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我無法理解，因爲這段代碼讀取的文件太多次了。相同的代碼，帶有特殊字符的CSV作爲分隔符，效果很好......但帶有CSV;因爲分隔符讀取同一個文件的次數太多了。BufferedReader讀取次數太多
這裏COSE：
public static ArrayList<Asset> retriveCIInstances(File sap_csv_source, String parseChar) throws IOException {
System.out.println("PARSING WITH THE CHAR: " + parseChar);
ArrayList<Asset> res = new ArrayList<Asset>();
FileInputStream fstream = new FileInputStream(sap_csv_source);
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine;
while ((strLine = br.readLine()) != null) {
System.out.println("LINE CSV: " + strLine);
String[] raw = strLine.split(parseChar);
res.add(new Asset(null,raw[1],raw[0],raw[8], null,null));
}
in.close();
fstream.close();
return res;
}
和這兩個文件的內容有： （不工作）
ASSET_TAG;SAP Purchase Order number;SAP Purchase Order position number;Asset Type;Asset Category;Asset description;Manufacturer;Model;Serial Number;Location ID;Delivery Note number;Delivery note date;EOF B1CSSW01SN78JJNYU76U;4500136741;20;Switch;Network;;Cisco;WS-C2960-24LT-L;SN78JJNYU76U;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF B1CSSW01SNRU7687JUIUJ;4500136741;20;Switch;Network;;Cisco;WS-C2960-24LT-L;SNRU7687JUIUJ;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF B1CSSW01SNFGH6765Y66;4500136741;20;Switch;Network;;Cisco;WS-C2960-24LT-L;SNFGH6765Y66;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF B1CSSW01SN3435REG45Y;4500136741;20;Switch;Network;;Cisco;WS-C2960-24LT-L;SN3435REG45Y;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF
或 （作品）
ASSET_TAG¤SAP Purchase Order number¤SAP Purchase Order position number¤Asset Type¤Asset Category¤Asset description¤Manufacturer¤Model¤Serial Number¤Location ID¤Delivery Note number¤Delivery note date¤EOF B1HPDT06SN345TREG5Y¤4500117819¤10¤Desktop¤Workstation¤¤HP¤8200 Elite SFF Standard¤SN345TREG5Y¤X-RM-0047_04¤TEST_HW00_11FEB14|17|4500117819-10¤11/02/2014¤EOF B1HPDT06SN56654GHTD¤4500117819¤10¤Desktop¤Workstation¤¤HP¤8200 Elite SFF Standard¤SN56654GHTD¤X-RM-0047_04¤TEST_HW00_11FEB14|17|4500117819-10¤11/02/2014¤EOF B1HPDT06SNGJ987IKJJH¤4500117819¤10¤Desktop¤Workstation¤¤HP¤8200 Elite SFF Standard¤SNGJ987IKJJH¤X-RM-0047_04¤TEST_HW00_11FEB14|17|4500117819-10¤11/02/2014¤EOF B1HPDT06SN65765HT56¤4500117819¤10¤Desktop¤Workstation¤¤HP¤8200 Elite SFF Standard¤SN65765HT56¤X-RM-0047_04¤TEST_HW00_11FEB14|17|4500117819-10¤11/02/2014¤EOF
而輸出是：
LINE CSV: ASSET_TAG;SAP Purchase Order number;SAP Purchase Order position ;Asset Type;Asset Category;Asset description;Manufacturer;Model;Serial Num cation ID;Delivery Note number;Delivery note date;EOF LINE CSV: B1CSSW01SN78JJNYU76U;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN78JJNYU76U;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SNRU7687JUIUJ;4500136741;20;Switch;Network;;Cisco;WS-C29 T-L;SNRU7687JUIUJ;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;E LINE CSV: B1CSSW01SNFGH6765Y66;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SNFGH6765Y66;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SN3435REG45Y;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN3435REG45Y;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: ASSET_TAG;SAP Purchase Order number;SAP Purchase Order position ;Asset Type;Asset Category;Asset description;Manufacturer;Model;Serial Num cation ID;Delivery Note number;Delivery note date;EOF LINE CSV: B1CSSW01SN78JJNYU76U;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN78JJNYU76U;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SNRU7687JUIUJ;4500136741;20;Switch;Network;;Cisco;WS-C29 T-L;SNRU7687JUIUJ;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;E LINE CSV: B1CSSW01SNFGH6765Y66;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SNFGH6765Y66;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SN3435REG45Y;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN3435REG45Y;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: ASSET_TAG;SAP Purchase Order number;SAP Purchase Order position ;Asset Type;Asset Category;Asset description;Manufacturer;Model;Serial Num cation ID;Delivery Note number;Delivery note date;EOF LINE CSV: B1CSSW01SN78JJNYU76U;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN78JJNYU76U;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SNRU7687JUIUJ;4500136741;20;Switch;Network;;Cisco;WS-C29 T-L;SNRU7687JUIUJ;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;E LINE CSV: B1CSSW01SNFGH6765Y66;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SNFGH6765Y66;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SN3435REG45Y;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN3435REG45Y;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: ASSET_TAG;SAP Purchase Order number;SAP Purchase Order position ;Asset Type;Asset Category;Asset description;Manufacturer;Model;Serial Num cation ID;Delivery Note number;Delivery note date;EOF LINE CSV: B1CSSW01SN78JJNYU76U;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN78JJNYU76U;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SNRU7687JUIUJ;4500136741;20;Switch;Network;;Cisco;WS-C29 T-L;SNRU7687JUIUJ;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;E LINE CSV: B1CSSW01SNFGH6765Y66;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SNFGH6765Y66;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF LINE CSV: B1CSSW01SN3435REG45Y;4500136741;20;Switch;Network;;Cisco;WS-C296 -L;SN3435REG45Y;X-MAG-VIRTUA;TEST11FEB2014|17|4500136741-20;11/02/2014;EOF
對於四行，它打印了很多行...我不明白。
有什麼想法？
在此先感謝
顯示你的所有代碼。特別是，你要返回'List';是打印內容的來電者？另外，使用'try-with-resources'比手動關閉流更好，但即使您需要手動關閉它們，調用'br.close（）'也會導致它所構建的所有流成爲關閉。 –
chrylis
我試過你的代碼，它的工作原理。我改變了唯一的事情就是註釋掉'res.add（new Asset（null，raw [1]，raw [0]，raw [8]，null，null））;'因爲我不知道資產是什麼上課是。那裏必須發生一些事情。 – StephaneM
問題出在返回之前...... System.out會打印完整的文件（逐行），您可以看到太多次（請參見打印X次的文件頭）。 – sickk