Question

我已经使用此方法将xml文件序列化为SD卡

http://www.anddev.org/write_a_simple_xml_file_in_the_sd_card_using_xmlserializer-t8350.html

它工作正常，但在某些时候它停止工作

问题与大小有关，我的意思是XML文件大小

因为如果我使用较小的文件，它可以正常工作

也许如果我将这个方法与BufferedOutputStream一起使用而不是FileOutputStream将起作用... 但我不知道如何调整代码来使用缓冲区

Ant我的问题是如何为此代码添加缓冲区。

这是我得到的输出日志：

06-04 14:06:09.754: ERROR/Exception(2279): error occurred while creating xml file
06-04 14:06:09.754: ERROR/Exception(2279): java.lang.IndexOutOfBoundsException
06-04 14:06:09.754: ERROR/Exception(2279):     at org.kxml2.io.KXmlParser.getAttributeValue(KXmlParser.java:1303)
06-04 14:06:09.754: ERROR/Exception(2279):     at com.digitalnatura.htmlgenereitor.xml2html.serializartodo(xml2html.java:273)
06-04 14:06:09.754: ERROR/Exception(2279):     at com.digitalnatura.htmlgenereitor.xml2html.onCreate(xml2html.java:44)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.app.ActivityThread.access$2200(ActivityThread.java:119)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.os.Looper.loop(Looper.java:123)
06-04 14:06:09.754: ERROR/Exception(2279):     at android.app.ActivityThread.main(ActivityThread.java:4363)
06-04 14:06:09.754: ERROR/Exception(2279):     at java.lang.reflect.Method.invokeNative(Native Method)
06-04 14:06:09.754: ERROR/Exception(2279):     at java.lang.reflect.Method.invoke(Method.java:521)
06-04 14:06:09.754: ERROR/Exception(2279):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
06-04 14:06:09.754: ERROR/Exception(2279):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
06-04 14:06:09.754: ERROR/Exception(2279):     at dalvik.system.NativeStart.main(Native Method)

Answer 1

根据xmlpull docs，setOutput function将一个Writer类的实例和一个String作为参数进行编码。因此，您也可以使用BufferedWriter，而不是使用BufferedOutputStream。尝试用以下内容替换第47和49行：

47  BufferedWriter fileos = null;
49  fileos = new BufferedWriter(new FileWriter(newxmlfile));

Answer 2

只需替换

行

FileOutputStream fileos = null;
// ...
fileos = new FileOutputStream(newxmlfile);

与

OutputStream fileos = null;
// ...
fileos = new BufferedOutputStream(new FileOutputStream(newxmlfile));

如何为BufferedOutputStream交换FileOutputStream

2 个答案: