更改为MD5加密，并从配置文件读取用户名和密码

code/login.go

 package code
 
 import (
+	"crypto/md5"
 	"crypto/rand"
 	"encoding/base64"
+	"encoding/json"
 	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
 	"regexp"
+	"sync"
 )
 
-var userMap = make(map[string]string)
+//var userMap = make(map[string]string)
 var sessionIdMap = make(map[string]string)
+var configPath string = "E:\\gotest\\test.json"
+
+type Configs map[string]json.RawMessage
+type MainConfig struct {
+}
+
+var conf *MainConfig
+
+var confs Configs
+var instanceOnce sync.Once
 
 func init() {
-	userMap["weblog"] = "MTIzNDU2"
+	//userMap["weblog"] = "MTIzNDU2"
 	sessionIdMap["S1oI0nPch9PzJ0ClGEODdzbqcq85JK7YwnLesuTWayU="] = ""
 }
 
+//初始化读取配置文件
+func Init(path string) *MainConfig {
+	if conf != nil && path != configPath {
+		log.Printf("the config is already initialized, oldPath=%s, path=%s", configPath, path)
+	}
+	instanceOnce.Do(func() {
+		allConfigs, mainConfig := LoadConfig(path)
+		configPath = path
+		conf = mainConfig
+		confs = allConfigs
+	})
+
+	return conf
+}
+
+//获取配置文件路径
+func ConfigPath() string {
+	return configPath
+}
+
 /**
  * 验证用户
  * 密码加密解密
@@ -22,15 +58,18 @@ func init() {
  */
 func VerifyUser(name string, pwd string) (result bool, msg string) {
 	// 先进行校验
+
 	if !UserNameVerify(name) || !UserPwdVerify(pwd) {
 		return false, "密码或用户名格式错误"
 	}
-	// 密码加密
-	pwd = EnPwdCode(pwd)
-	if mapPwd, ok := userMap[name]; ok {
-		if mapPwd == pwd {
+	path := ConfigPath()
+	//初始化配置文件
+	Init(path)
+	// 密码md5加密
+	pwd = EnMD5PwdCode(pwd)
+	if mapPwd, ok := confs[name]; ok {
+		if CutWord(string(mapPwd)) == pwd {
 			token := GenerateRandomString(32)
-			fmt.Println(token)
 			sessionIdMap[token] = name
 			return true, token
 		} else {
@@ -61,6 +100,17 @@ func EnPwdCode(pwd string) string {
 	return base64.StdEncoding.EncodeToString([]byte(pwd))
 }
 
+//加密md5
+func EnMD5PwdCode(str string) string {
+	m := md5.New()
+	_, err := io.WriteString(m, str)
+	if err != nil {
+		log.Fatal(err)
+	}
+	arr := m.Sum(nil)
+	return fmt.Sprintf("%x", arr)
+}
+
 //解密base64
 func DePwdCode(pwd string) string {
 	decoded, _ := base64.StdEncoding.DecodeString(pwd)
@@ -100,3 +150,33 @@ func GenerateRandomString(s int) string {
 	b, _ := GenerateRandomBytes(s)
 	return base64.URLEncoding.EncodeToString(b)
 }
+
+//去掉双引号
+func CutWord(s string) string {
+	if len(s) >= 2 {
+		if c := s[len(s)-1]; s[0] == c && (c == '"' || c == '\'') {
+			return s[1 : len(s)-1]
+		}
+	}
+	return s
+}
+
+//从配置文件中载入json字符串
+func LoadConfig(path string) (Configs, *MainConfig) {
+	buf, err := ioutil.ReadFile(path)
+	if err != nil {
+		log.Panicln("load config conf failed: ", err)
+	}
+	mainConfig := &MainConfig{}
+	err = json.Unmarshal(buf, mainConfig)
+	if err != nil {
+		log.Panicln("decode config file failed:", string(buf), err)
+	}
+	allConfigs := make(Configs, 0)
+	err = json.Unmarshal(buf, &allConfigs)
+	if err != nil {
+		log.Panicln("decode config file failed:", string(buf), err)
+	}
+
+	return allConfigs, mainConfig
+}