微服務(wù)spring cloud gateway 路由參數(shù)和過濾策略配置(yaml和json格...
gateway 配置文件
[{
"id": "service-consumer",
"order": 1,
"predicates": [{
"args": {
"pattern": "/consumer/**"
},
"name": "Path"
}],
"filters":[{
"args":{
"_genkey_0": "1"
},
"name":"StripPrefix"
}],
"uri": "lb://service-consumer"
},{
"id": "service-provider",
"order": 1,
"predicates": [{
"args": {
"pattern": "/provider/**"
},
"name": "Path"
}],
"filters":[{
"args":{
"_genkey_0": "1"
},
"name":"StripPrefix"
}],
"uri": "lb://service-provider"
}]
spring cloud gateway主要通過配置來實(shí)現(xiàn)其功能的，所以參數(shù)配置內(nèi)容比較多，而且比較復(fù)雜，這里對(duì)常用的一些配置做一個(gè)整理和記錄。
1. 斷言Predicates
Predicates主要起的作用是：配置路由匹配請(qǐng)求的規(guī)則。
路由規(guī)則可以單獨(dú)使用，也可以組合使用。
1.1?Path
配置對(duì)于請(qǐng)求路徑的匹配規(guī)則，根據(jù)請(qǐng)求路徑判斷是否符合路由規(guī)則。
# yml配置，多個(gè)參數(shù)用逗號(hào)隔開
- Path = /aa/**,/bb/**
# json配置
{"name":"Path","args":{"pattern":"/aa/**","pattern1":"/bb/**"}}
1.2?Cookie
配置對(duì)Cookie中值的匹配，第一個(gè)為key，第二個(gè)為value。
yml配置
- Cookie = chocolate,ch.p
json配置
{"name":"Cookie","args":{"_genkey_0":"chocolate","_genkey_1":"ch.p"}}
1.3 Header
匹配Http請(qǐng)求中設(shè)置的內(nèi)容，http-header設(shè)置X-Request-Id:\d+可以匹配，第二個(gè)參數(shù)第二個(gè)參數(shù)是正則表達(dá)式
yml配置
- Header = X-Request-Id,\d+
json配置
{"name":"Header","args":{"_genkey_0":"X-Request-Id","_genkey_1":"\d+"}}
1.4 Host
匹配Http請(qǐng)求Host，匹配所有host為**.wanglei.com的請(qǐng)求
yml配置
- Host = **.wanglei.com
json配置
{"name":"Host","args":{"_genkey_0":"**.wanglei.com"}}
1.5 Method
匹配Http請(qǐng)求方法
yml配置
- Method = GET
json配置
{"name":"Method","args":{"_genkey_0":"GET"}}
1.6 Query
匹配Http請(qǐng)求中的查詢參數(shù)，請(qǐng)求中攜帶param1=value的請(qǐng)求可以匹配
yml配置
- Query = param1,value
json配置
{"name":"Query","args":{"_genkey_0":"param1","_genkey_1":"value"}}
1.6?RemoteAddr
匹配請(qǐng)求中的RemoteAddr
yml配置
- RemoteAddr = 192.168.1.1/24
json配置
{"name":"RemoteAddr","args":{"_genkey_0":"192.168.1.1/24"}}
1.7?After
設(shè)置時(shí)間之后可以訪問
yml配置
- After = 2017-01-20T17:42:47.789+08:00[Asia/Shanghai]
1
json配置
{"name":"After","args":{"_genkey_0":"2017-01-20T17:42:47.789+08:00[Asia/Shanghai]"}}
1.8 Before
設(shè)置時(shí)間之前可以訪問
yml配置
- Before = 2017-01-20T17:42:47.789+08:00[Asia/Shanghai]
json配置
{"name":"Before","args":{"_genkey_0":"2017-01-20T17:42:47.789+08:00[Asia/Shanghai]"}
1.9?Between
設(shè)置時(shí)間段內(nèi)可以訪問
yml配置
- Between = 2017-01-20T17:42:47.789+08:00[Asia/Shanghai],2017-01-21T17:42:47.789+08:00[Asia/Shanghai]
json配置
{"name":"Between","args":{"_genkey_0":"2017-01-20T17:42:47.789+08:00[Asia/Shanghai]"，"_genkey_1":"2017-01-21T17:42:47.789+08:00[Asia/Shanghai]"}}
1.10 權(quán)重路由
至少兩組以上路由可以配置權(quán)重路由，配置后會(huì)根據(jù)權(quán)重隨機(jī)訪問幾個(gè)路由
yml配置
- Weight = service1,80
json配置
{"name":"Weight","args":{"_genkey_0":"service1","_genkey_1":"80"}}
2. Filters
過濾器實(shí)現(xiàn)對(duì)請(qǐng)求的過濾處理。
2.1 路徑重寫
yml配置
- RewritePath = /path/(?<segment>.*), /$\{segment}
json配置
{"name":"RewritePath","args":{"_genkey_0":"/foo/(?<segment>.*)","_genkey_1":"/$\\{segment}"}}
2.2 添加請(qǐng)求頭
yml配置
- AddRequestHeader = X-Request-Foo,Bar
json配置
{"name":"AddRequestHeader","args":{"_genkey_0":"X-Request-Foo","_genkey_1":"Bar"}}
2.3 添加請(qǐng)求參數(shù)
yml配置
- AddRequestParameter = foo,bar
json配置
{"name":"AddRequestParameter","args":{"_genkey_0":"foo","_genkey_1":"bar"}}
2.4 添加響應(yīng)參數(shù)
yml配置
- AddResponseHeader = X-Request-Foo,Bar
json配置
{"name":"AddResponseHeader","args":{"_genkey_0":"X-Request-Foo","_genkey_1":"Bar"}}
2.5?路徑前綴增強(qiáng)（添加路徑）
請(qǐng)求路徑/hello, 將會(huì)被替換為 /echo/hello
yml配置
- PrefixPath = /echo
json配置
{"name":"PrefixPath","args":{"_genkey_0":"/echo"}}
2.6?路徑前綴刪除
請(qǐng)求/api/echo/wl，去除掉前面兩個(gè)前綴之后，最后轉(zhuǎn)發(fā)到目標(biāo)服務(wù)的路徑為/wl
yml配置
- StripPrefix = 2
json配置
{"name":"StripPrefix","args":{"_genkey_0":"2"}}
2.7?請(qǐng)求攜帶保留原始Host
yml配置
- PreserveHostHeader
json配置
{"name":"PreserveHostHeader","args":{}}
2.8?重定向
yml配置
- RedirectTo = 302,http://wanglei.org
json配置
{"name":"RedirectTo","args":{"_genkey_0":"302","_genkey_1":"http://wanglei.org"}}
2.9?斷路器
yml配置
- name: Hystrix
args:
# 斷路后跳轉(zhuǎn)地址
name: echo
??????fallbackUri:?forward:/echo
json配置
{"name":"Hystrix","args":{"name":"echo","fallbackUri":"forward:/echo"}}
2.10?集成Redis原生支持請(qǐng)求限流
yml配置
- name: RequestRateLimiter
args:
redis-rate-limiter.replenishRate: 10
redis-rate-limiter.burstCapacity: 20
json配置
{"name":"RequestRateLimiter","args":{"redis-rate-limiter.replenishRate":"10","redis-rate-limiter.burstCapacity":"20"}}
2.11?刪除請(qǐng)求頭屬性
yml配置
- RemoveRequestHeader = X-Request-echo
json配置
{"name":"RemoveRequestHeader","args":{"_genkey_0":"X-Request-echo"}}
2.12?刪除響應(yīng)頭屬性
yml配置
- RemoveResponseHeader = X-Request-echo
json配置
{"name":"RemoveResponseHeader","args":{"_genkey_0":"X-Request-echo"}}
2.13?重寫響應(yīng)頭
將請(qǐng)求 /888?user=ford&password=omg!what&flag=true, 改為 /888?user=ford&password=***&flag=true
yml配置
- RewriteResponseHeader = X-Response-Foo,password=[^&]+,password=***
json配置
{"name":"RewriteResponseHeader","args":{"_genkey_0":"X-Response-Foo","_genkey_1":"password=[^&]+","_genkey_2":"password=***"}}
2.14?重設(shè)請(qǐng)求路徑
請(qǐng)求/echo/aa，在接下來的處理中被改為/aa
yml配置
- SetPath =/{segment}
json配置
{"name":"SetPath","args":{"_genkey_0":"/{segment}"}}
2.15 設(shè)置響應(yīng)頭
在接下來的處理中修改響應(yīng)頭X-Response-Foo為Bar
yml配置
- SetResponseHeader =X-Request-Foo,Bar
json配置
{"name":"SetResponseHeader","args":{"_genkey_0":"X-Response-Foo","_genkey_1":"Bar"}}
2.16 設(shè)置Http狀態(tài)
yml配置
- name: SetStatus
args:
status: 401
json配置
{"name":"SetStatus","args":{"_genkey_0":"302"}}
2.17 設(shè)置文件傳輸大小
yml配置
- name: RequestSize
args:
maxSize: 5000000
json配置
{"name":"RequestSize","args":{"_genkey_0":"5000000"}}
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