Spring-boot结合Shrio实现JWT的方法

 <!-- shiro 权限管理 -->
  <dependency>
    <groupid>org.apache.shiro</groupid>
    <artifactid>shiro-spring</artifactid>
    <version>${shiro.version}</version>
  </dependency>
  <dependency>
    <groupid>org.apache.shiro</groupid>
    <artifactid>shiro-core</artifactid>
    <version>${shiro.version}</version>
  </dependency>
 <!-- jwt -->
   <dependency>
    <groupid>io.jsonwebtoken</groupid>
    <artifactid>jjwt</artifactid>
    <version>0.9.0</version>
  </dependency>

filtermap.put("jwtfilter", new jwtfilter());

@configuration
public class shiroconfig {
  @bean
  public shirofilterfactorybean getshirofilterfactorybean(securitymanager securitymanager) {
    shirofilterfactorybean shirofilterfactorybean = new shirofilterfactorybean();
    shirofilterfactorybean.setsecuritymanager(securitymanager);
    // 添加自己的过滤器并且取名为jwtfilter
    map<string, filter> filtermap = new hashmap<>();
    filtermap.put("jwtfilter", new jwtfilter());
    shirofilterfactorybean.setfilters(filtermap);
    /*
     * 自定义url规则
     * http://shiro.apache.org/web.html#urls-
     */
    map<string, string> filterchaindefinitionmap = shirofilterfactorybean.getfilterchaindefinitionmap();
    filterchaindefinitionmap.put("/**", "jwtfilter");
    shirofilterfactorybean.setfilterchaindefinitionmap(filterchaindefinitionmap);
    return shirofilterfactorybean;
  }


  /**
   * securitymanager 不用直接注入shirodbrealm，可能会导致事务失效
   * 解决方法见 handlecontextrefresh
   * http://www.debugrun.com/a/nks9ejq.html
   */
  @bean("securitymanager")
  public defaultwebsecuritymanager securitymanager(tokenrealm tokenrealm) {
    defaultwebsecuritymanager manager = new defaultwebsecuritymanager();
    manager.setrealm(tokenrealm);
    /*
     * 关闭shiro自带的session，详情见文档
     * http://shiro.apache.org/session-management.html#sessionmanagement-statelessapplications%28sessionless%29
     */
    defaultsubjectdao subjectdao = new defaultsubjectdao();
    defaultsessionstorageevaluator defaultsessionstorageevaluator = new defaultsessionstorageevaluator();
    defaultsessionstorageevaluator.setsessionstorageenabled(false);
    subjectdao.setsessionstorageevaluator(defaultsessionstorageevaluator);
    manager.setsubjectdao(subjectdao);
    return manager;
  }

  @bean
  public lifecyclebeanpostprocessor lifecyclebeanpostprocessor() {
    return new lifecyclebeanpostprocessor();
  }

  @bean(name = "tokenrealm")
  @dependson("lifecyclebeanpostprocessor")
  public tokenrealm tokenrealm() {
    return new tokenrealm();
  }

  @bean
  @dependson("lifecyclebeanpostprocessor")
  public defaultadvisorautoproxycreator defaultadvisorautoproxycreator() {
    defaultadvisorautoproxycreator defaultadvisorautoproxycreator = new defaultadvisorautoproxycreator();
    // 强制使用cglib，防止重复代理和可能引起代理出错的问题
    // https://zhuanlan.zhihu.com/p/29161098
    defaultadvisorautoproxycreator.setproxytargetclass(true);
    return defaultadvisorautoproxycreator;
  }

  @bean
  public authorizationattributesourceadvisor getauthorizationattributesourceadvisor(securitymanager securitymanager) {
    authorizationattributesourceadvisor authorizationattributesourceadvisor = new authorizationattributesourceadvisor();
    authorizationattributesourceadvisor.setsecuritymanager(securitymanager);
    return new authorizationattributesourceadvisor();
  }
}

public class jwtfilter extends basichttpauthenticationfilter {
  /**
   * 自定义执行登录的方法
   */
  @override
  protected boolean executelogin(servletrequest request, servletresponse response) throws ioexception {
    httpservletrequest httpservletrequest = (httpservletrequest) request;
    usernamepasswordtoken usernamepasswordtoken = json.parseobject(httpservletrequest.getinputstream(), usernamepasswordtoken.class);
    // 提交给realm进行登入，如果错误他会抛出异常并被捕获
    subject subject = this.getsubject(request, response);
    subject.login(usernamepasswordtoken);
    return this.onloginsuccess(usernamepasswordtoken, subject, request, response);
    //错误抛出异常
  }

  /**
   * 最先执行的方法
   */
  @override
  protected boolean prehandle(servletrequest request, servletresponse response) throws exception {
    return super.prehandle(request, response);
  }

  /**
   * 登录成功后登录的操作
   * 加上jwt 的header
   */
  @override
  protected boolean onloginsuccess(authenticationtoken token, subject subject, servletrequest request, servletresponse response) {
    httpservletresponse httpservletresponse = (httpservletresponse) response;
    string jwttoken = jwts.builder()
        .setid(token.getprincipal().tostring())
        .setexpiration(datetime.now().plusminutes(30).todate())
        .signwith(signaturealgorithm.hs256, jwtcost.signaturekey)
        .compact();
    httpservletresponse.addheader(authorization_header, jwttoken);
    return true;
  }

  /**
   * 登录以及校验的主要流程
   * 判断是否是登录，或者是登陆后普通的一次请求
   */
  @override
  public void dofilterinternal(servletrequest servletrequest, servletresponse servletresponse, filterchain filterchain) throws ioexception, servletexception {
    httpservletrequest httpservletrequest = (httpservletrequest) servletrequest;
    httpservletresponse httpservletresponse = (httpservletresponse) servletresponse;
    string servletpath = httpservletrequest.getservletpath();
    if (stringutils.equals(servletpath, "/login")) {
      //执行登录
      this.executelogin(servletrequest, servletresponse);
    } else {
      string authenticationheader = httpservletrequest.getheader(authorization_header);
      if (stringutils.isnotempty(authenticationheader)) {

        claims body = jwts.parser()
            .setsigningkey(jwtcost.signaturekey)
            .parseclaimsjws(authenticationheader)
            .getbody();
        if (body != null) {
          //更新token
          body.setexpiration(datetime.now().plusminutes(30).todate());
          string updatetoken = jwts.builder().setclaims(body).compact();
          httpservletresponse.addheader(authorization_header, updatetoken);

          //添加用户凭证
          principalcollection principals = new simpleprincipalcollection(body.getid(), jwtcost.usernamepasswordrealm);//拼装shiro用户信息
          websubject.builder builder = new websubject.builder(servletrequest, servletresponse);
          builder.principals(principals);
          builder.authenticated(true);
          builder.sessioncreationenabled(false);
          websubject subject = builder.buildwebsubject();
          //塞入容器，统一调用
          threadcontext.bind(subject);
          filterchain.dofilter(httpservletrequest, httpservletresponse);
        }
      } else {
        httpservletresponse.setstatus(httpstatus.forbidden.value());
      }
    }
  }
}

@restcontrolleradvice
public class globalcontrollerexceptionhandler {
  @exceptionhandler(value = exception.class)
  public object allexceptionhandler(httpservletrequest request, httpservletresponse response, exception exception) {
    string message = exception.getcause().getmessage();
    logutil.error(message);
    return new resultinfo(exception.getclass().getname(), message);
  }

  /*=========== shiro 异常拦截==============*/

  @exceptionhandler(value = incorrectcredentialsexception.class)
  public string incorrectcredentialsexception(httpservletrequest request, httpservletresponse response, exception exception) {
    response.setstatus(httpstatus.forbidden.value());
    return "incorrectcredentialsexception";
  }

  @exceptionhandler(value = unknownaccountexception.class)
  public string unknownaccountexception(httpservletrequest request, httpservletresponse response, exception exception) {
    response.setstatus(httpstatus.forbidden.value());
    return "unknownaccountexception";
  }

  @exceptionhandler(value = lockedaccountexception.class)
  public string lockedaccountexception(httpservletrequest request, httpservletresponse response, exception exception) {
    response.setstatus(httpstatus.forbidden.value());
    return "lockedaccountexception";
  }

  @exceptionhandler(value = excessiveattemptsexception.class)
  public string excessiveattemptsexception(httpservletrequest request, httpservletresponse response, exception exception) {
    response.setstatus(httpstatus.forbidden.value());
    return "excessiveattemptsexception";
  }

  @exceptionhandler(value = authenticationexception.class)
  public string authenticationexception(httpservletrequest request, httpservletresponse response, exception exception) {
    response.setstatus(httpstatus.forbidden.value());
    return "authenticationexception";
  }

  @exceptionhandler(value = unauthorizedexception.class)
  public string unauthorizedexception(httpservletrequest request, httpservletresponse response, exception exception) {
    response.setstatus(httpstatus.forbidden.value());
    return "unauthorizedexception";
  }
}

/**
 * 截获spring boot error页面
 */
@restcontroller
public class globalexceptionhandler implements errorcontroller {
  @override
  public string geterrorpath() {
    return "/error";
  }

  @requestmapping(value = "/error")
  public object error(httpservletrequest request, httpservletresponse response) throws exception {
    // 错误处理逻辑
    exception exception = (exception) request.getattribute("javax.servlet.error.exception");
    throwable cause = exception.getcause();
    if (cause instanceof expiredjwtexception) {
      response.setstatus(httpstatus.gateway_timeout.value());
      return new resultinfo("expiredjwtexception", cause.getmessage());
    }
    if (cause instanceof malformedjwtexception) {
      response.setstatus(httpstatus.forbidden.value());
      return new resultinfo("malformedjwtexception", cause.getmessage());
    }
    return new resultinfo(cause.getcause().getmessage(), cause.getmessage());
  }
}