diff --git a/README.md b/README.md
index 3ebe6ce..1b02b7a 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ sudo ./anylink
 
 ## Config
 
-默认配置文件内有详细的注释，根据注释填写配置即可。
+> 默认配置文件内有详细的注释，根据注释填写配置即可。
 
 ```shell
 # 生成后台密码
@@ -87,7 +87,17 @@ sudo ./anylink
 ./anylink tool -s
 ```
 
-[conf/server.toml](server/conf/server.toml)
+> 数据库配置示例
+
+|  db_type   | db_source  |
+|  ----  | ----  |
+| sqlite3  | ./conf/anylink.db |
+| mysql  | user:password@tcp(127.0.0.1:3306)/anylink?charset=utf8 |
+| postgres  | user:password@localhost/anylink?sslmode=verify-full |
+
+> 示例配置文件
+> 
+> [conf/server-sample.toml](server/conf/server-sample.toml)
 
 ## Setting
 
diff --git a/server/admin/api_set.go b/server/admin/api_set.go
index 2430d23..bbd7231 100644
--- a/server/admin/api_set.go
+++ b/server/admin/api_set.go
@@ -5,11 +5,10 @@ import (
 	"net/http"
 	"runtime"
 
-	"github.com/bjdgyc/anylink/dbdata"
-	"github.com/bjdgyc/anylink/sessdata"
-
 	"github.com/bjdgyc/anylink/base"
+	"github.com/bjdgyc/anylink/dbdata"
 	"github.com/bjdgyc/anylink/pkg/utils"
+	"github.com/bjdgyc/anylink/sessdata"
 	"github.com/shirou/gopsutil/cpu"
 	"github.com/shirou/gopsutil/disk"
 	"github.com/shirou/gopsutil/host"
diff --git a/server/base/cfg.go b/server/base/cfg.go
index b19ec10..7f2e8dd 100644
--- a/server/base/cfg.go
+++ b/server/base/cfg.go
@@ -36,19 +36,18 @@ type ServerConfig struct {
 	ServerDTLS     bool   `json:"server_dtls"`
 	AdminAddr      string `json:"admin_addr"`
 	ProxyProtocol  bool   `json:"proxy_protocol"`
-	// DbFile         string `json:"db_file"`
-	DbType    string `json:"db_type"`
-	DbDsn     string `json:"db_dsn"`
-	CertFile  string `json:"cert_file"`
-	CertKey   string `json:"cert_key"`
-	FilesPath string `json:"files_path"`
-	LogPath   string `json:"log_path"`
-	LogLevel  string `json:"log_level"`
-	Pprof     bool   `json:"pprof"`
-	Issuer    string `json:"issuer"`
-	AdminUser string `json:"admin_user"`
-	AdminPass string `json:"admin_pass"`
-	JwtSecret string `json:"jwt_secret"`
+	DbType         string `json:"db_type"`
+	DbSource       string `json:"db_source"`
+	CertFile       string `json:"cert_file"`
+	CertKey        string `json:"cert_key"`
+	FilesPath      string `json:"files_path"`
+	LogPath        string `json:"log_path"`
+	LogLevel       string `json:"log_level"`
+	Pprof          bool   `json:"pprof"`
+	Issuer         string `json:"issuer"`
+	AdminUser      string `json:"admin_user"`
+	AdminPass      string `json:"admin_pass"`
+	JwtSecret      string `json:"jwt_secret"`
 
 	LinkMode    string `json:"link_mode"` // tun tap
 	Ipv4CIDR    string `json:"ipv4_cidr"` // 192.168.1.0/24
diff --git a/server/base/config.go b/server/base/config.go
index 2d4007b..ff02370 100644
--- a/server/base/config.go
+++ b/server/base/config.go
@@ -23,13 +23,13 @@ var configs = []config{
 	{Typ: cfgStr, Name: "server_dtls_addr", Usage: "DTLS监听地址", ValStr: ":4433"},
 	{Typ: cfgStr, Name: "admin_addr", Usage: "后台服务监听地址", ValStr: ":8800"},
 	{Typ: cfgBool, Name: "proxy_protocol", Usage: "TCP代理协议", ValBool: false},
-	{Typ: cfgStr, Name: "db_type", Usage: "数据库类型[sqlite3、mysql、postgres]", ValStr: "sqlite3"},
-	{Typ: cfgStr, Name: "db_dsn", Usage: "数据库dsn", ValStr: "./conf/sqlite3.db"},
+	{Typ: cfgStr, Name: "db_type", Usage: "数据库类型 [sqlite3、mysql、postgres]", ValStr: "sqlite3"},
+	{Typ: cfgStr, Name: "db_source", Usage: "数据库source", ValStr: "./conf/anylink.db"},
 	{Typ: cfgStr, Name: "cert_file", Usage: "证书文件", ValStr: "./conf/vpn_cert.pem"},
 	{Typ: cfgStr, Name: "cert_key", Usage: "证书密钥", ValStr: "./conf/vpn_cert.key"},
 	{Typ: cfgStr, Name: "files_path", Usage: "外部下载文件路径", ValStr: "./conf/files"},
 	{Typ: cfgStr, Name: "log_path", Usage: "日志文件路径,默认标准输出", ValStr: ""},
-	{Typ: cfgStr, Name: "log_level", Usage: "日志等级 debug、info、warn、error", ValStr: "info"},
+	{Typ: cfgStr, Name: "log_level", Usage: "日志等级 [debug、info、warn、error]", ValStr: "info"},
 	{Typ: cfgBool, Name: "pprof", Usage: "开启pprof", ValBool: false},
 	{Typ: cfgStr, Name: "issuer", Usage: "系统名称", ValStr: "XX公司VPN"},
 	{Typ: cfgStr, Name: "admin_user", Usage: "管理用户名", ValStr: "admin"},
diff --git a/server/conf/server-sample.toml b/server/conf/server-sample.toml
index e7f629e..01174fa 100644
--- a/server/conf/server-sample.toml
+++ b/server/conf/server-sample.toml
@@ -4,7 +4,8 @@
 #或者相对于 anylink 二进制文件的路径
 
 #数据文件
-db_file = "./conf/data.db"
+db_type = "sqlite3"
+db_source = "./conf/anylink.db"
 #证书文件
 cert_file = "./conf/vpn_cert.pem"
 cert_key = "./conf/vpn_cert.key"
diff --git a/server/dbdata/db.go b/server/dbdata/db.go
index 0f2d64b..ce7d737 100644
--- a/server/dbdata/db.go
+++ b/server/dbdata/db.go
@@ -20,7 +20,7 @@ func GetXdb() *xorm.Engine {
 
 func initDb() {
 	var err error
-	xdb, err = xorm.NewEngine(base.Cfg.DbType, base.Cfg.DbDsn)
+	xdb, err = xorm.NewEngine(base.Cfg.DbType, base.Cfg.DbSource)
 	// xdb.ShowSQL(true)
 	if err != nil {
 		base.Fatal(err)
diff --git a/server/dbdata/db_orm.go b/server/dbdata/db_orm.go
index 8890b11..b168c36 100644
--- a/server/dbdata/db_orm.go
+++ b/server/dbdata/db_orm.go
@@ -69,12 +69,12 @@ func Find(data interface{}, limit, page int) error {
 }
 
 func CountPrefix(fieldName string, prefix string, data interface{}) int {
-	n, _ := xdb.Where(fieldName + " like '" + prefix + "%' ").Count(data)
+	n, _ := xdb.Where(fieldName+" like ?", prefix+"%").Count(data)
 	return int(n)
 }
 
 func Prefix(fieldName string, prefix string, data interface{}, limit, page int) error {
-	where := xdb.Where(fieldName + " like '" + prefix + "%' ")
+	where := xdb.Where(fieldName+" like ?", prefix+"%")
 	if limit == 0 {
 		return where.Find(data)
 	}
diff --git a/server/dbdata/db_test.go b/server/dbdata/db_test.go
index ba04aa8..f894c0d 100644
--- a/server/dbdata/db_test.go
+++ b/server/dbdata/db_test.go
@@ -12,7 +12,7 @@ import (
 func preIpData() {
 	tmpDb := path.Join(os.TempDir(), "anylink_test.db")
 	base.Cfg.DbType = "sqlite3"
-	base.Cfg.DbDsn = tmpDb
+	base.Cfg.DbSource = tmpDb
 	initDb()
 }
 
diff --git a/server/sessdata/ip_pool_test.go b/server/sessdata/ip_pool_test.go
index 7db6205..c0e702c 100644
--- a/server/sessdata/ip_pool_test.go
+++ b/server/sessdata/ip_pool_test.go
@@ -16,7 +16,7 @@ func preData(tmpDir string) {
 	base.Test()
 	tmpDb := path.Join(tmpDir, "test.db")
 	base.Cfg.DbType = "sqlite3"
-	base.Cfg.DbDsn = tmpDb
+	base.Cfg.DbSource = tmpDb
 	base.Cfg.Ipv4CIDR = "192.168.3.0/24"
 	base.Cfg.Ipv4Start = "192.168.3.1"
 	base.Cfg.Ipv4End = "192.168.3.199"