Solve the interception instance of the interceptor to Ajax request detailed _jquery

Resolves the interceptor's interception of Ajax requests

Interceptor Configuration:

 public boolean prehandle (HttpServletRequest request, httpservletresponse response, Object obj) throws Exception {//Get the decision to log whether the session exists a String token = (string) request.getsession (). getattribute
    ("token");
    String PostID = (string) request.getsession (). getattribute ("PostID");
      if (token = NULL | | token = = "") {String xrequested =request.getheader ("X-requested-with");
      if ("XMLHttpRequest". Equals (xrequested)) {response.getwriter (). Write ("Isajax");
      }else{response.sendredirect ("/m-web/user/tologin");
    return false;
      } if (PostID = null | | postid = = "") {String xrequested =request.getheader ("X-requested-with");
      if ("XMLHttpRequest". Equals (xrequested)) {response.getwriter (). Write ("Isajax");
      }else{response.sendredirect ("/m-web/user/tologin");
    return false;
  return true; }

1. Determine the value of String xrequested =request.getheader ("X-requested-with") to determine whether it is an AJAX request.

2, Response.getwriter (). Write ("Isajax"), write a response data to Ajax, so you can make judgments in Ajax

There are two ways of judging:

1 directly in the Ajax inside make judgments (not recommended)

Success:function (data) {
  if (data = = "Isajax") {
    window.location.href= "m-web/user/tologin" return
    ;
  }
}

2 to change the Ajax source code and then in the compression, is the overall way to modify (recommended)

if (issuccess) {//If no content
        if (status = = 204 | | | s.type = = "Head") {
          statustext = "nocontent";

        If not modified
        } else if (status = = 304) {
          statustext = "notmodified";

        If We have data, let ' s convert it
        } else {
          statustext = response.state;
          Success = Response.data;
          Error = Response.error;
          issuccess =!error;
          Solve the Ajax interception problem
          var result = Responses.text;
          if (Result.indexof ("Isajax") >=0) {
            window.location.href= "m-web/user/tologin";
            return;}}
      

Thank you for reading, I hope to help you, thank you for your support for this site!