我试图动态创建jlabels和jtextfields,然后添加到jPanel,用户可以在其中将数据插入到数据库中的表中。动态创建Jlabel的颜色
我从数据库中检索所有表格属性的名称,然后我必须为每个这些名称创建一个jlabel和一个jtext。它的结果应该是如下所示(如果在JPanel的底部没有更多的空间应该只创建的标签5):
我试图使用的GroupLayout和SequentialGroup但我不能实现类似的东西。我取得了一些完全尴尬的东西,我无法理解并解决它。
称为“ESTADO”应该是下的“SIGLA”标签和带标签的标签“插入表是:”文本应是在屏幕的左手侧,如在第一图片。
我的代码是:
ArrayList<String[]> tableAtts = sql.getTableAttributeNames(table);
javax.swing.GroupLayout jPDataInsertionLayout = new javax.swing.GroupLayout(jPDataInsertion);
jPDataInsertion.setLayout(jPDataInsertionLayout);
GroupLayout.SequentialGroup shgp = jPDataInsertionLayout.createSequentialGroup();
GroupLayout.SequentialGroup svgp = jPDataInsertionLayout.createSequentialGroup();
jPDataInsertionLayout.setHorizontalGroup(
jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
.addGroup(shgp));
jPDataInsertionLayout.setVerticalGroup(
jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)
.addGroup(svgp));
//shgp.addContainerGap();
svgp.addContainerGap().addComponent(jLInsertingTable);
for (String[] values : tableAtts) {
JLabel jLTableAtt = new JLabel(values[0]);
JTextField jTFTableAtt = new JTextField();
jTFTableAtt.setColumns(13);
shgp.addComponent(true,jLTableAtt)
.addGap(18, 18, 18)
.addComponent(jTFTableAtt, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE);
svgp.addGap(18, 18, 18)
.addGroup(jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLTableAtt, javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTFTableAtt,javax.swing.GroupLayout.Alignment.BASELINE ,javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE));
}
shgp.addComponent(jLInsertingTable);
编辑:
使用什么#rcook说,我改变了团体和设法创造我想要的东西。 这里是我设法创建代码:
ArrayList<String[]> tableAtts = sql.getTableAttributeNames(table);
ArrayList<JLabel> attLabels = new ArrayList<>();
ArrayList<JTextField> attFields = new ArrayList<>();
javax.swing.GroupLayout jPDataInsertionLayout = new javax.swing.GroupLayout(jPDataInsertion);
jPDataInsertion.setLayout(jPDataInsertionLayout);
GroupLayout.SequentialGroup hsg = jPDataInsertionLayout.createSequentialGroup();
ArrayList<String[]> tempTableAtt = new ArrayList<>(tableAtts);
for(int i = 0; (!tempTableAtt.isEmpty()) && i < COLUMN_SIZE ; i++){
GroupLayout.ParallelGroup innerhpg = jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false);
for(int j = 0; (!tempTableAtt.isEmpty()) && j < ROW_SIZE ; j++){
String[] att = tempTableAtt.get(0);
GroupLayout.SequentialGroup innerhsg = jPDataInsertionLayout.createSequentialGroup();
JLabel jLTableAtt = new JLabel(att[0]);
JTextField jTFTableAtt = new JTextField();
jTFTableAtt.setColumns(13);
attLabels.add(jLTableAtt);
attFields.add(jTFTableAtt);
innerhsg.addComponent(jLTableAtt)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTFTableAtt);
innerhpg.addGroup(javax.swing.GroupLayout.Alignment.LEADING, innerhsg);
tempTableAtt.remove(att);
}
hsg.addGap(18,18,18).addGroup(innerhpg);
}
jPDataInsertionLayout.setHorizontalGroup(
jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPDataInsertionLayout.createSequentialGroup()
.addContainerGap()
.addGroup(jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLInsertingTable)
.addGroup(hsg))));
GroupLayout.SequentialGroup vsg = jPDataInsertionLayout.createSequentialGroup();
vsg.addContainerGap()
.addComponent(jLInsertingTable);
for(int i = 0; i < tableAtts.size() && i < ROW_SIZE; i++){
GroupLayout.ParallelGroup vpg = jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE);
vpg.addComponent(attLabels.get(i))
.addComponent(attFields.get(i), javax.swing.GroupLayout.PREFERRED_SIZE,javax.swing.GroupLayout.DEFAULT_SIZE,javax.swing.GroupLayout.PREFERRED_SIZE);
for(int j = 0; (tableAtts.size() > ROW_SIZE) && ((i+(ROW_SIZE*(j+1))) < tableAtts.size()) && j < COLUMN_SIZE; j++){
vpg.addComponent(attLabels.get(i+(ROW_SIZE*(j+1))))
.addComponent(attFields.get(i+(ROW_SIZE*(j+1))), javax.swing.GroupLayout.PREFERRED_SIZE,javax.swing.GroupLayout.DEFAULT_SIZE,javax.swing.GroupLayout.PREFERRED_SIZE);
}
vsg.addGap(18, 18, 18).addGroup(vpg);
}
jPDataInsertionLayout.setVerticalGroup(
jPDataInsertionLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(vsg));
我不知道这是否是最好的解决方案,但它的工作原理。
我强烈建议看看JGoodies的['FormLayout'](http://www.jgoodies.com/freeware/libraries/forms/)。使用'LayoutManager'轻松制作“表格” – Robin
看起来像更适合2列表('JTable')的数据。为了更快地获得更好的帮助,请发布[SSCCE](http://sscce.org/)。 –