Java实现查找替换功能

来源：互联网发布：mac怎么改编辑：程序博客网时间：2024/05/17 10:05

查找

if(searchTxt.getText().equals("")){                    JOptionPane.showMessageDialog(null, "查找内容不能为空！");                }else if(!searchTxt.getText().equals("")){                    //searchDialog.dispose();                    if(fileChoose.focus == 1){                        fileChoose.tp1.requestFocus(true);                        str = fileChoose.tp1.getText();                        startPosition = str.indexOf(searchTxt.getText());                        endPosition = startPosition + searchTxt.getText().length();                        fileChoose.tp1.select(startPosition, endPosition);                        newEndPosition = endPosition;                    }else if(fileChoose.focus == 2){                        fileChoose.tp2.requestFocus(true);                        str = fileChoose.tp2.getText();                        startPosition = str.indexOf(searchTxt.getText());                        endPosition = startPosition + searchTxt.getText().length();                        fileChoose.tp2.select(startPosition, endPosition);                        newEndPosition = endPosition;                    }                }

查找下一处

nextTemp = newEndPosition;                if(fileChoose.focus == 1){                    strAll = fileChoose.tp1.getText();                    fileChoose.tp1.select(nextTemp, strAll.length());//选中所有未查找的字符串                    nextStr = fileChoose.tp1.getSelectedText();                    newStartPosition = nextStr.indexOf(searchTxt.getText()) + nextTemp;//在未查找的字符串中查找对应字符在tp1中的位置                    newEndPosition = newStartPosition + searchTxt.getText().length();                    fileChoose.tp1.select(newStartPosition, newEndPosition);//找到文本，选择文本                }else if(fileChoose.focus == 2){                    strAll = fileChoose.tp2.getText();                    fileChoose.tp2.select(nextTemp, strAll.length());//选中所有未查找的字符串                    nextStr = fileChoose.tp2.getSelectedText();                    newStartPosition = nextStr.indexOf(searchTxt.getText()) + nextTemp;//在未查找的字符串中查找对应字符在tp1中的位置                    newEndPosition = newStartPosition + searchTxt.getText().length();                    fileChoose.tp2.select(newStartPosition, newEndPosition);//找到文本，选择文本                }

替换

if(fileChoose.focus == 1){                    fileChoose.tp1.requestFocus(true);                    str = fileChoose.tp1.getText();                    startPosition = str.indexOf(searchTxt.getText());                    endPosition = startPosition + searchTxt.getText().length();                    fileChoose.tp1.replaceSelection(replaceTxt.getText());                    newEndPosition = endPosition;                }else if(fileChoose.focus == 2){                    fileChoose.tp2.requestFocus(true);                    str = fileChoose.tp2.getText();                    startPosition = str.indexOf(searchTxt.getText());                    endPosition = startPosition + searchTxt.getText().length();                    fileChoose.tp2.replaceSelection(replaceTxt.getText());                    newEndPosition = endPosition;                }

替换下一处

if(fileChoose.focus == 1){                    fileChoose.tp1.requestFocus(true);                    nextTemp = newEndPosition;                    strAll = fileChoose.tp1.getText();////////////////////////////////                    fileChoose.tp1.select(nextTemp, strAll.length());/////////////////////////////                    nextStr = fileChoose.tp1.getSelectedText();                    newStartPosition = nextStr.indexOf(searchTxt.getText()) + nextTemp;                    newEndPosition = newStartPosition + searchTxt.getText().length();                    fileChoose.tp1.select(newStartPosition, newEndPosition);                    fileChoose.tp1.replaceSelection(replaceTxt.getText());                }else if(fileChoose.focus == 2){                    fileChoose.tp2.requestFocus(true);                    nextTemp = newEndPosition;                    strAll = fileChoose.tp2.getText();                    fileChoose.tp2.select(nextTemp,strAll.length());                    nextStr = fileChoose.tp2.getSelectedText();                    newStartPosition = nextStr.indexOf(searchTxt.getText()) + nextTemp;                    newEndPosition =newStartPosition + searchTxt.getText().length();                    fileChoose.tp2.select(newStartPosition, newEndPosition);                    fileChoose.tp2.replaceSelection(replaceTxt.getText());                }

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