文本替换java实现（批处理）

最新推荐文章于 2022-06-24 14:36:36 发布

yangxueyong

最新推荐文章于 2022-06-24 14:36:36 发布

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分类专栏： JAVA学习笔记文章标签： Java HTML .net Blog F#

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本文介绍了一个Java程序，用于批量将HTML文件中的字符编码从GBK转换为UTF-8。该程序可以递归处理指定目录下的所有HTML文件，并进行编码替换。

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文本替换java实现

批量将html中gbk字符编码替换为UTF8:

import java.io.BufferedReader;   
import java.io.BufferedWriter;   
import java.io.File;   
import java.io.FileFilter;   
import java.io.FileInputStream;   
import java.io.FileOutputStream;   
import java.io.IOException;   
import java.io.InputStreamReader;   
import java.io.OutputStreamWriter;   
import java.io.PrintWriter;   
import java.io.UnsupportedEncodingException;   
  
public class ContextReplace {   
  
    private static String srcStr = "charset=gb2312";   
    private static String desStr = "charset=utf-8";   
    private static String srcDir = "f:\\test";   
  
    private static FileFilter filter = new FileFilter() {   
        public boolean accept(File pathname) {   
            // 只处理：目录 或是 .html文件   
            if (pathname.isDirectory()   
                    || (pathname.isFile() && pathname.getName().endsWith(   
                            ".html"))) {   
                return true;   
            } else {   
                return false;   
            }   
        }   
    };   
  
    public static void readDir(File file) {   
        // 以过滤器作为参数   
        File[] files = file.listFiles(filter);   
        for (File subFile : files) {   
            // 处理目录   
            if (subFile.isDirectory()) {   
                readDir(subFile);   
            }   
            // 处理文件   
            else {   
                System.err.println("源文件：\t" + subFile.getAbsolutePath());   
                System.err.println("---------------------------");   
                try {   
                    replace(subFile.getAbsolutePath(), srcStr, desStr);   
                } catch (UnsupportedEncodingException e) {   
                    e.printStackTrace();   
                } catch (IOException e) {   
                    e.printStackTrace();   
                }   
            }   
        }   
    }   
  
    public static void replace(String infilename, String from, String to)   
            throws IOException, UnsupportedEncodingException {   
        File infile = new File(infilename);   
        BufferedReader in = new BufferedReader(new InputStreamReader(   
                new FileInputStream(infile), "utf-8"));   
        File outfile = new File(infile + ".tmp");   
        PrintWriter out = new PrintWriter(new BufferedWriter(   
                new OutputStreamWriter(new FileOutputStream(outfile), "utf-8")));   
        String reading;   
        while ((reading = in.readLine()) != null) {   
            out.println(reading.replaceAll(from, to));   
        }   
        out.close();   
        in.close();   
        infile.delete();   
        outfile.renameTo(infile);   
    }   
  
    public static void main(String[] args) {   
        File srcFile = new File(srcDir);   
        readDir(srcFile);   
        srcFile = null;   
    }   
  
}

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