前言
注意:
1.corpid是企业微信的ID， corpsecret是应用程序的；需要应用配置网页授权可信任域名，下载完文件后，把已下载的文件放置到域名根目录下（需要管理员权限，查看文档具体说明。）
2.小程序获取方法其实是一样的，只是地址不一样，可以看一下微信文档说明。
1.企业微信获取access_token
https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=corpid&corpsecret=corpsecret
/**
* 企业微信access_token
* @return
*/
public static String getQyAccess_token() throws Exception {
String nowtime = DateHelper.getNow();
//小于半个小时直接返回之前的 qywx_accesstoken
if(StringHelper.isNotEmpty(qywx_accesstoken) && DateHelper.getDateSecond(qywx_accesstokentime,nowtime)<1800){
return qywx_accesstoken;
}
qywx_accesstokentime = nowtime;
HttpURLConnection conn = null;
InputStreamReader inputStreamReader = null;
BufferedReader bufferedReader = null;
JSONObject jsonObject = null;
try {
String url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid="+CORPID+"&corpsecret="+CORPSECRET;
URL u = new URL(url);
conn = (HttpURLConnection) u.openConnection();
conn.setRequestMethod("GET");
conn.connect();
inputStreamReader = new InputStreamReader(conn.getInputStream(), "utf-8");
bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
StringBuffer buffer = new StringBuffer();
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
jsonObject = JSONObject.fromObject(buffer.toString());
String access_token = jsonObject.getString("access_token");
//System.out.println("----------------------Access_token---------------------------" + access_token);
return access_token;
} catch (Exception e) {
System.out.println("----------------------Access_tokenError---------------------------" + jsonObject);
e.printStackTrace();
} finally {
try {
// 释放资源
if (bufferedReader != null) {
bufferedReader.close();
}
if (inputStreamReader != null) {
inputStreamReader.close();
}
if (conn != null) {
conn.disconnect();
}
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
2.获取jsticket
https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=access_token
/**
* 获取jsticket的执行体
*
* @param access_token
* @return
*/
public static String getTicket(String access_token) throws Exception {
String nowtime = DateHelper.getNow();
//小于半个小时直接返回之前的 ticket
if(StringHelper.isNotEmpty(ticket) && DateHelper.getDateSecond(ticket_time,nowtime)<1800){
return ticket;
}
ticket_time = nowtime;
HttpURLConnection conn = null;
InputStreamReader inputStreamReader = null;
BufferedReader bufferedReader = null;
JSONObject jsonObject = null;
try {
String getticket = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token="+access_token;
String url = String.format(getticket, APPID, APPSECRET);
URL u = new URL(url);
conn = (HttpURLConnection) u.openConnection();
conn.setRequestMethod("GET");
conn.connect();
inputStreamReader = new InputStreamReader(conn.getInputStream(), "utf-8");
bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
StringBuffer buffer = new StringBuffer();
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
jsonObject = JSONObject.fromObject(buffer.toString());
String ticket = jsonObject.getString("ticket");
System.out.println("----------------------ticket---------------------------" + ticket);
return ticket;
} catch (Exception e) {
System.out.println("----------------------ticketError---------------------------" + jsonObject);
e.printStackTrace();
} finally {
try {
// 释放资源
if (bufferedReader != null) {
bufferedReader.close();
}
if (inputStreamReader != null) {
inputStreamReader.close();
}
if (conn != null) {
conn.disconnect();
}
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
3.获取前端jssdk页面配置需要用到的配置参数
/**
* 前端jssdk页面配置需要用到的配置参数
*
* @param url
* @param ticket
* @return
* @throws Exception
*/
public static Map<String, String> getSignature(String url, String ticket,String appid) throws Exception {
String noncestr = UUID.randomUUID().toString();
String timestamp = Long.toString(System.currentTimeMillis() / 1000);
// 注意这里参数名必须全部小写，且必须有序
String string1 = "jsapi_ticket=" + ticket +
"&noncestr=" + noncestr +
"×tamp=" + timestamp +
"&url=" + url;
MessageDigest crypt = MessageDigest.getInstance("SHA-1");
crypt.reset();
crypt.update(string1.getBytes("UTF-8"));
String signature = byteToHex(crypt.digest());
HashMap<String, String> jssdk = new HashMap<String, String>();
jssdk.put("appId", appid);
jssdk.put("timestamp", timestamp);
jssdk.put("nonceStr", noncestr);
jssdk.put("signature", signature);
return jssdk;
}
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;
}
4.获取微信临时素材
https://qyapi.weixin.qq.com/cgi-bin/media/get?access_token=access_token&media_id=mediaId
/**
* 获取微信临时素材
*
* @param mediaId
* @return
*/
public static InputStream downloadMedia(String access_token, String mediaId) {
URLConnection conn = null;
InputStream is = null;
BufferedInputStream bis = null;
String fileSize = "";
try {
String requestUrl = "https://qyapi.weixin.qq.com/cgi-bin/media/get?access_token="+access_token+"&media_id="+mediaId;
URL realUrl = new URL(requestUrl);
conn = realUrl.openConnection();
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded; charset=utf-8");
conn.setRequestProperty("Accept-Charset", "UTF-8"); //
conn.setRequestProperty("contentType", "utf-8");
//获取网络流的头部信息
Map<String, List<String>> maps = conn.getHeaderFields();
for (String key : maps.keySet()) {
System.out.println(key + "---> " + maps.get(key));
if ("Content-Length".equals(key)) {
fileSize = maps.get(key).get(0);//获取文件大小
}
}
// 获取网络流的内容
bis = new BufferedInputStream(conn.getInputStream());
byte[] data = getByte(bis); // 获取当前条目的字节数组
is = new ByteArrayInputStream(data); // 把当前条目的字节数据转换成Inputstream流
return is ;
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* 获取条目byte[]字节
*
* @param is
* @return
*/
public static byte[] getByte(InputStream is) {
try {
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] temp = new byte[1024];
byte[] buf = null;
int length = 0;
while ((length = is.read(temp, 0, 1024)) != -1) {
bout.write(temp, 0, length);
}
buf = bout.toByteArray();
bout.close();
return buf;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
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