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.FileOutputStream;
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}";
//获取jsapi_ticket的接口地址(GET) 限200(次/天)
public final static String jsapi_ticket_url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=ACCESSTOKEN";
/**
* 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;
}
/**
* 2.发送https请求之获取临时素材
* @param requestUrl
* @param savePath 文件的保存路径,此时还缺一个扩展名
* @return
* @throws Exception
*/
public static File getFile(String requestUrl,String savePath) throws Exception {
//String path=System.getProperty("user.dir")+"/img//1.png";
// 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("GET");
httpUrlConn.connect();
//获取文件扩展名
String ext=getExt(httpUrlConn.getContentType());
savePath=savePath+ext;
System.out.println("savePath"+savePath);
//下载文件到f文件
File file = new File(savePath);
// 获取微信返回的输入流
InputStream in = httpUrlConn.getInputStream();
//输出流,将微信返回的输入流内容写到文件中
FileOutputStream out = new FileOutputStream(file);
int length=100*1024;
byte[] byteBuffer = new byte[length]; //存储文件内容
int byteread =0;
int bytesum=0;
while (( byteread=in.read(byteBuffer)) != -1) {
bytesum += byteread; //字节数 文件大小
out.write(byteBuffer,0,byteread);
}
System.out.println("bytesum: "+bytesum);
in.close();
// 释放资源
out.close();
in = null;
out=null;
httpUrlConn.disconnect();
return file;
}
/**
* @desc :2.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");
InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
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;
}
/**
* 4. 获取JsapiTicket
* @param accessToken
* @return
*/
public static String getJsapiTicket(String accessToken){
String requestUrl = jsapi_ticket_url.replace("ACCESSTOKEN", accessToken);
JSONObject jsonObject = httpRequest(requestUrl, "GET", null);
String jsapi_ticket="";
// 如果请求成功
if (null != jsonObject) {
try {
jsapi_ticket=jsonObject.getString("ticket");
} catch (JSONException e) {
// 获取token失败
log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
}
}
return jsapi_ticket;
}
/**
* 3.获取企业微信的JSSDK配置信息
* @param request
* @return
*/
public static Map<String, Object> getWxConfig(HttpServletRequest request) {
Map<String, Object> ret = new HashMap<String, Object>();
//1.准备好参与签名的字段
String nonceStr = UUID.randomUUID().toString(); // 必填,生成签名的随机串
//System.out.println("nonceStr:"+nonceStr);
String accessToken=WeiXinUtil.getAccessToken(WeiXinParamesUtil.corpId, WeiXinParamesUtil.agentSecret).getToken();
String jsapi_ticket =getJsapiTicket(accessToken);// 必填,生成签名的H5应用调用企业微信JS接口的临时票据
//System.out.println("jsapi_ticket:"+jsapi_ticket);
String timestamp = Long.toString(System.currentTimeMillis() / 1000); // 必填,生成签名的时间戳
//System.out.println("timestamp:"+timestamp);
String url=request.getRequestURL().toString();
//System.out.println("url:"+url);
//2.字典序 ,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=" + url;
//3.sha1签名
String signature = "";
try {
MessageDigest crypt = MessageDigest.getInstance("SHA-1");
crypt.reset();
crypt.update(sign.getBytes("UTF-8"));
signature = byteToHex(crypt.digest());
//System.out.println("signature:"+signature);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
ret.put("appId", WeiXinParamesUtil.corpId);
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;
}
private static String getExt(String contentType){
if("image/jpeg".equals(contentType)){
return ".jpg";
}else if("image/png".equals(contentType)){
return ".png";
}else if("image/gif".equals(contentType)){
return ".gif";
}
return null;
}
}