gin系列-文件上传
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2022-03-25 17:02:56
单文件上传 前端 后端 后端 ......
单文件上传
前端
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>文件上传</title>
</head>
<body>
<form action="/upload" method="post" enctype="multipart/form-data"> //upload跳转控制
<input type="file" name="f1"> //和c.formfile一致
<input type="submit" value="上传">
</form>
</body>
</html>
后端
#main.go
package main
import (
"github.com/gin-gonic/gin"
"net/http"
"path"
)
func main() {
r := gin.default()
//处理multipart forms提交文件时默认的内存限制是32 mib
r.maxmultipartmemory = 8 //router.maxmultipartmemory = 8 << 20 // 8 mib
r.loadhtmlfiles("./index.html")
r.get("/index", func(c *gin.context) {
c.html(http.statusok,"index.html",nil)
})
r.post("/upload", func(c *gin.context) {
//从请求中读取文件
f, err := c.formfile("f1") //和从请求中获取携带的参数一样
if err != nil {
c.json(http.statusbadrequest, gin.h{
"error": err.error(),
})
}else {
//将读取到的文件保存到本地(服务端)
//dst := fmt.sprintf("./%s", f.filename)
dst := path.join("./", f.filename)
_ = c.saveuploadedfile(f,dst)
c.json(http.statusok, gin.h{
"status":"ok",
})
}
})
r.run(":9090")
}
多文件上传
前端
#index.html
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>文件上传</title>
</head>
<body>
<form action="/upload" method="post" enctype="multipart/form-data">
<input type="file" name="f1">
<input type="file" name="f1">
<input type="submit" value="上传">
</form>
</body>
</html>
后端
#main.go
package main
import (
"fmt"
"github.com/gin-gonic/gin"
"log"
"net/http"
"path"
)
func main() {
r := gin.default()
//处理multipart forms提交文件时默认的内存限制是32 mib
r.maxmultipartmemory = 8 //router.maxmultipartmemory = 8 << 20 // 8 mib
r.loadhtmlfiles("./index.html")
r.get("/index", func(c *gin.context) {
c.html(http.statusok,"index.html",nil)
})
r.post("/upload", func(c *gin.context) {
//从请求中读取文件
//f, err := c.formfile("f1") //和从请求中获取携带的参数一样
//if err != nil {
// c.json(http.statusbadrequest, gin.h{
// "error": err.error(),
// })
//}else {
// //将读取到的文件保存到本地(服务端)
// //dst := fmt.sprintf("./%s", f.filename)
// dst := path.join("./", f.filename)
// _ = c.saveuploadedfile(f,dst)
// c.json(http.statusok, gin.h{
// "status":"ok",
// })
//}
form, _ := c.multipartform()
files := form.file["f1"]
for _, file := range files {
log.print(file.filename)
dst := path.join("./", file.filename)
//上传文件到指定的目录
c.saveuploadedfile(file, dst)
}
c.json(http.statusok, gin.h{
"message" : fmt.sprintf("%d files uploaded!", len(files)),
})
})
r.run(":9090")
}