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59 lines
1.6 KiB
59 lines
1.6 KiB
import java.io.*;
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public class Editor{
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private String content; //文本文件的内容
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private String filepath; //文本文件的路径
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private String charsetName; //文本文件的字符编码
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public Editor(String filepath,String charsetName){
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this.filepath=filepath;
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this.charsetName=charsetName;
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}
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//把文件中的内容输入到content属性中
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public void load(){
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try{
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InputStream in1=new FileInputStream(filepath);
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InputStreamReader in2=
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new InputStreamReader(in1,charsetName);
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BufferedReader in3=new BufferedReader(in2);
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String data=null;
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content="";
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while((data=in3.readLine())!=null)
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content+=data+"\n";
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in3.close();
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}catch(IOException e){}
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}
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//把content属性的内容输出到文件中
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public void save(){
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try{
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OutputStream out1=new FileOutputStream(filepath);
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OutputStreamWriter out2
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=new OutputStreamWriter(out1,charsetName);
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PrintWriter out3=new PrintWriter(out2,true);
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out3.print(content);
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out3.close();
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}catch(IOException e){}
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}
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//获得文本内容
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public String getContent(){
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return content;
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}
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// 替换content属性中的特定字符串
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public void replace(String oldStr,String newStr){
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content=content.replace(oldStr,newStr);
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}
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public static void main(String args[]){
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Editor editor=new Editor("D:\\mydir\\data.txt","UTF-8");
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editor.load(); //加载data.txt文件
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editor.replace("Hello","Hi"); //替换特定字符串
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editor.save(); //保存文件
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}
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} |