{"id":3154,"date":"2019-04-17T17:29:53","date_gmt":"2019-04-17T09:29:53","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=3154"},"modified":"2019-04-17T17:29:53","modified_gmt":"2019-04-17T09:29:53","slug":"golang%e5%8e%9f%e7%94%9fsql%e6%93%8d%e4%bd%9cmysql%e6%95%b0%e6%8d%ae%e5%ba%93%e5%a2%9e%e5%88%a0%e6%94%b9%e6%9f%a5","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/3154","title":{"rendered":"Golang\u539f\u751fsql\u64cd\u4f5cMysql\u6570\u636e\u5e93\u589e\u5220\u6539\u67e5"},"content":{"rendered":"
Golang\u8981\u64cd\u4f5cmysql\u6570\u636e\u5e93\uff0c\u9996\u5148\u9700\u8981\u5728\u5f53\u671f\u7cfb\u7edf\u914d\u7f6eGOPATH\uff0c\u56e0\u4e3a\u9700\u8981\u4f7f\u7528go get\u547d\u4ee4\u628a\u9a71\u52a8\u5305\u4e0b\u8f7d\u5230GOPATH\u4e0b\u4f7f\u7528\u3002<\/div>\n
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\u9996\u5148\u914d\u7f6e\u597d\u4f60\u7684GOPATH\uff0c\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u4e0b\u8f7d\u5b89\u88c5mysql\u9a71\u52a8\uff0c\u4e0b\u8f7d\u5b8c\u6210\u4e4b\u540e\u4f1a\u5728GOPATH\u4e0b\u7684src\/github.com\u76ee\u5f55\u4e0b<\/p>\n

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go get -u github.com\/go-sql-driver\/mysql<\/pre>\n
\u7136\u540e\u672c\u5730\u7684mysql\u670d\u52a1\u8981\u542f\u52a8\uff0c\u5e76\u521b\u5efa\u4e00\u4e2a\u8868\u4f5c\u4e3a\u6d4b\u8bd5<\/p>\n
DROP TABLE IF EXISTS `student`;\r\nCREATE TABLE `student` (\r\n  `id` int(11) NOT NULL AUTO_INCREMENT,\r\n  `name` varchar(50) CHARACTER SET latin1 NOT NULL DEFAULT '',\r\n  `age` tinyint(4) DEFAULT '0',\r\n  PRIMARY KEY (`id`)\r\n) ENGINE=MyISAM AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;<\/pre>\n<\/div>\n
\u8fde\u63a5mysql\u6570\u636e\u5e93\u547d\u4ee4<\/p>\n
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\/\/mysql\u6570\u636e\u5e93,\u7528\u6237\u540d:\u5bc6\u7801@tcp\u8fde\u63a5:\u7aef\u53e33306\/test\u5e93?\u5b57\u7b26\u96c6utf8\r\ndb, err := sql.Open(\"mysql\", \"root:root@tcp(127.0.0.1:3306)\/test?charset=utf8\") \/\/\u8fd4\u56de\u8fde\u63a5\u5b57\u7b26\uff0c\u548cerr<\/pre>\n
\u589e\u5220\u6539\u67e5\u4ee3\u7801\uff08\u5bfc\u5165mysql\u9a71\u52a8\u5305\uff0c\u5e76\u4f7f\u7528datebase\/sql Open\u51fd\u6570\u8fdb\u884c\u8fde\u63a5\uff09<\/p>\n
package main\r\n\r\nimport (\r\n    \"database\/sql\" \/\/ \u8fd9\u662f\u4e00\u4e2a\u62bd\u8c61\u5c42\u5305\uff0c\u6bd4\u5982\u533a\u5206mysql\u3001orcal\u7b49\u6570\u636e\u5e93\uff0c\u53ea\u6709\u8fd9\u4e2a\u5305\u662f\u8fde\u63a5\u4e0d\u4e0amysql\u7684\uff0c\u8fd8\u9700\u8981\u642d\u914d\u4e0b\u9762\u7684mysql\u5305\r\n       \"fmt\"\r\n    _ \"github.com\/go-sql-driver\/mysql\" \/\/\u5bfc\u5165mysql\u9a71\u52a8\u5305\r\n)\r\n\r\nfunc init() {\r\n\r\n}\r\n\r\nfunc main() {\r\n    db, err := sql.Open(\"mysql\", \"root:root@tcp(127.0.0.1:3306)\/test?charset=utf8\")\r\n    if err != nil {\r\n        panic(err)\r\n    }\r\n    \/\/\u589e\u52a0\u6570\u636e\r\n        stmt, err := db.Prepare(`INSERT student (name,age) values (?,?)`)\r\n        res, err := stmt.Exec(\"wangwu\", 26)\r\n        id, err := res.LastInsertId()\r\n        fmt.Println(\"\u81ea\u589eid=\", id)\r\n    \/\/\u4fee\u6539\u6570\u636e\r\n        stmt, err := db.Prepare(`UPDATE student SET age=? WHERE id=?`)\r\n        res, err := stmt.Exec(21, 5)\r\n        num, err := res.RowsAffected() \/\/\u5f71\u54cd\u884c\u6570\r\n        fmt.Println(num)\r\n    \/\/\u5220\u9664\u6570\u636e\r\n        stmt, err := db.Prepare(`DELETE FROM student WHERE id=?`)\r\n        res, err := stmt.Exec(5)\r\n        num, err := res.RowsAffected()\r\n        fmt.Println(num)\r\n    \/\/\u67e5\u8be2\u6570\u636e\r\n    rows, err := db.Query(\"SELECT * FROM student\")\r\n\r\n    \/\/--------\u7b80\u5355\u4e00\u884c\u4e00\u884c\u8f93\u51fa---start\r\n    \/\/    for rows.Next() { \/\/\u6ee1\u8db3\u6761\u4ef6\u4f9d\u6b21\u4e0b\u4e00\u5c42\r\n    \/\/        var id int\r\n    \/\/        var name string\r\n    \/\/        var age int\r\n    \/\/        rows.Columns()\r\n\r\n    \/\/        err = rows.Scan(&id, &name, &age)\r\n    \/\/        fmt.Println(id)\r\n    \/\/        fmt.Println(name)\r\n    \/\/        fmt.Println(age)\r\n    \/\/    }\r\n    \/\/--------\u7b80\u5355\u4e00\u884c\u4e00\u884c\u8f93\u51fa---end\r\n\r\n    \/\/--------\u904d\u5386\u653e\u5165map----start\r\n    \/\/\u6784\u9020scanArgs\u3001values\u4e24\u4e2a\u6570\u7ec4\uff0cscanArgs\u7684\u6bcf\u4e2a\u503c\u6307\u5411values\u76f8\u5e94\u503c\u7684\u5730\u5740\r\n    columns, _ := rows.Columns()\r\n    scanArgs := make([]interface{}, len(columns))\r\n    values := make([]interface{}, len(columns))\r\n\r\n    for i := range values {\r\n        scanArgs[i] = &values[i]\r\n    }\r\n\r\n    for rows.Next() {\r\n        \/\/\u5c06\u884c\u6570\u636e\u4fdd\u5b58\u5230record\u5b57\u5178\r\n        err = rows.Scan(scanArgs...)\r\n        record := make(map[string]string)\r\n        for i, col := range values {\r\n            if col != nil {\r\n                record[columns[i]] = string(col.([]byte))\r\n            }\r\n        }\r\n        fmt.Println(record)\r\n    }\r\n    \/\/--------\u904d\u5386\u653e\u5165map----end\r\n}<\/pre>\n<\/div>\n
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<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
Golang\u8981\u64cd\u4f5cmysql\u6570\u636e\u5e93\uff0c\u9996\u5148<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[122],"class_list":["post-3154","post","type-post","status-publish","format-standard","hentry","tag-06-godocker"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/3154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=3154"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/3154\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=3154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=3154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=3154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}