JSP第十三周作业
1.第十二周上机作业（邮件功能）的控制层代码改用为servlet实现。
public class mail {
private Integer id;
private String Sender;
private String addressee;
private String title;
private String content;
private String time;
private Integer state;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getSender() {
return Sender;
}
public void setSender(String sender) {
Sender = sender;
}
public String getAddressee() {
return addressee;
}
public void setAddressee(String addressee) {
this.addressee = addressee;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public Integer getState() {
return state;
}
public void setState(Integer state) {
this.state = state;
}
@Override
public String toString() {
return "mail{" +
"id=" + id +
", Sender='" + Sender + '\'' +
", addressee='" + addressee + '\'' +
", title='" + title + '\'' +
", content='" + content + '\'' +
", time='" + time + '\'' +
", state=" + state +
'}';
}
}
public class mail {
private Integer id;
private String Sender;
private String addressee;
private String title;
private String content;
private String time;
private Integer state;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getSender() {
return Sender;
}
public void setSender(String sender) {
Sender = sender;
}
public String getAddressee() {
return addressee;
}
public void setAddressee(String addressee) {
this.addressee = addressee;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public Integer getState() {
return state;
}
public void setState(Integer state) {
this.state = state;
}
@Override
public String toString() {
return "mail{" +
"id=" + id +
", Sender='" + Sender + '\'' +
", addressee='" + addressee + '\'' +
", title='" + title + '\'' +
", content='" + content + '\'' +
", time='" + time + '\'' +
", state=" + state +
'}';
}
}
public class mail {
private Integer id;
private String Sender;
private String addressee;
private String title;
private String content;
private String time;
private Integer state;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getSender() {
return Sender;
}
public void setSender(String sender) {
Sender = sender;
}
public String getAddressee() {
return addressee;
}
public void setAddressee(String addressee) {
this.addressee = addressee;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public Integer getState() {
return state;
}
public void setState(Integer state) {
this.state = state;
}
@Override
public String toString() {
return "mail{" +
"id=" + id +
", Sender='" + Sender + '\'' +
", addressee='" + addressee + '\'' +
", title='" + title + '\'' +
", content='" + content + '\'' +
", time='" + time + '\'' +
", state=" + state +
'}';
}
}
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class mail_UserDao extends mail_BaseDao{
//--------------------用户登录---------------------
public boolean login(String name, String pwd) {
boolean f = false;
Connection conn = getConnection();
String sql = "select * from tb_user where username=? and password=?";
PreparedStatement ps = null;
ResultSet rs = null;
try {
ps = conn.prepareStatement(sql);
ps.setString(1, name);
ps.setString(2, pwd);
rs = ps.executeQuery();
if (rs.next())
f = true;
} catch (SQLException e) {
e.printStackTrace();
} finally {
closeAll(conn, ps, rs);
}
return f;
}
//--------------------用户注册--------------------
public void reg(String username, String password) {
Connection conn = getConnection();
PreparedStatement ps = null;
try {
String sql = "insert into tb_user(username,password) values(?,?)";
ps = conn.prepareStatement(sql);
ps.setString(1, username);
ps.setString(2, password);
ps.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
} finally {
closeAll(conn, ps, null);
}
}
}
import com.own.mywebdemo.Week5_Login_connecor.BaseDao; import org.jetbrains.annotations.NotNull; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.ArrayList; import java.util.Date; import java.util.List; public class MailDao extends mail_BaseDao { //--------------------查询所有邮件-------------------- public List<mail> getMailByReceiver(String name){ List<mail> list=new ArrayList<mail>(); Connection conn=getConnection(); String sql="select * from tb_mail where addressee=?"; PreparedStatement ps=null; ResultSet rs=null; try { ps = conn.prepareStatement(sql); ps.setString(1, name); rs=ps.executeQuery(); while(rs.next()){ mail m=new mail(); m.setId(rs.getInt(1)); m.setSender(rs.getString(2)); m.setAddressee(rs.getString(3)); m.setTitle(rs.getString(4)); m.setContent(rs.getString(5)); m.setTime(rs.getString(6)); m.setState(rs.getInt(7)); list.add(m); } } catch (SQLException e) { e.printStackTrace(); }finally{ closeAll(conn, ps, rs); } return list; } // --------------------插入邮件-------------------- public void addMail(mail m) { Connection conn = getConnection(); String sql = "insert into tb_mail(Sender,addressee,title,content,time,state) values(?,?,?,?,?,?)"; PreparedStatement ps = null; try { ps = conn.prepareStatement(sql); ps.setString(1, m.getSender()); ps.setString(2, m.getAddressee()); ps.setString(3, m.getTitle()); ps.setString(4, m.getContent()); ps.setDate(5, new java.sql.Date(new Date().getTime()));// 系统当前时间 ps.setInt(6, 0); ps.executeUpdate(); } catch (SQLException e) { e.printStackTrace(); } finally { closeAll(conn, ps, null); } } // --------------------删除邮件-------------------- public void deleteMail(int id) { Connection conn = getConnection(); String sql = "delete from tb_mail where id=?"; PreparedStatement ps = null; try { ps = conn.prepareStatement(sql); ps.setInt(1, id); ps.executeUpdate(); } catch (SQLException e) { e.printStackTrace(); }finally{ closeAll(conn, ps, null); } } //--------------------更新邮件状态-------------------- public void updataMail(int id){ Connection conn = getConnection(); String sql = "update tb_mail set state=1 where id=?"; PreparedStatement ps = null; try { ps = conn.prepareStatement(sql); ps.setInt(1, id); ps.executeUpdate(); } catch (SQLException e) { e.printStackTrace(); }finally{ closeAll(conn, ps, null); } } }
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>登录</title> </head> <body> <script type="text/javascript"> function check() { if (login.account.value==""){ alert("请输入账号!"); return; }else if(login.psw.value=="") { alert("请输入密码!"); return; } login.submit(); } </script> <form action="checkLog.jsp" method="post" name="login"> 账号:<input type="text" name="account"><br> 密码:<input type="password" name="psw"><br> <input type="button" value="登录" onclick="check()"> </form><br> <form action="Register.jsp" method="post"> <input type="submit" value="立即注册账户"> </form> </body> </html>
