微信推送消息模板Java代码

package util; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.ConnectException; import java.net.URL; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLSocketFactory; import javax.net.ssl.TrustManager; import net.sf.json.JSONException; import net.sf.json.JSONObject; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import entity.Token; /** * 通用工具类 * @author Luo * @date 2014-10-22 */ public class CommonUtil { private static Logger log = LoggerFactory.getLogger(CommonUtil.class); // 凭证获取（GET） public final static String token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET"; /** * 发送https请求 * * @param requestUrl 请求地址 * @param requestMethod 请求方式（GET、POST） * @param outputStr 提交的数据 * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值) */ public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) { JSONObject jsonObject = null; try { // 创建SSLContext对象，并使用我们指定的信任管理器初始化 TrustManager[] tm = { new MyX509TrustManager() }; SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE"); sslContext.init(null, tm, new java.security.SecureRandom()); // 从上述SSLContext对象中得到SSLSocketFactory对象 SSLSocketFactory ssf = sslContext.getSocketFactory(); URL url = new URL(requestUrl); HttpsURLConnection conn = (HttpsURLConnection) url.openConnection(); conn.setSSLSocketFactory(ssf); conn.setDoOutput(true); conn.setDoInput(true); conn.setUseCaches(false); // 设置请求方式（GET/POST） conn.setRequestMethod(requestMethod); // 当outputStr不为null时向输出流写数据 if (null != outputStr) { OutputStream outputStream = conn.getOutputStream(); // 注意编码格式 outputStream.write(outputStr.getBytes("UTF-8")); outputStream.close(); } // 从输入流读取返回内容 InputStream inputStream = conn.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8"); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String str = null; StringBuffer buffer = new StringBuffer(); while ((str = bufferedReader.readLine()) != null) { buffer.append(str); } // 释放资源 bufferedReader.close(); inputStreamReader.close(); inputStream.close(); inputStream = null; conn.disconnect(); jsonObject = JSONObject.fromObject(buffer.toString()); } catch (ConnectException ce) { log.error("连接超时：{}", ce); } catch (Exception e) { log.error("https请求异常：{}", e); } return jsonObject; } /** * 获取接口访问凭证 * * @param appid 凭证 * @param appsecret 密钥 * @return */ public static Token getToken(String appid, String appsecret) { Token token = null; String requestUrl = token_url.replace("APPID", appid).replace("APPSECRET", appsecret); // 发起GET请求获取凭证 JSONObject jsonObject = httpsRequest(requestUrl, "GET", null); if (null != jsonObject) { try { token = new Token(); token.setAccessToken(jsonObject.getString("access_token")); token.setExpiresIn(jsonObject.getInt("expires_in")); } catch (JSONException e) { token = null; // 获取token失败 log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg")); } } return token; } }