///

### 创建一个路径操作进行测试 { #create-a-path-operation-to-test-it }

现在，为了测试一切是否正常，创建一个*路径操作*：

{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[36:38] *}

### 测试 { #test-it }

现在，你应该可以访问 [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs)，并刷新页面，页面会从新的 CDN 加载这些资源。

## 为文档自托管 JavaScript 和 CSS { #self-hosting-javascript-and-css-for-docs }

如果你需要在离线、无法访问互联网或仅在局域网内时，应用仍能工作，那么自托管 JavaScript 和 CSS 会很有用。

from starlette.exceptions import HTTPException as StarletteHTTPException

app = FastAPI()


@app.exception_handler(StarletteHTTPException)
async def custom_http_exception_handler(request, exc):
    print(f"OMG! An HTTP error!: {repr(exc)}")
    return await http_exception_handler(request, exc)


@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request, exc):

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package http

import (
	"context"
	"net"
	"time"
)

// LookupHost is a function to make custom lookupHost for optional cached DNS requests

为此，要再创建一个依赖项 `get_current_active_user`，此依赖项以 `get_current_user` 依赖项为基础。

如果用户不存在，或状态为未激活，这两个依赖项都会返回 HTTP 错误。

因此，在端点中，只有当用户存在、通过身份验证、且状态为激活时，才能获得该用户：

{* ../../docs_src/security/tutorial003_an_py310.py hl[58:66,69:74,94] *}

/// info | 信息

此处返回值为 `Bearer` 的响应头 `WWW-Authenticate` 也是规范的一部分。

任何 401“UNAUTHORIZED”HTTP（错误）状态码都应返回 `WWW-Authenticate` 响应头。

本例中，因为使用的是 Bearer Token，该响应头的值应为 `Bearer`。

 * Copyright (C) 2012 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

 * Copyright (C) 2013 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package http

import (
	"context"
	"net"
	"time"
)

// CheckPortAvailability - check if given host and port is already in use.
// Note: The check method tries to listen on given port and closes it.

fi
if [ "x$FESS_PROXY_PORT" != "x" ]; then
  FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dhttp.proxyPort=$FESS_PROXY_PORT"
  FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dhttps.proxyPort=$FESS_PROXY_PORT"
fi
# http.nonProxyHosts applies to both HTTP and HTTPS connections.
# There is no https.nonProxyHosts property in Java.
if [ "x$FESS_NON_PROXY_HOSTS" != "x" ]; then
  FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dhttp.nonProxyHosts=$FESS_NON_PROXY_HOSTS"
fi

///

### Check the docs { #check-the-docs }

Now you can start your app and go to [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

You will see your docs including a "Callbacks" section for your *path operation* that shows how the *external API* should look like:

            @Override
            protected String getUserCodeFromRequest(final jakarta.servlet.http.HttpServletRequest request) {
                return null;
            }

            @Override
            protected String getUserCodeFromCookie(final jakarta.servlet.http.HttpServletRequest request) {
                return "12345abcde12345ABCDE";
            }

            @Override