java发送url请求进行文件的提交以及后台struts2的action接收处理
1、java模拟表单方式发送url请求进行文件的提交
/** * * @作者 王建明 * @创建日期 2013-06-27 * @创建时间 19:28:18 * @描述 —— 模拟表单进行文件数据提交 */private static void testSimulateFormToPostFile() {String localPath = “F:\\软件开发经验\\DeleteNullDir.java”;File file = null;// 本地文件URL url = null;// 服务器action地址StringBuffer sb_cookie = null;// 拼装cookiesStringBuffer sb_body = null;// 报文体HttpURLConnection httpUrl = null;// http协议类OutputStream fos = null;// 文件流FileInputStream fis = null;// 服务器回写响应流BufferedReader br = null;// 读取响应try {file = new File(localPath);if (!file.exists()) {throw new Exception();}String _url = ;// Cookie[] cs = request.getCookies();// sb_cookie = new StringBuffer();// for (Cookie c : cs) {// sb_cookie.append(” “);// sb_cookie.append(c.getName());// sb_cookie.append(“=”);// sb_cookie.append(c.getValue());// sb_cookie.append(“;”);// }// String cookie = sb_cookie.substring(0, sb_cookie.length() – 1);//// cookie结束不含有”;”String boundary = “—————————7da2e536604c8”;url = new URL(_url);httpUrl = (HttpURLConnection) url.openConnection();// 创建连接(true);// 创建输入流，必须有(true);// 创建输出流，必须有(false);// 不缓存(30000);// 连接超时(30000);// 响应超时(“POST”);(“Content-Length”, “” + file.length());// 文件大小(“Charset”, “UTF-8”);(“Content-Type”,”multipart/form-data;boundary=” + boundary);(“Connection”, “Keep-Alive”);// 连接方式，此处为长连接// (“Cookie”, cookie);// 权限验证使用fos = ();// 注意，http协议，是流传输，全部内容都要转换为byte类型sb_body = new StringBuffer();// 分隔符sb_body.append(“–“);sb_body.append(boundary);sb_body.append(“\r\n”);// 文档类型sb_body.append(“Content-Disposition: form-data;name=\”upFile\”;”+ “filename=\”” + “upload_data.xlsx” + “\”\r\n”);sb_body.append(“Content-Type:application/ms-word\r\n\r\n”);byte[] head = sb_body.toString().getBytes();fos.write(head);// 文件内容fis = new FileInputStream(file);byte[] read = new byte[2048];int offset = 0;while ((offset = fis.read(read)) != -1) {fos.write(read, 0, offset);}fos.write((“\r\n–” + boundary + “–\r\n”).getBytes());fos.flush();// 发送请求// HTTP响应br = new BufferedReader(new InputStreamReader(httpUrl.getInputStream()));String line = null;StringBuffer sb = new StringBuffer();while ((line = br.readLine()) != null) {sb.append(line);}System.out.println(sb.toString());} catch (Exception e) {e.printStackTrace();}}
2、java使用流的方式发送url请求进行文件的提交
/** * * @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(“;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”);nnect();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();}}
3、后台服务端对应的struts2进行文件内容的接收处理【ajaxUploadFile和ajaxUploadFileTwo两个action的接收处理】
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 mons.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 */@ornvention.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());pyFile(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 */@ornvention.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;}}
人之所以能，是相信能。
