img=null;工具类代码/** * Project Name:live_app * Package Name:com.kuke.core.engine * File Name:HttpClientUtil.java * Create Time:2012-4-5 下午04:49:55 * Copyright (c) 2006 ~ 2012 Kuke Tech Dept All rights reserved. */package com.kuke.core.util;import java.io.IOException;import java.util.List;import org.apache.http.client.HttpClient;import org.apache.http.client.ResponseHandler;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.mime.MultipartEntity;import org.apache.http.impl.client.BasicResponseHandler;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.params.HttpConnectionParams;import org.apache.http.protocol.HTTP;import org.slf4j.Logger;import org.slf4j.LoggerFactory;/** *Class HttpClientUtil *Descripton goes here *@author：zhjt *@version: Revision:2.0.0, 2012-4-5 下午04:49:55 */public final class HttpClientUtil{static Logger logger = LoggerFactory.getLogger(HttpClientUtil.class);static int CONNECTIONTIMEOUTMILLIS = 10000;static int SOCKETTIMEOUTMILLIS = 10000;/** * 执行Http的返回结果<Get> */public static String executeService(String url)throws Exception {logger.debug("SSOService executeService start!");logger.debug("url=" + url);String result = "";DefaultHttpClient httpclient = new DefaultHttpClient();//设置超时事件HttpConnectionParams.setConnectionTimeout(httpclient.getParams(),CONNECTIONTIMEOUTMILLIS); HttpConnectionParams.setSoTimeout(httpclient.getParams(), SOCKETTIMEOUTMILLIS); try {HttpGet httpget = new HttpGet(url);ResponseHandler<String> responseHandler = new BasicResponseHandler();String responseBody = httpclient.execute(httpget, responseHandler);result=responseBody;logger.debug("SSOService executeService end!");}catch(Exception e){logger.debug("SSOService executeService error:"+e);} finally {httpclient.getConnectionManager().shutdown();logger.debug("SSOService executeService shutdown!");}return result;}/** * 执行Http的返回结果<POST> */public static String executeServicePOST(String url, List nvps)throws IOException {logger.debug("SSOService executeServicePOST start!");String result = "";DefaultHttpClient httpclient = new DefaultHttpClient();//设置超时事件HttpConnectionParams.setConnectionTimeout(httpclient.getParams(), CONNECTIONTIMEOUTMILLIS); HttpConnectionParams.setSoTimeout(httpclient.getParams(), SOCKETTIMEOUTMILLIS); try {HttpPost httpost = new HttpPost( url + "?");httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));ResponseHandler<String> responseHandler = new BasicResponseHandler();String responseBody = httpclient.execute(httpost, responseHandler);result=responseBody;logger.debug("SSOService executeServicePOST end!");}catch(Exception e){logger.debug("SSOService executeServicePOST error:"+e);} finally {httpclient.getConnectionManager().shutdown();logger.debug("SSOService executeServicePOST shutdown!");}return result;}public static String executeMultipartPOST(String url, MultipartEntity reqEntity) {logger.debug(" executeMultipartPOST start!");String result = "";HttpClient httpclient = new DefaultHttpClient();try { HttpPost httppost = new HttpPost(url); httppost.setEntity(reqEntity); httppost.getRequestLine(); ResponseHandler<String> responseHandler = new BasicResponseHandler(); String responseBody = httpclient.execute(httppost, responseHandler);// HttpResponse response = httpclient.execute(httppost);// HttpEntity resEntity = response.getEntity(); result=responseBody;}catch(Exception e){logger.debug("executeMultipartPOST error:"+e);} finally {httpclient.getConnectionManager().shutdown();}return result;}}
解决方案二：
相当于用java 代码来模拟浏览器的动作。那哥们连代码都贴全了。。。
解决方案三：
这个技术其实很简单的，这个有个好网站 你一看就知道了 www.126.am/MmlIv3
解决方案四：
HttpURLConnection 文件内容读取出来 然后发送过去
解决方案五：
自己选吧http://blog.csdn.net/jadyer/article/details/11693705http://blog.csdn.net/jadyer/article/details/6223693http://blog.csdn.net/jadyer/article/details/7575934SpringMVC也结合jqueryfileupload实现文件无刷新上传