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

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 |
|---|
二、Controller层代码
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);
}
} 三、dao层和service层实体类就掠过了
这里使用到的有自动生成实体类,Maven的分页
具体操作请看首页
感谢各位的阅读,以上就是“使用SSM+BootStrap实现增删改查和头像上传效果”的内容了,经过本文的学习后,相信大家对使用SSM+BootStrap实现增删改查和头像上传效果这一问题有了更深刻的体会,具体使用情况还需要大家实践验证。这里是创新互联,小编将为大家推送更多相关知识点的文章,欢迎关注!
网站标题:使用SSM+BootStrap实现增删改查和头像上传效果
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