# 响应 - 更改状态码

你可能之前已经了解到，你可以设置默认的[响应状态码](../tutorial/response-status-code.md){.internal-link target=_blank}。

但在某些情况下，你需要返回一个不同于默认值的状态码。

## 使用场景

例如，假设你想默认返回一个HTTP状态码为“OK”`200`。

但如果数据不存在，你想创建它，并返回一个HTTP状态码为“CREATED”`201`。

但你仍然希望能够使用`response_model`过滤和转换你返回的数据。

对于这些情况，你可以使用一个`Response`参数。

## 使用 `Response` 参数

你可以在你的*路径操作函数*中声明一个`Response`类型的参数（就像你可以为cookies和头部做的那样）。

然后你可以在这个*临时*响应对象中设置`status_code`。

//
// 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,

	unset CI

	args=()
	for i in $(seq 1 4); do
		args+=("http://localhost:$((start_port + i))${WORK_DIR}/mnt/disk$i/ ")
	done

	for i in $(seq 1 4); do
		"${MINIO[@]}" --address ":$((start_port + i))" ${args[@]} 2>&1 >"${WORK_DIR}/server$i.log" &
	done

	# Wait until all nodes return 403
	for i in $(seq 1 4); do
		while [ "$(curl -m 1 -s -o /dev/null -w "%{http_code}" http://localhost:$((start_port + i)))" -ne "403" ]; do
			echo -n "."

// 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.

 *
 * 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,

	"http://127.0.0.1:9006/tmp/multisitec/data/disterasure/xl{5...8}" >/tmp/sitec_1.log 2>&1 &
minio server --address 127.0.0.1:9006 "http://127.0.0.1:9005/tmp/multisitec/data/disterasure/xl{1...4}" \
	"http://127.0.0.1:9006/tmp/multisitec/data/disterasure/xl{5...8}" >/tmp/sitec_2.log 2>&1 &

export MC_HOST_sitea=http://minio:minio123@127.0.0.1:9001
export MC_HOST_siteb=http://minio:minio123@127.0.0.1:9004

//
// 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 cmd

import (
	"bytes"
	"encoding/xml"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/minio/minio/internal/auth"
)

// Test S3 Bucket lifecycle APIs with wrong credentials

//
// 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 grid provides single-connection two-way grid communication.
package grid

import (
	"context"
	"crypto/tls"
	"errors"
	"fmt"
	"io"
	"net"
	"net/http"
	"strconv"
	"strings"
	"time"

	"github.com/gobwas/ws"
	"github.com/gobwas/ws/wsutil"

By default, MinIO supports path-style requests that are of the format <http://mydomain.com/bucket/object>. `MINIO_DOMAIN` environment variable is used to enable virtual-host-style requests. If the request `Host` header matches with `(.+).mydomain.com` then the matched pattern `$1` is used as bucket and the path is used as object. Read more about path-style and virtual-host-style [here](http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAPI.html).

Example:

.Release.Namespace }} -l "release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}") 2. kubectl port-forward $POD_NAME 9000 --namespace {{ .Release.Namespace }} Read more about port forwarding here: http://kubernetes.io/docs/user-guide/kubectl/kubectl_port-forward/ You can now access Minio server on http://localhost:9000. Follow the below steps to connect to Minio server with mc client: 1. Download the Minio mc client - https://docs.minio.io/docs/minio-client-quickstart-guide 2. export ACCESS_KEY=$(kubectl...