本文整理了Java中java.security.Principal类的一些代码示例，展示了Principal类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Principal类的具体详情如下：
包路径：java.security.Principal
类名称：Principal

Principal介绍

[英]Principals are objects which have identities. These can be individuals, groups, corporations, unique program executions, etc.
[中]主体是具有身份的对象。这些可以是个人、团体、公司、独特的程序执行等。

代码示例

代码示例来源：origin: javaee-samples/javaee7-samples

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  response.getWriter().write("This is a public servlet \n");
  String webName = null;
  if (request.getUserPrincipal() != null) {
    webName = request.getUserPrincipal().getName();
  }
  response.getWriter().write("web username: " + webName + "\n");
  boolean webHasRole = request.isUserInRole("architect");
  response.getWriter().write("web user has role \"architect\": " + webHasRole + "\n");
}

代码示例来源：origin: square/okhttp

/** Returns true if {@code toVerify} was signed by {@code signingCert}'s public key. */
private boolean verifySignature(X509Certificate toVerify, X509Certificate signingCert) {
 if (!toVerify.getIssuerDN().equals(signingCert.getSubjectDN())) return false;
 try {
  toVerify.verify(signingCert.getPublicKey());
  return true;
 } catch (GeneralSecurityException verifyFailed) {
  return false;
 }
}

代码示例来源：origin: commonsguy/cw-omnibus

private SigModel(X509Certificate cert) {
  this.subject=cert.getSubjectDN().toString();
  this.issuer=cert.getIssuerDN().toString();
  this.validDates=
   FORMAT.format(cert.getNotBefore())+" to "+
    FORMAT.format(cert.getNotAfter());
 }
}

代码示例来源：origin: hugegraph/hugegraph

@GET
@Timed
@Produces(APPLICATION_JSON_WITH_CHARSET)
@RolesAllowed({"admin", "$dynamic"})
public Object list(@Context GraphManager manager,
          @Context SecurityContext sc) {
  Set<String> graphs = manager.graphs();
  String role = sc.getUserPrincipal().getName();
  if (role.equals("admin")) {
    return ImmutableMap.of("graphs", graphs);
  } else {
    // Filter by user role
    String graph = role;
    if (graphs.contains(graph)) {
      return ImmutableMap.of("graphs", ImmutableList.of(graph));
    } else {
      return ImmutableMap.of("graphs", ImmutableList.of());
    }
  }
}

代码示例来源：origin: apache/nifi

spaceAvailable.set(false);
    if (logger.isDebugEnabled()) {
      logger.debug("Received request from " + request.getRemoteHost() + " but no space available; Indicating Service Unavailable");
    response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
    return;
  } else {
response.setHeader("Content-Type", MediaType.TEXT_PLAIN);
final boolean contentGzipped = Boolean.parseBoolean(request.getHeader(GZIPPED_HEADER));
final X509Certificate[] certs = (X509Certificate[]) request.getAttribute("javax.servlet.request.X509Certificate");
foundSubject = DEFAULT_FOUND_SUBJECT;
if (certs != null && certs.length > 0) {
  for (final X509Certificate cert : certs) {
    foundSubject = cert.getSubjectDN().getName();
    if (authorizedPattern.matcher(foundSubject).matches()) {
      break;
    } else {
      logger.warn("Rejecting transfer attempt from " + foundSubject + " because the DN is not authorized, host=" + request.getRemoteHost());
      response.sendError(HttpServletResponse.SC_FORBIDDEN, "not allowed based on dn");
      return;

代码示例来源：origin: javaee-samples/javaee7-samples

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  response.getWriter().write("This is a public servlet \n");
  String webName = null;
  boolean isCustomPrincipal = false;
  if (request.getUserPrincipal() != null) {
    Principal principal = request.getUserPrincipal();
    isCustomPrincipal = principal instanceof MyPrincipal; 
    webName = principal.getName();
  }
  
  boolean webHasRole = request.isUserInRole("architect");
  response.getWriter().write("isCustomPrincipal: " + isCustomPrincipal + "\n");
  response.getWriter().write("web username: " + webName + "\n");
  response.getWriter().write("web user has role \"architect\": " + webHasRole + "\n");
  
  HttpSession session = request.getSession(false);
  if (session != null) {
    response.getWriter().write("Session ID: " + session.getId());
  } else {
    response.getWriter().write("No session");
  }
}

代码示例来源：origin: javaee-samples/javaee7-samples

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  response.getWriter().write("This is a public servlet \n");
  if (request.getUserPrincipal() != null) {
    webName = request.getUserPrincipal().getName();
  response.getWriter().write("before web username: " + webName + "\n");
  boolean webHasRole = request.isUserInRole("architect");
  response.getWriter().write("before web user has role \"architect\": " + webHasRole + "\n");
  if (request.getUserPrincipal() != null) {
    webName = request.getUserPrincipal().getName();

代码示例来源：origin: apereo/java-cas-client

public boolean logout(final HttpServletRequest request, final HttpServletResponse response)
      throws AuthenticatorException {
    final HttpSession session = request.getSession();
    final Principal p = (Principal) session.getAttribute(LOGGED_IN_KEY);

    LOGGER.debug("Logging out [{}] from CAS.", p.getName());

    session.setAttribute(LOGGED_OUT_KEY, p);
    session.setAttribute(LOGGED_IN_KEY, null);
    session.setAttribute(AbstractCasFilter.CONST_CAS_ASSERTION, null);
    return true;
  }
}

代码示例来源：origin: apache/nifi

@Override
protected void doDelete(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
  final X509Certificate[] certs = (X509Certificate[]) request.getAttribute("javax.servlet.request.X509Certificate");
  String foundSubject = DEFAULT_FOUND_SUBJECT;
  if (certs != null && certs.length > 0) {
    for (final X509Certificate cert : certs) {
      foundSubject = cert.getSubjectDN().getName();
      if (authorizedPattern.matcher(foundSubject).matches()) {
        break;
      } else {
        logger.warn(processor + " rejecting transfer attempt from " + foundSubject + " because the DN is not authorized");
        response.sendError(HttpServletResponse.SC_FORBIDDEN, "not allowed based on dn");
        return;
  final String uri = request.getRequestURI();
  final int slashIndex = uri.lastIndexOf("/");
  int questionIndex = uri.indexOf("?");
    session.commit();
    response.setStatus(HttpServletResponse.SC_OK);
    response.flushBuffer();
  } catch (final Throwable t) {

代码示例来源：origin: openanalytics/shinyproxy

protected String getUserName(HttpServletRequest request) {
  Principal principal = request.getUserPrincipal();
  String username = (principal == null) ? request.getSession().getId() : principal.getName();
  return username;
}

代码示例来源：origin: awslabs/aws-serverless-java-container

AwsProxyRequest req = (AwsProxyRequest)servletRequest.getAttribute(API_GATEWAY_EVENT_PROPERTY);
AwsProxyRequestContext gatewayContext = req.getRequestContext();
logLineBuilder.append(servletRequest.getRemoteAddr());
logLineBuilder.append(" ");
if (ctx != null && ctx.getUserPrincipal().getName() != null) {
  logLineBuilder.append(ctx.getUserPrincipal().getName());
  logLineBuilder.append(" ");
logLineBuilder.append(servletRequest.getMethod().toUpperCase(Locale.ENGLISH));
logLineBuilder.append(" ");
logLineBuilder.append(servletRequest.getRequestURI());
logLineBuilder.append(servletResponse.getStatus());
logLineBuilder.append(" ");

代码示例来源：origin: javaee-samples/javaee7-samples

if (request.getUserPrincipal() != null) {
  webName = request.getUserPrincipal().getName();
request.logout();
HttpSession session = request.getSession(false);
if (session != null) {
  session.invalidate();
if (request.getUserPrincipal() != null) {
  webNameAfterLogout = request.getUserPrincipal().getName();
response.getWriter().write("web username: " + webName + "\n" + "EJB username: " + ejbName + "\n");
response.getWriter().write("web username after logout: " + webNameAfterLogout + "\n" + "EJB username after logout: " + ejbNameAfterLogout + "\n");

代码示例来源：origin: neo4j/neo4j

@GET
@Path( "/{username}" )
public Response getUser( @PathParam( "username" ) String username, @Context HttpServletRequest req )
{
  Principal principal = req.getUserPrincipal();
  if ( principal == null || !principal.getName().equals( username ) )
  {
    return output.notFound();
  }
  LoginContext loginContext = getLoginContextFromUserPrincipal( principal );
  UserManager userManager = userManagerSupplier.getUserManager( loginContext.subject(), false );
  try
  {
    User user = userManager.getUser( username );
    return output.ok( new AuthorizationRepresentation( user ) );
  }
  catch ( InvalidArgumentsException e )
  {
    return output.notFound();
  }
}

代码示例来源：origin: apache/storm

public void handle(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
  if (request != null) {
    LOG.info("Access from: {} url: {} principal: {}", request.getRemoteAddr(), request.getRequestURL(),
         (request.getUserPrincipal() == null ? "" : request.getUserPrincipal().getName()));
  }
  chain.doFilter(request, response);
}

代码示例来源：origin: apache/storm

public TUGIAssumingTransportFactory(TTransportFactory wrapped, Subject subject) {
  this.wrapped = wrapped;
  this.subject = subject;
  Set<Principal> principals = (Set<Principal>) subject.getPrincipals();
  if (principals.size() > 0) {
    LOG.info("Service principal:" + ((Principal) (principals.toArray()[0])).getName());
  }
}

代码示例来源：origin: javaee-samples/javaee7-samples

@Override
public String greet(String name) {
  try {
    System.out.println("context path (HttpServletRequest): " + httpServletRequest.getContextPath());
    System.out.println("session id: " + httpSession.getId());
    System.out.println("context path (ServletContext): " + servletContext.getContextPath());
    System.out.println("user transaction status: " + ut.getStatus());
    System.out.println("security principal: " + principal.getName());
  } catch (SystemException ex) {
    Logger.getLogger(SimpleGreeting.class.getName()).log(Level.SEVERE, null, ex);
  }
  return "Hello " + name;
}

代码示例来源：origin: com.atlassian.seraph/atlassian-seraph

/**
 * This is called to determine if the Principal is already in the HttpSession in a Seraph ready manner.
 *
 * @param httpServletRequest the request in play
 * @param principal          the principal to put in the session
 * @return true if the principal is already in the session
 */
protected boolean isPrincipalAlreadyInSessionContext(final HttpServletRequest httpServletRequest, final Principal principal)
{
  Principal currentPrincipal = (Principal) httpServletRequest.getSession().getAttribute(LOGGED_IN_KEY);
  return currentPrincipal != null && currentPrincipal.getName() != null && principal != null && currentPrincipal.getName().equals(principal.getName());
}

代码示例来源：origin: apache/activemq

protected String getDistinguishedName(final X509Certificate[] certs) {
  if (certs != null && certs.length > 0 && certs[0] != null) {
    return certs[0].getSubjectDN().getName();
  } else {
    return null;
  }
}

代码示例来源：origin: stackoverflow.com

Principal principal = securityContext.getUserPrincipal();
String username = principal.getName();

代码示例来源：origin: dremio/dremio-oss

@POST
@Produces(APPLICATION_JSON)
public SupportResponse submit(@PathParam("jobId") JobId jobId) throws IOException, UserNotFoundException {
 return supportService.uploadSupportRequest(context.getUserPrincipal().getName(), jobId);
}