微信公众号开发_HttpUploadFile的代码(五)

package com.igoxin.weixin.custom;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 org.junit.Test;/** *  java通过模拟post方式提交表单实现图片上传功能实例 其他文件类型可以传入 contentType 实现 * @author fanglanfeng * */public class HttpUploadFile {/** * 上传图片 - 模拟post表单提交 *  * @param urlStr * @param textMap * @param fileMap * @param contentType *            没有传入文件类型默认采用application/octet-stream *            contentType非空采用filename匹配默认的图片类型 * @return 返回response数据 */@SuppressWarnings("rawtypes")public static String formUpload(String urlStr, Map<String, String> textMap, Map<String, String> fileMap,String contentType) {String res = "";HttpURLConnection conn = null;// boundary就是request头和上传文件内容的分隔符String BOUNDARY = "---------------------------123821742118716";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());// textif (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\n").append("--").append(BOUNDARY).append("\r\n");strBuf.append("Content-Disposition: form-data; name=\"" + inputName + "\"\r\n\r\n");strBuf.append(inputValue);}out.write(strBuf.toString().getBytes());}// fileif (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();// 没有传入文件类型，同时根据文件获取不到类型，默认采用application/octet-streamcontentType = new MimetypesFileTypeMap().getContentType(file);// contentType非空采用filename匹配默认的图片类型if (!"".equals(contentType)) {if (filename.endsWith(".png")) {contentType = "image/png";} else if (filename.endsWith(".jpg") || filename.endsWith(".jpeg")|| filename.endsWith(".jpe")) {contentType = "image/jpeg";} else if (filename.endsWith(".gif")) {contentType = "image/gif";} else if (filename.endsWith(".ico")) {contentType = "image/image/x-icon";}}if (contentType == null || "".equals(contentType)) {contentType = "application/octet-stream";}StringBuffer strBuf = new StringBuffer();strBuf.append("\r\n").append("--").append(BOUNDARY).append("\r\n");strBuf.append("Content-Disposition: form-data; name=\"" + inputName + "\"; filename=\"" + filename+ "\"\r\n");strBuf.append("Content-Type:" + contentType + "\r\n\r\n");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\n--" + BOUNDARY + "--\r\n").getBytes();out.write(endData);out.flush();out.close();// 读取返回数据StringBuffer strBuf = new StringBuffer();StringBuffer strBufTemp = new StringBuffer();BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));String line = null;while ((line = reader.readLine()) != null) {strBuf.append(line).append("\n");strBufTemp.append(line);}// res = strBuf.toString();res = strBufTemp.toString();System.out.println("res==strBufTemp==" + res);reader.close();reader = null;} catch (Exception e) {System.out.println("发送POST请求出错。" + urlStr);e.printStackTrace();} finally {if (conn != null) {conn.disconnect();conn = null;}}return res;}//=================== 下面的内容是测试用的 =================== /** * TODO -  * 主要是做测试用途，发布的时候建议屏蔽 * @param args *///public static void main(String[] args) {public void mainTest(){//这里可以根据官网测试，拿到token - 下面的是微信官网的测试 - 1.接口类型：“基础支持”  2.接口列表：获取access_token接口/token//https://mp.weixin.qq.com/debug/cgi-bin/apiinfo?t=index&type=自定义菜单&form=自定义菜单创建接口%20/menu/create//TODO --- String access_token = ""; //拿到微信返回的数据，主要是拿到 media_id ,因为可以通过它从微信拿到图片String res = uploadImage(access_token, "/image/01.png");System.out.println("res====" + res);String jadonMedias = res;jadonMedias = jadonMedias.substring(1, jadonMedias.length() - 2);System.out.println("jadonMedias===" + jadonMedias);String[] strings = jadonMedias.split(",");System.out.println("strings===" + strings);Object media = "";Map<String, Object> mediasMap = new HashMap<String, Object>();for (String sss : strings) {String[] ms = sss.split(":");ms[0] = ms[0].substring(1, ms[0].length()-1);ms[1] = ms[1].substring(1, ms[1].length()-1);System.out.println("ms[0]===" + ms[0] + "ms[1]===" + ms[1]);if("media_id".equals(ms[0])){media = ms[1];}mediasMap.put(ms[0], ms[1]);}System.out.println("mediasMap.toString() === " + mediasMap.toString());Object media_id = mediasMap.get("media_id");//查看下面的两个值是否一致，主要是做验证处理System.out.println("media_id========" + media_id);System.out.println("media========" + media);}/** * 测试上传png图片 *  */public static String uploadImage(String access_token, String fileName){//上传图片的URLString url = "https://api.weixin.qq.com/cgi-bin/media/upload?";//测试路径  - 由于本人是用Mac 电脑开发的，使用windows开发是一定要更换路径//fileName = "/Users/admin/Pictures/001.jpg"; Map<String, String> textMap = new HashMap<String, String>();// 可以设置多个input的name，valuetextMap.put("access_token", access_token);textMap.put("type", "image");// 设置file的name，路径Map<String, String> fileMap = new HashMap<String, String>();fileMap.put("upfile", fileName);String contentType = "image/png";// image/pngString ret = formUpload(url, textMap, fileMap, contentType);System.out.println("ret==" + ret);return ret;}//=================== 上面的内容是测试用的 =================== }