如何读取＆QUOT文本文件;资产＆QUOT;目录作为一个字符串？ [英] How to read a text file from "assets" directory as a string?

问题描述

我在我的资产文件夹中的文件......我怎么看它？

I have a file in my assets folder... how do I read it?

现在我想：

      public static String readFileAsString(String filePath)
        throws java.io.IOException{
            StringBuffer fileData = new StringBuffer(1000);
            BufferedReader reader = new BufferedReader(
                    new FileReader(filePath));
            char[] buf = new char[1024];
            int numRead=0;
            while((numRead=reader.read(buf)) != -1){
                String readData = String.valueOf(buf, 0, numRead);
                fileData.append(readData);
                buf = new char[1024];
            }
            reader.close();
            return fileData.toString();
        }

但它蒙上了空指针异常...

But it cast a null pointer exception...

文件名为原产地，它是在文件夹中的资产

the file is called "origin" and it is in folder assets

我试图用它转换：

readFileAsString("file:///android_asset/origin");

和

readFileAsString("asset/origin");``

但都失败了......什么建议？

but both failed... any advice?

推荐答案

您可以通过打开的输入流 AssetsManager 。

You can open an input stream using AssetsManager.

InputStream input = getAssets().open("origin");
Reader reader = new InputStreamReader(input, "UTF-8");

getAssets（）是上下文类的方法。

另外请注意，你不应该重新字符的缓冲区（<$ C C $> BUF =新的char [1024] ，你的周期的最后一行）。

Also note that you shouldn't recreate a buffer of characters (buf = new char[1024], the last line of your cycle).

这篇关于如何读取＆QUOT文本文件;资产＆QUOT;目录作为一个字符串？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！