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头像上传和展示

时间:2022-10-10 15:36:01浏览次数:47  
标签:String 展示 upload 头像 file path 上传 originalFilename

头像上传和展示

1.环境:

​ springboot

2.前端

<form action="dept/upload" method="post" enctype="multipart/form-data">
    <input type="file" name="file" />
    <input type="submit">
</form>
<image src="http://localhost/upload/a.jpg"></image>

也可以使用vue+element

3.后端:

1.配置springmvc资源映射
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class FilePathConfig implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/upload/**")
                .addResourceLocations("file:D:/img/");
    }
}

这里我选择D盘下的img文件夹,你们随意

测试:

​ 1.在D盘放一张图片a.jpg

​ 2.启动springboot项目访问http://localhost/upload/a.jpg

​ 3.如果可以看到图片测试成功

2.开始上传图片

上传图片代码:

 @PostMapping("/upload")
    public String upload(@RequestParam("file")MultipartFile file){
        try{
        String originalFilename = file.getOriginalFilename();
        File path = new File("D:/img");
        if (!path.exists()){
            path.mkdirs();
        }
        Assert.notNull(originalFilename,"没有上传文件");
        String newName = String.valueOf(System.currentTimeMillis()).concat(originalFilename.substring(originalFilename.lastIndexOf(".")));
        File file1 = new File(path.getAbsolutePath() + "/" + newName);
        file.transferTo(file1);
        return "/shopdemo/upload/".concat(newName);
    }catch (Exception e){
        return "上传失败!";
        }
    }

这里上传的图片后返回的是图片的路径

4.显示图片

<image src="上传返回的图片路径"></image>

标签:String,展示,upload,头像,file,path,上传,originalFilename
From: https://www.cnblogs.com/WangJingjun/p/16775877.html

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