v2ray-core 流量统计 StatsService 使用要点

gistfile1.txt

StatsService API获得数据统计功能，配置里面必须满足以下条件

1. `"stats":{}`对象的存在
2. `"api"`配置对象里面有`StatsService`
3. `"policy"`中的统计开关为true，除了各个用户的统计，还有全局统计
4. clients里面要有email
5. 有个专用的`dokodemo-door`协议的入口，tag为api
6. routing里面有inboundTag:api -> outboundTag:api的规则

另外：
- 统计的email/tag是当前的v2ray进程实例的数据，比如在服务器上统计，客户端写的email对服务器没有意义；如果在客户端统计，输出的就是客户端本身的收发数据。
- 统计API里面除了GetStats，新版本还加入了QueryStats方法，可以列出进程内的所有统计数据，包括各个tag/email的用户。
- `v2ctl api -h`有查询例子

```
v2ctl api --server=127.0.0.1:8080 StatsService.QueryStats 'pattern: "" reset: false'
v2ctl api --server=127.0.0.1:8080 StatsService.GetStats 'name: "inbound>>>statin>>>traffic>>>downlink" reset: false'
```

最后贴一份我的测试配置
```
{
	"stats": {},
	"log": {
		"loglevel": "debug"
	},
	"api": {
		"tag": "api",
		"services": [
			"HandlerService",
			"LoggerService",
			"StatsService"
		]
	},
	"policy": {
		"levels": {
			"0": {
				"statsUserUplink": true,
				"statsUserDownlink": true
			},
			"1": {
				"statsUserUplink": true,
				"statsUserDownlink": true
			}
		},
		"system": {
			"statsInboundUplink": true,
			"statsInboundDownlink": true
		}
	},
	"inbounds": [
		{
			"tag": "tcp",
			"port": 3307,
			"protocol": "vmess",
			"settings": {
				"clients": [
					{
						"email": "a@mail",
						"id": "e731f153-4f31-49d3-9e8f-ff8f396135ef",
						"level": 1,
						"alterId": 64
					},
					{
						"email": "b@mail",
						"id": "e731f153-4f31-49d3-9e8f-ff8f396135ee",
						"level": 1,
						"alterId": 64
					}
				]
			}
		},
		{
			"tag": "tls",
			"port": 8443,
			"protocol": "vmess",
			"settings": {
				"clients": [
					{
						"email": "c@mail",
						"id": "e731f153-4f31-49d3-9e8f-ff8f396135ef",
						"level": 1,
						"alterId": 64
					},
					{
						"email": "d@mail",
						"id": "e731f153-4f31-49d3-9e8f-ff8f396135ee",
						"level": 1,
						"alterId": 64
					}
				]
			},
			"streamSettings": {
				"network": "tcp",
				"security": "tls",
				"tlsSettings": {
					"certificates": [
						{
							"certificateFile": "xxx.crt",
							"keyFile": "xxx.key"
						}
					]
				}
			}
		},
		{
			"listen": "127.0.0.1",
			"port": 10085,
			"protocol": "dokodemo-door",
			"settings": {
				"address": "127.0.0.1"
			},
			"tag": "api"
		}
	],
	"outbounds": [
		{
			"protocol": "freedom",
			"settings": {}
		}
	],
	"routing": {
		"settings": {
			"rules": [
				{
					"inboundTag": [
						"api"
					],
					"outboundTag": "api",
					"type": "field"
				}
			]
		},
		"strategy": "rules"
	}
}
```