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.svn/pristine/6f/6fc6009546d91420a0e3443ed43eb1701600c23a.svn-base

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+package mysqlUtil
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// 转换数据库连接字符串（从C#->Go)
+// connString：C#的数据库连接字符串
+// 返回值：
+// Go的数据库连接字符串
+func ConvertConnectionStringFromCSharpToGo(connString string) string {
+	goConnString := "{userid}:{password}@tcp({datasource}:{port})/{database}?charset={charset}&parseTime=true&loc=Local&timeout={timeout}s||MaxOpenConns={MaxOpenConns}||MaxIdleConns={MaxIdleConns}"
+
+	// 将字符串按;进行切割
+	connStringList := strings.Split(connString, ";")
+	var datasource string      // DataSource=10.162.2.205;
+	var port string            // port=3306;
+	var userid string          // UserId=admin;
+	var password string        // Password=MOQIkaka$#@!1234;
+	var database string        // Database=s201_dzz_log;
+	var charset string         // charset=utf8;
+	var pooling string         // pooling=true;
+	var minimumpoolsize string // MinimumPoolSize=20; or min pool size=20;
+	var maximumpoolsize string // maximumpoolsize=200; or max pool size=200;
+	var commandtimeout string  // command timeout=60;
+
+	// 遍历处理
+	for _, item := range connStringList {
+		// 将字符串按=进行切割
+		subItemList := strings.Split(item, "=")
+
+		// 对每一项进行判断
+		if len(subItemList) != 2 {
+			continue
+		}
+
+		// 先转换为小写字母
+		switch strings.ToLower(subItemList[0]) {
+		case "datasource":
+			datasource = subItemList[1]
+		case "port":
+			port = subItemList[1]
+		case "userid":
+			userid = subItemList[1]
+		case "password":
+			password = subItemList[1]
+		case "database":
+			database = subItemList[1]
+		case "charset":
+			charset = subItemList[1]
+		case "pooling":
+			pooling = subItemList[1]
+		case "minimumpoolsize", "min pool size":
+			minimumpoolsize = subItemList[1]
+		case "maximumpoolsize", "max pool size":
+			maximumpoolsize = subItemList[1]
+		case "command timeout":
+			commandtimeout = subItemList[1]
+		}
+	}
+
+	// 替换占位符
+	goConnString = strings.Replace(goConnString, "{userid}", userid, 1)
+	goConnString = strings.Replace(goConnString, "{password}", password, 1)
+	goConnString = strings.Replace(goConnString, "{datasource}", datasource, 1)
+	goConnString = strings.Replace(goConnString, "{port}", port, 1)
+	goConnString = strings.Replace(goConnString, "{database}", database, 1)
+	goConnString = strings.Replace(goConnString, "{charset}", charset, 1)
+	goConnString = strings.Replace(goConnString, "{timeout}", commandtimeout, 1)
+	if pooling == "true" {
+		goConnString = strings.Replace(goConnString, "{MaxOpenConns}", maximumpoolsize, 1)
+		goConnString = strings.Replace(goConnString, "{MaxIdleConns}", minimumpoolsize, 1)
+	} else {
+		goConnString = strings.Replace(goConnString, "{MaxOpenConns}", "0", 1)
+		goConnString = strings.Replace(goConnString, "{MaxIdleConns}", "0", 1)
+	}
+
+	return goConnString
+}
+
+// 解析连接字符串(obsolete，建议使用NewDBConfig2)
+// connString：数据库连接字符串
+// 返回值
+// 有效的连接字符串
+// 最大开启连接数量
+// 最大空闲连接数量
+// 错误对象
+func ParseConnectionString(connString string) (conn string, maxOpenConns int, maxIdleConns int, err error) {
+	connSlice := strings.Split(connString, "||")
+	length := len(connSlice)
+	if length != 1 && length != 3 {
+		err = fmt.Errorf("connString:%s格式不正确，length:%d", connString, length)
+		return
+	}
+
+	// 获取连接字符串
+	conn = connSlice[0]
+	if conn == "" {
+		err = fmt.Errorf("connString:%s格式不正确，length:%d", connString, length)
+		return
+	}
+
+	// 如果只配置了连接字符串，则MaxOpenConns、MaxIdleConns取默认值
+	if length == 1 {
+		return
+	}
+
+	// 获取连接池相关
+	maxOpenConns_string := strings.Replace(connSlice[1], "MaxOpenConns=", "", 1)
+	maxOpenConns, err = strconv.Atoi(maxOpenConns_string)
+	if err != nil {
+		err = fmt.Errorf("MaxOpenConns必须为int型,连接字符串为：%s", connString)
+		return
+	}
+
+	maxIdleConns_string := strings.Replace(connSlice[2], "MaxIdleConns=", "", 1)
+	maxIdleConns, err = strconv.Atoi(maxIdleConns_string)
+	if err != nil {
+		err = fmt.Errorf("MaxIdleConns必须为int型,连接字符串为：%s", connString)
+		return
+	}
+
+	return
+}
+
+// 连接字符串是否为C#格式
+func IsCSharpStyle(connString string) bool {
+	lowerString := strings.ToLower(connString)
+	if strings.Contains(lowerString, "datasource") && strings.Contains(lowerString, "port") {
+		return true
+	}
+
+	return false
+}
+
+// 连接字符串是否为Go格式
+func IsGoStyle(connString string) bool {
+	lowerString := strings.ToLower(connString)
+	if strings.Contains(lowerString, "@tcp") {
+		return true
+	}
+
+	return false
+}