java实现查找替换功能

2019-11-26 09:08:50

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本文实例为大家分享了java实现查找替换功能的具体代码，供大家参考，具体内容如下

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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