HttpClient上传文件 Servlet 处理文件上传

package com.http.test; import java.io.File; import java.io.IOException; import org.apache.commons.httpclient.HttpClient; import org.apache.commons.httpclient.HttpException; import org.apache.commons.httpclient.NameValuePair; import org.apache.commons.httpclient.methods.MultipartPostMethod; import org.apache.commons.httpclient.methods.PostMethod; import org.apache.commons.httpclient.methods.multipart.FilePart; import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity; import org.apache.commons.httpclient.methods.multipart.Part; import org.apache.commons.httpclient.methods.multipart.StringPart; public class HttpClientUtile { public String sendMail(String url) { String strResponse = ""; // 构造HttpClient的实例 HttpClient httpClient = new HttpClient(); // 创建POST方法的实例 PostMethod postMethod = new PostMethod(url); // 填入各个表单域的值 NameValuePair[] data = { new NameValuePair("sign", "agsend"), new NameValuePair("From", "EMAIL"), new NameValuePair("to", "to"), new NameValuePair("subject", "subject"), new NameValuePair("body", "body"), new NameValuePair("password", "PASSWORD") }; // 将表单的值放入postMethod中 postMethod.setRequestBody(data); try { httpClient.getParams().setContentCharset("GBK"); // 执行postMethod int statusCode = httpClient.executeMethod(postMethod); // HttpClient对于要求接受后继服务的请求，象POST和PUT等不能自动处理转发 // 301或者302 // if (statusCode == HttpStatus.SC_MOVED_PERMANENTLY // || statusCode == HttpStatus.SC_MOVED_TEMPORARILY) { // String responseBody = postMethod.getResponseBodyAsString(); // log.info(responseBody); // if (responseBody != null) { // if ("succ".equals(responseBody)) { // 发送成功 // // isSended = true; // } // } // } if (statusCode == 200) { strResponse = postMethod.getResponseBodyAsString(); } } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (HttpException e) { // 发生致命的异常，可能是协议不对或者返回的内容有问题 e.printStackTrace(); } catch (IOException e) { // 发生网络异常 e.printStackTrace(); } finally { // 释放连接 postMethod.releaseConnection(); } return strResponse; } /** * @category 此方法经过验证行不通，就是上传文件和普通的域提交不能同时进行，请各位再加实验 * @param strUrl * @param strFrom * @param strTo * @param strTitle * @param strBody * @param strFiles * @return */ public String sendMail(String strUrl,String strFrom,String strTo ,String strTitle,String strBody,String strFiles) { String strResponse = null; HttpClient httpClient = new HttpClient(); MultipartPostMethod multipartPostMethod = new MultipartPostMethod(strUrl); try { multipartPostMethod.addParameter("from",strFrom); multipartPostMethod.addParameter("to",strTo); multipartPostMethod.addParameter("title",strTitle); multipartPostMethod.addParameter("body",strBody); String strFileName = "aaa"; if (strFiles.indexOf("/")>0) { String[] strTmp = strFiles.split("/"); strFileName = strTmp[strTmp.length-1]; } if (strFiles.indexOf("\\\\")>0) { String[] strTmp = strFiles.split("\\\\"); strFileName = strTmp[strTmp.length-1]; } multipartPostMethod.addParameter("file",strFileName,new File(strFiles)); multipartPostMethod.addPart(new FilePart(strFileName,new File(strFiles))); //httpClient.getParams().setContentCharset("UTF-8"); PostMethod postMethod = new PostMethod(strUrl); NameValuePair[] data = { new NameValuePair("from", "EMAIL"), new NameValuePair("to", "to"), new NameValuePair("title", "subject"), new NameValuePair("body", "body") }; postMethod.setRequestBody(data); //int statusCode = httpClient.executeMethod(postMethod); int statusCode = httpClient.executeMethod(multipartPostMethod); if (statusCode == 200) { strResponse = multipartPostMethod.getResponseBodyAsString(); } } catch (Exception e){ e.printStackTrace(); } finally { multipartPostMethod.releaseConnection(); } return strResponse; } public String uploadFiles(String strUrl, String[] strFiles) { String strResponse = null; HttpClient httpClient = new HttpClient(); MultipartPostMethod multipartPostMethod = new MultipartPostMethod(strUrl); try { for (int i = 0; i < strFiles.length; i++) { multipartPostMethod.addPart(new FilePart("file"+i,new File(strFiles[i]))); } int statusCode = httpClient.executeMethod(multipartPostMethod); if (statusCode == 200) { strResponse = multipartPostMethod.getResponseBodyAsString(); } } catch (Exception e){ e.printStackTrace(); } finally { multipartPostMethod.releaseConnection(); } return strResponse; } public String uploadFiles(String strUrl,String strFrom, String strFiles) { String strResponse = null; HttpClient httpClient = new HttpClient(); PostMethod postMethod = new PostMethod(strUrl); try { FilePart filePart = new FilePart("file","aa.txt",new File(strFiles)); MultipartRequestEntity multipartRequestEntity = new MultipartRequestEntity(new Part[]{new StringPart("HIDDEN","from",strFrom),filePart},postMethod.getParams()); postMethod.addParameter(new NameValuePair("from",strFrom)); postMethod.setRequestEntity(multipartRequestEntity); httpClient.getParams().setContentCharset("UTF-8"); int statusCode = httpClient.executeMethod(postMethod); if (statusCode == 200) { strResponse = postMethod.getResponseBodyAsString(); } } catch (Exception e){ e.printStackTrace(); } finally { postMethod.releaseConnection(); } return strResponse; } /** * @category 上传附件 * @param strUrl * @param strFiles * @return 返回状态码 200 正常 * @throws Exception */ public String uploadFiles(String strUrl,String attachments) throws Exception { String strResponse = null; HttpClient httpClient = new HttpClient(); MultipartPostMethod postMethod = new MultipartPostMethod(strUrl.trim()); try { if (null != attachments && attachments.trim().length()>0) { String [] strArr = attachments.trim().split("\\|"); for (int i = 0; i < strArr.length; i++) { if (null!= strArr[i] && strArr[i].trim().length()>0) { String fileName = strArr[i].trim(); fileName = fileName.replaceAll("\\\\", "/").replaceAll("//","/"); fileName = fileName.replaceAll("\\\\", "/").replaceAll("//","/"); String[] strTmpNameArr = fileName.split("/"); if (strTmpNameArr.length>0) { fileName = strTmpNameArr[strTmpNameArr.length-1]; postMethod.addPart(new FilePart(fileName,new File(strArr[i].trim()))); } } } } else { return "File can not be null"; } httpClient.getParams().setContentCharset("UTF-8"); int statusCode = httpClient.executeMethod(postMethod); if (statusCode == 200) { strResponse = postMethod.getResponseBodyAsString(); } return strResponse; } catch (Exception e){ throw e; } finally { postMethod.releaseConnection(); } } /** * @category 发送邮件信息 * @param strUrl * @param sysID * @param pass * @param from * @param to * @param title * @param level * @param body * @param attachments * @return 正常返回 200 * @throws Exception */ public String postMessage(String strUrl,String sysID,String pass,String from,String to,String title,String level,String body,String attachments) throws Exception { HttpClient httpClient = new HttpClient(); String responseBody=""; PostMethod postMethod = new PostMethod(strUrl.trim()); try { NameValuePair[] nameValuePairs ={new NameValuePair("SysID",sysID), new NameValuePair("Pass",pass),new NameValuePair("From",from),