apisix/docs/zh/latest/plugins/proxy-rewrite.md

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---
title: proxy-rewrite
---
2019-10-31 09:27:28 +08:00
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## 目录
- [简介](#简介)
- [属性](#属性)
- [如何启用](#如何启用)
- [测试插件](#测试插件)
- [禁用插件](#禁用插件)
## 简介
proxy-rewrite 是上游代理信息重写插件,支持对 `scheme`、`uri`、`host` 等信息的重写。
## 属性
| Name | Type | Requirement | Default | Valid | Description |
| --------- | ------------- | ----------- | ------- | ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| scheme | string | 可选 | "http" | ["http", "https"] | 不推荐使用。应该在 Upstream 的 scheme 字段设置上游的 scheme。
| uri | string | 可选 | | | 转发到上游的新 `uri` 地址。 |
| regex_uri | array[string] | 可选 | | | 转发到上游的新 `uri` 地址, 使用正则表达式匹配来自客户端的uri当匹配成功后使用模板替换转发到上游的uri, 未匹配成功时将客户端请求的uri转发至上游。当`uri`和`regex_uri`同时存在时,`uri`优先被使用。例如:["^/iresty/(.*)/(.*)/(.*)","/$1-$2-$3"] 第一个元素代表匹配来自客户端请求的uri正则表达式第二个元素代表匹配成功后转发到上游的uri模板。 |
| host | string | 可选 | | | 转发到上游的新 `host` 地址,例如:`iresty.com` 。 |
| headers | object | 可选 | | | 转发到上游的新`headers`,可以设置多个。头信息如果存在将重写,不存在则添加。想要删除某个 header 的话,把对应的值设置为空字符串即可。支持使用 Nginx 的变量,需要以 `$` 开头,如 `client_addr: $remote_addr` :表示请求头 `client_addr` 为客户端IP。 |
## 如何启用
下面是一个示例,在指定的 route 上开启了 `proxy-rewrite` 插件:
```shell
curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"methods": ["GET"],
"uri": "/test/index.html",
"plugins": {
"proxy-rewrite": {
"uri": "/test/home.html",
"scheme": "http",
"host": "iresty.com",
"headers": {
"X-Api-Version": "v1",
"X-Api-Engine": "apisix",
"X-Api-useless": ""
}
}
},
"upstream": {
"type": "roundrobin",
"nodes": {
"127.0.0.1:80": 1
}
}
}'
```
## 测试插件
基于上述配置进行测试:
```shell
curl -X GET http://127.0.0.1:9080/test/index.html
```
发送请求,查看上游服务`access.log`,如果输出信息与配置一致:
```
127.0.0.1 - [26/Sep/2019:10:52:20 +0800] iresty.com GET /test/home.html HTTP/1.1 200 38 - curl/7.29.0 - 0.000 199 107
```
即表示 `proxy-rewrite` 插件生效了。
## 禁用插件
当你想去掉 `proxy-rewrite` 插件的时候,很简单,在插件的配置中把对应的 json 配置删除即可,无须重启服务,即刻生效:
```shell
curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"methods": ["GET"],
"uri": "/test/index.html",
"plugins": {},
"upstream": {
"type": "roundrobin",
"nodes": {
"127.0.0.1:80": 1
}
}
}'
```
现在就已经移除了 `proxy-rewrite` 插件了。其他插件的开启和移除也是同样的方法。