我已经编写了一个代码来查找给定的字符串。它找出给定的单词,它可能是单词或单词的子字符串。但是,我想找到确切的单词而不是子字符串。例如SearchExactword是一个单词,我搜索字符串作为单词。如果单词在文本中可用,它将突出显示但不突出显示单词的子字符串(SearchExactword)。请帮助我,谢谢。
我的代码是:
public class FindAWord extends javax.swing.JFrame {
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new FindAWord().setVisible(true);
}
});
}
private javax.swing.JScrollPane scrollPane;
private javax.swing.JTextField searchText;
private javax.swing.JTextPane textPane;
private javax.swing.JButton search;
public FindAWord() {
initComponents();
}
public void highLight(JTextComponent component, String patteren) {
try {
Document doc = component.getDocument();
String text = component.getText(0, doc.getLength());
int pos = component.getCaretPosition();
if (pos == doc.getLength()) {
pos = 0;
}
int index = text.toUpperCase().indexOf(patteren.toUpperCase(), pos);
int start = Utilities.getWordStart(component, index);
int end = Utilities.getWordEnd(component, index + patteren.length());
int patterenLn=patteren.length();
int diff=end-start;
if (index >= 0) {
if((start==index)&&(end==index+patterenLn+1)){
component.setSelectionStart(index);
component.setSelectionEnd(index + patteren.length());
component.getCaret().setSelectionVisible(true);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
@SuppressWarnings("unchecked")
//
private void initComponents(){
search = new javax.swing.JButton();
searchText = new javax.swing.JTextField();
scrollPane = new javax.swing.JScrollPane();
textPane = new javax.swing.JTextPane();
searchText.setText("test");
textPane.setText("test qweqw test asdasdas test");
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
search.setText("Search");
search.setFocusable(false);
search.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
searchActionPerformed(evt);
}
});
scrollPane.setViewportView(textPane);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(36, 36, 36)
.addComponent(search, javax.swing.GroupLayout.PREFERRED_SIZE, 91, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(32, 32, 32)
.addComponent(searchText, javax.swing.GroupLayout.PREFERRED_SIZE, 120, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(114, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(scrollPane)
.addContainerGap()));
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(36, 36, 36)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(search)
.addComponent(searchText, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(scrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 235, Short.MAX_VALUE)));
pack();
}// </editor-fold>
private void searchActionPerformed(java.awt.event.ActionEvent evt) {
highLight(textPane, searchText.getText());
}
}
答案 0 :(得分:1)
使用javax.swing.text.Utilities
。它有2种方法
public static final int getWordStart(JTextComponent c, int offs)
public static final int getWordEnd(JTextComponent c, int offs)
找到匹配项后,您可以查看找到的单词开始和结束。如果它与找到的字符串开始和结束偏移相同,则找到完全匹配(整个单词)
答案 1 :(得分:0)
有很多方法可以做到这一点。只是一个简单的逻辑/想法
String text="Entire text goes here";
String toFind="text";
StringTokenizer st = new StringTokenizer(text);
while(st.hasMoreTokens())
{
if(toFind.equals(st.nextToken())
{
System.out.println("Keyword matched");
return true;
}
}
return false;