javaWeb学生信息管理源代码

有老师，学生，管理员三种用户，不同的用户有不同的权限，实现了基本的增删改查的功能，IDE:java EE

package bean;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class AddBean {

	String id = null;
	String name = null;
	String sex = null;
	String age = null;
	String error = “信息添加成功“;

	public boolean driver（） {
		try {
			Class.forName（“com.mysql.jdbc.Driver“）;
		} catch （Exception e） {
			error = “数据库驱动加载失败“;
			return false;
		}
		return true;
	}

	public String add（） {
		String addId = this.id;
		String addName = this.name;
		String addSex = this.sex;
		String addAge = this.age;
		String passwd = “123456“;
		String condition = “insert into rj1304 values （‘“ + addId + “‘‘“ + addName + “‘‘“ + addSex + “‘‘“ + addAge
				+ “‘）“;
		String addUser = “i

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        841  2015-12-25 09:39  SYfive\.classpath

     文件       1039  2015-12-25 09:39  SYfive\.project

     文件        567  2015-12-25 09:39  SYfive\.settings\.jsdtscope

     文件        364  2015-12-25 09:39  SYfive\.settings\org.eclipse.jdt.core.prefs

     文件        470  2015-12-25 09:39  SYfive\.settings\org.eclipse.wst.common.component

     文件        345  2015-12-25 09:40  SYfive\.settings\org.eclipse.wst.common.project.facet.core.xml

     文件         49  2015-12-25 09:39  SYfive\.settings\org.eclipse.wst.jsdt.ui.superType.container

     文件          6  2015-12-25 09:39  SYfive\.settings\org.eclipse.wst.jsdt.ui.superType.name

     文件       3213  2015-12-26 08:53  SYfive\build\classes\bean\AddBean.class

     文件       1410  2015-12-25 13:23  SYfive\build\classes\bean\ConnectSql.class

     文件       2388  2015-12-26 08:54  SYfive\build\classes\bean\DelBean.class

     文件        880  2015-12-25 13:23  SYfive\build\classes\bean\MessageBean.class

     文件       1506  2015-12-27 13:42  SYfive\build\classes\bean\PageShowStuMsgBean.class

     文件       3177  2015-12-25 13:23  SYfive\build\classes\bean\SearchBean.class

     文件       1554  2015-12-27 13:53  SYfive\build\classes\bean\ShowStudentMessageBean.class

     文件       1557  2015-12-25 21:33  SYfive\build\classes\bean\ShowTeacherMessageBean.class

     文件       1867  2015-12-25 13:23  SYfive\build\classes\bean\UpdateBean.class

     文件       4440  2015-12-27 13:32  SYfive\build\classes\servlet\AddGradeServlet.class

     文件       2901  2015-12-25 15:21  SYfive\build\classes\servlet\AddServlet.class

     文件       3272  2015-12-26 09:49  SYfive\build\classes\servlet\AddTeacherServlet.class

     文件       2701  2015-12-25 15:45  SYfive\build\classes\servlet\DelServlet.class

     文件       3052  2015-12-25 22:10  SYfive\build\classes\servlet\DelTeacherServlet.class

     文件       1834  2015-12-27 12:45  SYfive\build\classes\servlet\JudgeTeacherLimitServlet.class

     文件       3587  2015-12-27 14:34  SYfive\build\classes\servlet\SearchGradeServlet.class

     文件       3131  2015-12-25 13:23  SYfive\build\classes\servlet\SearchServlet.class

     文件       4598  2015-12-25 16:49  SYfive\build\classes\servlet\ShowMessageServlet.class

     文件       4631  2015-12-25 16:57  SYfive\build\classes\servlet\ShowMessageServletUpdate.class

     文件       4979  2015-12-25 19:28  SYfive\build\classes\servlet\ShowStudentMessageServlet.class

     文件       4624  2015-12-25 21:42  SYfive\build\classes\servlet\ShowTeacherMessageServlet.class

     文件       5813  2015-12-27 14:36  SYfive\build\classes\servlet\TeacherServlet.class

............此处省略66个文件信息