Layui 上传图片到磁盘上 + Tomcat 配置虚拟路径

Layui 上传图片到磁盘上 + Tomcat 配置虚拟路径

Tomcat 配置虚拟路径

找到 eclipse 中 tomcat 下面的 server.xml 文件,在 Host 标签里面添加 。
其中,docBase 表示的是图片的实际路径, path 表示的是图片的虚拟路径。

在项目根目录下面建立图片的访问路径,即 path 指向的是图片的虚拟路径,如下所示：

图片在磁盘上的实际保存地址如下：

数据库中存放图片的访问路径：

Layui 上传图片到磁盘上

index.jsp 文件

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>









    
大家好，我来复习springmvc了
    
            

        

            

                
学号
                
姓名
                
年龄
                
性别
                
班级
            
        
        

                
${student.sno }
                
${student.sname }
                
${student.age }
                
${student.gender }
                
${student.grade }
            
        
    
    

        
常规使用：普通图片上传
    
    

        
            上传图片
        
        

            
        
    
    
    

StudentInfoSelect.java 文件

package com.libin.springmvc.controller;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;

import com.libin.springmvc.entity.People;
import com.libin.springmvc.entity.Student;
import com.libin.springmvc.pub.PubConfig;
import com.libin.springmvc.service.PeopleService;
import com.libin.springmvc.service.StudentService;
import com.libin.springmvc.utils.WebUtil;

@RequestMapping("/student")
@Controller
public class StudentInfoSelect {

    @Resource
    private StudentService studentService;

    @Resource
    private PeopleService peopleService;

    @Autowired
    private PubConfig pubConfig;

    @RequestMapping("/info")
    public String studentInfo(Model model, Student student) {
        List list = studentService.findAllStudent();
        People peopleName = new People();
        peopleName.setName("Tom");
        People people = peopleService.getPeopleByName(peopleName);
        model.addAttribute("list", list);
        model.addAttribute("people", people);
        return "index";
    }

    @RequestMapping("/imageUpload")
    public void imageUpload(HttpServletRequest request, HttpServletResponse response, MultipartFile file) {
        Map dataMap = new HashMap<>();
        if (!file.isEmpty()) {
            try {
                // String contextPath = PropertiesUtil.getValue("imageUploadPath") + "\\image";
                String contextPath = pubConfig.getImageUploadPath() + "\\image";
                String img = uploadFile(file, contextPath);
                String imgPath = "upload/image/" + img;
                dataMap.put("code", 0);
                dataMap.put("image", imgPath);
                People people = new People();
                people.setName("Tom");
                people.setImagepath(imgPath);
                int row = peopleService.updatePeopleImage(people);
                dataMap.put("row", row);
            } catch (Exception e) {
                dataMap.put("code", 1);
                e.printStackTrace();
            }
        }
        WebUtil.responseOutWithJson(response, dataMap);
    }

    public static String uploadFile(MultipartFile file, String filePath) throws IllegalStateException, IOException {
        Random r = new Random();
        String name = file.getOriginalFilename(); // 文件的真实名称
        String fileName = getShortSystemTime() + r.nextInt(99999999) + "_" + name;
        File tempFile = new File(filePath, fileName);
        if (!tempFile.getParentFile().exists()) {
            tempFile.getParentFile().mkdirs();
        }
        if (tempFile.exists()) {
            tempFile.delete();
        }
        tempFile.createNewFile();
        file.transferTo(tempFile);
        return tempFile.getName();
    }

    public static String getShortSystemTime() {
        SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");// 设置日期格式
        return df.format(new Date()).toString();
    }

}

显示界面

完整项目地址：testspringmvc

项目运行界面如下：

访问图片如下：

转载于:https://www.cnblogs.com/hglibin/p/10392078.html