環境
后端代碼
package main
import (
"encoding/base64"
"github.com/gin-gonic/gin"
)
func main() {
engine := gin.Default()
imageBase64 := "iVBORw0KGgoAAAANSUhEUgAAAMgAAABwCAIAAADUo6jRAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEoSURBVHhe7dJBDQAgDAAxtKBnZucQE9yvSSX03B34TiwSYpEQi4RYJMQiIRYJsUiIRUIsEmKREIuEWCTEIiEWCbFIiEVCLBJikRCLhFgkxCIhFgmxSIhFQiwSYpEQi4RYJMQiIRYJsUiIRUIsEmKREIuEWCTEIiEWCbFIiEVCLBJikRCLhFgkxCIhFgmxSIhFQiwSYpEQi4RYJMQiIRYJsUiIRUIsEmKREIuEWCTEIiEWCbFIiEVCLBJikRCLhFgkxCIhFgmxSIhFQiwSYpEQi4RYJMQiIRYJsUiIRUIsEmKREIuEWCTEIiEWCbFIiEVCLBJikRCLhFgkxCIhFgmxSIhFQiwSYpEQi4RYJMQiIRYJsUiIRUIsEmKREIuEWCTEIiEWCbEI7Dx7NR4/Zd9aZQAAAABJRU5ErkJggg=="
imageBuffer, _ := base64.StdEncoding.DecodeString(imageBase64)
engine.GET("/view", func(c *gin.Context) {
_, _ = c.Writer.WriteString(string(imageBuffer))
})
_ = engine.Run()
}
前端代碼
<html>
<img src="http://localhost:8080/view">
</html>
效果
注意事項
- base64 字符串一般會包含頭部
data:image/xxx;base64, 需要去除
