@Override
protected void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
response.setStatus(HttpServletResponse.SC_OK);
String code = request.getParameter("code");
try {
response.getWriter().println("<h1>code</h1>");
response.getWriter().println(code);
WxMpOAuth2AccessToken wxMpOAuth2AccessToken = this.wxMpService.oauth2getAccessToken(code);
response.getWriter().println("<h1>access token</h1>");
response.getWriter().println(wxMpOAuth2AccessToken.toString());
WxMpUser wxMpUser = this.wxMpService.oauth2getUserInfo(wxMpOAuth2AccessToken, null);
response.getWriter().println("<h1>user info</h1>");
response.getWriter().println(wxMpUser.toString());
wxMpOAuth2AccessToken =
this.wxMpService.oauth2refreshAccessToken(wxMpOAuth2AccessToken.getRefreshToken());
response.getWriter().println("<h1>after refresh</h1>");
response.getWriter().println(wxMpOAuth2AccessToken.toString());
} catch (WxErrorException e) {
e.printStackTrace();
}
response.getWriter().flush();
response.getWriter().close();
}