前言：小劉之前用JAVA寫了一個通訊錄管理系統(tǒng)具體描述如下；

系統(tǒng)功能說明

系統(tǒng)功能說明：
初始化功能后，根據(jù)命令指令提示操作相應的功能。
1.導入初始數(shù)據(jù)
根據(jù)模板文件，將模板文件的數(shù)據(jù)導入到系統(tǒng)中
2.顯示信息
展示系統(tǒng)中通訊錄列表數(shù)據(jù)
3.輸入記錄
根據(jù)提示將輸入的姓名，手機號，郵件，年齡，性別，地址等信息添加到系統(tǒng)中
4.刪除記錄
根據(jù)通訊錄列表記錄的編號將系統(tǒng)中該記錄刪除
5.查詢記錄
根據(jù)提示的搜索條件進行按照姓名或者手機號的維度進行搜索查詢
6.編輯記錄
根據(jù)提示按照通訊錄的編號查詢此記錄并且按照提示進行編輯操作
7.去重
根據(jù)提示的去重條件進行按照姓名或者手機號的維度進行去重
8.批量導出數(shù)據(jù)
將系統(tǒng)中的數(shù)據(jù)批量全部導出到模板導出文件中
9.退出
退出系統(tǒng)程序

二、 開發(fā)環(huán)境

1.操作系統(tǒng)：Windows 10
2.開發(fā)工具：IntelliJ IDEA 2021.3
3.編程語言：java
4.開發(fā)運行：jdk1.8

三、系統(tǒng)主要功能運行截圖

1.導入模板文件

2.導入初始數(shù)據(jù)并顯示數(shù)據(jù)

3.輸入記錄并顯示數(shù)據(jù)

4.編輯記錄并顯示數(shù)據(jù)

5.刪除數(shù)據(jù)并顯示數(shù)據(jù)

6.查詢數(shù)據(jù)并顯示數(shù)據(jù)
按姓名查詢

按手機查詢

7.去重數(shù)據(jù)并顯示數(shù)據(jù)
按姓名去重

按手機號去重

8.導出數(shù)據(jù)到模板文件

源碼如下

1./** 2. * 通訊錄管理系統(tǒng)實體 3. */ 4.public class AddressList { 5. /** 6. * 編號 自增 7. */ 8. private Integer id; 9. /** 10. * 姓名 11. */ 12. private String name; 13. /** 14. * 手機號 15. */ 16. private String phone; 17. /** 18. * 年齡 19. */ 20. private Integer age; 21. /** 22. * 性別 男/女 23. */ 24. private String sex; 25. /** 26. * 郵箱 27. */ 28. private String email; 29. /** 30. * 住址 31. */ 32. private String address; 33. 34. 35. public AddressList() { 36. } 37. 38. public AddressList(Integer id, String name, String phone, Integer age, String sex, String email, String address) { 39. this.id = id; 40. this.name = name; 41. this.phone = phone; 42. this.age = age; 43. this.sex = sex; 44. this.email = email; 45. this.address = address; 46. } 47. 48. public Integer getId() { 49. return id; 50. } 51. 52. public void setId(Integer id) { 53. this.id = id; 54. } 55. 56. public String getName() { 57. return name; 58. } 59. 60. public void setName(String name) { 61. this.name = name; 62. } 63. 64. public String getPhone() { 65. return phone; 66. } 67. 68. public void setPhone(String phone) { 69. this.phone = phone; 70. } 71. 72. public Integer getAge() { 73. return age; 74. } 75. 76. public void setAge(Integer age) { 77. this.age = age; 78. } 79. 80. public String getSex() { 81. return sex; 82. } 83. 84. public void setSex(String sex) { 85. this.sex = sex; 86. } 87. 88. public String getEmail() { 89. return email; 90. } 91. 92. public void setEmail(String email) { 93. this.email = email; 94. } 95. 96. public String getAddress() { 97. return address; 98. } 99. 100. public void setAddress(String address) { 101. this.address = address; 102. } 103. 104. @Override 105. public String toString() { 106. return "AddressList{" + 107. "id=" + id + 108. ", name='" + name + '\'' + 109. ", phone='" + phone + '\'' + 110. ", age=" + age + 111. ", sex='" + sex + '\'' + 112. ", email='" + email + '\'' + 113. ", address='" + address + '\'' + 114. '}'; 115. } 116.} 1.import java.io.*; 2.import java.util.*; 3.import java.util.stream.Collectors; 4. 5.import static java.util.stream.Collectors.collectingAndThen; 6.import static java.util.stream.Collectors.toCollection; 7. 8./** 9. * 通訊錄管理系統(tǒng)主類 10. */ 11.public class AddressListMain { 12. private static Integer index=0; //自增的編號 13. private static String header=""; //表格表頭 14. private static List<AddressList> list = new ArrayList<>(); //存儲數(shù)據(jù)列表 15. private static String importPath= "src\\import.txt";//導入模板的路徑 16. private static String exportPath="src\\export.txt";//導出模板的路徑 17. 18. public static void main(String[] args) { 19. initMenu();//初始化菜單 20. int a;// 定義switch語句變量 21. Scanner in = new Scanner(System.in); // 實例化輸入流對象 22. while (in.hasNext()) { 23. a = in.nextInt(); 24. while (a < 0 || a > 8) { 25. System.out.print("輸入超出范圍，請重新輸入:"); 26. a = in.nextInt(); 27. } 28. switch (a) { 29. case 0: 30. System.exit(0); // 退出 31. break; 32. case 1: 33. importInfo(); //導入初始數(shù)據(jù) 34. break; 35. case 2: 36. showTable(); //顯示信息 37. break; 38. case 3: 39. add(); //輸入記錄 40. break; 41. case 4: 42. del(); //刪除記錄 43. break; 44. case 5: 45. select(); //查詢記錄 46. break; 47. case 6: 48. edit(); //編輯記錄 49. break; 50. case 7: 51. deWeight(); //去重 52. break; 53. case 8: 54. exportInfo(); //批量導出數(shù)據(jù) 55. break; 56. } 57. System.out.println("請按任意鍵繼續(xù)......"); 58. Scanner atWill = new Scanner(System.in); 59. atWill.nextLine(); 60. initMenu(); 61. } 62. 63. 64. 65. } 66. 67. /** 68. * 刪除記錄 69. */ 70. public static void del(){ 71. System.out.println("請輸入要刪除的記錄編號:"); 72. Scanner in =new Scanner(System.in); 73. String next = in.next(); 74. delById(Integer.valueOf(next)); 75. System.out.println("======================刪除成功========================"); 76. } 77. 78. /** 79. * 按照記錄編號進行刪除數(shù)據(jù) 80. * @param id 81. */ 82. public static void delById(Integer id){ 83. Iterator<AddressList> iterator = list.iterator(); 84. while (iterator.hasNext()){ 85. AddressList list = iterator.next(); 86. if (list.getId()==Integer.valueOf(id)){ 87. iterator.remove(); 88. } 89. } 90. } 91. /** 92. * 查詢記錄 93. */ 94. public static void select(){ 95. System.out.println("請輸入要查看搜索的維度:a:姓名；b:手機號"); 96. System.out.print("請輸入a或者b:"); 97. Scanner in =new Scanner(System.in); 98. String next = in.next(); 99. if (next.equals("a")){ 100. System.out.print("請輸入姓名:"); 101. String s = in.next(); 102. getListByName(s); 103. }else if (next.equals("b")){ 104. System.out.print("請輸入手機號:"); 105. String s = in.next(); 106. getListByPhone(s); 107. }else { 108. System.out.println("請按流程輸入相應的關鍵字;"); 109. } 110. } 111. 112. /**去重 113. * 按照提示的字段去重 114. */ 115. public static void deWeight(){ 116. System.out.println("請輸入要查要去重的維度:a:姓名；b:手機號"); 117. Scanner in =new Scanner(System.in); 118. String next = in.next(); 119. if (next.equals("a")){ 120. ArrayList<AddressList> collect = list.stream().collect( 121. collectingAndThen( 122. toCollection(() -> new TreeSet<>(Comparator.comparing(AddressList::get Name))), ArrayList::new) 123. ); 124. showTableListBySelect(collect); 125. }else if (next.equals("b")){ 126. ArrayList<AddressList> collect = list.stream().collect( 127. collectingAndThen( 128. toCollection(() -> new TreeSet<>(Comparator.comparing(AddressList::getPhone))), ArrayList::new) 129. ); 130. showTableListBySelect(collect); 131. } 132. } 133. 134. /** 135. * 編輯記錄 136. */ 137. public static void edit(){ 138. System.out.println("請輸入要編輯的記錄編號:"); 139. Scanner in =new Scanner(System.in); 140. String next = in.next(); 141. boolean b = getOneById(Integer.valueOf(next)); 142. if (!b){ 143. return; 144. } 145. System.out.println("請根據(jù)流程進行修改該記錄"); 146. String s = ""; 147. String msg = ""; 148. 149. AddressList c = new AddressList(); 150. 151. msg = "請輸入姓名:"; 152. System.out.print(msg); 153. s = in.next(); 154. c.setName(s); 155. 156. msg = "請輸入手機號:"; 157. System.out.print(msg); 158. s = in.next(); 159. c.setPhone(s); 160. 161. 162. 163. msg = "請輸入年齡:"; 164. System.out.print(msg); 165. s = in.next(); 166. c.setAge(Integer.valueOf(s)); 167. 168. msg = "請輸入性別:"; 169. System.out.print(msg); 170. s = in.next(); 171. c.setSex(s); 172. 173. msg = "請輸入郵箱:"; 174. System.out.print(msg); 175. s = in.next(); 176. c.setEmail(s); 177. 178. msg = "請輸入地址:"; 179. System.out.print(msg); 180. s = in.next(); 181. c.setAddress(s); 182. c.setId(Integer.valueOf(next)); 183. 184. 185. delById(c.getId()); 186. list.add(c); 187. showTable(); 188. } 189. 190. /** 191. * 按編號id搜索獲取該記錄 192. * @param id 193. */ 194. public static boolean getOneById(Integer id){ 195. AddressList e=null; 196. for (int i=0;i<list.size();i++){ 197. AddressList list = AddressListMain.list.get(i); 198. if (list.getId().equals(id)){ 199. e=list; 200. } 201. } 202. if (e==null){ 203. System.out.println("請輸入有效的通訊錄記錄編號"); 204. return false; 205. } 206. List<AddressList>tem=new ArrayList<>(); 207. tem.add(e); 208. showTableListBySelect(tem); 209. return true; 210. } 211. 212. /** 213. * 按名稱搜索獲取記錄列表 214. */ 215. public static void getListByName(String name){ 216. List<AddressList> collect = list.stream().filter(t -> t.getName().contains(name)).collect(Collectors.toList()); 217. showTableListBySelect(collect); 218. } 219. 220. /** 221. * 按手機號搜索獲取記錄列表 222. */ 223. public static void getListByPhone(String phone){ 224. List<AddressList> collect = list.stream().filter(t -> t.getPhone().contains(phone)).collect(Collectors.toList()); 225. showTableListBySelect(collect); 226. } 227. 228. /** 229. * 批量導出記錄 230. */ 231. public static void exportInfo(){ 232. try { 233. BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(exportPath,true)); 234. bufferedWriter.write(header+"\n"); 235. list.stream().forEach(one->{ 236. 237. String tr =one.getId()+"\t\t"+one.getName() + one.getPhone() + "\t\t" + one.getAge() + "\t\t" + one.getSex() + "\t\t" + one.getEmail() + one.getAddress(); 238. tr+="\n"; 239. try { 240. bufferedWriter.write(tr); 241. } catch (IOException e) { 242. e.printStackTrace(); 243. } 244. }); 245. 246. bufferedWriter.flush();//刷新緩沖區(qū) 247. bufferedWriter.close(); 248. 249. } catch (IOException e) { 250. e.printStackTrace(); 251. } 252. 253. System.out.println("================批量數(shù)據(jù)導出成功==================="); 254. } 255. 256. 257. /** 258. * 按模板導入數(shù)據(jù) 259. */ 260. public static void importInfo(){ 261. BufferedReader bufferedReader = null;//字符讀入緩沖流 262. try { 263. bufferedReader = new BufferedReader(new FileReader(importPath)); 264. String input = ""; 265. int indexTem=0; 266. while ((input = bufferedReader.readLine()) != null) { 267. if (indexTem!=0){ 268. String [] arr = input.split("\\s+"); 269. AddressList one=new AddressList(++index,arr[0],arr[1],Integer.valueOf(arr[2]),arr[3],arr[4],arr[5]); 270. list.add(one); 271. } 272. indexTem++; 273. } 274. bufferedReader.close(); 275. } catch (FileNotFoundException e) { 276. e.printStackTrace(); 277. } catch (IOException e) { 278. e.printStackTrace(); 279. } 280. 281. System.out.println("=====================數(shù)據(jù)導入成功==============="); 282. 283. } 284. 285. /** 286. * 輸入記錄 287. */ 288. public static void add() { 289. String s = ""; 290. String msg = ""; 291. Scanner in = new Scanner(System.in); 292. AddressList c = new AddressList(); 293. 294. msg = "請輸入手機號:"; 295. System.out.print(msg); 296. s = in.next(); 297. c.setPhone(s); 298. 299. msg = "請輸入姓名:"; 300. System.out.print(msg); 301. s = in.next(); 302. c.setName(s); 303. 304. msg = "請輸入年齡:"; 305. System.out.print(msg); 306. s = in.next(); 307. c.setAge(Integer.valueOf(s)); 308. 309. msg = "請輸入性別:"; 310. System.out.print(msg); 311. s = in.next(); 312. c.setSex(s); 313. 314. msg = "請輸入郵箱:"; 315. System.out.print(msg); 316. s = in.next(); 317. c.setEmail(s); 318. 319. msg = "請輸入地址:"; 320. System.out.print(msg); 321. s = in.next(); 322. c.setAddress(s); 323. 324. c.setId(++index); 325. list.add(c); 326. System.out.println("======================記錄新增成功======================"); 327. } 328. 329. /*** 330. * 初始化菜單 331. */ 332. public static void initMenu() { 333. System.out.println("*************通訊錄管理系統(tǒng)功能表**************"); 334. System.out.println("***** 1.導入初始數(shù)據(jù) *****"); 335. System.out.println("***** 2.顯示信息 *****"); 336. System.out.println("***** 3.輸入記錄 *****"); 337. System.out.println("***** 4.刪除記錄 *****"); 338. System.out.println("***** 5.查詢記錄 *****"); 339. System.out.println("***** 6.編輯記錄 *****"); 340. System.out.println("***** 7.去重 *****"); 341. System.out.println("***** 8.批量導出數(shù)據(jù) *****"); 342. System.out.println("***** 0.退出 *****"); 343. System.out.println("*******************************************"); 344. System.out.print("請選擇(0~8):"); 345. } 346. 347. 348. 349. /** 350. * 顯示表格內容 351. */ 352. public static void showTable(){ 353. initHeader(); 354. initTable(list); 355. sortList(); 356. for (int i=0;i<list.size();i++){ 357. System.out.println(getTr(list.get(i))); 358. } 359. } 360. 361. /** 362. * 獲取表格tr數(shù)據(jù) 363. * @param one 364. * @return 365. */ 366. public static String getTr(AddressList one){ 367. String s = one.getId() + "\t\t" + one.getName() + one.getPhone() + "\t\t" + one.getAge() + "\t\t" + one.getSex() + "\t\t" + one.getEmail() + one.getAddress(); 368. return s; 369. } 370. 371. /** 372. * 按照搜索條件獲取展示數(shù)據(jù) 373. */ 374. public static void showTableListBySelect(List<AddressList>list){ 375. initHeader(); 376. initTable(list); 377. for (int i=0;i<list.size();i++){ 378. System.out.println(list.get(i).getId()+"\t\t"+list.get(i).getName()+list.get(i).getPhone() +"\t\t"+list.get(i).getAge()+"\t\t"+list.get(i).getSex()+"\t\t"+list.get(i).getEmail()+list.get(i).getAddress() ); 379. } 380. } 381. 382. /** 383. * 排序 384. */ 385. public static void sortList(){ 386. List<AddressList> collect = list.stream().sorted(Comparator.comparing(AddressList::getId)).collect(Collectors.toList()); 387. list=collect; 388. } 389. 390. /** 391. * 初始化表頭 392. */ 393. public static void initHeader(){ 394. if (header==""){ 395. 396. List<String> asList = Arrays.asList("編號\t\t","姓名", "手機號", "\t年齡", "\t\t性別", "\t\t郵箱", "地址"); 397. 398. asList.stream().forEach(t->{ 399. if (t.contains("姓名")){ 400. if (t.length()<10){ 401. String s=""; 402. for (int j=t.length();j<10;j++){ 403. s+=" "; 404. } 405. t=t+s; 406. } 407. } 408. if (t.contains("手機號")){ 409. if (t.length()<11){ 410. String s=""; 411. for (int j=t.length();j<11;j++){ 412. s+=" "; 413. } 414. t=t+s; 415. } 416. } 417. if (t.contains("郵箱")){ 418. if (t.length()<20){ 419. String s=""; 420. for (int j=t.length();j<20;j++){ 421. s+=" "; 422. } 423. t=t+s; 424. } 425. } 426. header+=t; 427. }); 428. } 429. System.out.println(header); 430. } 431. 432. /** 433. * 初始化表格內容 434. * @param lis 435. */ 436. public static void initTable(List<AddressList>lis){ 437. for (int i=0;i<lis.size();i++){ 438. AddressList list = lis.get(i); 439. String name = list.getName(); 440. String phone = list.getPhone(); 441. String email = list.getEmail(); 442. String age=String.valueOf(list.getAge()); 443. String sex=list.getSex(); 444. 445. if (name.length()<10){ 446. String s=""; 447. for (int j=name.length();j<10;j++){ 448. s+=" "; 449. } 450. list.setName(list.getName()+s); 451. } 452. 453. if (phone.length()<11){ 454. String s=""; 455. for (int j=phone.length();j<11;j++){ 456. s+=" "; 457. } 458. list.setPhone(list.getPhone()+s); 459. } 460. 461. if (email.length()<20){ 462. String s=""; 463. for (int j=email.length();j<20;j++){ 464. s+=" "; 465. } 466. list.setEmail(list.getEmail()+s); 467. } 468. 469. } 470. } 471.}

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