做韦恩图的网站电脑培训学校哪家好

随着农机电招行业的不断发展，农机电招在现实生活中的使用和普及，农机电招行业成为近年内出现的一个新行业，并且能够成为大群众广为认可和接受的行为和选择。设计农机电招平台的目的就是借助计算机让复杂的销售操作变简单，变高效。

农机电招平台采用了B/S结构，JAVA作为开发语言，数据库采用了B/S结构，Mysql数据库进行开发。该系统包括前台操作和后台管理两个部分，一方面，为用户提供首页，农机，系统公告，个人中心，后台管理等功能；另一方面，为管理员提供首页，个人中心，农机机主管理，使用者管理，农机类型管理，农机管理，农机预约管理，系统管理等功能。

【关键词】农机电招；JAVA；B/S结构

springboot农机电招平台源码和论文326

演示视频：

Abstract

With the continuous development of the agricultural mechanical and electrical recruitment industry, the use and popularization of agricultural mechanical and electrical recruitment in real life, the agricultural mechanical and electrical recruitment industry has become a new industry that has emerged in recent years, and can become a behavior and choice widely recognized and accepted by the masses. The purpose of designing the agricultural mechanical and electrical recruitment platform is to make complex sales operations simple and efficient with the help of computers.

The agricultural mechanical and electrical recruitment platform adopts the B/S structure, JAVA as the development language, the database adopts the B/S structure, and the Mysql database is developed. The system includes two parts of front-end operation and background management, on the one hand, to provide users with the home page, agricultural machinery, system announcements, personal center, background management and other functions; on the other hand, to provide administrators with homepage, personal center, agricultural machinery master management, user management, agricultural machinery type management, agricultural machinery management, agricultural machinery appointment management, system management and other functions.

【Keywords】Agricultural mechanical and electrical moves; JAVA; B/S structure

package com.controller;import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;import com.utils.ValidatorUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.annotation.IgnoreAuth;import com.entity.NongjijizhuEntity;
import com.entity.view.NongjijizhuView;import com.service.NongjijizhuService;
import com.service.TokenService;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.MD5Util;
import com.utils.MPUtil;
import com.utils.CommonUtil;
import java.io.IOException;/*** 农机机主* 后端接口* @author * @email * @date 2022-04-18 15:38:13*/
@RestController
@RequestMapping("/nongjijizhu")
public class NongjijizhuController {@Autowiredprivate NongjijizhuService nongjijizhuService;@Autowiredprivate TokenService tokenService;/*** 登录*/@IgnoreAuth@RequestMapping(value = "/login")public R login(String username, String password, String captcha, HttpServletRequest request) {NongjijizhuEntity user = nongjijizhuService.selectOne(new EntityWrapper<NongjijizhuEntity>().eq("jizhuzhanghao", username));if(user==null || !user.getMima().equals(password)) {return R.error("账号或密码不正确");}String token = tokenService.generateToken(user.getId(), username,"nongjijizhu",  "农机机主" );return R.ok().put("token", token);}/*** 注册*/@IgnoreAuth@RequestMapping("/register")public R register(@RequestBody NongjijizhuEntity nongjijizhu){//ValidatorUtils.validateEntity(nongjijizhu);NongjijizhuEntity user = nongjijizhuService.selectOne(new EntityWrapper<NongjijizhuEntity>().eq("jizhuzhanghao", nongjijizhu.getJizhuzhanghao()));if(user!=null) {return R.error("注册用户已存在");}Long uId = new Date().getTime();nongjijizhu.setId(uId);nongjijizhuService.insert(nongjijizhu);return R.ok();}/*** 退出*/@RequestMapping("/logout")public R logout(HttpServletRequest request) {request.getSession().invalidate();return R.ok("退出成功");}/*** 获取用户的session用户信息*/@RequestMapping("/session")public R getCurrUser(HttpServletRequest request){Long id = (Long)request.getSession().getAttribute("userId");NongjijizhuEntity user = nongjijizhuService.selectById(id);return R.ok().put("data", user);}/*** 密码重置*/@IgnoreAuth@RequestMapping(value = "/resetPass")public R resetPass(String username, HttpServletRequest request){NongjijizhuEntity user = nongjijizhuService.selectOne(new EntityWrapper<NongjijizhuEntity>().eq("jizhuzhanghao", username));if(user==null) {return R.error("账号不存在");}user.setMima("123456");nongjijizhuService.updateById(user);return R.ok("密码已重置为：123456");}/*** 后端列表*/@RequestMapping("/page")public R page(@RequestParam Map<String, Object> params,NongjijizhuEntity nongjijizhu,HttpServletRequest request){EntityWrapper<NongjijizhuEntity> ew = new EntityWrapper<NongjijizhuEntity>();PageUtils page = nongjijizhuService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, nongjijizhu), params), params));return R.ok().put("data", page);}/*** 前端列表*/@IgnoreAuth@RequestMapping("/list")public R list(@RequestParam Map<String, Object> params,NongjijizhuEntity nongjijizhu, HttpServletRequest request){EntityWrapper<NongjijizhuEntity> ew = new EntityWrapper<NongjijizhuEntity>();PageUtils page = nongjijizhuService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, nongjijizhu), params), params));return R.ok().put("data", page);}/*** 列表*/@RequestMapping("/lists")public R list( NongjijizhuEntity nongjijizhu){EntityWrapper<NongjijizhuEntity> ew = new EntityWrapper<NongjijizhuEntity>();ew.allEq(MPUtil.allEQMapPre( nongjijizhu, "nongjijizhu")); return R.ok().put("data", nongjijizhuService.selectListView(ew));}/*** 查询*/@RequestMapping("/query")public R query(NongjijizhuEntity nongjijizhu){EntityWrapper< NongjijizhuEntity> ew = new EntityWrapper< NongjijizhuEntity>();ew.allEq(MPUtil.allEQMapPre( nongjijizhu, "nongjijizhu")); NongjijizhuView nongjijizhuView =  nongjijizhuService.selectView(ew);return R.ok("查询农机机主成功").put("data", nongjijizhuView);}/*** 后端详情*/@RequestMapping("/info/{id}")public R info(@PathVariable("id") Long id){NongjijizhuEntity nongjijizhu = nongjijizhuService.selectById(id);return R.ok().put("data", nongjijizhu);}/*** 前端详情*/@IgnoreAuth@RequestMapping("/detail/{id}")public R detail(@PathVariable("id") Long id){NongjijizhuEntity nongjijizhu = nongjijizhuService.selectById(id);return R.ok().put("data", nongjijizhu);}/*** 后端保存*/@RequestMapping("/save")public R save(@RequestBody NongjijizhuEntity nongjijizhu, HttpServletRequest request){nongjijizhu.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(nongjijizhu);NongjijizhuEntity user = nongjijizhuService.selectOne(new EntityWrapper<NongjijizhuEntity>().eq("jizhuzhanghao", nongjijizhu.getJizhuzhanghao()));if(user!=null) {return R.error("用户已存在");}nongjijizhu.setId(new Date().getTime());nongjijizhuService.insert(nongjijizhu);return R.ok();}/*** 前端保存*/@RequestMapping("/add")public R add(@RequestBody NongjijizhuEntity nongjijizhu, HttpServletRequest request){nongjijizhu.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(nongjijizhu);NongjijizhuEntity user = nongjijizhuService.selectOne(new EntityWrapper<NongjijizhuEntity>().eq("jizhuzhanghao", nongjijizhu.getJizhuzhanghao()));if(user!=null) {return R.error("用户已存在");}nongjijizhu.setId(new Date().getTime());nongjijizhuService.insert(nongjijizhu);return R.ok();}/*** 修改*/@RequestMapping("/update")public R update(@RequestBody NongjijizhuEntity nongjijizhu, HttpServletRequest request){//ValidatorUtils.validateEntity(nongjijizhu);nongjijizhuService.updateById(nongjijizhu);//全部更新return R.ok();}/*** 删除*/@RequestMapping("/delete")public R delete(@RequestBody Long[] ids){nongjijizhuService.deleteBatchIds(Arrays.asList(ids));return R.ok();}/*** 提醒接口*/@RequestMapping("/remind/{columnName}/{type}")public R remindCount(@PathVariable("columnName") String columnName, HttpServletRequest request, @PathVariable("type") String type,@RequestParam Map<String, Object> map) {map.put("column", columnName);map.put("type", type);if(type.equals("2")) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");Calendar c = Calendar.getInstance();Date remindStartDate = null;Date remindEndDate = null;if(map.get("remindstart")!=null) {Integer remindStart = Integer.parseInt(map.get("remindstart").toString());c.setTime(new Date()); c.add(Calendar.DAY_OF_MONTH,remindStart);remindStartDate = c.getTime();map.put("remindstart", sdf.format(remindStartDate));}if(map.get("remindend")!=null) {Integer remindEnd = Integer.parseInt(map.get("remindend").toString());c.setTime(new Date());c.add(Calendar.DAY_OF_MONTH,remindEnd);remindEndDate = c.getTime();map.put("remindend", sdf.format(remindEndDate));}}Wrapper<NongjijizhuEntity> wrapper = new EntityWrapper<NongjijizhuEntity>();if(map.get("remindstart")!=null) {wrapper.ge(columnName, map.get("remindstart"));}if(map.get("remindend")!=null) {wrapper.le(columnName, map.get("remindend"));}int count = nongjijizhuService.selectCount(wrapper);return R.ok().put("count", count);}}

package com.controller;import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;import com.utils.ValidatorUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.annotation.IgnoreAuth;import com.entity.ShiyongzheEntity;
import com.entity.view.ShiyongzheView;import com.service.ShiyongzheService;
import com.service.TokenService;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.MD5Util;
import com.utils.MPUtil;
import com.utils.CommonUtil;
import java.io.IOException;/*** 使用者* 后端接口* @author * @email * @date 2022-04-18 15:38:13*/
@RestController
@RequestMapping("/shiyongzhe")
public class ShiyongzheController {@Autowiredprivate ShiyongzheService shiyongzheService;@Autowiredprivate TokenService tokenService;/*** 登录*/@IgnoreAuth@RequestMapping(value = "/login")public R login(String username, String password, String captcha, HttpServletRequest request) {ShiyongzheEntity user = shiyongzheService.selectOne(new EntityWrapper<ShiyongzheEntity>().eq("yonghuming", username));if(user==null || !user.getMima().equals(password)) {return R.error("账号或密码不正确");}String token = tokenService.generateToken(user.getId(), username,"shiyongzhe",  "使用者" );return R.ok().put("token", token);}/*** 注册*/@IgnoreAuth@RequestMapping("/register")public R register(@RequestBody ShiyongzheEntity shiyongzhe){//ValidatorUtils.validateEntity(shiyongzhe);ShiyongzheEntity user = shiyongzheService.selectOne(new EntityWrapper<ShiyongzheEntity>().eq("yonghuming", shiyongzhe.getYonghuming()));if(user!=null) {return R.error("注册用户已存在");}Long uId = new Date().getTime();shiyongzhe.setId(uId);shiyongzheService.insert(shiyongzhe);return R.ok();}/*** 退出*/@RequestMapping("/logout")public R logout(HttpServletRequest request) {request.getSession().invalidate();return R.ok("退出成功");}/*** 获取用户的session用户信息*/@RequestMapping("/session")public R getCurrUser(HttpServletRequest request){Long id = (Long)request.getSession().getAttribute("userId");ShiyongzheEntity user = shiyongzheService.selectById(id);return R.ok().put("data", user);}/*** 密码重置*/@IgnoreAuth@RequestMapping(value = "/resetPass")public R resetPass(String username, HttpServletRequest request){ShiyongzheEntity user = shiyongzheService.selectOne(new EntityWrapper<ShiyongzheEntity>().eq("yonghuming", username));if(user==null) {return R.error("账号不存在");}user.setMima("123456");shiyongzheService.updateById(user);return R.ok("密码已重置为：123456");}/*** 后端列表*/@RequestMapping("/page")public R page(@RequestParam Map<String, Object> params,ShiyongzheEntity shiyongzhe,HttpServletRequest request){EntityWrapper<ShiyongzheEntity> ew = new EntityWrapper<ShiyongzheEntity>();PageUtils page = shiyongzheService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, shiyongzhe), params), params));return R.ok().put("data", page);}/*** 前端列表*/@IgnoreAuth@RequestMapping("/list")public R list(@RequestParam Map<String, Object> params,ShiyongzheEntity shiyongzhe, HttpServletRequest request){EntityWrapper<ShiyongzheEntity> ew = new EntityWrapper<ShiyongzheEntity>();PageUtils page = shiyongzheService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, shiyongzhe), params), params));return R.ok().put("data", page);}/*** 列表*/@RequestMapping("/lists")public R list( ShiyongzheEntity shiyongzhe){EntityWrapper<ShiyongzheEntity> ew = new EntityWrapper<ShiyongzheEntity>();ew.allEq(MPUtil.allEQMapPre( shiyongzhe, "shiyongzhe")); return R.ok().put("data", shiyongzheService.selectListView(ew));}/*** 查询*/@RequestMapping("/query")public R query(ShiyongzheEntity shiyongzhe){EntityWrapper< ShiyongzheEntity> ew = new EntityWrapper< ShiyongzheEntity>();ew.allEq(MPUtil.allEQMapPre( shiyongzhe, "shiyongzhe")); ShiyongzheView shiyongzheView =  shiyongzheService.selectView(ew);return R.ok("查询使用者成功").put("data", shiyongzheView);}/*** 后端详情*/@RequestMapping("/info/{id}")public R info(@PathVariable("id") Long id){ShiyongzheEntity shiyongzhe = shiyongzheService.selectById(id);return R.ok().put("data", shiyongzhe);}/*** 前端详情*/@IgnoreAuth@RequestMapping("/detail/{id}")public R detail(@PathVariable("id") Long id){ShiyongzheEntity shiyongzhe = shiyongzheService.selectById(id);return R.ok().put("data", shiyongzhe);}/*** 后端保存*/@RequestMapping("/save")public R save(@RequestBody ShiyongzheEntity shiyongzhe, HttpServletRequest request){shiyongzhe.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(shiyongzhe);ShiyongzheEntity user = shiyongzheService.selectOne(new EntityWrapper<ShiyongzheEntity>().eq("yonghuming", shiyongzhe.getYonghuming()));if(user!=null) {return R.error("用户已存在");}shiyongzhe.setId(new Date().getTime());shiyongzheService.insert(shiyongzhe);return R.ok();}/*** 前端保存*/@RequestMapping("/add")public R add(@RequestBody ShiyongzheEntity shiyongzhe, HttpServletRequest request){shiyongzhe.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(shiyongzhe);ShiyongzheEntity user = shiyongzheService.selectOne(new EntityWrapper<ShiyongzheEntity>().eq("yonghuming", shiyongzhe.getYonghuming()));if(user!=null) {return R.error("用户已存在");}shiyongzhe.setId(new Date().getTime());shiyongzheService.insert(shiyongzhe);return R.ok();}/*** 修改*/@RequestMapping("/update")public R update(@RequestBody ShiyongzheEntity shiyongzhe, HttpServletRequest request){//ValidatorUtils.validateEntity(shiyongzhe);shiyongzheService.updateById(shiyongzhe);//全部更新return R.ok();}/*** 删除*/@RequestMapping("/delete")public R delete(@RequestBody Long[] ids){shiyongzheService.deleteBatchIds(Arrays.asList(ids));return R.ok();}/*** 提醒接口*/@RequestMapping("/remind/{columnName}/{type}")public R remindCount(@PathVariable("columnName") String columnName, HttpServletRequest request, @PathVariable("type") String type,@RequestParam Map<String, Object> map) {map.put("column", columnName);map.put("type", type);if(type.equals("2")) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");Calendar c = Calendar.getInstance();Date remindStartDate = null;Date remindEndDate = null;if(map.get("remindstart")!=null) {Integer remindStart = Integer.parseInt(map.get("remindstart").toString());c.setTime(new Date()); c.add(Calendar.DAY_OF_MONTH,remindStart);remindStartDate = c.getTime();map.put("remindstart", sdf.format(remindStartDate));}if(map.get("remindend")!=null) {Integer remindEnd = Integer.parseInt(map.get("remindend").toString());c.setTime(new Date());c.add(Calendar.DAY_OF_MONTH,remindEnd);remindEndDate = c.getTime();map.put("remindend", sdf.format(remindEndDate));}}Wrapper<ShiyongzheEntity> wrapper = new EntityWrapper<ShiyongzheEntity>();if(map.get("remindstart")!=null) {wrapper.ge(columnName, map.get("remindstart"));}if(map.get("remindend")!=null) {wrapper.le(columnName, map.get("remindend"));}int count = shiyongzheService.selectCount(wrapper);return R.ok().put("count", count);}}