Question

我使用以下代码写入项目根文件夹中的文件..

public class Service2 : IService2
{

    public Boolean SaveInfo(String firstName, String lastName, DateTime dateOfBirth,
    String email, String streetAddress, String suburb, String state, int postcode,
    Job job)
    {
        string text = firstName + " " + lastName + " " + dateOfBirth + " " + email + " " + streetAddress + " " + suburb + " " + state + " " + postcode + " " + job;
        String[] people = Regex.Split(text, " ");
        using (System.IO.StreamWriter file = new System.IO.StreamWriter("Person.txt", true))
        {
            foreach (string c in people)
            {
            file.Write(c);
            file.Close();
            return true;
            }
            return false;
        }
    }

基本上它返回一个布尔值，取决于文件是否被写入...我实际上找不到写入文件的内容。它在执行时确实返回true - 我在WCF测试器中运行WCF服务并使用值来调用它以写入文件...但是当我从右侧的Solution explorer打开Person.txt文件时，没有任何东西得到写进去......

所以我的问题是，这是将文本行写入文本文件的最佳方式，如果是这样，我哪里出错？

此致

Answer 1

尝试使用此代码

string text = firstName + " " + lastName + " " + dateOfBirth + " " + email + " " + streetAddress + " " + suburb + " " + state + " " + postcode + " " + job;
        String[] people = text.Split(" ");

if (!File.Exists("Person.txt"))
        {
            // Create a file to write to. 

            File.WriteAllLines(path, people , Encoding.UTF8);
        }
else
 File.AppendAllText("Person.Text", people , Encoding.UTF8);

Answer 2

    public Boolean SaveInfo(String firstName, String lastName, DateTime dateOfBirth,
String email, String streetAddress, String suburb, String state, int postcode)
    {
        string text = firstName + " " + lastName + " " + dateOfBirth + " " + email + " " + streetAddress + " " + suburb + " " + state + " " + postcode + " ";
        String[] people = Regex.Split(text, " ");
        try
        {
            using (System.IO.StreamWriter file = new System.IO.StreamWriter("Person.txt", true))
            {
                foreach (string c in people)
                {
                    file.Write(c);
                }
                file.Close();
            }
            return true;
        }
        catch (Exception)
        {

            return  false;
        }

    }

您在数组中的第一个字符串后关闭文件，但是在遍历数组中的每个字符串后必须关闭它。对我而言，这是有效的，但我们可能需要看到你的函数调用

Answer 3

试试这个

public Boolean SaveInfo(String firstName, String lastName, DateTime dateOfBirth,
    String email, String streetAddress, String suburb, String state, int postcode,
    Job job)
    {
     try{
            string text = firstName + "\r\n" + lastName + "\r\n" + dateOfBirth + "\r\n" + email + "\r\n" + streetAddress + "\r\n" + suburb + "\r\n" + state + "\r\n" + postcode + "\r\n" + job;

            using (System.IO.StreamWriter file = new System.IO.StreamWriter("Person.txt"))
           {
               file.WriteLine(text );
               file.Close();
               return true;   
           }
       }
       catch(Exception ex)
       {
           return false;
       }
    }

Answer 4

老式的方式

    using (FileStream fs = File.Create(yourFilePath)) 
    {
        byte[] info = new UTF8Encoding(true).GetBytes(text);
        fs.Write(info, 0, info.Length);
    }

在C＃VS2012中写入文件

4 个答案: