• Java项目：SSM网吧计费管理系统

    作者主页：夜未央5788

     简介：Java领域优质创作者、Java项目、学习资料、技术互助

    文末获取源码

    项目介绍

    管理员角色包含以下功能：
    登录与注册,会员管理,会员充值,烟饮料外卖,营业额信息统计,今日营业信息查看等功能。

    由于本程序规模不大，可供课程设计，毕业设计学习演示之用

    环境需要

    1.运行环境：最好是java jdk 1.8，我们在这个平台上运行的。其他版本理论上也可以。
    2.IDE环境：IDEA，Eclipse,Myeclipse都可以。推荐IDEA;
    3.tomcat环境：Tomcat 7.x,8.x,9.x版本均可
    4.硬件环境：windows 7/8/10 1G内存以上；或者 Mac OS； 

    5.数据库：MySql 5.7版本；

    技术栈

    1. 后端：Spring+SpringMVC+Mybatis

    2. 前端：HTML+CSS+JavaScript+jsp

    使用说明

    1. 使用Navicat或者其它工具，在mysql中创建对应名称的数据库，并导入项目的sql文件；
    2. 使用IDEA/Eclipse/MyEclipse导入项目，Eclipse/MyEclipse导入时，若为maven项目请选择maven;若为maven项目，导入成功后请执行maven clean;maven install命令，然后运行；
    3. 将项目中application.yml配置文件中的数据库配置改为自己的配置;

    4. 运行项目，输入localhost:8080/ 登录

    运行截图

     

     

     

     

     

    相关代码

    管理员控制器

    1. package com.shop.controller;
    2.  
    3. import java.io.File;
    4. import java.util.Date;
    5. import java.util.List;
    6.  
    7. //import javax.servlet.http.HttpServletRequest;
    8.  
    9. import org.springframework.beans.factory.annotation.Autowired;
    10. import org.springframework.stereotype.Controller;
    11. import org.springframework.ui.Model;
    12. import org.springframework.web.bind.annotation.RequestMapping;
    13. import org.springframework.web.bind.annotation.RequestParam;
    14. import org.springframework.web.multipart.MultipartFile;
    15.  
    16. import com.shop.Utils.PageBean;
    17. import com.shop.Utils.UUIDUtiils;
    18. import com.shop.po.Adminuser;
    19. import com.shop.po.Category;
    20. import com.shop.po.Categorysecond;
    21. import com.shop.po.Message;
    22. import com.shop.po.Orders;
    23. import com.shop.po.Product;
    24. import com.shop.po.User;
    25. import com.shop.service.CategorySecondService;
    26. import com.shop.service.CategoryService;
    27. import com.shop.service.MessageService;
    28. import com.shop.service.OrderService;
    29. import com.shop.service.ProductService;
    30. import com.shop.service.UserService;
    31.  
    32. import javax.servlet.http.HttpServletRequest;
    33.  
    34.  
    35. @Controller
    36. public class AdminController {
    37. 	@Autowired
    38. 	private UserService userService;
    39. 	@Autowired
    40. 	public CategoryService categoryService;
    41. 	@Autowired
    42. 	public CategorySecondService categorySecondService;
    43. 	@Autowired
    44. 	public ProductService productService;
    45. 	@Autowired
    46. 	private OrderService orderService;
    47. 	@Autowired
    48. 	private MessageService messageService;
    49.  
    50. 	@RequestMapping("/admin/admin_findAll")
    51. 	public String admin_findAll(Model model, HttpServletRequest request) throws Exception {
    52. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    53. 		if(adminuserLogin==null){
    54. 			request.getSession().setAttribute("message","对不起您还没有登录");
    55. 			return "admin/index";
    56. 		}
    57. 		List userList = userService.admin_findAll();
    58. 		model.addAttribute("userList", userList);
    59. 		return "admin/user/list";
    60. 	}
    61.  
    62. 	@RequestMapping("/admin/adminCategory_findAll")
    63. 	public String adminCategory_findAll(Model model, HttpServletRequest request)
    64. 			throws Exception {
    65. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    66. 		if(adminuserLogin==null){
    67. 			request.getSession().setAttribute("message","对不起您还没有登录");
    68. 			return "admin/index";
    69. 		}
    70. 		List categoryList = categoryService.adminbFindCategory();
    71. 		/*for (Category category : categoryList) {
    72. 			System.out.println(category.getCname());
    73. 		}*/
    74. 		model.addAttribute("categoryList", categoryList);
    75. 		return "admin/category/list";
    76. 	}
    77.  
    78. 	@RequestMapping("/admin/adminCategory_add")
    79. 	public String adminCategory_add(Model model,HttpServletRequest request) throws Exception {
    80. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    81. 		if(adminuserLogin==null){
    82. 			request.getSession().setAttribute("message","对不起您还没有登录");
    83. 			return "admin/index";
    84. 		}
    85. //		List categoryList = categoryService.adminbFindCategory();
    86. //		model.addAttribute("categoryList", categoryList);
    87. 		return "admin/category/add";
    88. 	}
    89.  
    90. 	@RequestMapping("/admin/adminCategory_save")
    91. 	public String adminCategory_save(@RequestParam String cname,HttpServletRequest request)
    92. 			throws Exception {
    93. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    94. 		if(adminuserLogin==null){
    95. 			request.getSession().setAttribute("message","对不起您还没有登录");
    96. 			return "admin/index";
    97. 		}
    98. 		Category addCategory = new Category();
    99. 		addCategory.setCname(cname);
    100. 		categoryService.addCategory(addCategory);
    101. 		return "redirect:/admin/adminCategory_findAll.action";
    102. 	}
    103.  
    104. 	@RequestMapping("/admin/adminCategory_edit")
    105. 	public String adminCategory_delete(@RequestParam int cid, Model model,HttpServletRequest request)
    106. 			throws Exception {
    107. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    108. 		if(adminuserLogin==null){
    109. 			request.getSession().setAttribute("message","对不起您还没有登录");
    110. 			return "admin/index";
    111. 		}
    112. 		Category existCategory = categoryService.findCategory(cid);
    113. 		model.addAttribute("existCategory", existCategory);
    114. 		return "admin/category/edit";
    115. 	}
    116.  
    117. 	@RequestMapping("/admin/adminCategory_update")
    118. 	public String adminCategory_update(@RequestParam int cid,
    119. 			@RequestParam String cname,HttpServletRequest request) {
    120. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    121. 		if(adminuserLogin==null){
    122. 			request.getSession().setAttribute("message","对不起您还没有登录");
    123. 			return "admin/index";
    124. 		}
    125. 		Category category = new Category();
    126. 		category.setCid(cid);
    127. 		category.setCname(cname);
    128. 		categoryService.adminCategory_update(category);
    129. 		return "redirect:/admin/adminCategory_findAll.action";
    130. 	}
    131.  
    132. 	@RequestMapping("/admin/adminCategory_delete")
    133. 	public String adminCategory_delete(@RequestParam int cid,HttpServletRequest request) throws Exception {
    134. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    135. 		if(adminuserLogin==null){
    136. 			request.getSession().setAttribute("message","对不起您还没有登录");
    137. 			return "admin/index";
    138. 		}
    139. 		categorySecondService.adminCategorySecond_deleteByCid(cid);
    140. 		categoryService.deleteCategoryByCid(cid);
    141. 		return "redirect:/admin/adminCategory_findAll.action";
    142. 	}
    143.  
    144. 	// admin 的二级分类的管理
    145. 	@RequestMapping("/admin/adminCategorySecond_findAllByPage")
    146. 	public String adminCategorySecond_findAllByPage(@RequestParam int page,Model model,HttpServletRequest request) {
    147. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    148. 		if(adminuserLogin==null){
    149. 			request.getSession().setAttribute("message","对不起您还没有登录");
    150. 			return "admin/index";
    151. 		}
    152. 		PageBean csPageBean = categorySecondService
    153. 				.adminCategorySecond_findAllByPage(page);
    154. 		/*List list = csPageBean.getList();
    155. 		for (Categorysecond categorysecond : list) {
    156. 			System.out.println(categorysecond.getCsname());
    157. 		}*/
    158. 		model.addAttribute("csPageBean", csPageBean);
    159. 		return "admin/categorysecond/list";
    160. 	}
    161. 	@RequestMapping("admin/adminCategorySecond_addPage")
    162. 	public String adminCategorySecond_addPage(Model model,HttpServletRequest request) throws Exception{
    163. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    164. 		if(adminuserLogin==null){
    165. 			request.getSession().setAttribute("message","对不起您还没有登录");
    166. 			return "admin/index";
    167. 		}
    168. 		List categoryList = categoryService.adminbFindCategory();
    169. 		model.addAttribute("categoryList", categoryList);
    170. 		return "admin/categorysecond/add";
    171. 	}
    172. 	@RequestMapping("admin/adminCategorySecond_save")
    173. 	public String adminCategorySecond_save(@RequestParam String csname,@RequestParam int cid,HttpServletRequest request) throws Exception{
    174. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    175. 		if(adminuserLogin==null){
    176. 			request.getSession().setAttribute("message","对不起您还没有登录");
    177. 			return "admin/index";
    178. 		}
    179. 		Categorysecond categorysecond = new Categorysecond();
    180. 		categorysecond.setCsname(csname);
    181. 		categorysecond.setCid(cid);
    182. 		categorySecondService.adminCategorySecond_save(categorysecond);
    183. 		return "redirect:/admin/adminCategorySecond_findAllByPage.action?page=1";
    184. 	}
    185. 	@RequestMapping("admin/adminCategorySecond_edit")
    186. 	public String adminCategorySecond_edit(@RequestParam int csid,Model model,HttpServletRequest request) throws Exception{
    187. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    188. 		if(adminuserLogin==null){
    189. 			request.getSession().setAttribute("message","对不起您还没有登录");
    190. 			return "admin/index";
    191. 		}
    192. 		Categorysecond findByCsid = categorySecondService.findByCsid(csid);
    193. 		model.addAttribute("findByCsid", findByCsid);
    194. 		return "admin/categorysecond/edit";
    195. 	}
    196. 	@RequestMapping("admin/adminCategorySecond_update")
    197. 	public String adminCategorySecond_update(@RequestParam String csname,@RequestParam int csid,HttpServletRequest request){
    198. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    199. 		if(adminuserLogin==null){
    200. 			request.getSession().setAttribute("message","对不起您还没有登录");
    201. 			return "admin/index";
    202. 		}
    203. 		Categorysecond categorysecond = new Categorysecond();
    204. 		categorysecond.setCsname(csname);
    205. 		categorysecond.setCsid(csid);
    206. 		categorySecondService.adminCategorySecond_update(categorysecond);
    207. 		return "redirect:/admin/adminCategorySecond_findAllByPage.action?page=1";
    208. 	}
    209. 	@RequestMapping("admin/adminCategorySecond_delete")
    210. 	public String adminCategorySecond_delete(@RequestParam int csid,HttpServletRequest request) throws Exception{
    211. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    212. 		if(adminuserLogin==null){
    213. 			request.getSession().setAttribute("message","对不起您还没有登录");
    214. 			return "admin/index";
    215. 		}
    216. 		categorySecondService.adminCategorySecond_delete(csid);
    217. 		return "redirect:/admin/adminCategorySecond_findAllByPage.action?page=1";
    218. 	}
    219. 	//admin的商品管理
    220. 	@RequestMapping("/admin/adminProduct_findAllByPage")
    221. 	public String adminProduct_findAllByPage(@RequestParam int page, Model model,HttpServletRequest request)
    222. 			throws Exception {
    223. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    224. 		if(adminuserLogin==null){
    225. 			request.getSession().setAttribute("message","对不起您还没有登录");
    226. 			return "admin/index";
    227. 		}
    228. 		PageBean allProPageBean = productService.findAllProduct(page);
    229. 		model.addAttribute("allProPageBean", allProPageBean);
    230. 		return "admin/product/list";
    231. 	}
    232.  
    233. 	@RequestMapping("/admin/adminProduct_addPage")
    234. 	public String adminProduct_addPage(Model model,HttpServletRequest request) throws Exception {
    235. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    236. 		if(adminuserLogin==null){
    237. 			request.getSession().setAttribute("message","对不起您还没有登录");
    238. 			return "admin/index";
    239. 		}
    240. 		//查询出所有的二级分类
    241. 		List cslist = categorySecondService.findAll();
    242. 		/*for (Categorysecond categorysecond : cslist) {
    243. 			System.out.println(categorysecond.getCsname());
    244. 		}*/
    245. 		model.addAttribute("cslist", cslist);
    246. 		return "admin/product/add";
    247. 	}
    248.  
    249. 	@RequestMapping("/admin/adminProduct_save")
    250. 	public String adminProduct_save(Product product,HttpServletRequest request,MultipartFile file) throws Exception {
    251. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    252. 		if(adminuserLogin==null){
    253. 			request.getSession().setAttribute("message","对不起您还没有登录");
    254. 			return "admin/index";
    255. 		}
    256. 		product.setPdate(new Date());
    257. //		上传图片
    258. 		if (file != null) {
    259. 			String path = request.getServletContext().getRealPath(
    260. 					"/products");
    261. 			String uploadFileName = file.getOriginalFilename();
    262. 			String fileName = UUIDUtiils.getUUID()+uploadFileName;
    263. 			File diskFile = new File(path + "//" + fileName);
    264. 			file.transferTo(diskFile);
    265. 			product.setImage("products/" + fileName);
    266. 		}
    267. 		System.out.println(product.getImage());
    268. 		productService.adminProduct_save(product);
    269. 		return "redirect:/admin/adminProduct_findAllByPage.action?page=1";
    270. 	}
    271. 	
    272. 	@RequestMapping("admin/adminProduct_deletecs")
    273. 	public String adminProduct_deletecs(@RequestParam int pid,HttpServletRequest request) throws Exception{
    274. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    275. 		if(adminuserLogin==null){
    276. 			request.getSession().setAttribute("message","对不起您还没有登录");
    277. 			return "admin/index";
    278. 		}
    279. 		productService.adminProduct_deletecs(pid);
    280. 		return "redirect:/admin/adminProduct_findAllByPage.action?page=1";
    281. 	}
    282. 	/**
    283. 	 * 编辑商品
    284. 	 * 
    285. 	 * @param pid
    286. 	 * @param model
    287. 	 * @param request
    288. 	 * @return
    289. 	 * @throws Exception
    290. 	 */
    291. 	@RequestMapping("admin/adminProduct_edit")
    292. 	public String adminProduct_edit(@RequestParam int pid,Model model,HttpServletRequest request) throws Exception{
    293. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    294. 		if(adminuserLogin==null){
    295. 			request.getSession().setAttribute("message","对不起您还没有登录");
    296. 			return "admin/index";
    297. 		}
    298. 		Product product = productService.finbProductByPid(pid);
    299. 		model.addAttribute("findByPid", product);
    300. 		//查询出所有的二级分类
    301. 		List cslist = categorySecondService.findAll();
    302. 		model.addAttribute("cslist", cslist);
    303. 		return "admin/product/edit";
    304. 	}
    305. 	
    306. 	@RequestMapping("/admin/adminProduct_update")
    307. 	public String adminProduct_update(Product product,HttpServletRequest request,MultipartFile file) throws Exception {
    308. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    309. 		if(adminuserLogin==null){
    310. 			request.getSession().setAttribute("message","对不起您还没有登录");
    311. 			return "admin/index";
    312. 		}
    313. 		product.setPdate(new Date());
    314. //		上传图片
    315. 		if (file != null) {
    316. 			String path = request.getServletContext().getRealPath(
    317. 					"/products");
    318. 			String uploadFileName = file.getOriginalFilename();
    319. 			String fileName = UUIDUtiils.getUUID()+uploadFileName;
    320. 			File diskFile = new File(path + "//" + fileName);
    321. 			file.transferTo(diskFile);
    322. 			product.setImage("products/" + fileName);
    323. 		}
    324. 		 
    325. 		productService.adminProduct_update(product);
    326. 		return "redirect:/admin/adminProduct_findAllByPage.action?page=1";
    327. 	}
    328.  
    329. 	/** 订单管理模块  **/
    330. 	
    331. 	@RequestMapping("/admin/adminOrder_findAllByPage")
    332. 	public String adminOrder_findAllByPage(@RequestParam int page, Model model,HttpServletRequest request)
    333. 			throws Exception {
    334. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    335. 		if(adminuserLogin==null){
    336. 			request.getSession().setAttribute("message","对不起您还没有登录");
    337. 			return "admin/index";
    338. 		}
    339. 		
    340. 		PageBean allProPageBean = orderService.findAllOrderByStateAndPage(page);
    341. 		model.addAttribute("pageBean", allProPageBean);
    342. 		return "admin/order/list";
    343. 	}
    344. 	
    345. 	//adminOrder_findByState
    346. 	@RequestMapping("/admin/adminOrder_findByState")
    347. 	public String adminOrder_findByState(@RequestParam int page,@RequestParam int state, Model model,HttpServletRequest request)
    348. 			throws Exception {
    349. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    350. 		if(adminuserLogin==null){
    351. 			request.getSession().setAttribute("message","对不起您还没有登录");
    352. 			return "admin/index";
    353. 		}
    354. 		
    355. 		PageBean allProPageBean = orderService.findAllOrderByStateAndPage(state,page);
    356. 		model.addAttribute("pageBean", allProPageBean);
    357. 		return "admin/order/list";
    358. 	}
    359. 	
    360. 	//订单详情
    361. 	//adminOrder_findOrderItem
    362. 	@RequestMapping("/admin/adminOrder_findOrderItem")
    363. 	public String adminOrder_findOrderItem(@RequestParam int oid, Model model,HttpServletRequest request)
    364. 			throws Exception {
    365. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    366. 		if(adminuserLogin==null){
    367. 			request.getSession().setAttribute("message","对不起您还没有登录");
    368. 			return "admin/index";
    369. 		}
    370. 		
    371. 		Orders orderItems = orderService.findOrderByOid(oid);
    372. 		model.addAttribute("orderItems", orderItems);
    373. 		return "admin/order/list";
    374. 	}
    375. 	
    376. 	//更新订单状态
    377. 	@RequestMapping("/admin/adminOrder_updateState")
    378. 	public String adminOrder_updateState(@RequestParam int oid, @RequestParam int status, Model model,HttpServletRequest request)
    379. 			throws Exception {
    380. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    381. 		if(adminuserLogin==null){
    382. 			request.getSession().setAttribute("message","对不起您还没有登录");
    383. 			return "admin/index";
    384. 		}
    385. 		
    386. 		orderService.updateOrderStatus(oid, status);
    387. 		
    388. 		return "redirect:/admin/adminOrder_findAllByPage.action?page=1";
    389. 	}
    390. 	
    391. 	//后台留言管理 
    392. 	@RequestMapping("/admin/adminMessage_findAllByPage")
    393. 	public String adminMessage_findAllByPage(@RequestParam int page, Model model,HttpServletRequest request)
    394. 			throws Exception {
    395. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    396. 		if(adminuserLogin==null){
    397. 			request.getSession().setAttribute("message","对不起您还没有登录");
    398. 			return "admin/index";
    399. 		}
    400. 		
    401. 		PageBean pageBean = messageService.findAllMessageByPage(page);
    402. 		model.addAttribute("pageBean", pageBean);
    403. 		
    404. 		return "admin/message/list";
    405. 	}
    406. 	
    407. 	@RequestMapping("/admin/adminMessage_delete")
    408. 	public String adminOrder_updateState(@RequestParam int messageid, Model model,HttpServletRequest request)
    409. 			throws Exception {
    410. 		Adminuser adminuserLogin = (Adminuser) request.getSession().getAttribute("adminuserLogin");
    411. 		if(adminuserLogin==null){
    412. 			request.getSession().setAttribute("message","对不起您还没有登录");
    413. 			return "admin/index";
    414. 		}
    415. 		
    416. 		messageService.deleteMessage(messageid);
    417. 		
    418. 		return "redirect:/admin/adminMessage_findAllByPage.action?page=1";
    419. 	}
    420.  
    421. }

    AjaxController

    1. package com.shop.controller;
    2.  
    3. import javax.servlet.http.HttpServletRequest;
    4. import javax.servlet.http.HttpServletResponse;
    5.  
    6. import org.springframework.beans.factory.annotation.Autowired;
    7. import org.springframework.stereotype.Controller;
    8. import org.springframework.web.bind.annotation.RequestMapping;
    9. import org.springframework.web.bind.annotation.RequestParam;
    10.  
    11. import com.shop.po.User;
    12. import com.shop.service.UserService;
    13.  
    14.  
    15. @Controller
    16. public class ajaxController {
    17. 	@Autowired
    18. 	private UserService userService;
    19.  
    20. 	@RequestMapping("/loginFindByid")
    21. 	public void loginFindByid(HttpServletRequest request,
    22. 			HttpServletResponse response, @RequestParam String username) {
    23. 		response.setContentType("text/html;charset=UTF-8");
    24. 		try {
    25. 			User user = userService.loginFindByid(username);
    26. 			if (user!=null) {
    27. 				response.getWriter().write("可以登录");
    28. 			}else{
    29. 				response.getWriter().write("不可以登录");
    30. 			}
    31. 		} catch (Exception e) {
    32. 			e.printStackTrace();
    33. 		}
    34. 	}
    35. 	
    36. 	@RequestMapping("/registFindByid")
    37. 	public void registFindByid(HttpServletRequest request,
    38. 			HttpServletResponse response, @RequestParam String username) {
    39. 		response.setContentType("text/html;charset=UTF-8");
    40. 		try {
    41. 			User user = userService.loginFindByid(username);
    42. 			if (user!=null) {
    43. 				response.getWriter().write("已经被注册");
    44. 			}else{
    45. 				response.getWriter().write("可以注册");
    46. 			}
    47. 		} catch (Exception e) {
    48. 			e.printStackTrace();
    49. 		}
    50. 	}
    51. }

    CheckImgController

    1. package com.shop.controller;
    2.  
    3. import java.awt.Color;
    4. import java.awt.Font;
    5. import java.awt.Graphics;
    6. import java.awt.Graphics2D;
    7. import java.awt.image.BufferedImage;
    8. import java.io.IOException;
    9. import java.util.Random;
    10.  
    11. import javax.imageio.ImageIO;
    12. import javax.servlet.http.HttpServletRequest;
    13. import javax.servlet.http.HttpServletResponse;
    14.  
    15. import org.springframework.stereotype.Controller;
    16. import org.springframework.web.bind.annotation.RequestMapping;
    17.  
    18. @Controller
    19. public class checkImgController {
    20. 	@RequestMapping("checkImg")
    21. 	public void checkImg(HttpServletRequest request ,HttpServletResponse response) throws IOException {
    22.  
    23. 		int width = 120;
    24. 		int height = 30;
    25.  
    26. 		// 步骤一 绘制一张内存中图片
    27. 		BufferedImage bufferedImage = new BufferedImage(width, height,
    28. 				BufferedImage.TYPE_INT_RGB);
    29.  
    30. 		// 步骤二 图片绘制背景颜色 ---通过绘图对象
    31. 		Graphics graphics = bufferedImage.getGraphics();// 得到画图对象 --- 画笔
    32. 		// 绘制任何图形之前 都必须指定一个颜色
    33. 		graphics.setColor(getRandColor(200, 250));
    34. 		graphics.fillRect(0, 0, width, height);
    35.  
    36. 		// 步骤三 绘制边框
    37. 		graphics.setColor(Color.WHITE);
    38. 		graphics.drawRect(0, 0, width - 1, height - 1);
    39.  
    40. 		// 步骤四 四个随机数字
    41. 		Graphics2D graphics2d = (Graphics2D) graphics;
    42. 		// 设置输出字体
    43. 		graphics2d.setFont(new Font("宋体", Font.BOLD, 18));
    44.  
    45. 		// String words
    46. 		// ="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890";
    47. 		String words = "\u7684\u4e00\u4e86\u662f\u6211\u4e0d\u5728\u4eba\u4eec\u6709\u6765\u4ed6\u8fd9\u4e0a\u7740\u4e2a\u5730\u5230\u5927\u91cc\u8bf4\u5c31\u53bb\u5b50\u5f97\u4e5f\u548c\u90a3\u8981\u4e0b\u770b\u5929\u65f6\u8fc7\u51fa\u5c0f\u4e48\u8d77\u4f60\u90fd\u628a\u597d\u8fd8";
    48. 		Random random = new Random();// 生成随机数
    49. 		// 定义StringBuffer
    50. 		StringBuffer sb = new StringBuffer();
    51. 		// 定义x坐标
    52. 		int x = 10;
    53. 		for (int i = 0; i < 4; i++) {
    54. 			// 随机颜色
    55. 			graphics2d.setColor(new Color(20 + random.nextInt(110), 20 + random
    56. 					.nextInt(110), 20 + random.nextInt(110)));
    57. 			// 旋转 -30 --- 30度
    58. 			int jiaodu = random.nextInt(60) - 30;
    59. 			// 换算弧度
    60. 			double theta = jiaodu * Math.PI / 180;
    61.  
    62. 			// 生成一个随机数字
    63. 			int index = random.nextInt(words.length()); // 生成随机数 0 到 length - 1
    64. 			// 获得字母数字
    65. 			char c = words.charAt(index);
    66. 			sb.append(c);
    67. 			// 将c 输出到图片
    68. 			graphics2d.rotate(theta, x, 20);
    69. 			graphics2d.drawString(String.valueOf(c), x, 20);
    70. 			graphics2d.rotate(-theta, x, 20);
    71. 			x += 30;
    72. 		}
    73.  
    74. 		// 将生成的字母存入到session中
    75. 		request.getSession().setAttribute("checkcode", sb.toString());
    76. 		System.out.println(sb.toString());
    77. 		// 步骤五 绘制干扰线
    78. 		graphics.setColor(getRandColor(160, 200));
    79. 		int x1;
    80. 		int x2;
    81. 		int y1;
    82. 		int y2;
    83. 		for (int i = 0; i < 30; i++) {
    84. 			x1 = random.nextInt(width);
    85. 			x2 = random.nextInt(12);
    86. 			y1 = random.nextInt(height);
    87. 			y2 = random.nextInt(12);
    88. 			graphics.drawLine(x1, y1, x1 + x2, x2 + y2);
    89. 		}
    90.  
    91. 		// 将上面图片输出到浏览器 ImageIO
    92. 		graphics.dispose();// 释放资源
    93. 		ImageIO.write(bufferedImage, "jpg", response.getOutputStream());
    94. 	}
    95.  
    96. 	private Color getRandColor(int fc, int bc) {
    97. 		// 取其随机颜色
    98. 		Random random = new Random();
    99. 		if (fc > 255) {
    100. 			fc = 255;
    101. 		}
    102. 		if (bc > 255) {
    103. 			bc = 255;
    104. 		}
    105. 		int r = fc + random.nextInt(bc - fc);
    106. 		int g = fc + random.nextInt(bc - fc);
    107. 		int b = fc + random.nextInt(bc - fc);
    108. 		return new Color(r, g, b);
    109. 	}
    110. }

    DateConverters

    1. package com.shop.controller.converters;
    2.  
    3. import java.text.ParseException;
    4. import java.text.SimpleDateFormat;
    5. import java.util.Date;
    6.  
    7. import org.springframework.core.convert.converter.Converter;
    8.  
    9. public class DateConverters implements Converter{
    10.  
    11. 	@Override
    12. 	public Date convert(String source) {
    13. //		页面传过来的是String字符串，需要改成pojo中日期的类型java.util.Date
    14. 		SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    15. 		try {
    16. //			转换成功就返回
    17. 			return dateFormat.parse(source);
    18. 		} catch (ParseException e) {
    19. 		}
    20. //		不成功就返回空
    21. 		return null;
    22. 	}
    23.  
    24. }

    如果也想学习本系统，下面领取。关注并回复：167ssm

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  • 原文地址：https://blog.csdn.net/hanyunlong1989/article/details/126435984