{"id":784,"date":"2024-07-15T19:18:01","date_gmt":"2024-07-15T11:18:01","guid":{"rendered":"https:\/\/www.madbull.site\/?p=784"},"modified":"2024-07-15T19:23:42","modified_gmt":"2024-07-15T11:23:42","slug":"gorm%e5%ae%9e%e7%8e%b0mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e7%9a%84%e5%a2%9e%e5%88%a0%e6%94%b9%e6%9f%a5","status":"publish","type":"post","link":"https:\/\/www.madbull.site\/?p=784","title":{"rendered":"gorm\u5b9e\u73b0mysql\u6570\u636e\u5e93\u7684\u589e\u5220\u6539\u67e5"},"content":{"rendered":"\n
\n

\u4ee3\u7801<\/strong><\/p>\n\n\n\n

package main\n\nimport (\n    \"fmt\"\n    \"gorm.io\/driver\/mysql\"\n    \"gorm.io\/gorm\"\n    \"log\"\n)\n\n\/\/ orm\u7ed3\u6784\ntype Student struct {\n    Num int      `gorm:\"primaryKey\"`\n    Name string  `gorm:\"type:varchar(32);not null;primaryKey\"`\n    Class int    `gorm:\"type:int(5)\"`\n    Grade int    `gorm:\"type:int(5)\"`\n    Age int      `gorm:\"type:int(4)\"`\n}\n\nfunc main() {\n    host := \"xx.xx.xx.xx\"\n    port := 3306\n    username := \"uuuu\"\n    password := \"pppp\"\n    dbname := \"dddd\"\n\n    \/\/ \u8bbe\u7f6e\u8fde\u63a5\u6307\u4ee4\n    dsn := fmt.Sprintf(\"%s:%s@tcp(%s:%d)\/%s?parseTime=true\", username, password, host, port, dbname)\n\n    \/\/ \u8fde\u63a5mysql\n    db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{}) \n    if err != nil {\n        log.Fatal(err)\n    }\n\n    \/\/ \u81ea\u52a8\u521b\u5efa\u8868\n    db.AutoMigrate(&Student{})\n\n    \/\/ \u63d2\u5165\u6570\u636e\uff0c\u4f7f\u7528\u5207\u7247\n    var stdnts = []Student{ {Num:121, Name:\"xiaohua\", Class: 2, Grade: 1 , Age:12}, \n                            {Num:111, Name:\"xiaoqing\", Class: 1, Grade: 1 , Age:12},\n                            {Num:112, Name:\"xiaolan\", Class: 1, Grade: 1 , Age:12},\n                            {Num:113, Name:\"xiaoming\", Class: 1, Grade: 1 , Age:12},\n                            }\n    db.Create(&stdnts)\n\n    \/\/ \u67e5\u8be2\u6570\u636e\n    var stdnts_2 []Student\n    db.Where(&Student{Grade: 1, Class: 1}).Find(&stdnts_2)\n\n    log.Println(stdnts_2) \n\n    \/\/ \u4fee\u6539\u6570\u636e\uff0c\u5148\u67e5\u51fa\u5b8c\u6574\u7684\u6570\u636e\n    var stdnt Student\n    db.Where(&Student{Num: 111}).Find(&stdnt)\n    \/\/ \u5bf9\u6570\u636e\u8fdb\u884c\u4fee\u6539\uff0c\u66f4\u65b0\u3002\n    stdnt.Class = 3\n    db.Save(stdnt)\n}<\/code><\/pre>\n\n\n\n
<\/div>\n<\/div>\n\n\n\n
\u8fd0\u884c\u7a0b\u5e8f\u3002<\/strong><\/p>\n\n\n\n
\u9700\u8981\u4fee\u6539\u4ee3\u7801\u4e2d\u7684\u4e3b\u673a\u5730\u5740\u3001\u7528\u6237\u540d\u3001\u5bc6\u7801\u7b49\u4fe1\u606f\u3002\u6ce8\u610f\u521b\u5efago.mod\u6587\u4ef6\uff0c\u4f7f\u7528go mod tidy\u4e0b\u8f7d\u4f9d\u8d56\u3002\u5b8c\u6210\u540e\u624d\u53ef\u6267\u884c\u3002\u8054\u7f51\u95ee\u9898\u53ef\u901a\u8fc7\u8bbe\u7f6e GOPROXY=https:\/\/goproxy.cn<\/strong> \u73af\u5883\u53d8\u91cf\u89e3\u51b3\u3002<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
<\/div>\n\n\n\n
\u6570\u636e\u5e93<\/strong><\/p>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
gorm\u5b9e\u73b0mysql\u6570\u636e\u5e93\u7684\u589e\u5220\u6539\u67e5<\/p>\n","protected":false},"author":1,"featured_media":727,"comment_status":"open","ping_status":"open","sticky":false,"template":"single-with-sidebar","format":"standard","meta":{"footnotes":""},"categories":[286,116,5,154],"tags":[323,91,127,20],"class_list":["post-784","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-go","category-mysql","category-database","category-154","tag-gorm","tag-mysql","tag-127","tag-20"],"_links":{"self":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts\/784","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=784"}],"version-history":[{"count":4,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts\/784\/revisions"}],"predecessor-version":[{"id":791,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts\/784\/revisions\/791"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/media\/727"}],"wp:attachment":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}