我已經(jīng)創(chuàng)建了一個(gè)用戶登錄的界面，現(xiàn)在我想創(chuàng)建另一個(gè)界面來顯示登錄用戶的地籍?dāng)?shù)據(jù)。我想知道我是怎么做的？是這樣嗎？（我創(chuàng)建了一個(gè)單獨(dú)的接口類來查詢數(shù)據(jù)庫）我實(shí)例化了接口并讓 textField 發(fā)送了 ResultSet 結(jié)果 public boolean checkLogin(String nick, String senha) { Connection con = JBancoDeDados.getConnection(); PreparedStatement stmt = null; ResultSet rs = null; boolean check = false; try { stmt = con.prepareStatement("SELECT * FROM usuario WHERE Nick = ? and Senha = ?"); stmt.setString(1, nick); stmt.setString(2, senha); rs = stmt.executeQuery(); if (rs.next()) { check = true; Interface_Perfil ip = new Interface_Perfil(); ip.txtExibirNomePerfil.setText(rs.getString("Nome")); ip.txtExibirNickPerfil.setText(rs.getString("Nick")); ip.txtExibirSenha.setText("Senha"); ip.txtExibirEmailPerfil.setText(rs.getString("Email")); } } catch (SQLException ex) { Logger.getLogger(UsuarioDAO.class.getName()).log(Level.SEVERE, null, ex); } finally { JBancoDeDados.closeConnection(con, stmt, rs); } return check; }
1 回答
一只甜甜圈
TA貢獻(xiàn)1836條經(jīng)驗(yàn) 獲得超5個(gè)贊
您的代碼中沒有錯(cuò)誤，只是您錯(cuò)過了添加ip.setVisible(true);以下行ip.txtExibirEmailPerfil.setText(rs.getString("Email"));以顯示 Interface_Perfil。
下面是我的工作代碼
家
login.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String Name = name.getText();
String Pass = new String(pass.getPassword());
UserAPI user = new UserAPI();
user.checklogin(Name, Pass);
}
private void setVisible(boolean b) {
// TODO Auto-generated method stub
}
});
用戶接口
public boolean checklogin(String name, String Pass) throws Exception {
boolean check = false;
String sql = "SELECT * FROM admin WHERE name =? and password= ?";
DatabaseConnection db = new DatabaseConnection();
Connection conn = db.getConnection();
PreparedStatement ps = conn.prepareStatement(sql);
ps.setString(1, name);
ps.setString(2, Pass);
ResultSet rs = ps.executeQuery();
if (rs.next()) {
check = true;
Interface_Perfil ip = new Interface_Perfil();
System.out.println("dddd");
ip.txtExibirNomePerfil.setText(rs.getString("name"));
ip.txtExibirNickPerfil.setText(rs.getString("password"));
ip.txtExibirSenha.setText("Senha");
ip.txtExibirEmailPerfil.setText("email@hotmail.com");
ip.setVisible(true);
}
ps.close();
rs.close();
conn.close();
return check;
}
我的項(xiàng)目在家庭課上運(yùn)行。
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