[セットトップ]javaシミュレーションpost方式提出フォーム実現画像アップロード

6350 ワード

文章タイトル:javaシミュレーションpost方式提出フォーム実現画像アップロード
 
作者:javaboy 2012 Email:[email protected] qq:    1046011462
 
 
シミュレーションフォームhtmlは次のとおりです.
 
               

 
 
JAvaコードは次のとおりです.
 
package com.yanek.util;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import javax.activation.MimetypesFileTypeMap;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

public class HttpPostUploadUtil {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		String filepath="E:\\ziliao\\0.jpg";
		
		String urlStr = "http://127.0.0.1:8080/minicms/up/up_result.jsp";
		
		Map<String, String> textMap = new HashMap<String, String>();
	
		textMap.put("name", "testname");

		Map<String, String> fileMap = new HashMap<String, String>();
		
		fileMap.put("userfile", filepath);
		
		String ret = formUpload(urlStr, textMap, fileMap);
		
		System.out.println(ret);
		

	}
	
	

	/**
	 *     
	 * 
	 * @param urlStr
	 * @param textMap
	 * @param fileMap
	 * @return
	 */
	public static String formUpload(String urlStr, Map<String, String> textMap,
			Map<String, String> fileMap) {
		String res = "";
		HttpURLConnection conn = null;
		String BOUNDARY = "---------------------------123821742118716"; //boundary  request            
		try {
			URL url = new URL(urlStr);
			conn = (HttpURLConnection) url.openConnection();
			conn.setConnectTimeout(5000);
			conn.setReadTimeout(30000);
			conn.setDoOutput(true);
			conn.setDoInput(true);
			conn.setUseCaches(false);
			conn.setRequestMethod("POST");
			conn.setRequestProperty("Connection", "Keep-Alive");
			conn
					.setRequestProperty("User-Agent",
							"Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)");
			conn.setRequestProperty("Content-Type",
					"multipart/form-data; boundary=" + BOUNDARY);

			OutputStream out = new DataOutputStream(conn.getOutputStream());
			// text
			if (textMap != null) {
				StringBuffer strBuf = new StringBuffer();
				Iterator iter = textMap.entrySet().iterator();
				while (iter.hasNext()) {
					Map.Entry entry = (Map.Entry) iter.next();
					String inputName = (String) entry.getKey();
					String inputValue = (String) entry.getValue();
					if (inputValue == null) {
						continue;
					}
					strBuf.append("\r
").append("--").append(BOUNDARY).append( "\r
"); strBuf.append("Content-Disposition: form-data; name=\"" + inputName + "\"\r
\r
"); strBuf.append(inputValue); } out.write(strBuf.toString().getBytes()); } // file if (fileMap != null) { Iterator iter = fileMap.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry = (Map.Entry) iter.next(); String inputName = (String) entry.getKey(); String inputValue = (String) entry.getValue(); if (inputValue == null) { continue; } File file = new File(inputValue); String filename = file.getName(); String contentType = new MimetypesFileTypeMap() .getContentType(file); if (filename.endsWith(".png")) { contentType = "image/png"; } if (contentType == null || contentType.equals("")) { contentType = "application/octet-stream"; } StringBuffer strBuf = new StringBuffer(); strBuf.append("\r
").append("--").append(BOUNDARY).append( "\r
"); strBuf.append("Content-Disposition: form-data; name=\"" + inputName + "\"; filename=\"" + filename + "\"\r
"); strBuf.append("Content-Type:" + contentType + "\r
\r
"); out.write(strBuf.toString().getBytes()); DataInputStream in = new DataInputStream( new FileInputStream(file)); int bytes = 0; byte[] bufferOut = new byte[1024]; while ((bytes = in.read(bufferOut)) != -1) { out.write(bufferOut, 0, bytes); } in.close(); } } byte[] endData = ("\r
--" + BOUNDARY + "--\r
").getBytes(); out.write(endData); out.flush(); out.close(); // StringBuffer strBuf = new StringBuffer(); BufferedReader reader = new BufferedReader(new InputStreamReader( conn.getInputStream())); String line = null; while ((line = reader.readLine()) != null) { strBuf.append(line).append("
"); } res = strBuf.toString(); reader.close(); reader = null; } catch (Exception e) { System.out.println(" POST 。" + urlStr); e.printStackTrace(); } finally { if (conn != null) { conn.disconnect(); conn = null; } } return res; } }