1 /**
 2      * 
 3      * @param fileName 檔案全路徑
 4      * @param pageNo  頁數
 5      * @param pageSize  每頁的條數
 6      * @return
 7      */
 8     List<String> getLines(String fileName,int pageNo,int pageSize){
 9         File file = new File(fileName);
10         BufferedReader reader = null;
11
 
         List<String> lines = new ArrayList<String>();
12         try {
13             int startRow = (pageNo - 1) * pageSize + 1;  //計算開始行數
14             int endRow = pageNo * pageSize; //計算結束行數
15             reader = new BufferedReader(new FileReader(file));
16             LineNumberReader lineNumberReader = new
 
 LineNumberReader(new FileReader(file));
17             lineNumberReader.skip(Long.MAX_VALUE);
18             int lineNumber = lineNumberReader.getLineNumber() + 1;   //獲取檔案裡面的總行數
19             if(endRow >= lineNumber){
20                 endRow = lineNumber;
21             }
22             String tempString = "";
 
23             int line = 0;
24             // 一次讀入一行，直到讀入null為檔案結束
25             while (tempString != null) {
26                 line++;
27                 tempString = reader.readLine();
28                  if(line >= startRow && line <= endRow) { 
29                      lines.add(tempString);
30                  }
31             }
32             reader.close();
33             return lines;
34         } catch (IOException e) {
35             e.printStackTrace();
36         } finally {
37             if (reader != null) {
38                 try {
39                     reader.close();
40                 } catch (IOException e) {
41                     e.printStackTrace();
42                 }
43             }
44         }
45         return null;
46     }