public List<User> findByName(String user_name) {
String sql = "select user_id,user_type,user_name from user where user_name like ?";
PooledConnection con;
con = this.getConnection();
PreparedStatement pst = con.getPrepareStatement(sql);
List<User> list = new ArrayList<User>();
try {
pst.setString(1, "%" + user_name + "%");
ResultSet res = pst.executeQuery();
while (res.next()) {
User u = new User();
u.setUser_id(res.getString(1));
u.setUser_type(res.getInt(2));
u.setUser_name(res.getString(3));
list.add(u);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
con.close();
}
return list;
}
public boolean updUser(User u) {
String sql;
if (u.getUser_psw().equals(""))
sql = "update user set user_name=?,user_type=? where user_id = ?";
else sql = "update user set user_name=?,user_psw=?,user_type=? where user_id = ?";
PooledConnection con;
con = this.getConnection();
PreparedStatement pst = con.getPrepareStatement(sql);
try {
pst.setString(1, u.getUser_name());
if (u.getUser_psw().equals("")) {
pst.setInt(2, u.getUser_type());
pst.setString(3, u.getUser_id());
} else {
pst.setString(2, u.getUser_psw());
pst.setInt(3, u.getUser_type());
pst.setString(4, u.getUser_id());
}
pst.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
return false;
} finally {
con.close();
}
return true;
}
public boolean check(User u) {
String sql = "select * from user where user_id=? and user_psw=?";
PooledConnection con;
con = this.getConnection();
PreparedStatement pst = con.getPrepareStatement(sql);
try {
pst.setString(1, u.getUser_id());
pst.setString(2, u.getUser_psw());
ResultSet res = pst.executeQuery();
return res.next();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return false;
} finally {
con.close();
}
}
public boolean save(User u) {
String sql = "insert into user values(?,?,?,?)";
PooledConnection con;
con = this.getConnection();
PreparedStatement pst = con.getPrepareStatement(sql);
try {
pst.setString(1, u.getUser_id());
pst.setInt(2, u.getUser_type());
pst.setString(3, u.getUser_psw());
pst.setString(4, u.getUser_name());
pst.executeUpdate();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return false;
} finally {
con.close();
}
return true;
}
public boolean updPermission(String user_id, int type) {
String sql = "update user set user_type = ? where user_id = ?";
PooledConnection con;
con = this.getConnection();
PreparedStatement pst = con.getPrepareStatement(sql);
List<User> list = new ArrayList<User>();
try {
pst.setInt(1, type);
pst.setString(2, user_id);
pst.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
return false;
} finally {
con.close();
}
return true;
}
public User loadById(String user_id) {
String sql = "select * from user where user_id=?";
PooledConnection con;
con = this.getConnection();
PreparedStatement pst = con.getPrepareStatement(sql);
try {
pst.setString(1, user_id);
ResultSet res = pst.executeQuery();
if (!res.next()) return null;
User u = new User();
u.setUser_id(user_id);
u.setUser_type(res.getInt(2));
u.setUser_name(res.getString(4));
return u;
} catch (SQLException e) {
e.printStackTrace();
} finally {
con.close();
}
return null;
}
