中科院分词系统NLPIR的JAVA代码（补充2）

在上篇博客基础上，添加以下两个功能：

1. 统计词频功能，并以降序排列
2. 显示运行进度

具体代码如下：

package code;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;


import com.sun.jna.Library;
import com.sun.jna.Native;

public class Nlpir {

    // 定义接口CLibrary，继承自com.sun.jna.Library
    public interface CLibrary extends Library {
        // 定义并初始化接口的静态变量
        CLibrary Instance = (CLibrary) Native.loadLibrary(
                "D:\\LDA\\java\\NLPIR\\lib\\win64\\NLPIR", CLibrary.class);

        public int NLPIR_Init(String sDataPath, int encoding,
                String sLicenceCode);               
        public String NLPIR_ParagraphProcess(String sSrc, int bPOSTagged); //对字符串内容进行分词
        public String NLPIR_GetKeyWords(String sLine, int nMaxKeyLimit,
                boolean bWeightOut); //从字符串中提取关键词
        public String NLPIR_GetFileKeyWords(String sLine, int nMaxKeyLimit,
                boolean bWeightOut); //从txt文件中提取关键词，本代码未用到
        public int NLPIR_AddUserWord(String sWord);
        public String NLPIR_GetLastErrorMsg();
        public void NLPIR_Exit();
    }

    public static String transString(String aidString, String ori_encoding,
            String new_encoding) {
        try {
            return new String(aidString.getBytes(ori_encoding), new_encoding);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) throws Exception {

        String path2 = "D:\\LDA\\java\\stopword.txt";
        Set<String> set = getStopWord(path2); //调用下面getStopWord方法       
        Map<String, Integer> map = new HashMap<String,Integer>();
        /*初始化*/
        String argu = "D:\\LDA\\java\\NLPIR"; //Data的上一级目录
        String system_charset = "UTF-8";
        int charset_type = 1;       
        int init_flag = CLibrary.Instance.NLPIR_Init(argu, charset_type, "0");
        String nativeBytes = null;
        if (0 == init_flag) {
            nativeBytes = CLibrary.Instance.NLPIR_GetLastErrorMsg();
            System.err.println("初始化失败！fail reason is "+nativeBytes);
            return;
        }
        /*添加用户词典功能*/
        String userFilePath = "D:\\LDA\\java\\userdic.txt";
        File userFile = new File(userFilePath);
        InputStreamReader readerUser = new InputStreamReader(new FileInputStream(userFile), "gbk");
        BufferedReader brUser = new BufferedReader(readerUser);
        String lineUser="";
        List<String> list = new ArrayList<String>();
        while((lineUser = brUser.readLine()) != null){
            String[] strings = lineUser.split("\n");
            for(int i = 0; i < strings.length; i++){
                list.add(strings[i]);
            }
        }
        brUser.close();

        //实现批量读取多个要分词的TXT文件
        String sInput = "";
        String path = "D:\\LDA\\java\\source\\test";
        String outName = "";
        File file = new File(path);
        File[] files = file.listFiles();
        String out = "";
        String splitString = "";
        String splitStringNo = "";
        Arrays.sort(files);
        double jindu = 1;
//      System.out.println(files.length);查看多少个要处理的txt
        for(int i = 0; i < files.length; i++){
            if (files[i].isFile()){
                out = "";
                splitString= "";
                splitStringNo = "";
                outName = files[i].getName();
                InputStreamReader reader = new InputStreamReader(new FileInputStream(files[i]), "gbk");
                BufferedReader br = new BufferedReader(reader);
                String line="";
                sInput = "";
                line = br.readLine();
                while (line != null){

                    sInput += line;
                    line = br.readLine();
                }
                br.close();

                /*停用词*/
                Iterator<String> it = set.iterator();
                int count = 0;
                while(it.hasNext()){
                    String string = it.next();
                    if(sInput.contains(string)){
                        sInput = sInput.replace(string, "");
                    }
                }

            try {
                /*分词后提取名词（保留词性标记或不保留）*/
                nativeBytes = CLibrary.Instance.NLPIR_ParagraphProcess(sInput, 1);
                String[] stringSplit = nativeBytes.split(" ");
                for(int m=0; m < stringSplit.length; m++){
                    if(stringSplit[m].contains("n")){
                        splitString += stringSplit[m];
                        int k = stringSplit[m].indexOf("/");
                        splitStringNo += stringSplit[m].substring(0, k);
                        splitStringNo += "  ";
//                      splitString += "  ";
                    }
                }
                countWord(splitStringNo, map);

                /*保留词性标注*/
//              File fpOne = new File("D:\\LDA\\java\\result\\split\\" + outName);
//              PrintWriter pfpOne = new PrintWriter(fpOne);
//              pfpOne.write(splitString);
//              pfpOne.close();


                File fptwo = new File("D:\\LDA\\java\\result\\testno\\" + outName);
                PrintWriter pfpTwo = new PrintWriter(fptwo);
                pfpTwo.write(splitStringNo);
                pfpTwo.close();

//              out += nativeBytes; //对应TXT的内容，未添加用户词典的分词结果
//              out += "\r\n";

                for(int k = 0; k < list.size(); k++){
                    CLibrary.Instance.NLPIR_AddUserWord(list.get(k)); 
                }
                /*屏蔽，使result结果中只出现一种结果，否则两者都出现在TXT中*/

                out += nativeBytes; //对应TXT的内容，增加用户词典后分词结果
                out += "\r\n";                              

                int nCountKey = 0;
                String nativeByte = CLibrary.Instance.NLPIR_GetKeyWords(sInput, 10,false);
                File fp1 = new File("D:\\LDA\\java\\keyword\\test\\" + outName);
                PrintWriter pfp1 = new PrintWriter(fp1);
                pfp1.write(nativeByte); //对应TXT内容，关键词
                pfp1.close();

                //分词结果(添加和未添加用户词典的分词结果)
                File fp = new File("D:\\LDA\\java\\result\\test\\" + outName);
                PrintWriter pfp = new PrintWriter(fp);
                pfp.write(out);
                pfp.close();

            } catch (Exception ex) {
                // TODO Auto-generated catch block
                ex.printStackTrace();
            }
            }
            double jinDuOne = jindu/files.length;
            jindu++;
            System.out.println(getFourDecimal(jinDuOne)*100 + "%");
        }
        printTxt(map);
        CLibrary.Instance.NLPIR_Exit();
        System.out.println("运行完成！！！");

    }

    /*去掉停用词方法*/
    public static Set<String> getStopWord(String path) throws Exception{
        Set<String> set = new HashSet<String>();
        File file = new File(path);
        InputStreamReader reader = new InputStreamReader(new FileInputStream(file), "gbk");
        BufferedReader br = new BufferedReader(reader);
        String line = "";
        line = br.readLine();
        while(line != null){
            if(!line.trim().isEmpty()){
                set.add(line);
            }
            line = br.readLine();
        }
        br.close();
        return set;
    }

     public static void countWord(String ss, Map<String, Integer> map){
            String[] string = ss.split("  ");
            for(int i=0; i < string.length; i++){
                if(map.containsKey(string[i])){
                    int stringCount = map.get(string[i]);
                    stringCount += 1;
                    map.put(string[i], stringCount);
                }else{
                    map.put(string[i], 1);
                }
            }

        }

     public static void printTxt(Map<String, Integer> map) throws Exception{
            String string = "";
            List<Map.Entry<String, Integer>> list = new ArrayList<Map.Entry<String,Integer>>(map.entrySet());
            Collections.sort(list, new Comparator<Map.Entry<String, Integer>>(){

                @Override
                public int compare(Entry<String, Integer> o1, Entry<String, Integer> o2) {
                    return o2.getValue().compareTo(o1.getValue());
                }

            });

            for(Map.Entry<String, Integer> mapping : list){
                String stringOne = mapping.getKey() + "---" + mapping.getValue();
                string += stringOne;
                string += "\r\n";
            }

//          for(Map.Entry<String, Integer> entry : map.entrySet()){
//              String stringOne = entry.getKey() + "---" + entry.getValue();
//              string += stringOne;
//              string += "\r\n";
//          }
            File fptwo = new File("D:\\LDA\\java\\result\\countword\\" + "count");
            PrintWriter pfpTwo = new PrintWriter(fptwo);
            pfpTwo.write(string);
            pfpTwo.close();
        }

     //保留4位有效数字
     public static double getFourDecimal(double num){
         DecimalFormat dFormat = new DecimalFormat("#.0000");
         String string = dFormat.format(num);
         Double temp = Double.valueOf(string);
         return temp;
     }


}