java - 在netbeans中单击运行时Jpanel不显示
问题描述
我目前正在开发一个 java 桌面项目,奇怪的是,每当我点击运行按钮时,Jpanel 都不会出现。我宣布这是主要的,但它仍然不起作用。有任何想法吗 ?
这是我的 Jpanel 表单的代码。
提前致谢!。
package consumidor;
public class ventana extends javax.swing.JPanel {
public ventana() {
initComponents();
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new ventana().setVisible(true);
}
});
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jInternalFrame1 = new javax.swing.JInternalFrame();
jPanel2 = new javax.swing.JPanel();
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
buscarProductoTxt = new javax.swing.JTextField();
btnBuscarProducto = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
buscarProductoArea = new javax.swing.JTextArea();
jInternalFrame1.setVisible(true);
javax.swing.GroupLayout jInternalFrame1Layout = new javax.swing.GroupLayout(jInternalFrame1.getContentPane());
jInternalFrame1.getContentPane().setLayout(jInternalFrame1Layout);
jInternalFrame1Layout.setHorizontalGroup(
jInternalFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 0, Short.MAX_VALUE)
);
jInternalFrame1Layout.setVerticalGroup(
jInternalFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 0, Short.MAX_VALUE)
);
jLabel1.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
jLabel1.setText("Buscar producto por rut");
jLabel2.setText("Ingresar rut del proveedor");
buscarProductoTxt.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
buscarProductoTxtActionPerformed(evt);
}
});
btnBuscarProducto.setText("Consultar");
btnBuscarProducto.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnBuscarProductoActionPerformed(evt);
}
});
buscarProductoArea.setColumns(20);
buscarProductoArea.setRows(5);
jScrollPane1.setViewportView(buscarProductoArea);
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jLabel1)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(buscarProductoTxt, javax.swing.GroupLayout.PREFERRED_SIZE, 65, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(btnBuscarProducto))
.addComponent(jScrollPane1))
.addContainerGap(24, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(buscarProductoTxt, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnBuscarProducto, javax.swing.GroupLayout.PREFERRED_SIZE, 20, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 56, Short.MAX_VALUE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, 324, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
);
}// </editor-fold>
private void buscarProductoTxtActionPerformed(java.awt.event.ActionEvent evt) {
}
private void btnBuscarProductoActionPerformed(java.awt.event.ActionEvent evt) {
String producto=buscarProductoTxt.getText();
buscarProductoRut(producto);
buscarProductoArea.setText("Rut proveedor: "+mostrarRut()+", Descripcion"
+ ": "+mostrarDecripcion());
}
// Variables declaration - do not modify
private javax.swing.JButton btnBuscarProducto;
private javax.swing.JTextArea buscarProductoArea;
private javax.swing.JTextField buscarProductoTxt;
private javax.swing.JInternalFrame jInternalFrame1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JScrollPane jScrollPane1;
// End of variables declaration
private static boolean buscarProductoRut(java.lang.String arg0) {
webservice.ProcesoProductos_Service service = new webservice.ProcesoProductos_Service();
webservice.ProcesoProductos port = service.getProcesoProductosPort();
return port.buscarProductoRut(arg0);
}
private static String mostrarRut() {
webservice.ProcesoProductos_Service service = new webservice.ProcesoProductos_Service();
webservice.ProcesoProductos port = service.getProcesoProductosPort();
return port.mostrarRut();
}
private static String mostrarDecripcion() {
webservice.ProcesoProductos_Service service = new webservice.ProcesoProductos_Service();
webservice.ProcesoProductos port = service.getProcesoProductosPort();
return port.mostrarDecripcion();
}
}
解决方案
这没有什么“奇怪”的。您的 ventana 类是一个 JPanel,是的,您创建它并将其设置为可见,但是 JPanel 本身不能显示,实际上要显示它,它需要是可见的“顶级窗口”的一部分,例如作为 JFrame 或 JDialog。所以如果你想在它自己单独的对话框窗口中显示这个JPanel,就把它放到一个JDialog中,pack()
这个对话框,然后设置这个对话框可见。或者快速而肮脏的方法是将ventana JPanel放入JOptionPane中。例如,
JOptionPane.showMessageDialog(null, new ventana());
然后,一个 JOptionPane 将创建并显示一个模态JDialog,它将显示您的 ventana 对象。
请注意,ventana 类名应以大写字母开头,就像所有 Java 类名一样。
推荐阅读
- java - 如何在 Java 中更改 RadioGroup 的颜色
- jenkins-plugins - 如何限制 jenkinsfile 上复选框的选择数量
- wordpress - 预加载revicons.woff?5510888和woff2
- sql - 我如何为 mongodb(cmd) "Update Doctors Set Talent=Talent.Replace(" ","&").ToLower()" 创建这个查询
- go - 如何将 golang 图像中每个像素的每种颜色分配给它自己的单独通道?
- azure - apim 调用函数应用的部署脚本
- java - 填写用户类时出现 ClassCastException 错误
- javascript - 如何在 jsx 中渲染字符串在对象数组上使用 reduce
- mysql - MySQL 获取当前 + N 前几个月
- java - Java:将使用服务器公钥加密的随机对称密钥发送到该服务器是否安全?