spring boot 2.x 上传文件 (图片) 

import cn.hutool.core.lang.UUID;
import com.eagle.common.dto.ControllerResult;
import com.eagle.common.util.ErrorCode;
import com.eagle.monitor.reportForms.surplus.service.ConstructionStatisticsService;
import com.eagle.monitor.reportForms.surplus.vo.TheKeyTaskDTO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.annotation.Resource;
import java.io.File;
import java.io.IOException;

/**
 * @Author LiGuangLong
 * @Date 2021-10-11 20:12
 * @Version 1.0
 **/
@RestController
@RequestMapping("surplusadd")
@Api(tags = "surplus文件上传---")
public class AddController {
    @Value("${filePath.path}")
    private String filePath;

    @Resource
    private ConstructionStatisticsService constructionStatisticsService;


    @ApiOperation("大屏附件上传接口")
    @PostMapping(value = "/fileUpload")
    public String fileUpload(@RequestParam(value = "file") MultipartFile file) {
        if (file.isEmpty()) {
            return "file文件为空 上传错误";
        }
        // 文件名
        String fileName = file.getOriginalFilename();
        // 后缀名
        assert fileName != null;
        String suffixName = fileName.substring(fileName.lastIndexOf("."));
        // 新文件名
        fileName = UUID.randomUUID() + suffixName;
        File dest = new File(filePath + fileName);
        if (!dest.getParentFile().exists()) {
            dest.getParentFile().mkdirs();
        }
        try {
            file.transferTo(dest);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return filePath + fileName;
    }
}

配置本地映射路径

配置类


package com.eagle.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

/**
 * springboot内置tomcat虚拟路径配置
 * @author TYL
 */
@Configuration
public class FileConfig extends WebMvcConfigurationSupport {
    @Autowired
    private GlobalConfig globalConfig;
    @Value("${filePath.path}")
    private String filepath;

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry){
        registry.addResourceHandler(globalConfig.getFileStaticAccessPath() + "**")
                .addResourceLocations("file:/" + globalConfig.getFileUploadFolder());

        String os = System.getProperty("os.name");
        //如果是Windows系统
        if (os.toLowerCase().startsWith("win")) {
            registry.addResourceHandler("jgdpfile/**").addResourceLocations("file:" + filepath);
        } else {  //linux 和mac
            registry.addResourceHandler("jgdpfile/**").addResourceLocations("file:" + filepath);
        }

        // 配置swagger
        registry.addResourceHandler("/**").addResourceLocations(
                "classpath:/static/");
        registry.addResourceHandler("swagger-ui.html").addResourceLocations(
                "classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations(
                "classpath:/META-INF/resources/webjars/");
        super.addResourceHandlers(registry);
    }
}

jsp前端 当然使用elmentui 更简单

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <form action="/fileUpload" method="post" enctype="multipart/form-data">
        <label>上传图片</label>
        <input type="file" name="file"/>
        <input type="submit" value="上传"/>
    </form>
    <p>图片:</p>
    <img src="${filename }"/>
</body>
</html>

访问http://127.0.0.1:28081/jgdpfile/file_name
切记 类只能被继承一次 多个不起作用

posted @ 2021-10-12 12:55  李广龙  阅读(94)  评论(0)    收藏  举报