寮曡█

Java缂栫▼璇█浠ュ叾寮哄ぇ鐨勯潰鍚戝璞＄壒鎬э紝鍦ㄤ紒涓氱骇搴旂敤銆乄eb寮€鍙戜互鍙婄郴缁熺紪绋嬬瓑棰嗗煙澶ф斁寮傚僵銆傛湰绡囨枃绔犳棬鍦ㄥ紩瀵煎垵瀛﹁€呮鍏ava缂栫▼鐨勬鍫傦紝閫氳繃鏋勫缓涓€涓畝鍗曠殑椤圭洰绠＄悊骞冲彴鏉ラ敜鐐间綘鐨凧ava缂栫▼鎶€宸у拰椤圭洰绠＄悊鑳藉姏銆傝繖涓」鐩鐞嗗钩鍙板皢甯姪鍥㈤槦鏈夋晥鍦扮粍缁囥€佽窡韪拰绠＄悊椤圭洰浠诲姟锛屼粠鑰屾彁鍗囧洟闃熺殑鍗忎綔鏁堢巼銆?/p>

绯荤粺鏋勫缓鐩爣锛氭墦閫犵畝鏄撻」鐩鐞嗗钩鍙?/p>

鎴戜滑鐨勭洰鏍囨槸鏋勫缓涓€涓熀纭€鐗堢殑椤圭洰绠＄悊骞冲彴锛屽畠搴斿叿澶囦互涓嬫牳蹇冨姛鑳斤細鐢ㄦ埛璁よ瘉銆侀」鐩垱寤轰笌缂栬緫銆佷换鍔＄鐞嗐€佹潈闄愭帶鍒朵互鍙婂熀纭€鐨勭敤鎴风晫闈€傞€氳繃杩欎釜椤圭洰锛屼綘灏嗗叏闈㈡繁鍏ュ湴浜嗚ВJava寮€鍙戠殑鍚勪釜闃舵锛屽寘鎷璁℃暟鎹簱妯″瀷锛屽疄鐜板熀纭€鍔熻兘锛屾瀯寤虹敤鎴风晫闈紝浠ュ強杩涜娴嬭瘯涓庨儴缃层€?/p>

鍥為【Java鍩虹鐭ヨ瘑

鍦ㄥ紑濮嬩箣鍓嶏紝璇风‘淇濅綘宸叉帉鎻′互涓婮ava鍩虹鍐呭锛?/p>

Java鍩虹璇硶姒傝锛氭帉鎻″彉閲忓０鏄庛€佺被鍨嬨€佽繍绠楃銆佹祦绋嬫帶鍒剁粨鏋勶紙濡傚惊鐜€佹潯浠惰鍙ワ級绛夋牳蹇冩蹇点€?/p>

甯哥敤绫诲簱浠嬬粛锛氱啛鎮夐泦鍚堢被锛堝ArrayList銆丠ashMap锛夈€佽緭鍏ヨ緭鍑烘祦銆佸紓甯稿鐞嗙瓑鍩烘湰绫诲簱鐨勪娇鐢ㄣ€?/p>

Java寮€鍙戠幆澧冮厤缃細鏍规嵁浣犵殑鎿嶄綔绯荤粺閫夋嫨鍚堥€傜殑Java IDE锛堝IntelliJ IDEA銆丒clipse锛夛紝骞舵纭厤缃紑鍙戠幆澧冦€?/p>

绀轰緥锛欽ava寮€鍙戠幆澧冮厤缃?/p>

浠ヤ笅鏄熀鏈殑Java浠ｇ爜绀轰緥锛?/p>

```java

public class HelloWorld {

public static void main(String[] args) {

System.out.println("Hello, World!");

}

}

```

鏋勫缓鍏抽敭鍔熻兘

璁捐鏁版嵁搴撴ā鍨?/p>

浣跨敤MySQL绠＄悊宸ュ叿鍒涘缓鍚嶄负鈥減roject_management鈥濈殑鏁版嵁搴撱€?/p>

```sql

CREATE DATABASE project_management;

USE project_management;

CREATE TABLE users (

id INT AUTO_INCREMENT PRIMARY KEY,

username VARCHAR(255) NOT NULL,

password VARCHAR(255) NOT NULL

);

CREATE TABLE projects (

id INT AUTO_INCREMENT PRIMARY KEY,

name VARCHAR(255) NOT NULL,

owner_id INT,

FOREIGN KEY (owner_id) REFERENCES users(id)

);

CREATE TABLE tasks (

id INT AUTO_INCREMENT PRIMARY KEY,

title VARCHAR(255) NOT NULL,

description TEXT,

project_id INT,

assigned_to INT,

completed BOOLEAN DEFAULT FALSE,

FOREIGN KEY (project_id) REFERENCES projects(id),

FOREIGN KEY (assigned_to) REFERENCES users(id)

);

```

寮€鍙戠敤鎴疯璇佺郴缁?/p>

鐢ㄦ埛绠＄悊妯″潡瑙ｆ瀽

UserController.java涓殑鐢ㄦ埛娉ㄥ唽涓庣櫥褰曠鐞嗗姛鑳藉疄鐜?/p>

鐢ㄦ埛鎺у埗鍣ㄨ璁捐鎴愪簡`RestController`鐨勫舰寮忥紝杩欎釜Java绫讳腑鐨勬柟娉曞厑璁哥敤鎴锋敞鍐屽拰鐧诲綍銆傚綋鐢ㄦ埛灏濊瘯娉ㄥ唽鏃讹紝璋冪敤`registerUser`鏂规硶锛屽苟閫氳繃`PostMapping("/register")`娉ㄨВ鏍囪瘑杩欎釜绔偣銆備竴鏃︾敤鎴锋敞鍐屾垚鍔燂紝浼氳繑鍥炰竴涓甫鏈夋垚鍔熶俊鎭殑鍝嶅簲瀹炰綋銆傜櫥褰曞姛鑳藉垯閫氳繃`loginUser`鏂规硶瀹炵幇锛屽苟閫氳繃`/login`绔偣鎺ユ敹鐧诲綍璇锋眰銆傛垚鍔熺櫥褰曞悗锛屽悓鏍疯繑鍥炰竴涓搷搴斿疄浣撹〃绀虹櫥褰曟垚鍔熴€?/p>

瀹夊叏閰嶇疆姒傝

瀹夊叏閰嶇疆绫籤SecurityConfig`缁ф壙鑷猔WebSecurityConfigurerAdapter`锛屽苟瀹炵幇浜嗗繀瑕佺殑閰嶇疆鏉ョ‘淇濈郴缁熺殑瀹夊叏鎬с€傞€氳繃閰嶇疆HttpSecurity瀵硅薄锛屾垜浠厑璁告棤鏉冮檺璁块棶娉ㄥ唽鍜岀櫥褰曠殑绔偣锛岃€屽叾浠栨墍鏈夎姹傞兘闇€瑕佽璇併€傝繕閰嶇疆浜嗗熀浜庤〃鍗曠殑鐧诲綍椤甸潰浠ュ強娉ㄩ攢鍔熻兘銆傚叏灞€閰嶇疆閮ㄥ垎閫氳繃娉ㄥ叆鑷畾涔夌殑`UserDetailsService`鏉ラ厤缃敤鎴锋湇鍔＄粏鑺傘€傝繖鏍风殑閰嶇疆纭繚浜嗙郴缁熺殑瀹夊叏鎬у悓鏃朵笉闃荤鐢ㄦ埛鐨勬甯告搷浣溿€?/p>

椤圭洰绠＄悊鐨勬牳蹇冨姛鑳借瑙?/p>

鍒涘缓涓庣紪杈戦」鐩ā鍧楀疄鐜扮粏鑺?/p>

椤圭洰鎺у埗鍣ㄨВ鏋愶紙ProjectController.java锛変腑鐨勯」鐩垱寤轰笌缂栬緫鍔熻兘瀹炵幇

椤圭洰鎺у埗鍣紙ProjectController锛夋彁渚涗簡鍒涘缓鍜岀紪杈戦」鐩殑鍔熻兘銆傞€氳繃璋冪敤甯︽湁鐗瑰畾娉ㄨВ鐨勬柟娉曪紝鍙互澶勭悊鐩稿簲鐨凥TTP璇锋眰銆備娇鐢╜PostMapping("/projects")`娉ㄨВ鐨勬柟娉曠敤浜庡垱寤烘柊椤圭洰锛屽苟灏嗗垱寤烘垚鍔熺殑鍝嶅簲瀹炰綋杩斿洖缁欑敤鎴枫€傜紪杈戦」鐩殑鍔熻兘閫氳繃甯︽湁`PutMapping("/projects/{id}")`娉ㄨВ鐨勬柟娉曞疄鐜帮紝杩欎釜鏂规硶浼氭帴鏀朵竴涓」鐩甀D浣滀负璺緞鍙橀噺锛屽苟澶勭悊鏇存柊閫昏緫鍚庤繑鍥炴洿鏂版垚鍔熺殑鍝嶅簲瀹炰綋銆傞€氳繃杩欎簺鏂规硶锛屽紑鍙戣€呭彲浠ュ湪Java鎺у埗鍙拌交鏉惧疄鐜伴」鐩殑娣诲姞鍜屼慨鏀规搷浣溿€?/p>

浠诲姟绠＄悊鍔熻兘鐨勫疄鐜版瑙?/p>

浠诲姟鎺у埗鍣?// TaskController.java

===============

@RestController

public class TaskController {

/

鍒涘缓鏂颁换鍔＄殑绔偣

@PostMapping("/tasks")

褰撶敤鎴烽€氳繃POST璇锋眰鍚?/tasks"鍙戦€佹暟鎹椂锛屾鍑芥暟璐熻矗澶勭悊璇锋眰骞跺垱寤烘柊浠诲姟銆?/p>

@param task 璇锋眰浣撲腑鐨勪换鍔℃暟鎹?/p>

@return 鎴愬姛鍒涘缓浠诲姟鍚庣殑鍝嶅簲瀹炰綋

/

public ResponseEntity createTask(@RequestBody Task task) {

// 鎵ц鍒涘缓浠诲姟鐨勯€昏緫

return ResponseEntity.ok("浠诲姟宸叉垚鍔熷垱寤?);

}

/

鍒犻櫎鎸囧畾浠诲姟鐨勭鐐?/p>

@DeleteMapping("/tasks/{id}")

鏍规嵁鎻愪緵鐨勪换鍔D鍒犻櫎鐗瑰畾浠诲姟銆?/p>

@param taskId 浠诲姟ID璺緞鍙橀噺

@return 鎴愬姛鍒犻櫎浠诲姟鍚庣殑鍝嶅簲瀹炰綋

/

public ResponseEntity deleteTask(@PathVariable("id") int taskId) {

// 鎵ц鍒犻櫎浠诲姟鐨勯€昏緫

return ResponseEntity.ok("浠诲姟宸叉垚鍔熷垹闄?);

}

/

鏇存柊鎸囧畾浠诲姟鐨勭鐐?/p>

@PutMapping("/tasks/{id}")

閫氳繃PUT璇锋眰鏇存柊鐜版湁浠诲姟鐨勪俊鎭€傞渶瑕佹彁渚涗换鍔D鍜屾洿鏂板悗鐨勪换鍔℃暟鎹€?/p>

@param taskId 浠诲姟ID璺緞鍙橀噺

@param task 璇锋眰浣撲腑鐨勬洿鏂板悗浠诲姟鏁版嵁

@return 鎴愬姛鏇存柊浠诲姟鍚庣殑鍝嶅簲瀹炰綋

/

public ResponseEntity updateTask(@PathVariable("id") int taskId, @RequestBody Task task) {

// 鎵ц鏇存柊浠诲姟鐨勯€昏緫

return ResponseEntity.ok("浠诲姟宸叉垚鍔熸洿鏂?);

}

/

涓烘寚瀹氫换鍔″垎閰嶇敤鎴风殑绔偣

@PostMapping("/tasks/{taskId}/assign")

閫氳繃POST璇锋眰涓虹壒瀹氫换鍔″垎閰嶇敤鎴枫€傞渶瑕佹彁渚涗换鍔D鍜孉ssignRequest鏁版嵁銆?/p>

@param taskId 浠诲姟ID璺緞鍙橀噺

@param request 鍖呭惈鍒嗛厤閫昏緫淇℃伅鐨勮姹備綋鏁版嵁

@return 鎴愬姛鍒嗛厤浠诲姟鍚庣殑鍝嶅簲瀹炰綋

/

public ResponseEntity assignTask(@PathVariable("taskId") int taskId, @RequestBody AssignRequest request) {

// 鎵ц鍒嗛厤浠诲姟鐨勯€昏緫锛岀‘淇濆彧鏈夋纭潈闄愮殑鐢ㄦ埛鎵嶈兘鎿嶄綔鐗瑰畾浠诲姟鎴栭」鐩€?/p>

return ResponseEntity.ok("浠诲姟宸叉垚鍔熷垎閰?);

}

鐢ㄦ埛鏉冮檺绠＄悊姒傝堪 馃敀 馃洝锔?馃攽 馃懃 馃捇 馃搮 馃攧 馃敐 馃殌 馃摎 馃敡 馃敤 馃洜锔?馃挕 馃捈 馃搳 馃搵绛夌鍙疯〃绀虹敤鎴锋潈闄愮鐞嗙殑鍚勪釜鏂归潰銆傝瀹氫笉鍚岀敤鎴风殑瑙掕壊涓庢潈闄愶紝瀹炵幇澶氱敤鎴峰崗鍚屽伐浣溿€傛鍔熻兘涓虹敤鎴峰湪椤圭洰绠＄悊骞冲彴涓婅繘琛屼釜鎬у寲鎿嶄綔鍜屼氦浜掓彁渚涗簡鍩虹銆傜‘淇濈敤鎴峰彧鑳芥搷浣滃睘浜庤嚜宸辩殑椤圭洰鍜屼换鍔★紝鍦⊿pring Security涓厤缃潈闄愯鍒欐槸鍏抽敭銆傜敤鎴风晫闈㈣璁′笌瀹炵幇涔熸槸涓嶅彲蹇借鐨勪竴鐜紝浣跨敤HTML銆丆SS鍜孞avaScript鏋勫缓鍓嶇鐣岄潰锛岄泦鎴怋ootstrap鎴朅nt Design绛夋鏋舵彁鍗囩晫闈㈢編瑙傚拰鐢ㄦ埛鍙嬪ソ鎬с€傛祴璇曚笌閮ㄧ讲鐜妭鍚屾牱閲嶈锛岄€氳繃JUnit缂栧啓鍗曞厓娴嬭瘯锛屼娇鐢∕ockito妯℃嫙渚濊禆杩涜闆嗘垚娴嬭瘯锛岀‘淇濈郴缁熺殑绋冲畾鎬у拰鍙潬鎬с€傝繖浜涘厓绱犲叡鍚屾瀯鎴愪簡椤圭洰绠＄悊骞冲彴鐨勬牳蹇冪粍鎴愰儴鍒嗗拰鐢ㄦ埛浜や簰鐨勫熀纭€銆?TaskServiceTest绫诲崟鍏冩祴璇曠ず渚?/p>

鍦↗ava寮€鍙戜腑锛屽崟鍏冩祴璇曟槸纭繚浠ｇ爜璐ㄩ噺鐨勯噸瑕佺幆鑺傘€備互涓嬫槸涓€涓叧浜嶵askService鐨勫崟鍏冩祴璇曠ず渚嬨€?/p>

瀵煎叆鎵€闇€鐨勬祴璇曞強妯℃嫙搴擄細

```java

import org.junit.jupiter.api.Test;

import static org.mockito.Mockito.;

class TaskServiceTest {

@Test

public void testCreateTaskSuccessfully() {

// 妯℃嫙TaskService瀵硅薄

TaskService service = mock(TaskService.class);

// 鍒涘缓涓€涓猅ask瀵硅薄

Task task = new Task();

// 璁剧疆妯℃嫙琛屼负锛氬綋璋冪敤createTask鏂规硶鏃讹紝杩斿洖true

when(service.createTask(task)).thenReturn(true);

// 璋冪敤瀹為檯鐨勬柟娉曞苟鑾峰彇缁撴灉

boolean result = service.createTask(task);

// 楠岃瘉缁撴灉鏄惁绗﹀悎棰勬湡

Assertions.assertEquals(true, result);

}

}

```

闅忕潃椤圭洰鐨勫彂灞曪紝鍗曞厓娴嬭瘯鍙槸寮€濮嬶紝鎺ヤ笅鏉ヨ鑰冭檻鐨勬槸濡備綍閮ㄧ讲搴旂敤銆?/p>

閮ㄧ讲搴旂敤

閫夋嫨鍚堥€傜殑鏈嶅姟鍣ㄦ垨浜戝钩鍙版潵閮ㄧ讲浣犵殑搴旂敤銆傜‘淇濅綘宸茬粡閰嶇疆浜嗗簲鐢ㄦ湇鍔″櫒锛屽Tomcat鎴朖etty銆傝繖涓€姝ユ槸浣夸綘鐨勯」鐩粠寮€鍙戠幆澧冭繃娓″埌鐢熶骇鐜鐨勫叧閿€?/p>

鎬荤粨涓庢嫇灞?/p>

閫氳繃鏈」鐩殑瀹炶返锛屼綘涓嶄粎鎺屾彙浜咼ava寮€鍙戠殑鍩烘湰娴佺▼锛岃繕鏋勫缓浜嗛」鐩鐞嗗钩鍙帮紝娣卞叆鐞嗚В浜嗘暟鎹簱璁捐銆佸畨鍏ㄨ璇併€佸墠鍚庣浜や簰銆佹潈闄愭帶鍒剁瓑鏍稿績瑕佺礌銆傚湪姝ゅ熀纭€涓婏紝浣犲彲浠ヨ繘涓€姝ユ嫇灞曞姛鑳斤紝濡傛坊鍔犻」鐩枃浠剁鐞嗐€佹棩绋嬫彁閱掋€佹姤琛ㄧ敓鎴愮瓑锛屼互鎻愬崌绯荤粺鐨勫疄鐢ㄦ€у拰鐢ㄦ埛浣撻獙銆傝繖浜涘姛鑳界殑娣诲姞灏嗚繘涓€姝ユ彁楂樹綘鐨凧ava寮€鍙戞妧鑳藉拰瀹炶返缁忛獙銆?/p>

鎺ㄨ崘瀛︿範璧勬簮

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