一个Swing的Table如何使得它的列自己适应内容的长度呢

superspiceshen

如题
谢谢指教！

ilcj

用vector
这是一个例子

1. import java.sql.*;
   
2. import javax.swing.table.*;
   
3. import javax.swing.*;
   
4. import java.util.*;
   
5. public class search extends JFrame {
   
6. public search() {
   
7. initComponents();
   
8. }
   
9. private void initComponents() {
   
10. javax.swing.JScrollPane resultScrollPane;
    
11. resultScrollPane = new javax.swing.JScrollPane();
    
12. resultTable = new javax.swing.JTable();
    
13. queryButton = new javax.swing.JButton();
    
14. 
    
15. setTitle("\u4fe1\u606f\u67e5\u8be2");
    
16. addWindowListener(new java.awt.event.WindowAdapter() {
    
17. public void windowClosing(java.awt.event.WindowEvent evt) {
    
18. exitForm(evt);
    
19. }
    
20. });
    
21. 
    
22. resultTable.setModel(new javax.swing.table.DefaultTableModel(
    
23. new Object [][] {
    
24. 
    
25. },
    
26. new String [] {
    
27. "姓名", "年", "月", "日"
    
28. }
    
29. ) {
    
30. Class[] types = new Class [] {
    
31. java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class
    
32. };
    
33. boolean[] canEdit = new boolean [] {
    
34. false, false, false, false
    
35. };
    
36. 
    
37. public Class getColumnClass(int columnIndex) {
    
38. return types [columnIndex];
    
39. }
    
40. 
    
41. public boolean isCellEditable(int rowIndex, int columnIndex) {
    
42. return canEdit [columnIndex];
    
43. }
    
44. });
    
45. resultScrollPane.setViewportView(resultTable);
    
46. 
    
47. getContentPane().add(resultScrollPane, java.awt.BorderLayout.CENTER);
    
48. 
    
49. queryButton.setText("\u67e5\u8be2");
    
50. queryButton.addActionListener(new java.awt.event.ActionListener() {
    
51. public void actionPerformed(java.awt.event.ActionEvent evt) {
    
52. queryResult(evt);
    
53. }
    
54. });
    
55. 
    
56. getContentPane().add(queryButton, java.awt.BorderLayout.SOUTH);
    
57. 
    
58. pack();
    
59. }
    
60. 
    
61. private void queryResult(java.awt.event.ActionEvent evt) {
    
62. Vector tem=new Vector(1,1);  
    
63. DefaultTableModel tModel = (DefaultTableModel)resultTable.getModel();
    
64. int rn = tModel.getRowCount();
    
65. for(int j = 0; j < rn; j++) {
    
66. tModel.removeRow(0);
    
67. }
    
68. DBManager db = new DBManager();
    
69. ResultSet rs = db.getResult("select * from birthday");
    
70. try {
    
71. if(rs == null) return;
    
72. while(rs.next()) {
    
73. String[] rowData = {null,null,null,null};
    
74. tem=new Vector(1,1);
    
75. tem.add(rs.getString("name"));
    
76. tem.add(rs.getString("year"));
    
77. tem.add(rs.getString("month"));
    
78. tem.add(rs.getString("day"));
    
79. tModel.addRow(tem);
    
80. }
    
81. rs.close();  
    
82. }
    
83. catch(Exception re) {
    
84. re.printStackTrace();
    
85. }
    
86. }
    
87. 
    
88. /** Exit the Application */
    
89. private void exitForm(java.awt.event.WindowEvent evt) {
    
90. System.exit(0);
    
91. }
    
92. 
    
93. /**
    
94. * @param args the command line arguments
    
95. */
    
96. public static void main(String args[]) {
    
97. new search().setVisible(true);
    
98. }
    
99. 
    
100. // 变量声明 - 不进行修改
     
101. private javax.swing.JButton queryButton;
     
102. private javax.swing.JTable resultTable;
     
103. // 变量声明结束
     
104. 
     
105. }
     

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