• 用java swing 中的jTextPane实现局部文本改色添加删除线等操作


    用java swing 中的jTextPane实现局部文本改色添加删除线等操作,以下是执行图片:


    实现代码如下:

    /*
     * To change this template, choose Tools | Templates
     * and open the template in the editor.
     */

    /*
     * NewJFrame.java
     *
     * Created on 2011-2-21, 9:04:46
     */

    package desktopapplicationmenu;

    import java.awt.Color;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import javax.swing.text.BadLocationException;
    import javax.swing.text.Document;
    import javax.swing.text.SimpleAttributeSet;
    import javax.swing.text.StyleConstants;

    /**
     *
     * @author
     */

    public class NewJFrame extends javax.swing.JFrame {

        /** Creates new form NewJFrame */
        public NewJFrame() {
            initComponents();
            jTextPane1.setText("http://www.my400800.cn ");
            // jEditorPane1.("<html>   <head>   <style type=´text/css´>     A{text-decoration: none; color: #000000; }     A:hover {text-decoration: underline; color: #FF0000; }   </style> </head> <body>     <a href=\"www.google.com\">Google</a><br>     <a href=\"www.yahoo.com\">Yahoo!</a> </body> </html>  ");
        }

        /** This method is called from within the constructor to
         * initialize the form.
         * WARNING: Do NOT modify this code. The content of this method is
         * always regenerated by the Form Editor.
         */
        @SuppressWarnings("unchecked")
        // <editor-fold defaultstate="collapsed" desc="Generated Code">

        private void initComponents() {

            jButton1 = new javax.swing.JButton();
            jButton2 = new javax.swing.JButton();
            jScrollPane2 = new javax.swing.JScrollPane();
            jTextPane1 = new javax.swing.JTextPane();
            jButton3 = new javax.swing.JButton();

            setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
            setName("Form"); // NOI18N

            org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(desktopapplicationmenu.DesktopApplicationMenu.class).getContext().getResourceMap(NewJFrame.class);
            jButton1.setLabel(resourceMap.getString("jButton1.label")); // NOI18N
            jButton1.setName("jButton1"); // NOI18N
            jButton1.addActionListener(new java.awt.event.ActionListener() {
                public void actionPerformed(java.awt.event.ActionEvent evt) {
                    jButton1ActionPerformed(evt);
                }
            });

            jButton2.setText(resourceMap.getString("jButton2.text")); // NOI18N
            jButton2.setName("jButton2"); // NOI18N
            jButton2.addActionListener(new java.awt.event.ActionListener() {
                public void actionPerformed(java.awt.event.ActionEvent evt) {
                    jButton2ActionPerformed(evt);
                }
            });

            jScrollPane2.setName("jScrollPane2"); // NOI18N

            jTextPane1.setText(resourceMap.getString("jTextPane1.text")); // NOI18N
            jTextPane1.setName("jTextPane1"); // NOI18N
            jScrollPane2.setViewportView(jTextPane1);

            jButton3.setText(resourceMap.getString("jButton3.text")); // NOI18N
            jButton3.setName("jButton3"); // NOI18N
            jButton3.addActionListener(new java.awt.event.ActionListener() {
                public void actionPerformed(java.awt.event.ActionEvent evt) {
                    jButton3ActionPerformed(evt);
                }
            });

            javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
            getContentPane().setLayout(layout);
            layout.setHorizontalGroup(
                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addGroup(layout.createSequentialGroup()
                            .addGap(247, 247, 247)
                            .addComponent(jButton2)
                            .addGap(33, 33, 33)
                            .addComponent(jButton1)
                            .addGap(55, 55, 55)
                            .addComponent(jButton3))
                        .addGroup(layout.createSequentialGroup()
                            .addGap(18, 18, 18)
                            .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 838, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addContainerGap(39, Short.MAX_VALUE))
            );
            layout.setVerticalGroup(
                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                    .addContainerGap()
                    .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 512, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 47, Short.MAX_VALUE)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                        .addComponent(jButton1)
                        .addComponent(jButton3)
                        .addComponent(jButton2))
                    .addGap(37, 37, 37))
            );

            jButton3.getAccessibleContext().setAccessibleName(resourceMap.getString("jButton3.AccessibleContext.accessibleName")); // NOI18N

            pack();
        }// </editor-fold>

        private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                        
            // TODO add your handling code here:
            Document doc = jTextPane1.getStyledDocument();
            int istartPosition = 1;
            int iType = 1;
            int iPK = 1;
            SetAddText(istartPosition, iType, iPK, jTextPane1, doc);

            //        String str = "";
    //        Document doc = jTextPane1.getStyledDocument();
    //
    //        str = jTextPane1.getText();
    //
    //
    //        int iStart = str.indexOf("7891");
    //        int iEnd = str.indexOf("1011");
    //        try {
    //            String strReplace = str.substring(iStart, iEnd);
    //            System.out.println(strReplace);
    //
    //            doc.remove(iStart, strReplace.replace("\n", "").length());
    //
    //            doc.insertString(iStart, strReplace, getAddAttrSet());
    //        } catch (BadLocationException ex) {
    //            Logger.getLogger(NewJFrame.class.getName()).log(Level.SEVERE, null, ex);
    //        }
    //
    //        jTextPane1.setSelectionStart(iStart);
    //        jTextPane1.setSelectionEnd(iEnd);
    //        jTextPane1.setSelectionEnd(iStart);
    //        //DefaultStyledDocument.ElementEdit;
    //        jTextPane1.setSelectedTextColor(Color.red);


        }                                       

        private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                        
            String str = "";
            for (int i = 0; i < 10; i++) {
                str += "" + i + (i + 1) + (i + 2) + (i + 3) + (i + 4) + "\r\n";
            }
            Document doc = jTextPane1.getStyledDocument();
            jTextPane1.setText(str);



        }                                       

        private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
            // TODO add your handling code here:
            Document doc = jTextPane1.getStyledDocument();
            int istartPosition = 1;
            int iType = 1;
            int iPK = 1;
            SetDelText(istartPosition, iType, iPK, jTextPane1, doc);
        }

        /**
         * @param args the command line arguments
         */

        public static void main(String args[]) {
            java.awt.EventQueue.invokeLater(new Runnable() {

                public void run() {
                    new NewJFrame().setVisible(true);
                }
            });
        }
        // Variables declaration - do not modify
        private javax.swing.JButton jButton1;
        private javax.swing.JButton jButton2;
        private javax.swing.JButton jButton3;
        private javax.swing.JScrollPane jScrollPane2;
        private javax.swing.JTextPane jTextPane1;
        // End of variables declaration

        /**
         * 返回 新添加属性样式
         *
         * @return
         */

        public SimpleAttributeSet getAddAttrSet() {
            SimpleAttributeSet attrSet = new SimpleAttributeSet();

            StyleConstants.setItalic(attrSet, false);
            StyleConstants.setUnderline(attrSet, false);
            StyleConstants.setFontSize(attrSet, 16);
            StyleConstants.setForeground(attrSet, Color.red);
            return attrSet;
        }

        /**
         * 返回 删除加属性样式
         *
         * @return
         */

        public SimpleAttributeSet getDelAttrSet() {
            SimpleAttributeSet attrSet = new SimpleAttributeSet();

            StyleConstants.setItalic(attrSet, true);
            StyleConstants.setUnderline(attrSet, true);
            StyleConstants.setFontSize(attrSet, 16);
            StyleConstants.setForeground(attrSet, Color.BLUE);
            StyleConstants.setStrikeThrough(attrSet, true);
            return attrSet;
        }

        /**
         * 设定添加文本颜色
         * @param istartPosition 字符开始检索位置
         * @param iType          类型:属性、段位、状态
         * @param iPK         设定属性PK
         */

        public void SetAddText(int istartPosition, int iType, int iPK, javax.swing.JTextPane jTextPaneObj, Document doc) {
            String strReplaceForm = "";
            istartPosition = 10;
            String strReplaceTo = "http://www.my400800.cn";
            SimpleAttributeSet attrSet = getAddAttrSet();
            SetText(istartPosition, jTextPaneObj, doc, strReplaceForm, strReplaceTo, attrSet);
        }

        /**
         * 设定添加文本颜色
         * @param istartPosition 字符开始检索位置
         * @param iType          类型:属性、段位、状态
         * @param iPK         设定属性PK
         */

        public void SetDelText(int istartPosition, int iType, int iPK, javax.swing.JTextPane jTextPaneObj, Document doc) {
            String strReplaceForm = "http://www.my400800.cn";
            String strReplaceTo = "http://www.my400800.cn";
            //istartPosition = 10;
            SimpleAttributeSet attrSet = getDelAttrSet();
            SetText(istartPosition, jTextPaneObj, doc, strReplaceForm, strReplaceTo, attrSet);
        }

        /**
         * 设定实际控件上的显示状态
         * @param istartPosition  文本检索开始位置
         * @param jTextPaneObj    文本存放控件
         * @param doc             属性设定样式雷
         * @param strReplaceForm  替换前内容(如果该值为空,重该位置直接插入)
         * @param strReplaceTo    替换后内容
         * @param attrSet
         */

        public void SetText(int istartPosition, javax.swing.JTextPane jTextPaneObj, Document doc, String strReplaceForm, String strReplaceTo, SimpleAttributeSet attrSet) {
            try {
                String str = jTextPaneObj.getText();
                int iStart = istartPosition;
                if (strReplaceForm != null && strReplaceForm.length() > 0) {
                    istartPosition = str.replace("\n", "").indexOf(strReplaceForm, istartPosition);
                    iStart = istartPosition;
                    int iEnd = iStart + strReplaceTo.length();
                    String strReplace = str.substring(iStart, iEnd);
                    System.out.println(strReplace);
                    doc.remove(iStart, strReplace.replace("\n", "").length());
                }
                doc.insertString(iStart, strReplaceTo, attrSet);
                jTextPane1.setSelectionStart(iStart);
                jTextPane1.setSelectionEnd(iStart + 1);

            } catch (BadLocationException ex) {
                Logger.getLogger(NewJFrame.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }

    
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  • 原文地址:https://www.cnblogs.com/jishu/p/1961412.html
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