SpringCloud Upgrade Path 2020.0.x version -42.SpringCloudGateway's existing request logs and defects for analysis

This is the 27th day of my participation in the November Gwen Challenge. Check out the event details: The last Gwen Challenge 2021

This series code address: github.com/JoJoTec/spr…

Because the gateway is the entry point for all external user requests, recording the elements we need in these requests is very important for online monitoring and business problem location. And, among these elements, link information is also very important. Through the link information, we can find the logs related to the whole link of the request invocation. In addition, the gateway is also the place where most of the request links start. While recording the elements in the request, the link information should also be carried.

We need to log each request at the gateway:

HTTP related elements:
- URL Related Information
- Request information, such as HTTP headers, request time, and so on
- Some type of request body
- Response information, such as response code
- The response body of some type of response
The link information

Existing logs and defects for analysis

First let’s take a look at the logging we can use in the Spring Cloud Gateway itself. Spring Cloud Gateway is based on Spring-WebFlux, and Spring-WebFlux is based on Project Reactor. We did not add additional Web container dependencies to the Gateway. So the Web container uses the default Reactor-Netty implementation based on Project Reactor.

Netty packet capture logs

With Netty we can think of Netty’s packet capture log, and the Spring Cloud Gateway encapsulates this functionality and exposes the configuration. The Spring Cloud Gateway is a Gateway that accepts HTTP requests as an HTTP server and forwards requests to downstream microservices as an HTTP client. So, there are two types of packet capture logs: one is for requests and responses received by the HTTP server, and the other is for requests and responses sent by the HTTP client. There are two configurations:

spring.cloud.gateway:
  httpserver:
    wiretap: true
  httpclient:
    wiretap: true
Copy the code

I often get private messages from readers asking how to see what spring Cloud’s configuration is, and the official documentation doesn’t feel clear and comprehensive enough. I usually look at the source code, but since many people don’t have the energy to study the source code, a lazy way is to look at spring-configuration-metadata.json in the JAR package. It is handy to include a fairly complete configuration and configuration classes (if any). For example, we have two configurations that correspond in this JSON:

{
  "name": "spring.cloud.gateway.httpclient.wiretap",
  "type": "java.lang.Boolean",
  "description": "Enables wiretap debugging for Netty HttpClient.",
  "sourceType": "org.springframework.cloud.gateway.config.HttpClientProperties",
  "defaultValue": false
},
{
  "name": "spring.cloud.gateway.httpserver.wiretap",
  "type": "java.lang.Boolean",
  "description": "Enables wiretap debugging for Netty HttpServer.",
  "defaultValue": "false"
},
Copy the code

As you can see, Spring. Cloud. Gateway. Httpclient. Wiretap corresponding configuration class Org. Springframework. Cloud. Gateway. Config. HttpClientProperties (this configuration class configuration will use behind us, then will be detailed analysis of the configuration items), the default is false. Spring. Cloud. Gateway. Httpserver. Wiretap no configuration class, he was used directly, the corresponding source code:

GatewayAutoConfiguration.java

@Bean @ConditionalOnProperty(name = "spring.cloud.gateway.httpserver.wiretap") public NettyWebServerFactoryCustomizer nettyServerWiretapCustomizer(Environment environment, ServerProperties serverProperties) { return new NettyWebServerFactoryCustomizer(environment, serverProperties) { @Override public void customize(NettyReactiveWebServerFactory factory) { factory.addServerCustomizers(httpServer -> httpServer.wiretap(true)); super.customize(factory); }}; }Copy the code

After adding these two configurations to true, add the log output configuration, I used here is log4j2 (is actually set reactor.net ty. HTTP. Server HttpServer and reactor.net ty. HTTP. The server log level to DEBUG HttpClient) :

<AsyncLogger name="reactor.netty.http.server.HttpServer" level="debug" additivity="false" includeLocation="true">
    <appender-ref ref="console" />
</AsyncLogger>
<AsyncLogger name="reactor.netty.http.client.HttpClient" level="debug" additivity="false" includeLocation="true">
    <appender-ref ref="console" />
</AsyncLogger>
Copy the code

We then request the gateway we implemented earlier again and see logs similar to the following:

2021-11-27 01:16:06,262 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] READ: 466B
         +-------------------------------------------------+
         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+--------+-------------------------------------------------+----------------+
|00000000| 47 45 54 20 2f 74 65 73 74 2d 73 73 2f 61 6e 79 |GET /test-ss/any|
|00000010| 74 68 69 6e 67 20 48 54 54 50 2f 31 2e 31 0d 0a |thing HTTP/1.1..|
|00000020| 48 6f 73 74 3a 20 31 32 37 2e 30 2e 30 2e 31 3a |Host: 127.0.0.1:|
|00000030| 38 31 38 31 0d 0a 43 6f 6e 6e 65 63 74 69 6f 6e |8181..Connection|
|00000040| 3a 20 6b 65 65 70 2d 61 6c 69 76 65 0d 0a 43 61 |: keep-alive..Ca|
|00000050| 63 68 65 2d 43 6f 6e 74 72 6f 6c 3a 20 6d 61 78 |che-Control: max|
|00000060| 2d 61 67 65 3d 30 0d 0a 55 70 67 72 61 64 65 2d |-age=0..Upgrade-|
|00000070| 49 6e 73 65 63 75 72 65 2d 52 65 71 75 65 73 74 |Insecure-Request|
|00000080| 73 3a 20 31 0d 0a 55 73 65 72 2d 41 67 65 6e 74 |s: 1..User-Agent|
|00000090| 3a 20 4d 6f 7a 69 6c 6c 61 2f 35 2e 30 20 28 57 |: Mozilla/5.0 (W|
|000000a0| 69 6e 64 6f 77 73 20 4e 54 20 31 30 2e 30 3b 20 |indows NT 10.0; |
|000000b0| 57 4f 57 36 34 29 20 41 70 70 6c 65 57 65 62 4b |WOW64) AppleWebK|
|000000c0| 69 74 2f 35 33 37 2e 33 36 20 28 4b 48 54 4d 4c |it/537.36 (KHTML|
|000000d0| 2c 20 6c 69 6b 65 20 47 65 63 6b 6f 29 20 43 68 |, like Gecko) Ch|
|000000e0| 72 6f 6d 65 2f 37 30 2e 30 2e 33 35 33 38 2e 32 |rome/70.0.3538.2|
|000000f0| 35 20 53 61 66 61 72 69 2f 35 33 37 2e 33 36 20 |5 Safari/537.36 |
|00000100| 43 6f 72 65 2f 31 2e 37 30 2e 33 38 37 39 2e 34 |Core/1.70.3879.4|
|00000110| 30 30 20 51 51 42 72 6f 77 73 65 72 2f 31 30 2e |00 QQBrowser/10.|
|00000120| 38 2e 34 35 35 32 2e 34 30 30 0d 0a 41 63 63 65 |8.4552.400..Acce|
|00000130| 70 74 3a 20 74 65 78 74 2f 68 74 6d 6c 2c 61 70 |pt: text/html,ap|
|00000140| 70 6c 69 63 61 74 69 6f 6e 2f 78 68 74 6d 6c 2b |plication/xhtml+|
|00000150| 78 6d 6c 2c 61 70 70 6c 69 63 61 74 69 6f 6e 2f |xml,application/|
|00000160| 78 6d 6c 3b 71 3d 30 2e 39 2c 69 6d 61 67 65 2f |xml;q=0.9,image/|
|00000170| 77 65 62 70 2c 69 6d 61 67 65 2f 61 70 6e 67 2c |webp,image/apng,|
|00000180| 2a 2f 2a 3b 71 3d 30 2e 38 0d 0a 41 63 63 65 70 |*/*;q=0.8..Accep|
|00000190| 74 2d 45 6e 63 6f 64 69 6e 67 3a 20 67 7a 69 70 |t-Encoding: gzip|
|000001a0| 2c 20 64 65 66 6c 61 74 65 2c 20 62 72 0d 0a 41 |, deflate, br..A|
|000001b0| 63 63 65 70 74 2d 4c 61 6e 67 75 61 67 65 3a 20 |ccept-Language: |
|000001c0| 7a 68 2d 43 4e 2c 7a 68 3b 71 3d 30 2e 39 0d 0a |zh-CN,zh;q=0.9..|
|000001d0| 0d 0a                                           |..              |
+--------+-------------------------------------------------+----------------+
2021-11-27 01:16:06,262 DEBUG [sports,,] [10632] [reactor-http-nio-2][reactor.util.Loggers$Slf4JLogger:249]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] Handler is being applied: org.springframework.http.server.reactive.ReactorHttpHandlerAdapter@317ee5cc
2021-11-27 01:16:06,378 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] READ COMPLETE
2021-11-27 01:16:06,381 DEBUG [sports,,] [10632] [reactor-http-nio-6][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:6666c1d1] REGISTERED
2021-11-27 01:16:06,437 DEBUG [sports,,] [10632] [reactor-http-nio-6][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:6666c1d1] CONNECT: httpbin.org/18.232.227.86:80
2021-11-27 01:16:06,656 DEBUG [sports,,] [10632] [reactor-http-nio-6][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:6666c1d1, L:/172.168.160.198:52819 - R:httpbin.org/18.232.227.86:80] ACTIVE
2021-11-27 01:16:06,672 DEBUG [sports,,] [10632] [reactor-http-nio-6][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:6666c1d1-1, L:/172.168.160.198:52819 - R:httpbin.org/18.232.227.86:80] WRITE: 775B
         +-------------------------------------------------+
         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+--------+-------------------------------------------------+----------------+
|00000000| 47 45 54 20 2f 61 6e 79 74 68 69 6e 67 20 48 54 |GET /anything HT|
|00000010| 54 50 2f 31 2e 31 0d 0a 43 61 63 68 65 2d 43 6f |TP/1.1..Cache-Co|
|00000020| 6e 74 72 6f 6c 3a 20 6d 61 78 2d 61 67 65 3d 30 |ntrol: max-age=0|
|00000030| 0d 0a 55 70 67 72 61 64 65 2d 49 6e 73 65 63 75 |..Upgrade-Insecu|
|00000040| 72 65 2d 52 65 71 75 65 73 74 73 3a 20 31 0d 0a |re-Requests: 1..|
|00000050| 55 73 65 72 2d 41 67 65 6e 74 3a 20 4d 6f 7a 69 |User-Agent: Mozi|
|00000060| 6c 6c 61 2f 35 2e 30 20 28 57 69 6e 64 6f 77 73 |lla/5.0 (Windows|
|00000070| 20 4e 54 20 31 30 2e 30 3b 20 57 4f 57 36 34 29 | NT 10.0; WOW64)|
|00000080| 20 41 70 70 6c 65 57 65 62 4b 69 74 2f 35 33 37 | AppleWebKit/537|
|00000090| 2e 33 36 20 28 4b 48 54 4d 4c 2c 20 6c 69 6b 65 |.36 (KHTML, like|
|000000a0| 20 47 65 63 6b 6f 29 20 43 68 72 6f 6d 65 2f 37 | Gecko) Chrome/7|
|000000b0| 30 2e 30 2e 33 35 33 38 2e 32 35 20 53 61 66 61 |0.0.3538.25 Safa|
|000000c0| 72 69 2f 35 33 37 2e 33 36 20 43 6f 72 65 2f 31 |ri/537.36 Core/1|
|000000d0| 2e 37 30 2e 33 38 37 39 2e 34 30 30 20 51 51 42 |.70.3879.400 QQB|
|000000e0| 72 6f 77 73 65 72 2f 31 30 2e 38 2e 34 35 35 32 |rowser/10.8.4552|
|000000f0| 2e 34 30 30 0d 0a 41 63 63 65 70 74 3a 20 74 65 |.400..Accept: te|
|00000100| 78 74 2f 68 74 6d 6c 2c 61 70 70 6c 69 63 61 74 |xt/html,applicat|
|00000110| 69 6f 6e 2f 78 68 74 6d 6c 2b 78 6d 6c 2c 61 70 |ion/xhtml+xml,ap|
|00000120| 70 6c 69 63 61 74 69 6f 6e 2f 78 6d 6c 3b 71 3d |plication/xml;q=|
|00000130| 30 2e 39 2c 69 6d 61 67 65 2f 77 65 62 70 2c 69 |0.9,image/webp,i|
|00000140| 6d 61 67 65 2f 61 70 6e 67 2c 2a 2f 2a 3b 71 3d |mage/apng,*/*;q=|
|00000150| 30 2e 38 0d 0a 41 63 63 65 70 74 2d 45 6e 63 6f |0.8..Accept-Enco|
|00000160| 64 69 6e 67 3a 20 67 7a 69 70 2c 20 64 65 66 6c |ding: gzip, defl|
|00000170| 61 74 65 2c 20 62 72 0d 0a 41 63 63 65 70 74 2d |ate, br..Accept-|
|00000180| 4c 61 6e 67 75 61 67 65 3a 20 7a 68 2d 43 4e 2c |Language: zh-CN,|
|00000190| 7a 68 3b 71 3d 30 2e 39 0d 0a 46 6f 72 77 61 72 |zh;q=0.9..Forwar|
|000001a0| 64 65 64 3a 20 70 72 6f 74 6f 3d 68 74 74 70 3b |ded: proto=http;|
|000001b0| 68 6f 73 74 3d 22 31 32 37 2e 30 2e 30 2e 31 3a |host="127.0.0.1:|
|000001c0| 38 31 38 31 22 3b 66 6f 72 3d 22 31 32 37 2e 30 |8181";for="127.0|
|000001d0| 2e 30 2e 31 3a 35 32 37 39 37 22 0d 0a 58 2d 46 |.0.1:52797"..X-F|
|000001e0| 6f 72 77 61 72 64 65 64 2d 46 6f 72 3a 20 31 32 |orwarded-For: 12|
|000001f0| 37 2e 30 2e 30 2e 31 0d 0a 58 2d 46 6f 72 77 61 |7.0.0.1..X-Forwa|
|00000200| 72 64 65 64 2d 50 72 6f 74 6f 3a 20 68 74 74 70 |rded-Proto: http|
|00000210| 0d 0a 58 2d 46 6f 72 77 61 72 64 65 64 2d 50 72 |..X-Forwarded-Pr|
|00000220| 65 66 69 78 3a 20 2f 74 65 73 74 2d 73 73 0d 0a |efix: /test-ss..|
|00000230| 58 2d 46 6f 72 77 61 72 64 65 64 2d 50 6f 72 74 |X-Forwarded-Port|
|00000240| 3a 20 38 31 38 31 0d 0a 58 2d 46 6f 72 77 61 72 |: 8181..X-Forwar|
|00000250| 64 65 64 2d 48 6f 73 74 3a 20 31 32 37 2e 30 2e |ded-Host: 127.0.|
|00000260| 30 2e 31 3a 38 31 38 31 0d 0a 68 6f 73 74 3a 20 |0.1:8181..host: |
|00000270| 68 74 74 70 62 69 6e 2e 6f 72 67 0d 0a 58 2d 42 |httpbin.org..X-B|
|00000280| 33 2d 54 72 61 63 65 49 64 3a 20 65 66 39 36 35 |3-TraceId: ef965|
|00000290| 33 61 30 30 30 33 65 64 36 38 65 0d 0a 58 2d 42 |3a0003ed68e..X-B|
|000002a0| 33 2d 53 70 61 6e 49 64 3a 20 38 32 62 36 61 30 |3-SpanId: 82b6a0|
|000002b0| 32 30 32 64 63 31 35 36 36 62 0d 0a 58 2d 42 33 |202dc1566b..X-B3|
|000002c0| 2d 50 61 72 65 6e 74 53 70 61 6e 49 64 3a 20 65 |-ParentSpanId: e|
|000002d0| 66 39 36 35 33 61 30 30 30 33 65 64 36 38 65 0d |f9653a0003ed68e.|
|000002e0| 0a 58 2d 42 33 2d 53 61 6d 70 6c 65 64 3a 20 30 |.X-B3-Sampled: 0|
|000002f0| 0d 0a 63 6f 6e 74 65 6e 74 2d 6c 65 6e 67 74 68 |..content-length|
|00000300| 3a 20 30 0d 0a 0d 0a                            |: 0....         |
+--------+-------------------------------------------------+----------------+
2021-11-27 01:16:06,672 DEBUG [sports,,] [10632] [reactor-http-nio-6][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:6666c1d1-1, L:/172.168.160.198:52819 - R:httpbin.org/18.232.227.86:80] FLUSH
2021-11-27 01:16:06,890 DEBUG [sports,,] [10632] [reactor-http-nio-6][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:6666c1d1-1, L:/172.168.160.198:52819 - R:httpbin.org/18.232.227.86:80] READ: 1315B
         +-------------------------------------------------+
         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+--------+-------------------------------------------------+----------------+
|00000000| 48 54 54 50 2f 31 2e 31 20 32 30 30 20 4f 4b 0d |HTTP/1.1 200 OK.|
|00000010| 0a 44 61 74 65 3a 20 53 61 74 2c 20 32 37 20 4e |.Date: Sat, 27 N|
|00000020| 6f 76 20 32 30 32 31 20 30 31 3a 31 36 3a 30 34 |ov 2021 01:16:04|
|00000030| 20 47 4d 54 0d 0a 43 6f 6e 74 65 6e 74 2d 54 79 | GMT..Content-Ty|
|00000040| 70 65 3a 20 61 70 70 6c 69 63 61 74 69 6f 6e 2f |pe: application/|
|00000050| 6a 73 6f 6e 0d 0a 43 6f 6e 74 65 6e 74 2d 4c 65 |json..Content-Le|
|00000060| 6e 67 74 68 3a 20 31 30 38 34 0d 0a 43 6f 6e 6e |ngth: 1084..Conn|
|00000070| 65 63 74 69 6f 6e 3a 20 6b 65 65 70 2d 61 6c 69 |ection: keep-ali|
|00000080| 76 65 0d 0a 53 65 72 76 65 72 3a 20 67 75 6e 69 |ve..Server: guni|
|00000090| 63 6f 72 6e 2f 31 39 2e 39 2e 30 0d 0a 41 63 63 |corn/19.9.0..Acc|
|000000a0| 65 73 73 2d 43 6f 6e 74 72 6f 6c 2d 41 6c 6c 6f |ess-Control-Allo|
|000000b0| 77 2d 4f 72 69 67 69 6e 3a 20 2a 0d 0a 41 63 63 |w-Origin: *..Acc|
|000000c0| 65 73 73 2d 43 6f 6e 74 72 6f 6c 2d 41 6c 6c 6f |ess-Control-Allo|
|000000d0| 77 2d 43 72 65 64 65 6e 74 69 61 6c 73 3a 20 74 |w-Credentials: t|
|000000e0| 72 75 65 0d 0a 0d 0a 7b 0a 20 20 22 61 72 67 73 |rue....{.  "args|
|000000f0| 22 3a 20 7b 7d 2c 20 0a 20 20 22 64 61 74 61 22 |": {}, .  "data"|
|00000100| 3a 20 22 22 2c 20 0a 20 20 22 66 69 6c 65 73 22 |: "", .  "files"|
|00000110| 3a 20 7b 7d 2c 20 0a 20 20 22 66 6f 72 6d 22 3a |: {}, .  "form":|
|00000120| 20 7b 7d 2c 20 0a 20 20 22 68 65 61 64 65 72 73 | {}, .  "headers|
|00000130| 22 3a 20 7b 0a 20 20 20 20 22 41 63 63 65 70 74 |": {.    "Accept|
|00000140| 22 3a 20 22 74 65 78 74 2f 68 74 6d 6c 2c 61 70 |": "text/html,ap|
|00000150| 70 6c 69 63 61 74 69 6f 6e 2f 78 68 74 6d 6c 2b |plication/xhtml+|
|00000160| 78 6d 6c 2c 61 70 70 6c 69 63 61 74 69 6f 6e 2f |xml,application/|
|00000170| 78 6d 6c 3b 71 3d 30 2e 39 2c 69 6d 61 67 65 2f |xml;q=0.9,image/|
|00000180| 77 65 62 70 2c 69 6d 61 67 65 2f 61 70 6e 67 2c |webp,image/apng,|
|00000190| 2a 2f 2a 3b 71 3d 30 2e 38 22 2c 20 0a 20 20 20 |*/*;q=0.8", .   |
|000001a0| 20 22 41 63 63 65 70 74 2d 45 6e 63 6f 64 69 6e | "Accept-Encodin|
|000001b0| 67 22 3a 20 22 67 7a 69 70 2c 20 64 65 66 6c 61 |g": "gzip, defla|
|000001c0| 74 65 2c 20 62 72 22 2c 20 0a 20 20 20 20 22 41 |te, br", .    "A|
|000001d0| 63 63 65 70 74 2d 4c 61 6e 67 75 61 67 65 22 3a |ccept-Language":|
|000001e0| 20 22 7a 68 2d 43 4e 2c 7a 68 3b 71 3d 30 2e 39 | "zh-CN,zh;q=0.9|
|000001f0| 22 2c 20 0a 20 20 20 20 22 43 61 63 68 65 2d 43 |", .    "Cache-C|
|00000200| 6f 6e 74 72 6f 6c 22 3a 20 22 6d 61 78 2d 61 67 |ontrol": "max-ag|
|00000210| 65 3d 30 22 2c 20 0a 20 20 20 20 22 43 6f 6e 74 |e=0", .    "Cont|
|00000220| 65 6e 74 2d 4c 65 6e 67 74 68 22 3a 20 22 30 22 |ent-Length": "0"|
|00000230| 2c 20 0a 20 20 20 20 22 46 6f 72 77 61 72 64 65 |, .    "Forwarde|
|00000240| 64 22 3a 20 22 70 72 6f 74 6f 3d 68 74 74 70 3b |d": "proto=http;|
|00000250| 68 6f 73 74 3d 5c 22 31 32 37 2e 30 2e 30 2e 31 |host=\"127.0.0.1|
|00000260| 3a 38 31 38 31 5c 22 3b 66 6f 72 3d 5c 22 31 32 |:8181\";for=\"12|
|00000270| 37 2e 30 2e 30 2e 31 3a 35 32 37 39 37 5c 22 22 |7.0.0.1:52797\""|
|00000280| 2c 20 0a 20 20 20 20 22 48 6f 73 74 22 3a 20 22 |, .    "Host": "|
|00000290| 68 74 74 70 62 69 6e 2e 6f 72 67 22 2c 20 0a 20 |httpbin.org", . |
|000002a0| 20 20 20 22 55 70 67 72 61 64 65 2d 49 6e 73 65 |   "Upgrade-Inse|
|000002b0| 63 75 72 65 2d 52 65 71 75 65 73 74 73 22 3a 20 |cure-Requests": |
|000002c0| 22 31 22 2c 20 0a 20 20 20 20 22 55 73 65 72 2d |"1", .    "User-|
|000002d0| 41 67 65 6e 74 22 3a 20 22 4d 6f 7a 69 6c 6c 61 |Agent": "Mozilla|
|000002e0| 2f 35 2e 30 20 28 57 69 6e 64 6f 77 73 20 4e 54 |/5.0 (Windows NT|
|000002f0| 20 31 30 2e 30 3b 20 57 4f 57 36 34 29 20 41 70 | 10.0; WOW64) Ap|
|00000300| 70 6c 65 57 65 62 4b 69 74 2f 35 33 37 2e 33 36 |pleWebKit/537.36|
|00000310| 20 28 4b 48 54 4d 4c 2c 20 6c 69 6b 65 20 47 65 | (KHTML, like Ge|
|00000320| 63 6b 6f 29 20 43 68 72 6f 6d 65 2f 37 30 2e 30 |cko) Chrome/70.0|
|00000330| 2e 33 35 33 38 2e 32 35 20 53 61 66 61 72 69 2f |.3538.25 Safari/|
|00000340| 35 33 37 2e 33 36 20 43 6f 72 65 2f 31 2e 37 30 |537.36 Core/1.70|
|00000350| 2e 33 38 37 39 2e 34 30 30 20 51 51 42 72 6f 77 |.3879.400 QQBrow|
|00000360| 73 65 72 2f 31 30 2e 38 2e 34 35 35 32 2e 34 30 |ser/10.8.4552.40|
|00000370| 30 22 2c 20 0a 20 20 20 20 22 58 2d 41 6d 7a 6e |0", .    "X-Amzn|
|00000380| 2d 54 72 61 63 65 2d 49 64 22 3a 20 22 52 6f 6f |-Trace-Id": "Roo|
|00000390| 74 3d 31 2d 36 31 61 31 38 36 64 34 2d 34 31 38 |t=1-61a186d4-418|
|000003a0| 32 30 65 31 66 36 33 39 30 32 64 34 64 33 63 63 |20e1f63902d4d3cc|
|000003b0| 64 38 62 39 64 22 2c 20 0a 20 20 20 20 22 58 2d |d8b9d", .    "X-|
|000003c0| 42 33 2d 50 61 72 65 6e 74 73 70 61 6e 69 64 22 |B3-Parentspanid"|
|000003d0| 3a 20 22 65 66 39 36 35 33 61 30 30 30 33 65 64 |: "ef9653a0003ed|
|000003e0| 36 38 65 22 2c 20 0a 20 20 20 20 22 58 2d 42 33 |68e", .    "X-B3|
|000003f0| 2d 53 61 6d 70 6c 65 64 22 3a 20 22 30 22 2c 20 |-Sampled": "0", |
|00000400| 0a 20 20 20 20 22 58 2d 42 33 2d 53 70 61 6e 69 |.    "X-B3-Spani|
|00000410| 64 22 3a 20 22 38 32 62 36 61 30 32 30 32 64 63 |d": "82b6a0202dc|
|00000420| 31 35 36 36 62 22 2c 20 0a 20 20 20 20 22 58 2d |1566b", .    "X-|
|00000430| 42 33 2d 54 72 61 63 65 69 64 22 3a 20 22 65 66 |B3-Traceid": "ef|
|00000440| 39 36 35 33 61 30 30 30 33 65 64 36 38 65 22 2c |9653a0003ed68e",|
|00000450| 20 0a 20 20 20 20 22 58 2d 46 6f 72 77 61 72 64 | .    "X-Forward|
|00000460| 65 64 2d 48 6f 73 74 22 3a 20 22 31 32 37 2e 30 |ed-Host": "127.0|
|00000470| 2e 30 2e 31 3a 38 31 38 31 22 2c 20 0a 20 20 20 |.0.1:8181", .   |
|00000480| 20 22 58 2d 46 6f 72 77 61 72 64 65 64 2d 50 72 | "X-Forwarded-Pr|
|00000490| 65 66 69 78 22 3a 20 22 2f 74 65 73 74 2d 73 73 |efix": "/test-ss|
|000004a0| 22 0a 20 20 7d 2c 20 0a 20 20 22 6a 73 6f 6e 22 |".  }, .  "json"|
|000004b0| 3a 20 6e 75 6c 6c 2c 20 0a 20 20 22 6d 65 74 68 |: null, .  "meth|
|000004c0| 6f 64 22 3a 20 22 47 45 54 22 2c 20 0a 20 20 22 |od": "GET", .  "|
|000004d0| 6f 72 69 67 69 6e 22 3a 20 22 31 32 37 2e 30 2e |origin": "127.0.|
|000004e0| 30 2e 31 2c 20 35 39 2e 31 35 32 2e 32 35 34 2e |0.1, 59.152.254.|
|000004f0| 32 33 38 22 2c 20 0a 20 20 22 75 72 6c 22 3a 20 |238", .  "url": |
|00000500| 22 68 74 74 70 3a 2f 2f 31 32 37 2e 30 2e 30 2e |"http://127.0.0.|
|00000510| 31 3a 38 31 38 31 2f 61 6e 79 74 68 69 6e 67 22 |1:8181/anything"|
|00000520| 0a 7d 0a                                        |.}.             |
+--------+-------------------------------------------------+----------------+
2021-11-27 01:16:06,904 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] WRITE: 207B
         +-------------------------------------------------+
         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+--------+-------------------------------------------------+----------------+
|00000000| 48 54 54 50 2f 31 2e 31 20 32 30 30 20 4f 4b 0d |HTTP/1.1 200 OK.|
|00000010| 0a 44 61 74 65 3a 20 53 61 74 2c 20 32 37 20 4e |.Date: Sat, 27 N|
|00000020| 6f 76 20 32 30 32 31 20 30 31 3a 31 36 3a 30 34 |ov 2021 01:16:04|
|00000030| 20 47 4d 54 0d 0a 43 6f 6e 74 65 6e 74 2d 54 79 | GMT..Content-Ty|
|00000040| 70 65 3a 20 61 70 70 6c 69 63 61 74 69 6f 6e 2f |pe: application/|
|00000050| 6a 73 6f 6e 0d 0a 53 65 72 76 65 72 3a 20 67 75 |json..Server: gu|
|00000060| 6e 69 63 6f 72 6e 2f 31 39 2e 39 2e 30 0d 0a 41 |nicorn/19.9.0..A|
|00000070| 63 63 65 73 73 2d 43 6f 6e 74 72 6f 6c 2d 41 6c |ccess-Control-Al|
|00000080| 6c 6f 77 2d 4f 72 69 67 69 6e 3a 20 2a 0d 0a 41 |low-Origin: *..A|
|00000090| 63 63 65 73 73 2d 43 6f 6e 74 72 6f 6c 2d 41 6c |ccess-Control-Al|
|000000a0| 6c 6f 77 2d 43 72 65 64 65 6e 74 69 61 6c 73 3a |low-Credentials:|
|000000b0| 20 74 72 75 65 0d 0a 63 6f 6e 74 65 6e 74 2d 6c | true..content-l|
|000000c0| 65 6e 67 74 68 3a 20 31 30 38 34 0d 0a 0d 0a    |ength: 1084.... |
+--------+-------------------------------------------------+----------------+
2021-11-27 01:16:06,904 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] FLUSH
2021-11-27 01:16:06,909 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] WRITE: 1084B
         +-------------------------------------------------+
         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+--------+-------------------------------------------------+----------------+
|00000000| 7b 0a 20 20 22 61 72 67 73 22 3a 20 7b 7d 2c 20 |{.  "args": {}, |
|00000010| 0a 20 20 22 64 61 74 61 22 3a 20 22 22 2c 20 0a |.  "data": "", .|
|00000020| 20 20 22 66 69 6c 65 73 22 3a 20 7b 7d 2c 20 0a |  "files": {}, .|
|00000030| 20 20 22 66 6f 72 6d 22 3a 20 7b 7d 2c 20 0a 20 |  "form": {}, . |
|00000040| 20 22 68 65 61 64 65 72 73 22 3a 20 7b 0a 20 20 | "headers": {.  |
|00000050| 20 20 22 41 63 63 65 70 74 22 3a 20 22 74 65 78 |  "Accept": "tex|
|00000060| 74 2f 68 74 6d 6c 2c 61 70 70 6c 69 63 61 74 69 |t/html,applicati|
|00000070| 6f 6e 2f 78 68 74 6d 6c 2b 78 6d 6c 2c 61 70 70 |on/xhtml+xml,app|
|00000080| 6c 69 63 61 74 69 6f 6e 2f 78 6d 6c 3b 71 3d 30 |lication/xml;q=0|
|00000090| 2e 39 2c 69 6d 61 67 65 2f 77 65 62 70 2c 69 6d |.9,image/webp,im|
|000000a0| 61 67 65 2f 61 70 6e 67 2c 2a 2f 2a 3b 71 3d 30 |age/apng,*/*;q=0|
|000000b0| 2e 38 22 2c 20 0a 20 20 20 20 22 41 63 63 65 70 |.8", .    "Accep|
|000000c0| 74 2d 45 6e 63 6f 64 69 6e 67 22 3a 20 22 67 7a |t-Encoding": "gz|
|000000d0| 69 70 2c 20 64 65 66 6c 61 74 65 2c 20 62 72 22 |ip, deflate, br"|
|000000e0| 2c 20 0a 20 20 20 20 22 41 63 63 65 70 74 2d 4c |, .    "Accept-L|
|000000f0| 61 6e 67 75 61 67 65 22 3a 20 22 7a 68 2d 43 4e |anguage": "zh-CN|
|00000100| 2c 7a 68 3b 71 3d 30 2e 39 22 2c 20 0a 20 20 20 |,zh;q=0.9", .   |
|00000110| 20 22 43 61 63 68 65 2d 43 6f 6e 74 72 6f 6c 22 | "Cache-Control"|
|00000120| 3a 20 22 6d 61 78 2d 61 67 65 3d 30 22 2c 20 0a |: "max-age=0", .|
|00000130| 20 20 20 20 22 43 6f 6e 74 65 6e 74 2d 4c 65 6e |    "Content-Len|
|00000140| 67 74 68 22 3a 20 22 30 22 2c 20 0a 20 20 20 20 |gth": "0", .    |
|00000150| 22 46 6f 72 77 61 72 64 65 64 22 3a 20 22 70 72 |"Forwarded": "pr|
|00000160| 6f 74 6f 3d 68 74 74 70 3b 68 6f 73 74 3d 5c 22 |oto=http;host=\"|
|00000170| 31 32 37 2e 30 2e 30 2e 31 3a 38 31 38 31 5c 22 |127.0.0.1:8181\"|
|00000180| 3b 66 6f 72 3d 5c 22 31 32 37 2e 30 2e 30 2e 31 |;for=\"127.0.0.1|
|00000190| 3a 35 32 37 39 37 5c 22 22 2c 20 0a 20 20 20 20 |:52797\"", .    |
|000001a0| 22 48 6f 73 74 22 3a 20 22 68 74 74 70 62 69 6e |"Host": "httpbin|
|000001b0| 2e 6f 72 67 22 2c 20 0a 20 20 20 20 22 55 70 67 |.org", .    "Upg|
|000001c0| 72 61 64 65 2d 49 6e 73 65 63 75 72 65 2d 52 65 |rade-Insecure-Re|
|000001d0| 71 75 65 73 74 73 22 3a 20 22 31 22 2c 20 0a 20 |quests": "1", . |
|000001e0| 20 20 20 22 55 73 65 72 2d 41 67 65 6e 74 22 3a |   "User-Agent":|
|000001f0| 20 22 4d 6f 7a 69 6c 6c 61 2f 35 2e 30 20 28 57 | "Mozilla/5.0 (W|
|00000200| 69 6e 64 6f 77 73 20 4e 54 20 31 30 2e 30 3b 20 |indows NT 10.0; |
|00000210| 57 4f 57 36 34 29 20 41 70 70 6c 65 57 65 62 4b |WOW64) AppleWebK|
|00000220| 69 74 2f 35 33 37 2e 33 36 20 28 4b 48 54 4d 4c |it/537.36 (KHTML|
|00000230| 2c 20 6c 69 6b 65 20 47 65 63 6b 6f 29 20 43 68 |, like Gecko) Ch|
|00000240| 72 6f 6d 65 2f 37 30 2e 30 2e 33 35 33 38 2e 32 |rome/70.0.3538.2|
|00000250| 35 20 53 61 66 61 72 69 2f 35 33 37 2e 33 36 20 |5 Safari/537.36 |
|00000260| 43 6f 72 65 2f 31 2e 37 30 2e 33 38 37 39 2e 34 |Core/1.70.3879.4|
|00000270| 30 30 20 51 51 42 72 6f 77 73 65 72 2f 31 30 2e |00 QQBrowser/10.|
|00000280| 38 2e 34 35 35 32 2e 34 30 30 22 2c 20 0a 20 20 |8.4552.400", .  |
|00000290| 20 20 22 58 2d 41 6d 7a 6e 2d 54 72 61 63 65 2d |  "X-Amzn-Trace-|
|000002a0| 49 64 22 3a 20 22 52 6f 6f 74 3d 31 2d 36 31 61 |Id": "Root=1-61a|
|000002b0| 31 38 36 64 34 2d 34 31 38 32 30 65 31 66 36 33 |186d4-41820e1f63|
|000002c0| 39 30 32 64 34 64 33 63 63 64 38 62 39 64 22 2c |902d4d3ccd8b9d",|
|000002d0| 20 0a 20 20 20 20 22 58 2d 42 33 2d 50 61 72 65 | .    "X-B3-Pare|
|000002e0| 6e 74 73 70 61 6e 69 64 22 3a 20 22 65 66 39 36 |ntspanid": "ef96|
|000002f0| 35 33 61 30 30 30 33 65 64 36 38 65 22 2c 20 0a |53a0003ed68e", .|
|00000300| 20 20 20 20 22 58 2d 42 33 2d 53 61 6d 70 6c 65 |    "X-B3-Sample|
|00000310| 64 22 3a 20 22 30 22 2c 20 0a 20 20 20 20 22 58 |d": "0", .    "X|
|00000320| 2d 42 33 2d 53 70 61 6e 69 64 22 3a 20 22 38 32 |-B3-Spanid": "82|
|00000330| 62 36 61 30 32 30 32 64 63 31 35 36 36 62 22 2c |b6a0202dc1566b",|
|00000340| 20 0a 20 20 20 20 22 58 2d 42 33 2d 54 72 61 63 | .    "X-B3-Trac|
|00000350| 65 69 64 22 3a 20 22 65 66 39 36 35 33 61 30 30 |eid": "ef9653a00|
|00000360| 30 33 65 64 36 38 65 22 2c 20 0a 20 20 20 20 22 |03ed68e", .    "|
|00000370| 58 2d 46 6f 72 77 61 72 64 65 64 2d 48 6f 73 74 |X-Forwarded-Host|
|00000380| 22 3a 20 22 31 32 37 2e 30 2e 30 2e 31 3a 38 31 |": "127.0.0.1:81|
|00000390| 38 31 22 2c 20 0a 20 20 20 20 22 58 2d 46 6f 72 |81", .    "X-For|
|000003a0| 77 61 72 64 65 64 2d 50 72 65 66 69 78 22 3a 20 |warded-Prefix": |
|000003b0| 22 2f 74 65 73 74 2d 73 73 22 0a 20 20 7d 2c 20 |"/test-ss".  }, |
|000003c0| 0a 20 20 22 6a 73 6f 6e 22 3a 20 6e 75 6c 6c 2c |.  "json": null,|
|000003d0| 20 0a 20 20 22 6d 65 74 68 6f 64 22 3a 20 22 47 | .  "method": "G|
|000003e0| 45 54 22 2c 20 0a 20 20 22 6f 72 69 67 69 6e 22 |ET", .  "origin"|
|000003f0| 3a 20 22 31 32 37 2e 30 2e 30 2e 31 2c 20 35 39 |: "127.0.0.1, 59|
|00000400| 2e 31 35 32 2e 32 35 34 2e 32 33 38 22 2c 20 0a |.152.254.238", .|
|00000410| 20 20 22 75 72 6c 22 3a 20 22 68 74 74 70 3a 2f |  "url": "http:/|
|00000420| 2f 31 32 37 2e 30 2e 30 2e 31 3a 38 31 38 31 2f |/127.0.0.1:8181/|
|00000430| 61 6e 79 74 68 69 6e 67 22 0a 7d 0a             |anything".}.    |
+--------+-------------------------------------------------+----------------+
2021-11-27 01:16:06,909 DEBUG [sports,,] [10632] [reactor-http-nio-6][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:6666c1d1, L:/172.168.160.198:52819 - R:httpbin.org/18.232.227.86:80] READ COMPLETE
2021-11-27 01:16:06,910 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] FLUSH
2021-11-27 01:16:06,910 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] WRITE: 0B
2021-11-27 01:16:06,910 DEBUG [sports,,] [10632] [reactor-http-nio-2][io.netty.util.internal.logging.AbstractInternalLogger:145]:[id:1277d54e-2, L:/127.0.0.1:8181 - R:/127.0.0.1:52797] FLUSH


Copy the code

You can see the following important information from the log:

All the contents of HTTP request and response packets can be obtained from the packet capture logs.
The log here is not wrapped by Spring-Cloud-sleuth, so the placeholder of the log itself has no link information
However, from the package, you can see the link information of Spring-cloud-sleuth, here is:"X-B3-Parentspanid": "ef9653a0003ed68e", "X-B3-Sampled": "0", "X-B3-Spanid": "82b6a0202dc1566b", "X-B3-Traceid": "ef9653a0003ed68e",
Netty has its own traceId, which is here6666c1d1 和 1277d54eIn this way, the link information of Spring-Cloud-sleUTH can be combined with the link information of NetTY

The logs are comprehensive, but there are some unusable issues:

Only the package contents of all request responses can be output, and you cannot customize what is output. For example, for file upload requests, we don’t really want to see the request body, but we can’t customize it here.
Too many logs affect our performance.

HttpWebHandlerAdapter TRACE log

In the source code analysis of the previous articles in this series, we learned that there are request and response logs in the HttpWebHandlerAdapter of the entry, which can be enabled with the following configuration:

<AsyncLogger name="org.springframework.web.server.adapter.HttpWebHandlerAdapter" level="trace" additivity="false" includeLocation="true">
    <appender-ref ref="console" />
</AsyncLogger>
Copy the code

This enables logging similar to the following:

2021-11-27 01:25:28,472 TRACE [Sports,,] [16188] [reactor-http-nio-2][org.springframework.core.log.LogFormatUtils:88]:[8d5138d1-3] HTTP GET "/test-ss/anything", Headers ={masked} 2021-11-27 01:25:28,696 TRACE [sports,,] [16188] [reactor-http-nio-2][org.springframework.core.log.LogFormatUtils:88]:[8d5138d1-3] Completed 200 OK, headers={masked}Copy the code

To prevent headers from being masked, do the following:

spring.codec:
  log-request-details: true
Copy the code

The corresponding configuration class for this configuration is CodecProperties. As we can see from the source code, we can also limit the size of the body here:

CodecProperties.java

@ConfigurationProperties(prefix = "spring.codec")
public class CodecProperties {
	private boolean logRequestDetails;
	private DataSize maxInMemorySize;
}
Copy the code

After the configuration is added, the logs are as follows:

2021-11-27 01:32:50,501 TRACE [Sports,,] [17668] [reactor-http-nio-2][org.springframework.core.log.LogFormatUtils:88]:[ecf9f55a-1] HTTP GET "/test-ss/anything", Headers = [Host: 127.0.0.1: "8181", the Connection: "keep - the alive," cache-control: Max - age = "0", the Upgrade - Insecure - Requests: "1", The user-agent: "Mozilla / 5.0 (Windows NT 10.0; WOW64) AppleWebKit / 537.36 (KHTML, Like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3879.400 QQBrowser/10.8.4552.400", Accept: "text/HTML, application/XHTML + XML, application/XML; q = 0.9, image/webp, image/apng, * / *; Q =0.8", accept-encoding :" deflate, deflate ", Accept-language :" zh-cn,zh; Q =0.9"] 2021-11-27 01:32:51,212 TRACE [sports,,] [17668] [reactor-http-nio-2][org.springframework.core.log.LogFormatUtils:88]:[ecf9f55a-1] Completed 200 OK, headers=[Date:"Sat, 27 Nov 2021 01:32:48 GMT, Content-Type:" Application /json", Server:" Gunicorn /19.9.0", Access-Control-allow-Origin :"*", Access-Control-Allow-Credentials:"true", content-length:"1084"]Copy the code

However, this log contains too little content, only request and response headers, and no spring-cloud-sleUTH related link information.

AccessLog

The Spring Cloud Gateway uses a reactor-Netty based HTTP server. In the package of Spring-Boot, You can add a custom AccessLog by adding the NettyServerCustomizer Bean. The AccessLog contains the following elements:

AccessLogArgProvider.java

public interface AccessLogArgProvider {

	@Nullable
	@Deprecated
	String zonedDateTime();

	@Nullable
	ZonedDateTime accessDateTime();

	@Nullable
	SocketAddress remoteAddress();

	@Nullable
	CharSequence method();

	@Nullable
	CharSequence uri();

	@Nullable
	String protocol();

	@Nullable
	String user();

	@Nullable
	CharSequence status();

	long contentLength();

	long duration();

	@Nullable
	CharSequence requestHeader(CharSequence name);

	@Nullable
	CharSequence responseHeader(CharSequence name);

	@Nullable
	Map<CharSequence, Set<Cookie>> cookies();
}

Copy the code

It can be seen that there is no link information related to Spring Cloud sleUTH in it, but we can add link information to the Header of Response by implementing Global Filter. And print these headers to the AccessLog via the requestHeader of the AccessLogArgProvider:

package com.github.jojotech.spring.cloud.apigateway.filter; import java.util.List; import lombok.extern.log4j.Log4j2; import reactor.core.publisher.Mono; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.cloud.gateway.filter.GatewayFilterChain; import org.springframework.cloud.gateway.filter.GlobalFilter; import org.springframework.cloud.sleuth.Span; import org.springframework.cloud.sleuth.TraceContext; import org.springframework.cloud.sleuth.Tracer; import org.springframework.core.Ordered; import org.springframework.http.HttpHeaders; import org.springframework.http.server.reactive.ServerHttpResponse; import org.springframework.stereotype.Component; import org.springframework.web.server.ServerWebExchange; @Log4j2 @Component public class CommonTraceFilter implements GlobalFilter, Ordered { public static final String TRACE_ID = "traceId"; public static final String SPAN_ID = "spanId"; @Autowired private Tracer tracer; @Override public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { Span span = tracer.currentSpan(); if (span == null) { span = tracer.nextSpan(); } TraceContext context = span.context(); ServerHttpResponse response = exchange.getResponse(); HttpHeaders headers = response.getHeaders(); headers.put(TRACE_ID, List.of(context.traceId())); headers.put(SPAN_ID, List.of(context.spanId())); return chain.filter(exchange); } @override public int getOrder() {return Ordered.HIGHEST_PRECEDENCE; }}Copy the code

Then, configure the Access Log by implementing NettyServerCustomizer to register a Bean.

package com.github.jojotech.spring.cloud.apigateway.filter; import java.net.InetSocketAddress; import java.net.SocketAddress; import reactor.netty.http.server.HttpServer; import reactor.netty.http.server.logging.AccessLog; import reactor.netty.http.server.logging.AccessLogFactory; import reactor.util.annotation.Nullable; import org.springframework.boot.web.embedded.netty.NettyServerCustomizer; import org.springframework.stereotype.Component; @Component public class AccessLogNettyServerCustomizer implements NettyServerCustomizer { static final String DEFAULT_LOG_FORMAT = "{},{} -> {} - {} [{}] \"{} {} {}\" {} {} {} ms"; static final String MISSING = "-"; @Override public HttpServer apply(HttpServer httpServer) { httpServer = httpServer.accessLog(true, AccessLogFactory. CreateFilter (accessLogArgProvider - > {/ / all print return true; }, accessLogArgProvider -> { return AccessLog.create(DEFAULT_LOG_FORMAT, accessLogArgProvider .responseHeader(CommonTraceFilter.TRACE_ID) == null ? MISSING : accessLogArgProvider .responseHeader(CommonTraceFilter.TRACE_ID), accessLogArgProvider .responseHeader(CommonTraceFilter.SPAN_ID) == null ? MISSING : accessLogArgProvider .responseHeader(CommonTraceFilter.SPAN_ID), applyAddress(accessLogArgProvider .remoteAddress()), accessLogArgProvider.user(), accessLogArgProvider.zonedDateTime(), accessLogArgProvider.method(), accessLogArgProvider .uri(), accessLogArgProvider.protocol(), accessLogArgProvider.status(), accessLogArgProvider.contentLength() > -1 ? accessLogArgProvider .contentLength() : MISSING, accessLogArgProvider.duration()); })); return httpServer; } static String applyAddress(@Nullable SocketAddress socketAddress) { if (socketAddress instanceof InetSocketAddress) { InetSocketAddress inetSocketAddress = (InetSocketAddress) socketAddress; return inetSocketAddress.getHostString() + ":" + inetSocketAddress.getPort(); } else { return MISSING; }}}Copy the code

In this way, we can get access logs like the following:

2021-11-27 03:56:10,948 INFO [sports,,] [8536] [[reactor - HTTP - nio - 2] reactor. Util. Loggers $Slf4JLogger: 269] : baa69b779a8497eb, baa69b779a8497eb - > 127.0.0.1: - 64196 [2021-11-27T3:56:10.720844200z [Etc/GMT]] "GET /test-ss/anything HTTP/1.1" 200 1084 228 ms [2021-11-27T3:56:10.720844200z [Etc/GMT]] "GET /test-ss/anything HTTP/1.1" 200 1084 228 msCopy the code

Accesslog does not output body, so we still need to customize our own log Filter.

We’ll start implementing our own custom log Filter in the next section

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SpringCloud Upgrade Path 2020.0.x version -42.SpringCloudGateway’s existing request logs and defects for analysis

Existing logs and defects for analysis

Netty packet capture logs

HttpWebHandlerAdapter TRACE log

AccessLog

SpringCloud Upgrade Path 2020.0.x version -42.SpringCloudGateway’s existing request logs and defects for analysis

Existing logs and defects for analysis

Netty packet capture logs

HttpWebHandlerAdapter TRACE log

AccessLog

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