悬赏任务源码搭建教程_从零开发任务悬赏平台附源代码

用户层 → [Web/APP/小程序] 
       ↓
API网关 → [JWT鉴权] 
       ↓
业务层 → [任务服务][支付服务][通知服务] 
       ↓
数据层 → [MySQL主从][Redis集群][MongoDB分片]

# 安装JDK 17+
sudo apt update && sudo apt install openjdk-17-jdk -y

# 安装MySQL 8.0
sudo apt install mysql-server -y
sudo mysql_secure_installation

# 配置Redis 7.0
wget https://download.redis.io/releases/redis-7.0.0.tar.gz
tar xzf redis-7.0.0.tar.gz
cd redis-7.0.0 && make && sudo make install

# 安装RabbitMQ
echo "deb https://dl.cloudsmith.io/public/rabbitmq/rabbitmq-server/deb/ubuntu $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/rabbitmq.list
sudo apt update && sudo apt install rabbitmq-server -y

<!-- pom.xml 关键依赖 -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-amqp</artifactId>
</dependency>

# 创建Vue项目
npm init vue@latest witkey-frontend
cd witkey-frontend
npm install element-plus axios vue-router pinia

@Configuration
@EnableStateMachine
public class TaskStateMachineConfig extends EnumStateMachineConfigurerAdapter<TaskState, TaskEvent> {
    @Override
    public void configure(StateMachineStateConfigurer<TaskState, TaskEvent> states) {
        states.withStates()
            .initial(TaskState.PENDING)
            .states(EnumSet.allOf(TaskState.class));
    }

    @Override
    public void configure(StateMachineTransitionConfigurer<TaskState, TaskEvent> transitions) {
        transitions.withExternal()
            .source(TaskState.PENDING).target(TaskState.ACCEPTED)
            .event(TaskEvent.ACCEPT)
            .and()
            .withExternal()
            .source(TaskState.ACCEPTED).target(TaskState.COMPLETED)
            .event(TaskEvent.COMPLETE);
    }
}

@Service
public class BidService {
    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    private static final String LOCK_SCRIPT =
        "if redis.call('get', KEYS[1]) == ARGV[1] then " +
        "return redis.call('del', KEYS[1]) " +
        "else " +
        "return 0 end";

    public boolean tryLock(Long taskId) {
        String lockKey = "task_lock:" + taskId;
        String requestId = UUID.randomUUID().toString();
        
        try {
            Boolean locked = redisTemplate.opsForValue()
                .setIfAbsent(lockKey, requestId, 10, TimeUnit.SECONDS);
            return Boolean.TRUE.equals(locked);
        } finally {
            // 释放锁逻辑（通过Lua脚本保证原子性）
            redisTemplate.execute(
                new DefaultRedisScript<>(LOCK_SCRIPT, Long.class),
                Collections.singletonList(lockKey),
                requestId
            );
        }
    }
}

# Python实现（可封装为微服务）
from sklearn.metrics.pairwise import cosine_similarity
import numpy as np

class TaskMatcher:
    def __init__(self):
        self.user_features = {}  # 用户技能特征向量
        self.task_features = {}  # 任务需求特征向量

    def train(self, user_skills, task_requirements):
        # 构建用户-技能矩阵（示例简化）
        for user_id, skills in user_skills.items():
            self.user_features[user_id] = np.array([skills.get(k, 0) for k in ALL_SKILLS])
        
        for task_id, reqs in task_requirements.items():
            self.task_features[task_id] = np.array([reqs.get(k, 0) for k in ALL_SKILLS])

    def match(self, user_id, top_k=5):
        if user_id not in self.user_features:
            return []
        
        user_vec = self.user_features[user_id].reshape(1, -1)
        similarities = cosine_similarity(user_vec, list(self.task_features.values()))
        
        # 获取相似度最高的top_k个任务
        task_indices = similarities.argsort()[0][-top_k:][::-1]
        return [list(self.task_features.keys())[i] for i in task_indices]

-- 任务表
CREATE TABLE `task` (
  `id` bigint NOT NULL AUTO_INCREMENT,
  `title` varchar(100) NOT NULL,
  `description` text,
  `reward` decimal(10,2) NOT NULL,
  `status` tinyint NOT NULL COMMENT '1-待接单 2-已接单 3-已完成',
  `creator_id` bigint NOT NULL,
  `create_time` datetime DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_status` (`status`),
  KEY `idx_create_time` (`create_time`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 任务附件表（MongoDB替代方案）
-- 使用MongoDB存储非结构化数据（如图片、文档）

version: '3.8'
services:
  app:
    build: .
    ports:
      - "8080:8080"
    depends_on:
      - db
      - redis
      - rabbitmq

  db:
    image: mysql:8.0
    environment:
      MYSQL_ROOT_PASSWORD: your_password
      MYSQL_DATABASE: witkey_platform
    volumes:
      - ./mysql-data:/var/lib/mysql

  redis:
    image: redis:7.0
    command: redis-server --requirepass your_redis_password

  rabbitmq:
    image: rabbitmq:3.12-management
    ports:
      - "15672:15672"