添加ClassServiceImpl.java

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

@@ -0,0 +1,79 @@
+package com.itheima.service.impl;
+
+
+import com.itheima.dao.ClassDao;
+import com.itheima.po.Class;
+import com.itheima.po.PageInfo;
+import com.itheima.service.ClassService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+/**
+ * 用户Service接口实现类
+ */
+@Service("classService")
+@Transactional
+public class ClassServiceImpl implements ClassService {
+	// classDao
+	@Autowired
+	private ClassDao classDao;
+
+
+	//分页查询
+	@Override
+	public PageInfo<Class> findPageInfo(String c_classname, String c_counsellor, Integer c_classid, Integer pageIndex, Integer pageSize) {
+		PageInfo<Class> pi = new PageInfo<Class>();
+		pi.setPageIndex(pageIndex);
+		pi.setPageSize(pageSize);
+		//获取总条数
+		Integer totalCount = classDao.totalCount(c_classname,c_classid,c_counsellor);
+		if (totalCount>0){
+			pi.setTotalCount(totalCount);
+			//每一页显示班级信息数
+			//currentPage = (pageIndex-1)*pageSize  当前页码数减1*最大条数=开始行数
+		List<Class> classList =	classDao.getClassList(c_classname,c_classid,c_counsellor,
+				     (pi.getPageIndex()-1)*pi.getPageSize(),pi.getPageSize());
+		  pi.setList(classList);
+		}
+		return pi;
+	}
+
+	@Override
+	public List<Class> getAll(){
+		List<Class> classList = classDao.getAll();
+		return  classList;
+	}
+
+	//通过id删除班级信息
+	@Override
+	public int deleteClass(Integer c_id) {
+		return classDao.deleteClass(c_id);
+	}
+
+	//添加班级信息
+	@Override
+	public int addClass(Class uclass) {
+		return classDao.addClass(uclass);
+	}
+
+	@Override
+	public Class findClassById (Integer c_id){
+		Class c = classDao.findClassById(c_id);
+		return  c;
+	}
+	//修改班级信息
+	@Override
+	public int updateClass(Class uclass) {
+		return classDao.updateClass(uclass);
+	}
+
+	//查询宿舍人员信息
+	@Override
+	public List<Class> findClassStudent(Class uclass) {
+		List<Class> c = classDao.findClassStudent(uclass);
+		return c;
+	}
+}