Java微信公众号开发的例子

package com.example.demo.Util; import com.example.demo.Menu.Button; import com.example.demo.Menu.ClickButton; import com.example.demo.Menu.Menu; import com.example.demo.Menu.ViewButton; import com.example.demo.po.AccessToken; import com.example.demo.trans.Data; import com.example.demo.trans.Parts; import com.example.demo.trans.Symbols; import com.example.demo.trans.TransResult; import net.sf.json.JSON; import net.sf.json.JSONObject; import org.apache.commons.collections.Buffer; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.ParseException; import org.apache.http.client.HttpResponseException; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import java.io.*; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLEncoder; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import java.util.HashMap; import java.util.List; import java.util.Map; /** * Created by Administrator on 2017/5/19. */ public class WeiXinUtil { private static final String APPID = "wx813ca84e0d8e7dc8"; private static final String APPSECRET = "cdce24c6c51a7c4ead2d41924daeb621"; private static final String ACCESS_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET"; private static final String UPLOAD_URL = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=ACCESS_TOKEN&type=TYPE"; private static final String CREATE_MENU_URL = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=ACCESS_TOKEN"; private static final String QUERY_MENU_URL = "https://api.weixin.qq.com/cgi-bin/menu/get?access_token=ACCESS_TOKEN"; private static final String DELETE_MENU_URL = "https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=ACCESS_TOKEN"; public static String upload(String filePath, String accessToken, String type) throws IOException { File file = new File(filePath); if (!file.exists() || !file.isFile()) { throw new IOException("文件不存在"); } String url = UPLOAD_URL.replace("ACCESS_TOKEN", accessToken).replace("TYPE", type); URL urlObj = new URL(url); HttpURLConnection con = (HttpURLConnection) urlObj.openConnection(); con.setRequestMethod("POST"); con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); //设置请求头信息 con.setRequestProperty("Connection", "Keep-Alive"); con.setRequestProperty("Charset", "UTF-8"); //设置边界 String BOUNDARY = "--------" + System.currentTimeMillis(); con.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + BOUNDARY); StringBuilder sb = new StringBuilder(); sb.append("--"); sb.append(BOUNDARY); sb.append("\r\n"); sb.append("Content-Disposition:form-data;name=\"file\";filename=\"" + file.getName() + "\"\r\n"); sb.append("Content-Type:application/octet-stream\r\n\r\n"); byte[] head = sb.toString().getBytes("utf-8"); //获得输出流 OutputStream out = new DataOutputStream(con.getOutputStream()); //输出表头 out.write(head); //文件正文部分 //把文件已流文件的方式，推入到url中 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(); //结尾部分 byte[] foot = ("\r\n--" + BOUNDARY + "--\r\n").getBytes("utf-8");//定义最后数据分割线 out.write(foot); out.flush(); out.close(); StringBuffer buffer = new StringBuffer(); BufferedReader reader = null; String result = null; //定义bufferedreader输入流来读取URL的响应 reader = new BufferedReader(new InputStreamReader(con.getInputStream())); String line = null; while ((line = reader.readLine()) != null) { buffer.append(line); } if (result == null) { result = buffer.toString(); } if (reader != null) { reader.close(); } JSONObject jsonObject = JSONObject.fromObject(result); System.out.println(jsonObject); String mediaId = jsonObject.getString("media_id"); return mediaId; } /** * get请求 * * @param url * @return */ public static JSONObject doGetStr(String url) { DefaultHttpClient httpClient = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(url); JSONObject jsonObject = null; try { HttpResponse httpResponse = httpClient.execute(httpGet); HttpEntity httpEntity = httpResponse.getEntity(); if (httpEntity != null) { String result = EntityUtils.toString(httpEntity, "UTF-8"); jsonObject = JSONObject.fromObject(result); } } catch (IOException e) { e.printStackTrace(); } return jsonObject; } /** * post请求 * * @param url * @param outStr * @return */ public static JSONObject doPostStr(String url, String outStr) throws IOException { DefaultHttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); JSONObject jsonObject = null; httpPost.setEntity(new StringEntity(outStr, "UTF-8")); HttpResponse response = httpClient.execute(httpPost); String result = EntityUtils.toString(response.getEntity(), "UTF-8"); jsonObject = JSONObject.fromObject(result); return jsonObject; } /** * 获取AccessToken * * @return */ public static AccessToken getAccessToken() { AccessToken token = new AccessToken(); String url = ACCESS_TOKEN_URL.replace("APPID", APPID).replace("APPSECRET", APPSECRET); JSONObject jsonObject = doGetStr(url); if (jsonObject != null) { token.setToken(jsonObject.getString("access_token")); token.setExpiresIn(jsonObject.getInt("expires_in")); } return token; } /** * 组装菜单 * * @return */ public static Menu initMenu() { Menu menu = new Menu(); ClickButton button11 = new ClickButton(); button11.setName("click菜单"); button11.setType("click"); button11.setKey("11"); ViewButton button21 = new ViewButton(); button21.setName("view菜单"); button21.setType("view"); button21.setUrl("http://www.baidu.com"); ClickButton button31 = new ClickButton(); button31.setName("扫码"); button31.setType("scancode_push"); button31.setKey("31"); ClickButton button32 = new ClickButton(); button32.setName("地理位置"); button32.setType("location_select"); button32.setKey("32"); Button button = new Button(); button.setName("菜单"); button.setSub_button(new Button[]{button32, button31}); menu.setButton(ne