一个查找替换文件中字符串的简单工具

  代码如下，主要的调用方法是searchReplace,

private void btnSure_Click(object sender, System.EventArgs e)
        {
            try
            {
                string folderPath = txt_folder.Text;
                DirectoryInfo theFolder = new DirectoryInfo(folderPath);//目录名称
                string str1=txtString1.Text;//不包含字符串;
                string str2=txtString2.Text;//要替换的字符串;
                string str3=txtString3.Text;//替换成字符串;

                if (theFolder.Exists)
                {
                    searchReplace(theFolder.FullName,str1,str2,str3);
                    
                }
            MessageBox.Show("处理成功!");    
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

void searchReplace(string strFolder,string str1,string str2,string str3)
        {
            DirectoryInfo theFolder = new DirectoryInfo(strFolder);//根目录名称
            FileInfo[] fis = theFolder.GetFiles();//找到该目录下所有文件
            foreach (FileInfo fi in fis) //循环
            {      //begin for
                bool blDo=true;
                StringBuilder sb = new StringBuilder();
                StreamReader sr =new StreamReader(fi.FullName,Encoding.GetEncoding("GB2312"));
            
                string s = "";
                while ((s = sr.ReadLine()) != null) 
                {
                    if(s.IndexOf(str1)!=-1)
                    {
                        blDo=false;        //找到有str1字符的文件了,        
                    }
                    
                    int intPos=s.IndexOf(str2);    
                    if(intPos!=-1)
                    {
                        s=s.Replace(str2,str3);    //替换                                    
                    }
                sb.Append(s+"\r\n");//将替换后的所有写入到StringBuilder中.
                    
                    
                }//end while            
                sr.Close();
                if(blDo)
                {
//                    MessageBox.Show(sb.ToString());
                    StreamWriter sw = new StreamWriter(fi.FullName,false,Encoding.GetEncoding("GB18030"));
                    sw.Write(sb);//如果是要替换的文件,将StringBuilder回写到文件中。
                    sw.Close();
                }

            }//end for
        //递归调用
            foreach(DirectoryInfo nextFolder in theFolder.GetDirectories())
            {
                searchReplace(nextFolder.FullName,str1,str2,str3);
            }

 

源代码工程:https://files.cnblogs.com/l_dragon/Solution1.rar

 

posted on 2004-12-28 16:59 生如夏花之灿烂 阅读(1227) 评论(2)  编辑  收藏 网摘 所属分类: c# and .net