添加对操作员的简单操作

src/main/java/cn/mafangui/hotel/service/WorkerService.java

@@ -0,0 +1,15 @@
+package cn.mafangui.hotel.service;
+
+import cn.mafangui.hotel.entity.Worker;
+
+import java.util.List;
+
+public interface WorkerService {
+
+    int addWorker(Worker worker);
+    int delWorker(String userName);
+    int updateWorker(Worker worker);
+    Worker selectWorker(String userName);
+    List<Worker> findAllWorker();
+    Worker login(Worker worker);
+}

src/main/java/cn/mafangui/hotel/service/impl/WorkerServiceImpl.java

@@ -0,0 +1,46 @@
+package cn.mafangui.hotel.service.impl;
+
+import cn.mafangui.hotel.entity.Worker;
+import cn.mafangui.hotel.mapper.WorkerMapper;
+import cn.mafangui.hotel.service.WorkerService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class WorkerServiceImpl implements WorkerService {
+
+    @Autowired
+    private WorkerMapper workerMapper;
+
+    @Override
+    public int addWorker(Worker worker) {
+        return workerMapper.insertSelective(worker);
+    }
+
+    @Override
+    public int delWorker(String userName) {
+        return workerMapper.deleteByUserName(userName);
+    }
+
+    @Override
+    public int updateWorker(Worker worker) {
+        return workerMapper.updateByUserNameSelective(worker);
+    }
+
+    @Override
+    public Worker selectWorker(String userName) {
+        return workerMapper.selectByUserName(userName);
+    }
+
+    @Override
+    public List<Worker> findAllWorker() {
+        return workerMapper.findAll();
+    }
+
+    @Override
+    public Worker login(Worker worker) {
+        return workerMapper.selectByUserNameAndPassword(worker);
+    }
+}