使用SSM+BootStrap实现增删改查和头像上传效果

这篇文章主要讲解了“使用SSM+BootStrap实现增删改查和头像上传效果”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“使用SSM+BootStrap实现增删改查和头像上传效果”吧！

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先看界面

点击编辑之后

使用SSM+BootStrap实现增删改查和头像上传效果

具体代码请往下看

一、jsp界面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>




Insert title here



















    
        
            学生编号
            学生姓名
            班级名称
            头像
            状态
            操作
        
    
    
        
            
                
                    
                        ×
                        学生信息修改

学生编号：
学生姓名：
所在班级：当前头像：

用户头像：

package com.llh.controller; import java.io.File; import java.io.IOException; import java.util.Date; import java.util.List; import java.util.Random; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.apache.commons.io.FileUtils; import org.springframework.context.annotation.Scope; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.http.ResponseEntity; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import com.github.pagehelper.PageHelper; import com.github.pagehelper.PageInfo; import com.llh.entity.Student; import com.llh.service.StudentService; import net.sf.json.JSONArray; @Controller @Scope("prototype") public class StudentController { @Resource private StudentService studentService; /** * 分页查询所有 * * @param pageCode * @param pageSize * @return */ @RequestMapping(value = "selectAll", produces = "text/html;charset=utf-8") public @ResponseBody String selectAll(int pageCode, int pageSize) { PageHelper.startPage(pageCode, pageSize); List slist = studentService.selectAll(); PageInfo spi = new PageInfo(slist); int count = (int) spi.getTotal(); JSONArray json = JSONArray.fromObject(slist); String str = "{\"total\":" + count + ",\"rows\":" + json.toString() + "}"; return str; } /** * 上传 * * @param request * @param file * @return * @throws IllegalStateException * @throws IOException */ @RequestMapping(value = "upload") public @ResponseBody String upload(HttpServletRequest request, MultipartFile file) throws IllegalStateException, IOException { String name = file.getOriginalFilename(); String path = request.getServletContext().getRealPath("/upload/");// 上传保存的路径 String fileName = changeName(name); String rappendix = "upload/" + fileName; fileName = path + "\\" + fileName; File file1 = new File(fileName); file.transferTo(file1); String str = "{\"src\":\"" + rappendix + "\"}"; return str; } public static String changeName(String oldName) { Random r = new Random(); Date d = new Date(); String newName = oldName.substring(oldName.indexOf('.')); newName = r.nextInt(99999999) + d.getTime() + newName; return newName; } /** * 编辑 * * @param stuid * @param session * @return */ @RequestMapping(value = "editBystuid", produces = "text/html;charset=utf-8") public @ResponseBody String editBystuid(Integer stuid) { System.out.println("编辑"); Student s = studentService.selectByPrimaryKey(stuid); JSONArray json = JSONArray.fromObject(s); String js = json.toString(); System.out.println(js); return js; } /** * 修改 * * @param stuid * @param stuname * @return */ @RequestMapping(value = "updateBystuid", produces = "text/html;charset=utf-8") public @ResponseBody String updateBystuid(@ModelAttribute Student s) { System.out.println("修改中"); System.out.println(s.getStuname() + s.getStuid()+s.getUserimage()); int a = studentService.updateByPrimaryKey(s); if (a != 0) { return "ok"; } return "error"; } /** * 下载 * * @param stuid * @return * @throws IOException */ @RequestMapping(value = "download", produces = "text/html;charset=utf-8") public ResponseEntity download(Integer stuid,HttpServletRequest request) throws IOException { Student s = studentService.selectByPrimaryKey(stuid); String path=request.getServletContext().getRealPath("\\"); String downpath = path+s.getUserimage(); File file1=new File(downpath); //String downloadFileName=new String(downpath.getBytes("UTF-8"),"iso-8859-1"); HttpHeaders heads=new HttpHeaders(); heads.setContentDispositionFormData("attachment", downpath); heads.setContentType(MediaType.APPLICATION_OCTET_STREAM); return new ResponseEntity(FileUtils.readFileToByteArray(file1), heads,HttpStatus.CREATED); } }

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使用SSM+BootStrap实现增删改查和头像上传效果

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