添加VisitorServiceImpl.java

src/cn/edu/hactcm/Service/impl/VisitorServiceImpl.java

@@ -0,0 +1,58 @@
+package com.itheima.service.impl;
+
+import com.itheima.dao.VisitorDao;
+import com.itheima.po.PageInfo;
+import com.itheima.po.Visitor;
+import com.itheima.service.VisitorService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+/**
+ * @program: dormitorySystem
+ * @description: 访客
+ * @author: Joyrocky
+ * @create: 2019-05-14 12:39
+ **/
+@Service("visitorService")
+@Transactional
+public class VisitorServiceImpl implements VisitorService {
+    // 注入studentDao
+    @Autowired
+    private VisitorDao visitorDao;
+
+
+    //分页查询
+    @Override
+    public PageInfo<Visitor> findPageInfo(String v_name, Integer v_phone , Integer pageIndex, Integer pageSize) {
+        PageInfo<Visitor> pi = new PageInfo<Visitor>();
+        pi.setPageIndex(pageIndex);
+        pi.setPageSize(pageSize);
+        //获取总条数
+        Integer totalCount = visitorDao.totalCount(v_name,v_phone);
+        if (totalCount>0){
+            pi.setTotalCount(totalCount);
+            //每一页显示学生信息数
+            //currentPage = (pageIndex-1)*pageSize  当前页码数减1*最大条数=开始行数
+            List<Visitor> visitorList =	visitorDao.getVisitorList(v_name,v_phone,
+                    (pi.getPageIndex()-1)*pi.getPageSize(),pi.getPageSize());
+            pi.setList(visitorList);
+        }
+        return pi;
+    }
+
+    @Override
+    public List<Visitor> getAll(){
+        List<Visitor> visitorList = visitorDao.getAll();
+        return visitorList;
+    }
+
+    //添加学生信息
+    @Override
+    public  int addVisitor(Visitor visitor) {
+        return visitorDao.addVisitor(visitor);
+    }
+}
+