java实现读取txt文件并以在每行以空格取数据

package test4;

import java.io.bufferedreader;

import java.io.filereader;

import java.io.ioexception;

public class explacesql {

     public static void main(string[] args) {

          string filepath = explacesql. class .getresource( "" ).getpath()+ "aaa. txt " ; // 文件路径

          read(filepath);

     }

     /**

      * 读取内容

      */

     public static string read(string filepath){

         bufferedreader br = null ;

         string line = null ;

         //stringbuffer buf = new stringbuffer();

         try {

             //根据文件路径创建缓冲输入流

             br = new bufferedreader( new filereader(filepath)); //filepath中是aaa.txt文件

             string str = "" ;

             //循环读取文件的每一行，对需要修改的行进行修改，放入缓冲对象中

              while ((line = br.readline()) != null ) {

                  //设置正则将多余空格都转为一个空格

                  str=line+ "\r\n" ;

                  string[] dictionary = str.split( "\\s{2,}|\t" );

                  for ( int i= 0 ;i<dictionary.length;i++){

                     str = "insert into tablename values(" + dictionary[ 0 ]+ ",'" +dictionary[ 1 ]+ "'," +dictionary[ 2 ]+ "')" ;

                  }

                  system.out.println(str);

              }

         } catch (exception e) {

             e.printstacktrace();

         } finally {

        if (br != null ) { // 关闭流

         try {

          br.close();

         } catch (ioexception e) {

           br = null ;

           }

           }

         }

         return null ;

     }

}

package help;

import java.io.bufferedreader;

import java.io.bufferedwriter;

import java.io.file;

import java.io.fileinputstream;

import java.io.fileoutputstream;

import java.io.inputstreamreader;

import java.io.outputstreamwriter;

import java.util.hashmap;

import java.util.map;

public class txtparseutils {

  private static final integer one = 1 ;

  public static void main(string[] args) {

   map<string, integer> map = new hashmap<string, integer>();

   /* 读取数据 */

   try {

    bufferedreader br = new bufferedreader(new inputstreamreader(new fileinputstream(new file("d:/报销.txt")),

                    "utf-8"));

    string linetxt = null;

    while ((linetxt = br.readline()) != null) {

     string[] names = linetxt.split(",");

     for (string name : names) {

      if (map.keyset().contains(name)) {

       map.put(name, (map.get(name) + one));

      } else {

       map.put(name, one);

      }

     }

    }

    br.close();

   } catch (exception e) {

    system.err.println("read errors :" + e);

   }

   /* 输出数据 */

   try {

    bufferedwriter bw = new bufferedwriter( new outputstreamwriter( new fileoutputstream( new file( "d:/结果.txt" )),

                    "utf-8" ));

    for (string name : map.keyset()) {

     bw.write(name + " " + map.get(name));

     bw.newline();

    }

    bw.close();

   } catch (exception e) {

    system.err.println( "write errors :" + e);

   }

  }

}