dlang操作mysql

d操作mysql

d有个很方便的工具dub，他需要编写格式化的json文件

dub说明见 http://code.dlang.org/package-format?lang=json

我的dub格式，保存为dub.json

{
	"name": "testmysql",
	"description": "test mysql connect.",
	"authors": ["[e-mail]"],
	"homepage": "http://my.oschina.net/u/218155/blog?catalog=3451757",
	"license": "GPL-2.0",
	"dependencies": {
		"vibe-d": "~>0.7.17",
		"mysql-native" :"~>0.1.3",
	}
}

我使用了vibe.d的连接池和mysqlnative的数据库包所以把他们都放进依赖里。

文件结构在当前目录下新建一个目录命名为source 在source下新建一个脚本app.d

最后运行代码 在source的上一级运行 dub即可

具体代码

import mysql.common;
import mysql.connection;
import mysql.result;
import mysql.db;

import std.stdio;ulong testExce(Connection cn,string sql){	auto cmd = Command(cn);
    cmd.sql = sql;
    ulong rowsAffected;
    cmd.execSQL(rowsAffected);
    return rowsAffected;
}ResultSet testRows()(Connection cn, string sql){
    auto cmd = Command(cn);
    cmd.sql = sql;
    return cmd.execSQLResult();
}void testMysql(){
    string connStr = "host=localhost;port=3306;user=root;pwd=123456;db=test";
    auto mdb = new MysqlDB(connStr);
    auto con = mdb.lockConnection();
    scope(exit) con.close();

    //测试增删改查    //add    auto addSql = "insert into country(name,user_age,id)values('helloworld',59,1)";
    writeln("add data is ", testExce(con,addSql));
    //update    auto updateSql = "update country set name = 'helloworld' where id=1 limit 1";
    writeln("update data is ", testExce(con,updateSql));
    //delte    auto delSql = "delete from country  where id=1 limit 1";
    writeln("delete data is ", testExce(con,delSql));
    //select    auto selSql = "select name,user_age,id from country";
    ResultSet rs = testRows(con,selSql);
    int i;
    auto keys = ["name","user_age","id"];
    for(i=0;i<rs.length;i++){
    	foreach(k,v;keys){
    		writef("%s:%s",v,rs[i][k]);
    	}
    	writeln("");
    }
    writeln(rs[0],rs[0][0],rs[0][1]);
}int main(char[][] args) {
	testMysql();	return 0;
}