Spring Login Verification Note distinguishes Login role

First, the Interceptor code.

import javax.annotation.resource;import javax.servlet.http.httpservletrequest;import  Javax.servlet.http.httpservletresponse;import org.slf4j.logger;import org.slf4j.loggerfactory;import  org.springframework.web.method.HandlerMethod;import  org.springframework.web.servlet.handler.handlerinterceptoradapter;import  com.tutor.normal.entity.tutoruser;import com.tutor.normal.service.itutoruserservice;import  com.tutor.normal.status.usertype;import com.tutor.tool.util.resultutil;public class  Tutorloginfilter extends handlerinterceptoradapter {    private static  logger log = loggerfactory.getlogger (Tutorloginfilter.class);          @Resource (name =  "Tutoruserservice")     private  itutoruserservice tutoruserservice;         @Override      publiC boolean prehandle (httpservletrequest request, httpservletresponse response,  Object handler)  throws exception {        log.info (Handler.getclass (). toString ());                 string token = request.getparameter ("token");                 TutorUser user = null;         try {             HandlerMethod method =  (Handlermethod)  handler;             TutorLoginAnnotation annotation =  Method.getmethodannotation (Tutorloginannotation.class);               &nbsP;         if (annotation == null)  {                 return true;             } else {                 user =  Tutoruserservice.validuser (Token, annotation.type (). GetValue ());                 log.info ("User user="  + user);             }                     } catch  (Exception e)  {            log.error (E.getMessage ());              response.setcontenttype ("Text/html;charset=utf-8");             response.getwriter (). Write (Resultutil.returnjson (e));             response.getwriter (). Flush ();             response.getwriter (). Close ();             return false;        }         return true;    }}

This is my note.

Package Com.tutor.normal.filter;import Java.lang.annotation.documented;import Java.lang.annotation.ElementType; Import Java.lang.annotation.retention;import Java.lang.annotation.retentionpolicy;import Java.lang.annotation.target;import Com.tutor.normal.status.UserType; @Documented @retention ( Retentionpolicy.runtime) @Target ({Elementtype.method}) public @interface tutorloginannotation {public usertype type () Default Usertype.all;}

This is an enumeration.

Package com.tutor.normal.status;public enum usertype {    student ("Student") ,  1),  teacher ("Teacher",  2),  all ("All",  0);     private string  name;    private int value;    private usertype ( String name, int value)  {        this.name =  name;        this.value = value;     }    public string getname ()  {         return name;    }    public void setname ( String name)  {        this.name = name;     }    public int getvalue ()  {         return Value;    }    public void setvalue (Int value)  {         this.value = value;    }}

Annotation usage

@TutorLoginAnnotation (type = usertype.teacher) @RequestMapping ("/tea/search/{v}") @ResponseBody public Resultbean Myfun () {...}

Finally, the configuration of the Interceptor in spring

<mvc:interceptors> <mvc:interceptor> <mvc:mapping path= "/stu/**"/> <mvc : Mapping path= "/tch/**"/> <mvc:mapping path= "/ord/**"/> <bean class= "Com.tutor.normal. Filter. Tutorloginfilter "/> </mvc:interceptor> </mvc:interceptors>

Spring Login Verification Note distinguishes Login role