KSOAP2 OutOfMemory传递大量数据

Question

http://pastebin.com/ntp3hi7j

使用上面的代码我可以下载一些数据，比如'Limit = 5/10'，但是当我尝试下载'Limit = 50'时，它会给我以下错误：

> 10-02 06:44:28.075: E/AndroidRuntime(27598): FATAL EXCEPTION:
> pool-1-thread-1 10-02 06:44:28.075: E/AndroidRuntime(27598):
> java.lang.OutOfMemoryError 10-02 06:44:28.075:
> E/AndroidRuntime(27598):  at
> java.lang.AbstractStringBuilder.enlargeBuffer(AbstractStringBuilder.java:94)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> java.lang.AbstractStringBuilder.append0(AbstractStringBuilder.java:124)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> java.lang.StringBuilder.append(StringBuilder.java:271) 10-02
> 06:44:28.075: E/AndroidRuntime(27598):    at
> org.kxml2.io.KXmlParser.readValue(KXmlParser.java:1338) 10-02
> 06:44:28.075: E/AndroidRuntime(27598):    at
> org.kxml2.io.KXmlParser.next(KXmlParser.java:390) 10-02 06:44:28.075:
> E/AndroidRuntime(27598):  at
> org.kxml2.io.KXmlParser.next(KXmlParser.java:310) 10-02 06:44:28.075:
> E/AndroidRuntime(27598):  at
> org.kxml2.io.KXmlParser.nextText(KXmlParser.java:2056) 10-02
> 06:44:28.075: E/AndroidRuntime(27598):    at
> org.ksoap2.serialization.DM.readInstance(DM.java:35) 10-02
> 06:44:28.075: E/AndroidRuntime(27598):    at
> org.ksoap2.serialization.SoapSerializationEnvelope.readInstance(SoapSerializationEnvelope.java:428)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> org.ksoap2.serialization.SoapSerializationEnvelope.read(SoapSerializationEnvelope.java:387)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> org.ksoap2.serialization.SoapSerializationEnvelope.readUnknown(SoapSerializationEnvelope.java:273)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> org.ksoap2.serialization.SoapSerializationEnvelope.read(SoapSerializationEnvelope.java:389)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> org.ksoap2.serialization.SoapSerializationEnvelope.parseBody(SoapSerializationEnvelope.java:151)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> org.ksoap2.SoapEnvelope.parse(SoapEnvelope.java:140) 10-02
> 06:44:28.075: E/AndroidRuntime(27598):    at
> org.ksoap2.transport.Transport.parseResponse(Transport.java:118) 10-02
> 06:44:28.075: E/AndroidRuntime(27598):    at
> org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:253)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:116)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:111)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> com.example.inforlider.SyncActivity$4.run(SyncActivity.java:189) 10-02
> 06:44:28.075: E/AndroidRuntime(27598):    at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
> 10-02 06:44:28.075: E/AndroidRuntime(27598):  at
> java.lang.Thread.run(Thread.java:841)

可能其中一个问题可能是由于字段“Image”，因为它是一个BLOB并返回一个非常大的字符串？

我该怎么办？感谢。

Answer 1

获取并将soap xml保存到手机存储空间，然后解析它。当xml存储在内存中时，不应该解析它。

你可以参考：How to download XML file from server and save it in SD card?

Answer 2

我通过不包括字段“Image”解决了这个问题，因为它是函数中的BLOB（大数据）。之前，我创建了另一个函数，只读取“Image”字段。