package com.ray.util;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.ConnectException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Formatter;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.servlet.http.HttpServletRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.ray.pojo.AccessToken;
import net.sf.json.JSONException;
import net.sf.json.JSONObject;
public class WeiXinUtil {
private static Logger log = LoggerFactory.getLogger(WeiXinUtil.class);
//微信的请求url
//获取access_token的接口地址（GET） 限200（次/天）
public final static String access_token_url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid={corpId}&corpsecret={corpsecret}";
/**
* 1.发起https请求并获取结果
*
* @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 httpRequest(String requestUrl, String requestMethod, String outputStr) {
JSONObject jsonObject = null;
StringBuffer buffer = new StringBuffer();
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 httpUrlConn = (HttpsURLConnection) url.openConnection();
httpUrlConn.setSSLSocketFactory(ssf);
httpUrlConn.setDoOutput(true);
httpUrlConn.setDoInput(true);
httpUrlConn.setUseCaches(false);
// 设置请求方式（GET/POST）
httpUrlConn.setRequestMethod(requestMethod);
if ("GET".equalsIgnoreCase(requestMethod))
httpUrlConn.connect();
// 当有数据需要提交时
if (null != outputStr) {
OutputStream outputStream = httpUrlConn.getOutputStream();
// 注意编码格式，防止中文乱码
outputStream.write(outputStr.getBytes("UTF-8"));
outputStream.close();
}
// 将返回的输入流转换成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
// 释放资源
inputStream.close();
inputStream = null;
httpUrlConn.disconnect();
jsonObject = JSONObject.fromObject(buffer.toString());
} catch (ConnectException ce) {
log.error("Weixin server connection timed out.");
} catch (Exception e) {
log.error("https request error:{}", e);
}
return jsonObject;
}
/**
* @desc ：微信上传素材的请求方法
*
* @param requestUrl 微信上传临时素材的接口url
* @param file 要上传的文件
* @return String 上传成功后，微信服务器返回的消息
*/
public static String httpRequest(String requestUrl, File file) {
StringBuffer buffer = new StringBuffer();
try{
//1.建立连接
URL url = new URL(requestUrl);
HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection(); //打开链接
//1.1输入输出设置
httpUrlConn.setDoInput(true);
httpUrlConn.setDoOutput(true);
httpUrlConn.setUseCaches(false); // post方式不能使用缓存
//1.2设置请求头信息
httpUrlConn.setRequestProperty("Connection", "Keep-Alive");
httpUrlConn.setRequestProperty("Charset", "UTF-8");
//1.3设置边界
String BOUNDARY = "----------" + System.currentTimeMillis();
httpUrlConn.setRequestProperty("Content-Type","multipart/form-data; boundary="+ BOUNDARY);
// 请求正文信息
// 第一部分：
//2.将文件头输出到微信服务器
StringBuilder sb = new StringBuilder();
sb.append("--"); // 必须多两道线
sb.append(BOUNDARY);
sb.append("\r\n");
sb.append("Content-Disposition: form-data;name=\"media\";filelength=\"" + file.length()
+ "\";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 outputStream = new DataOutputStream(httpUrlConn.getOutputStream());
// 将表头写入输出流中：输出表头
outputStream.write(head);
//3.将文件正文部分输出到微信服务器
// 把文件以流文件的方式 写入到微信服务器中
DataInputStream in = new DataInputStream(new FileInputStream(file));
int bytes = 0;
byte[] bufferOut = new byte[1024];
while ((bytes = in.read(bufferOut)) != -1) {
outputStream.write(bufferOut, 0, bytes);
}
in.close();
//4.将结尾部分输出到微信服务器
byte[] foot = ("\r\n--" + BOUNDARY + "--\r\n").getBytes("utf-8");// 定义最后数据分隔线
outputStream.write(foot);
outputStream.flush();
outputStream.close();
//5.将微信服务器返回的输入流转换成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
// 释放资源
inputStream.close();
inputStream = null;
httpUrlConn.disconnect();
} catch (IOException e) {
System.out.println("发送POST请求出现异常！" + e);
e.printStackTrace();
}
return buffer.toString();
}
/**
* 2.发起http请求获取返回结果
*
* @param requestUrl 请求地址
* @return
*/
public static String httpRequest(String requestUrl) {
StringBuffer buffer = new StringBuffer();
try {
URL url = new URL(requestUrl);
HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();
httpUrlConn.setDoOutput(false);
httpUrlConn.setDoInput(true);
httpUrlConn.setUseCaches(false);
httpUrlConn.setRequestMethod("GET");
httpUrlConn.connect();
// 将返回的输入流转换成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
// 释放资源
inputStream.close();
inputStream = null;
httpUrlConn.disconnect();
} catch (Exception e) {
}
return buffer.toString();
}
/**
* 3.获取access_token
*
* @param appid 凭证
* @param appsecret 密钥
* @return
*/
public static AccessToken getAccessToken(String appid, String appsecret) {
AccessToken accessToken = null;
String requestUrl = access_token_url.replace("{corpId}", appid).replace("{corpsecret}", appsecret);
JSONObject jsonObject = httpRequest(requestUrl, "GET", null);
// 如果请求成功
if (null != jsonObject) {
try {
accessToken = new AccessToken();
accessToken.setToken(jsonObject.getString("access_token"));
accessToken.setExpiresIn(jsonObject.getInt("expires_in"));
} catch (JSONException e) {
accessToken = null;
// 获取token失败
log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
}
}
return accessToken;
}
/**
* 3.获取微信的JSSDK配置信息
* 方法名：getWxConfig</br>
* 详述：获取微信的配置信息 </br>
* 开发人员：souvc </br>
* 创建时间：2016-1-5 </br>
* @param request
* @return 说明返回值含义
* @throws 说明发生此异常的条件
*/
public static Map<String, Object> getWxConfig(HttpServletRequest request) {
Map<String, Object> ret = new HashMap<String, Object>();
String appId = "wxa0064ea657f80062"; // 必填，公众号的唯一标识
String secret = "fcc960840df869ad1a46af7993784917";
String requestUrl = request.getRequestURL().toString();
String access_token = "";
String jsapi_ticket = "";
String timestamp = Long.toString(System.currentTimeMillis() / 1000); // 必填，生成签名的时间戳
String nonceStr = UUID.randomUUID().toString(); // 必填，生成签名的随机串
String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+ appId + "&secret=" + secret;
//使用http请求获取access_token
JSONObject json = WeiXinUtil.httpRequest(url, "GET", null);
System.out.println(" 获取access_token "+json);
if (json != null) {
//要注意，access_token需要缓存
access_token = json.getString("access_token");
//根据access_token获取jsapi_ticket
url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token="+ access_token + "&type=jsapi";
json = WeiXinUtil.httpRequest(url, "GET", null);
System.out.println("jsapi_ticket "+json);
if (json != null) {
jsapi_ticket = json.getString("ticket");
}
}
String signature = "";
// 注意这里参数名必须全部小写，且必须有序
String sign = "jsapi_ticket=" + jsapi_ticket + "&noncestr=" + nonceStr+ "×tamp=" + timestamp + "&url=" + requestUrl;
try {
MessageDigest crypt = MessageDigest.getInstance("SHA-1");
crypt.reset();
crypt.update(sign.getBytes("UTF-8"));
signature = byteToHex(crypt.digest());
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
ret.put("appId", appId);
ret.put("timestamp", timestamp);
ret.put("nonceStr", nonceStr);
ret.put("signature", signature);
return ret;
}
/**
* 方法名：byteToHex</br>
* 详述：字符串加密辅助方法 </br>
* 开发人员：souvc </br>
* 创建时间：2016-1-5 </br>
* @param hash
* @return 说明返回值含义
* @throws 说明发生此异常的条件
*/
private static String byteToHex(final byte[] hash) {
Formatter formatter = new Formatter();
for (byte b : hash) {
formatter.format("%02x", b);
}
String result = formatter.toString();
formatter.close();
return result;
}
}
