/**
* 获取access_token
*
* @return
*/
public String getAccessToken() {
TokenDtoUnionId dtoUnionId = null;
String access_token = (String) servletContext.getAttribute("access_token");
Long createDate = (Long) servletContext.getAttribute("createDate");
Integer expires_in = (Integer) servletContext.getAttribute("expires_in");
if (createDate == null || expires_in == null || access_token == null) {
System.out.println("accessToken为空的！");
dtoUnionId = UserUtils.getAccessToken();
servletContext.setAttribute("access_token", dtoUnionId.getAccess_token());
servletContext.setAttribute("createDate", DateUtils.getTimeStamp());
servletContext.setAttribute("expires_in", dtoUnionId.getExpires_in());
} else {
long nowStamp = DateUtils.getTimeStamp();
long l = nowStamp - createDate;
System.out.println("时间是：" + l);
if (l > (expires_in - 1000)) {
System.out.println("accessToken已过期！");
dtoUnionId = UserUtils.getAccessToken();
servletContext.setAttribute("access_token", dtoUnionId.getAccess_token());
servletContext.setAttribute("createDate", DateUtils.getTimeStamp());
servletContext.setAttribute("expires_in", dtoUnionId.getExpires_in());
}
}
return dtoUnionId == null ? access_token : dtoUnionId.getAccess_token();
}
/**
* 生成签名并放在session里
*
* @param url
* @param state
* @param accessToken
*/
public void setSignatureToSession(String url, String state, String accessToken) {
System.out.println(url);
String signature = (String) request.getSession().getAttribute("signature" + state);
String timestamp = (String) request.getSession().getAttribute("timestamp" + state);
String nonceStr = (String) request.getSession().getAttribute("nonceStr" + state);
String ticket = (String) request.getSession().getAttribute("ticket" + state);
if (ticket == null) {
System.out.println("ticket is null");
ticket = UserUtils.getTicket(accessToken);
if (ticket == null) {
servletContext.removeAttribute("expires_in");
servletContext.removeAttribute("access_token");
String access_token = getAccessToken();
ticket = UserUtils.getTicket(access_token);
}
request.getSession().setAttribute("ticket" + state, ticket);
}
Map<String, Object> maps = GenerateSignature.getSignature(ticket, url);
nonceStr = (String) maps.get("nonceStr");
signature = (String) maps.get("signature");
timestamp = (String) maps.get("timestamp");
request.getSession().setAttribute("appId", UrlString.appId);
request.getSession().setAttribute("timestamp" + state, timestamp);
request.getSession().setAttribute("signature" + state, signature);
request.getSession().setAttribute("nonceStr" + state, nonceStr);
}