无法从资产中读取整个文件

时间：2013-11-30 15:40:41

标签： java android

我正在尝试从我的资源文件夹中读取一个plist文件，但该文件只读取到第153行 - 而不是结尾。任何人都可以帮助我，告诉我为什么会这样吗？

如果我记录这样做Log.v("ReadFromFile("filename.plist",this);我的内容是第153行。我错过了什么，为什么我没有得到整个文件的内容？ 这是我的代码：

public String ReadFromfile(String fileName, Context context) {
        InputStream input;
        String text = null;
        try {
            input = context.getAssets().open(fileName);

            int size = input.available();
            byte[] buffer = new byte[size];
            input.read(buffer);
            input.close();

            // byte buffer into a string
            text = new String(buffer);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return text;
    }

我正在尝试阅读的文件内容如下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>Number</key>
        <integer>0</integer>
        <key>RecitorLabel</key>
        <string>abdul-rahman-al-sudais</string>
        <key>Title</key>
        <string>A­bdul Rahman Al ­Soudais عبد الرحمن السديس</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>Number</key>
        <integer>1</integer>
        <key>Title</key>
        <string>Surat Al-Fātiĥah (The Opener) - سورة الفاتحة</string>
    </dict>
    </dict>
</array>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>Number</key>
        <integer>2</integer>
        <key>Title</key>
        <string>Surat Al-Baqarah (The Cow) - سورة البقرة</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>Number</key>
        <integer>3</integer>
        <key>Title</key>
        <string>Surat 'Āli `Imrān (Family of Imran) - سورة آل عمران</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>4</integer>
        <key>Title</key>
        <string>Surat An-Nisā' (The Women) - سورة النساء</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>5</integer>
        <key>Title</key>
        <string>Surat Al-Mā'idah (The Table Spread) - سورة المائدة </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>6</integer>
        <key>Title</key>
        <string>Surat Al-'An`ām (The Cattle) - سورة الأنعام </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>7</integer>
        <key>Title</key>
        <string>Surat Al-'A`rāf (The Heights) - سورة الأعراف  </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>8</integer>
        <key>Title</key>
        <string>Surat Al-'Anfāl (The Spoils of War) - سورة الأنفال</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>9</integer>
        <key>Title</key>
        <string>Surat At-Tawbah (The Repentance) - سورة التوبة </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>10</integer>
        <key>Title</key>
        <string>Surat Yūnus (Jonah) - سورة يونس </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>11</integer>
        <key>Title</key>
        <string>Surat Hūd (Hud) - سورة هود</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>12</integer>
        <key>Title</key>
        <string>Surat Yūsuf (Joseph) - سورة يوسف</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>13</integer>
        <key>Title</key>
        <string>Surat Ar-Ra`d (The Thunder) - سورة الرعد    </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>14</integer>
        <key>Title</key>
        <string>Surat 'Ibrāhīm (Abrahim) - سورة ابراهيم</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>15</integer>
        <key>Title</key>
        <string>Surat Al-Hijr (The Rocky Tract) - سورة الحجر</string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>16</integer>
        <key>Title</key>
        <string>Surat An-Naĥl (The Bee) - سورة النحل    </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>17</integer>
        <key>Title</key>
        <string>Surat Al-'Isrā' (The Night Journey) - سورة الإسراء   </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>18</integer>
        <key>Title</key>
        <string>Surat Al-Kahf (The Cave) - سورة الكهف   </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>19</integer>
        <key>Title</key>
        <string>Surat Maryam (Mary) - سورة مريم   </string>
    </dict>
    <dict>
        <key>Link</key>
        <string>http://yaislam.com/quran/mp3/</string>
        <key>New item</key>
        <string></string>
        <key>Number</key>
        <integer>20</integer>
        <key>Title</key>
        <string>Surat Ţāhā (Ta-Ha) - سورة طه   </string>
    </dict>
   </array>
</plist>

2 个答案:

答案 0 :(得分：0)

除了使用Log进行测试时可能出现的问题之外，您对available()的行为做出了无效的假设。引用the documentation：

  

特别重要的是要意识到您必须不使用此方法来调整容器大小，并假设您可以读取整个流而无需调整容器大小。

最佳解决方案是将文件移出assets/并移至res/xml/，然后使用getXml()上的Resources将其读入。这将解析速度提高约10倍而不是以其他方式解析它。

如果您确实需要在资产中使用它，或者出于某种原因需要将其作为完整字符串，则需要循环，如Read/convert an InputStream to a String中所述。

答案 1 :(得分：0)

我将您的文件放在名为“text.xml”的资源中，我可以读取字符串中的完整内容： - 

String jsonString = null ;
    try{
    InputStream is = getAssets().open("test.xml");

    int size = is.available();

    byte[] buffer = new byte[size];

    is.read(buffer);

    is.close();

    jsonString = new String(buffer, "UTF-8");
    }
    catch(Exception e){
        e.printStackTrace();
    }
    System.out.println(jsonString);
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