From 33626eeda5e4260be9c5c670b9bd36be64de59c7 Mon Sep 17 00:00:00 2001 From: dugulp Date: Sun, 28 Jul 2024 14:20:07 +0800 Subject: [PATCH] first commit --- .dockerignore | 3 ++ .gitignore | 1 + Dockerfile | 42 +++++++++++++++++++ go.mod | 44 ++++++++++++++++++++ go.sum | 107 ++++++++++++++++++++++++++++++++++++++++++++++++ main.go | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 308 insertions(+) create mode 100644 .dockerignore create mode 100644 .gitignore create mode 100644 Dockerfile create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go diff --git a/.dockerignore b/.dockerignore new file mode 100644 index 0000000..f38de7b --- /dev/null +++ b/.dockerignore @@ -0,0 +1,3 @@ +.git +.gitignore +README.md diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..485dee6 --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +.idea diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..7a7fe24 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,42 @@ +# 使用官方 Go 镜像作为构建环境 +FROM golang:1.21 AS builder + +# 设置工作目录 +WORKDIR /app + +# 复制 go mod 和 sum 文件 +COPY go.mod go.sum ./ + +# 下载依赖 +RUN go mod download + +# 复制源代码 +COPY . . + +# mysql环境变量 +ENV DB_HOST=mysql-container +ENV DB_USER=root +ENV DB_PASSWORD=your_password +ENV DB_NAME=wlzb +ENV DB_PORT=3306 +ENV WEB_URL=http://127.0.0.1:5173 + +# 构建应用 +RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main . + +# 使用轻量级的 alpine 镜像 +FROM alpine:latest + +# 安装 ca-certificates +RUN apk --no-cache add ca-certificates + +WORKDIR /root/ + +# 从 builder 阶段复制编译好的二进制文件 +COPY --from=builder /app/main . + +# 暴露端口 +EXPOSE 8080 + +# 运行 +CMD ["./main"] diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..127c0d9 --- /dev/null +++ b/go.mod @@ -0,0 +1,44 @@ +module wlzbmoxiangsi + +go 1.20 + +require ( + github.com/gin-contrib/cors v1.7.2 + github.com/gin-gonic/gin v1.10.0 + gorm.io/driver/mysql v1.5.7 + gorm.io/gorm v1.25.11 +) + +require ( + filippo.io/edwards25519 v1.1.0 // indirect + github.com/bytedance/sonic v1.11.6 // indirect + github.com/bytedance/sonic/loader v0.1.1 // indirect + github.com/cloudwego/base64x v0.1.4 // indirect + github.com/cloudwego/iasm v0.2.0 // indirect + github.com/gabriel-vasile/mimetype v1.4.3 // indirect + github.com/gin-contrib/sse v0.1.0 // indirect + github.com/go-playground/locales v0.14.1 // indirect + github.com/go-playground/universal-translator v0.18.1 // indirect + github.com/go-playground/validator/v10 v10.20.0 // indirect + github.com/go-sql-driver/mysql v1.8.1 // indirect + github.com/goccy/go-json v0.10.2 // indirect + github.com/jinzhu/inflection v1.0.0 // indirect + github.com/jinzhu/now v1.1.5 // indirect + github.com/json-iterator/go v1.1.12 // indirect + github.com/klauspost/cpuid/v2 v2.2.7 // indirect + github.com/kr/text v0.2.0 // indirect + github.com/leodido/go-urn v1.4.0 // indirect + github.com/mattn/go-isatty v0.0.20 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/modern-go/reflect2 v1.0.2 // indirect + github.com/pelletier/go-toml/v2 v2.2.2 // indirect + github.com/twitchyliquid64/golang-asm v0.15.1 // indirect + github.com/ugorji/go/codec v1.2.12 // indirect + golang.org/x/arch v0.8.0 // indirect + golang.org/x/crypto v0.23.0 // indirect + golang.org/x/net v0.25.0 // indirect + golang.org/x/sys v0.20.0 // indirect + golang.org/x/text v0.15.0 // indirect + google.golang.org/protobuf v1.34.1 // indirect + gopkg.in/yaml.v3 v3.0.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..6ad8b7c --- /dev/null +++ b/go.sum @@ -0,0 +1,107 @@ +filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA= +filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4= +github.com/bytedance/sonic v1.11.6 h1:oUp34TzMlL+OY1OUWxHqsdkgC/Zfc85zGqw9siXjrc0= +github.com/bytedance/sonic v1.11.6/go.mod 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h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8= +gorm.io/gorm v1.25.11 h1:/Wfyg1B/je1hnDx3sMkX+gAlxrlZpn6X0BXRlwXlvHg= +gorm.io/gorm v1.25.11/go.mod h1:xh7N7RHfYlNc5EmcI/El95gXusucDrQnHXe0+CgWcLQ= +nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50= +rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4= diff --git a/main.go b/main.go new file mode 100644 index 0000000..5003783 --- /dev/null +++ b/main.go @@ -0,0 +1,111 @@ +package main + +import ( + "fmt" + "github.com/gin-contrib/cors" + "github.com/gin-gonic/gin" + "gorm.io/driver/mysql" + "gorm.io/gorm" + "os" + "strconv" + "time" +) + +type Wlzb struct { + ID int `json:"id" gorm:"primaryKey"` + PostID string `json:"post_id" gorm:"primaryKey"` + CreateTime time.Time `json:"create_time"` + Author string `json:"author"` + PostMessage string `json:"post_message" gorm:"column:post_massage"` +} + +func (Wlzb) TableName() string { + return "wlzb" +} + +func main() { + r := gin.Default() + + // 自定义 CORS 中间件配置 + config := cors.DefaultConfig() + config.AllowOrigins = []string{fmt.Sprintf("%s", os.Getenv("WEB_URL"))} // 允许的前端源 + config.AllowMethods = []string{"GET", "POST", "PUT", "PATCH", "DELETE", "HEAD", "OPTIONS"} + config.AllowHeaders = []string{"Origin", "Content-Length", "Content-Type", "Authorization"} + config.AllowCredentials = true + + r.Use(cors.New(config)) + + // 数据库连接 + dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local", + os.Getenv("DB_USER"), + os.Getenv("DB_PASSWORD"), + os.Getenv("DB_HOST"), + os.Getenv("DB_PORT"), + os.Getenv("DB_NAME")) + + db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{}) + if err != nil { + panic("failed to connect database") + } + + r.GET("/api/posts", func(c *gin.Context) { + var posts []Wlzb + pageStr := c.DefaultQuery("page", "1") + limitStr := c.DefaultQuery("limit", "10") + + page, err := strconv.Atoi(pageStr) + if err != nil { + c.JSON(400, gin.H{"error": "Invalid page number"}) + return + } + + limit, err := strconv.Atoi(limitStr) + if err != nil { + c.JSON(400, gin.H{"error": "Invalid limit number"}) + return + } + + // 额外的检查 + if page < 1 { + page = 1 + } + + if limit < 1 || limit > 100 { + limit = 10 + } + + offset := (page - 1) * limit + + result := db.Order("id DESC").Limit(limit).Offset(offset).Find(&posts) + if result.Error != nil { + c.JSON(500, gin.H{"error": result.Error.Error()}) + return + } + + c.JSON(200, posts) + }) + + // 新增的 API 路由，根据 ID 查询单个条目 + r.GET("/api/post/:id", func(c *gin.Context) { + id, err := strconv.Atoi(c.Param("id")) + if err != nil { + c.JSON(400, gin.H{"error": "Invalid ID"}) + return + } + + var post Wlzb + result := db.First(&post, id) + if result.Error != nil { + if result.Error == gorm.ErrRecordNotFound { + c.JSON(404, gin.H{"error": "Post not found"}) + } else { + c.JSON(500, gin.H{"error": result.Error.Error()}) + } + return + } + + c.JSON(200, post) + }) + + r.Run(":8080") +}