读文件/写文件。

package com.dingheng;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
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.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;  
public class wqqqqqqqqqqq {
    
    private static ArrayList<String> filelist = new ArrayList<String>();  
    private static String CHARSET = "utf-8";
    
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
         
//         int wenjian = 1;
//         while(wenjian<101) {
//             ArrayList<String> filelist = new ArrayList<String>();
//              System.out.println(wenjian);
             
//         refreshFileList("E:\\1111\\333333"+Integer.toString(wenjian)+".txt");
         refreshFileList("F:\\11");
         for(int i = 0; i<filelist.size();i++) {
             long a = System.currentTimeMillis();
             System.out.println(filelist.get(i));
             String text ="";
//             String st = "E:\\3333\\333333"+Integer.toString(wenjian);
//             File file = new File(st);
//             if(!file.exists())  file.mkdirs();
//             if(i==0)      System.out.println(file);
//             String wstr = file+"\\"+Integer.toString(i+1)+".txt";
             String wstr = filelist.get(i).replace(".json", "")+".txt";
             
//             String wstr = +Integer.toString(i)+".txt";
//             String st = filelist.get(i).replace(", newChar);
//             String wstr = st+"\\"+Integer.toString(i)+".txt";
//             File file = new File(st);
             FileOutputStream outfile = new FileOutputStream(wstr);
             OutputStreamWriter osw= new OutputStreamWriter(outfile, "UTF-8");
             BufferedWriter bufout = new BufferedWriter(osw);
             text = run(filelist.get(i));
             bufout.write(text);
             bufout.flush();
             bufout.close();
             long b = System.currentTimeMillis();
             System.out.println("程序运行时间： "+(b-a)+"ms");
//             System.out.println(filelist.get(i));
             
             
         }
         filelist.clear();
         
//         wenjian++;
         
//         }
         
         
    }
    
    public static void refreshFileList(String strPath) {   
        File dir = new File(strPath);   
        File[] files = dir.listFiles();   
          
        if (files == null)   
            return;   
        for (int i = 0; i < files.length; i++) {   
            if (files[i].isDirectory()) {   
                refreshFileList(files[i].getAbsolutePath());   
            } else {   
                String strFileName = files[i].getAbsolutePath().toLowerCase();  
                filelist.add(files[i].getAbsolutePath());                      
            }   
        }   
    }  
    
    public static String getContent(String filename)throws Exception {
        String ss = "";
        BufferedReader br = new BufferedReader(new InputStreamReader( //智思褒贬义xml20180123  智思褒贬义xml20180126_1
                new FileInputStream(filename), "utf-8")); //智思褒贬义xml.txt
        String line="";
        while ((line = br.readLine()) != null) {
           ss += line;
        }
        br.close();
        
        return ss;
    }

    public static String run(String filename) {
        String rtn = "";
        try {
            
            URL url = new URL("http://172.19.34.128:8801/charCorrect");
            
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");//POST
            connection.setDoInput(true);
            connection.setDoOutput(true);
            //connection.setRequestProperty("content-type", "application/x-www-form-urlencoded");
//            connection.setRequestProperty("content-type", "test/xml");
            connection.setRequestProperty("content-type", "application/json");

            
            connection.connect();
               
            String con = "";
            
            con = getContent(filename);
            
            long s1 = System.currentTimeMillis();
            StringBuffer requestXml = new StringBuffer();
            requestXml.append(con);

            PrintWriter writer = new PrintWriter(new OutputStreamWriter(connection.getOutputStream(), CHARSET));
            try {
                writer.print(requestXml.toString());
                writer.flush();
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                writer.close();
            }
            
            if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
                System.out.println("Error: " + connection.getResponseMessage());
            }
            BufferedReader reader = null;
            reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), CHARSET));
            StringBuffer rtnBuffer = new StringBuffer();
            try {
                String temp = reader.readLine();
                while (temp != null) {
                    rtnBuffer.append(temp);
                    temp = reader.readLine();
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {

                reader.close();
            }
            rtn = rtnBuffer.toString();
            
            
            long s2 = System.currentTimeMillis();
            long costtime = s2 - s1;
            
        } catch (Exception e) {
            rtn = "-5001";
        }

        try {
            System.out.println("结果:"+rtn);
            
            
            
        } catch (Exception e) {
            e.printStackTrace();
        }
        
        return rtn;
    }
}