package?com.java1234.dao;

import?java.sql.Connection;
import?java.sql.PreparedStatement;
import?java.sql.ResultSet;

import?com.java1234.model.Grade;
import?com.java1234.model.PageBean;
import?com.java1234.util.StringUtil;

public?class?GradeDao?{

	public?ResultSet?gradeList（Connection?conPageBean?pageBeanGrade?grade）throws?Exception{
		StringBuffer?sb=new?StringBuffer（“select?*?from?t_grade“）;
		if（grade!=null?&&?StringUtil.isNotEmpty（grade.getGradeName（）））{
			sb.append（“?and?gradeName?like?‘%“+grade.getGradeName（）+“%‘“）;
		}
		if（pageBean!=null）{
			sb.append（“?limit?“+pageBean.getStart（）+““+pageBean.getRows（））;
		}
		PreparedStatement?pstmt=con.prepareStatement（sb.toString（）.replaceFirst（“and“?“where“））;
		return?pstmt.executeQuery（）;
	}
	
	public?int?gradeCount（Connection?conGrade?grade）throws?Exception{
		StringBuffer?sb=new?StringBuffer（“select?count（*）?as?total?from?t_grade“）;
		if（StringUtil.isNotEmpty（grade.getGradeName（）））{
			sb.append（“?and?gradeName?like?‘%“+grade.getGradeName（）+“%‘“）;
		}
		PreparedStatement?pstmt=con.prepareStatement（sb.toString（）.replaceFirst（“and“?“where“））;
		ResultSet?rs=pstmt.executeQuery（）;
		if（rs.next（））{
			return?rs.getInt（“total“）;
		}else{
			return?0;
		}
	}
	
	/**
	?*?delete?from?tableName?where?field?in?（135）
	?*?@param?con
	?*?@param?delIds
	?*?@return
	?*?@throws?Exception
	?*/
	public?int?gradeDelete（Connection?conString?delIds）throws?Exception{
		String?sql=“delete?from?t_grade?where?id?in（“+delIds+“）“;
		PreparedStatement?pstmt=con.prepareStatement（sql）;
		return?pstmt.executeUpdate（）;
	}
	
	public?int?gradeAdd（Connection?conGrade?grade）throws?Exception{
		String?sql=“insert?into?t_grade?values（null??）“;
		PreparedStatement?pstmt=con.prepareStatement（sql）;
		pstmt.setString（1?grade.getGradeName（））;
		pstmt.setString（2?grade.getGradeDesc（））;
		return?pstmt.executeUpdate（）;
	}
	
	public?int?gradeModify（Connection?conGrade?grade）throws?Exception{
		String?sql=“update?t_grade?set?gradeName=?gradeDesc=??where?id=?“;
		PreparedStatement?pstmt=con.prepareStatement（sql）;
		pstmt.setString（1?grade.getGradeName（））;
		pstmt.setString（2?grade.getGradeDesc（））;
		pstmt.setInt（3?grade.getId（））;
		return?pstmt.executeUpdate（）;
	}
	
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????4400??2013-05-24?12:34??student\db_studentInfo.sql

?????文件????????661??2019-04-08?20:41??student\StudentInfoManage\.classpath

?????文件???????1050??2013-05-24?10:08??student\StudentInfoManage\.project

?????文件????????503??2013-05-24?10:08??student\StudentInfoManage\.settings\.jsdtscope

?????文件????????395??2013-05-24?10:08??student\StudentInfoManage\.settings\org.eclipse.jdt.core.prefs

?????文件????????481??2013-05-24?10:08??student\StudentInfoManage\.settings\org.eclipse.wst.common.component

?????文件????????345??2013-05-24?10:08??student\StudentInfoManage\.settings\org.eclipse.wst.common.project.facet.core.xml

?????文件?????????49??2013-05-24?10:08??student\StudentInfoManage\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2013-05-24?10:08??student\StudentInfoManage\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件???????3246??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\dao\GradeDao.class

?????文件???????4865??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\dao\StudentDao.class

?????文件???????1516??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\dao\UserDao.class

?????文件???????1082??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\model\Grade.class

?????文件????????813??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\model\PageBean.class

?????文件???????2466??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\model\Student.class

?????文件???????1073??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\model\User.class

?????文件???????1037??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\util\DateUtil.class

?????文件???????1648??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\util\DbUtil.class

?????文件???????1537??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\util\JsonUtil.class

?????文件????????951??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\util\ResponseUtil.class

?????文件????????633??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\util\StringUtil.class

?????文件???????2539??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\GradeComboListServlet.class

?????文件???????3097??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\GradeDeleteServlet.class

?????文件???????3144??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\GradeListServlet.class

?????文件???????3016??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\GradeSaveServlet.class

?????文件???????3044??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\LoginServlet.class

?????文件???????2496??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\StudentDeleteServlet.class

?????文件???????3683??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\StudentListServlet.class

?????文件???????3560??2019-04-08?20:43??student\StudentInfoManage\build\classes\com\java1234\web\StudentSaveServlet.class

?????文件???????2299??2013-05-24?10:08??student\StudentInfoManage\src\com\java1234\dao\GradeDao.java

............此處省略625個文件信息