微服务spring cloud gateway 路由参数和过滤策略配置(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主要通过配置来实现其功能的,所以参数配置内容比较多,而且比较复杂,这里对常用的一些配置做一个整理和记录。
1. 断言Predicates
Predicates主要起的作用是:配置路由匹配请求的规则。
路由规则可以单独使用,也可以组合使用。
1.1 Path
配置对于请求路径的匹配规则,根据请求路径判断是否符合路由规则。
# yml配置,多个参数用逗号隔开
- Path = /aa/**,/bb/**
# json配置
{"name":"Path","args":{"pattern":"/aa/**","pattern1":"/bb/**"}}
1.2 Cookie
配置对Cookie中值的匹配,第一个为key,第二个为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请求中设置的内容,http-header设置X-Request-Id:\d+可以匹配,第二个参数第二个参数是正则表达式
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请求Host,匹配所有host为**.wanglei.com的请求
yml配置
- Host = **.wanglei.com
json配置
{"name":"Host","args":{"_genkey_0":"**.wanglei.com"}}
1.5 Method
匹配Http请求方法
yml配置
- Method = GET
json配置
{"name":"Method","args":{"_genkey_0":"GET"}}
1.6 Query
匹配Http请求中的查询参数,请求中携带param1=value的请求可以匹配
yml配置
- Query = param1,value
json配置
{"name":"Query","args":{"_genkey_0":"param1","_genkey_1":"value"}}
1.6 RemoteAddr
匹配请求中的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
设置时间之后可以访问
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
设置时间之前可以访问
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
设置时间段内可以访问
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 权重路由
至少两组以上路由可以配置权重路由,配置后会根据权重随机访问几个路由
yml配置
- Weight = service1,80
json配置
{"name":"Weight","args":{"_genkey_0":"service1","_genkey_1":"80"}}
2. Filters
过滤器实现对请求的过滤处理。
2.1 路径重写
yml配置
- RewritePath = /path/(?<segment>.*), /$\{segment}
json配置
{"name":"RewritePath","args":{"_genkey_0":"/foo/(?<segment>.*)","_genkey_1":"/$\\{segment}"}}
2.2 添加请求头
yml配置
- AddRequestHeader = X-Request-Foo,Bar
json配置
{"name":"AddRequestHeader","args":{"_genkey_0":"X-Request-Foo","_genkey_1":"Bar"}}
2.3 添加请求参数
yml配置
- AddRequestParameter = foo,bar
json配置
{"name":"AddRequestParameter","args":{"_genkey_0":"foo","_genkey_1":"bar"}}
2.4 添加响应参数
yml配置
- AddResponseHeader = X-Request-Foo,Bar
json配置
{"name":"AddResponseHeader","args":{"_genkey_0":"X-Request-Foo","_genkey_1":"Bar"}}
2.5 路径前缀增强(添加路径)
请求路径/hello, 将会被替换为 /echo/hello
yml配置
- PrefixPath = /echo
json配置
{"name":"PrefixPath","args":{"_genkey_0":"/echo"}}
2.6 路径前缀删除
请求/api/echo/wl,去除掉前面两个前缀之后,最后转发到目标服务的路径为/wl
yml配置
- StripPrefix = 2
json配置
{"name":"StripPrefix","args":{"_genkey_0":"2"}}
2.7 请求携带保留原始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 断路器
yml配置
- name: Hystrix
args:
# 断路后跳转地址
name: echo
fallbackUri: forward:/echo
json配置
{"name":"Hystrix","args":{"name":"echo","fallbackUri":"forward:/echo"}}
2.10 集成Redis原生支持请求限流
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 删除请求头属性
yml配置
- RemoveRequestHeader = X-Request-echo
json配置
{"name":"RemoveRequestHeader","args":{"_genkey_0":"X-Request-echo"}}
2.12 删除响应头属性
yml配置
- RemoveResponseHeader = X-Request-echo
json配置
{"name":"RemoveResponseHeader","args":{"_genkey_0":"X-Request-echo"}}
2.13 重写响应头
将请求 /888?user=ford&password=omg!what&flag=true, 改为 /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 重设请求路径
请求/echo/aa,在接下来的处理中被改为/aa
yml配置
- SetPath =/{segment}
json配置
{"name":"SetPath","args":{"_genkey_0":"/{segment}"}}
2.15 设置响应头
在接下来的处理中修改响应头X-Response-Foo为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 设置Http状态
yml配置
- name: SetStatus
args:
status: 401
json配置
{"name":"SetStatus","args":{"_genkey_0":"302"}}
2.17 设置文件传输大小
yml配置
- name: RequestSize
args:
maxSize: 5000000
json配置
{"name":"RequestSize","args":{"_genkey_0":"5000000"}}
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