将Java代码更改为C ++ Qt编程 [英] Change Java code to C++ Qt programming

问题描述

Hi
我编写了一个java类，现在我需要将它改为C ++代码，但我不是C ++的专家。任何人都可以为我将代码更改为C ++吗？

应用程序：Log Analysis。开发一个用于分析日志文件的新工具。用于解析日志文件的给定代码（从日志文件中提取字段）。

Hi I coded a java class, now I need to change it to C++ code, but I am not expert in C++. Can any body change the code to C++ for me?
Application: Log Analysis.Developing a new tool for analyising the log files.The given code for parse the log file(Extract the fields from the log file).

import java.util.regex.*;
public class stringRS {
    public static void main(String[] args){
        String line = "[03/Dec/2013:10:53:59 +0000] - [32002 10.102.4.254 195.229.241.182 Up24RwpmBAwAAA1LWJsAAAAR GET /content/dam/original.jpg HTTP/1.1] __utmc=94539802; dtCookie=EFD9D09B6A2E1; dtPC=load_; Carte::Kertdomain=6701c1320dd99722; UserData=Username%3ALSHARMA%3AHomepageg%3A0; UserID=1375493%de%3Aae; USER_DATA=rma%40landmain%3A13860608699722; MODE=FONTIS; __utma=945326.5609.190; __utmz=94ic|utmcomain.com%2F,; __ktv=28e8-6c4-be3-ce54137d9e48271; WT_FPC=id=2.50480.30226245:lv=1386047044279:ss=1386046439530; _opt_vi_3FNG8DZU=42880957-D2F1-4DC5-AF16-FEF88891D24E; __hstc=145721067.750d315a49c64268192826b3911a4e5a.1351772962050.1381151113005.1381297633204.66; hsfirstvisit=http%3A%2F%2Fwww.domain.com%2F|http%3A%2F%2Fwww.google.co.in%2Furl%3Fsa%3Dt%26rct%3Dj%26q%3Ddomain.com%26source%3Dweb%26cd%3D1%26ved%3D0CB0QFjAA%26url%3Dhttp%3A%2F%2Fwww.domain.com%2F%26ei%3DDmuSULW3AcTLhAfJ24CoDA%26usg%3DAFQjCNGvPmmyn8Bk67OUv-HwjVU4Ff3q1w|1351772962000; hubspotutk=750d315a49c64268192826b3911a4e5a; __ptca=145721067.jQ7lN5U3C4eN.1351758562.1381136713.1381283233.66; __ptv_62vY4e=jQ7lN5U3C4eN; __pti_62vY4e=jQ7lN5U3C4eN; __ptcz=145721067.1351758562.1.0.ptmcsr=google|ptmcmd=organic|ptmccn=(organic)|ptmctr=domain.com; RM=Lsharma%3Ac163b6097f90d2869e537f95900e1c464daa8fb9; wcid=Up2cRApmBAwAAFOiVhcAAAAH%3Af32e5e5f5b593175bfc71af082ab26e4055efeb6; __utmb=94539802.71.9.1386067462709; edge_auth=ip%3D195.229.241.182~expires%3D1386069280~access%3D%2Fapps%2F%2A%21%2Fbin%2F%2A%21%2Fcontent%2F%2A%21%2Fetc%2F%2A%21%2Fhome%2F%2A%21%2Flibs%2F%2A%21%2Freport%2F%2A%21%2Fsection%2F%2A%21%2Fdomain%2F%2A~md5%3D5b47f34172392487dcd44c1d837e2e54; has_js=1; SECTION=%2Fcontent%2Fsection%2Finspiration-design%2Fstreet-shots.html; JSESSIONID=b9377099-7708-45ae-b6e7-c575ffe82187; WT_FPC=id=2.50.27.157-3067016480.30226245:lv=1386053618209:ss=1386053618209; USER_GROUP=LSharma%3Afalse; NSC_wtfswfs_xfcgbsn40-41=ffffffff096e1a1d45525d5f4f58455e445a4a423660 200 \"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)\" \"www.domain.com\" - 24516 http://www.domain.com/content/report/Street_Shots/Youth/Global_round_up/2013/01_Jan/mens_youth_stylingglobalround-up1.html";

        String pattern = "\\[([\\w:/]+\\s[+\\-]\\d{4})\\] (\\S) \\[(\\w+) ([\\d.]+) ([\\d.]+) (\\w+) (\\w+.*)\\] (\\w.*?\\d{3}) ([\\d.]+) \"([^\"]*)\" \"([^\"]*)\" (\\S) (\\w+) (.*)";
        Pattern r = Pattern.compile(pattern);

        // Now create matcher object.
        Matcher m = r.matcher(line);
        if (m.find( )) {
            System.out.println("String: " + m.group(0) );
            System.out.println("Date&Time: " + m.group(1) );
            System.out.println("User: " + m.group(2) );
            System.out.println("Time taken: " + m.group(3) );
            System.out.println("Source IP: " + m.group(4) );
            System.out.println("Client IP: " + m.group(5) );
            System.out.println("Unique ID: " + m.group(6) );
            System.out.println("Reguest: " + m.group(7) );
            System.out.println("Cookie: " + m.group(8) );
            System.out.println("Request Type: " + m.group(9) );
            System.out.println("Browser: " + m.group(10) );
            System.out.println("Domain: " + m.group(11) );
            System.out.println("Remote logname: " + m.group(12) );
            System.out.println("bytes sent: " + m.group(13) );
            System.out.println("Referrer: " + m.group(14) );
        } else {
            System.out.println("NO MATCH");
        }
    }
}

推荐答案

嗯，程序实际上非常简单。您只需验证 C ++正则表达式 [ ^ ]产生与 Java 包相同的结果（或修改模式匹配）。您可能只需要使用 C ++正则表达式的教程。 Google是您的朋友 [ ^ ]。

Well, the program is actually pretty simple. You have only to verify that C++ regex[^] produces the same results the Java package does (or modify the pattern for proper matching). Probably all you need is a tutorial on using the C++ regex. Google is your friend[^].

正如CPallini已经说过的那样;非常简单;-)

As CPallini already sayed; its pretty simple ;-)

#include <string>
#include <iostream>
#include <regex>

using namespace std;

int main(char *args, int argc)
{
  string line("[03/Dec/2013:10:53:59 +0000] - [32002 10.102.4.254 195.229.241.182 ...");
  regex pattern("\\[([\\w:/]+\\s[+\\-]\\d{4})\\] (\\S) \\[(\\w+) ([\\d.]+) ([\\d.]+) (\\w+) (\\w+.*)\\] (\\w.*?\\d{3}) ([\\d.]+) \"([^\"]*)\" \"([^\"]*)\" (\\S) (\\w+) (.*)");

  smatch sm;    
  regex_match (line,sm, pattern);
  cout << "string object with " << sm.size() << " matches" << endl << endl;

  cout << "the matches were: ";
  for (unsigned i=0; i<sm.size(); ++i) {
     cout << "[" << sm[i] << "] " << endl;
  }

}

你要检查模式是否有正确的c ++语法;我不会看那个。

Its on you to check if the patterns have right syntax for c++; I will not look at that.

这篇关于将Java代码更改为C ++ Qt编程的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！