读取txt文档并分页

jsp中代码

1. //在action中得到的nowpage
2. Stringnpage=String.valueOf(session.getAttribute("nowpage"));%>
3. <%
4. //读取的文件
5. Fileread=newFile("E:\\x.txt");
7. BufferedReaderbr=newBufferedReader(newInputStreamReader(newFileInputStream(read),"UTF-8"));
8. Stringtemp;
9. //行数
10. intj=0;
11. //当前页
12. intnowpage;
13. //总页数
14. intpages=0;
15. nowpage=Integer.parseInt(npage);
16. while((temp=br.readLine())!=null){
17. j++;
18. pages=j%50==0?j/50:j/50+1;
19. if(j>(nowpage-1)*50&&j<=nowpage*50){//根据当前页控制显示的行数
20. out.println(temp+"<br/>");
21. }
23. }
24. br.close();
25. %>
26. <ahref="page.do?nowpage=1&mark=shou&method=gg">首页</a>
27. <%if(nowpage==1){
28. }else{%>
29. <ahref="page.do?mark=shang&method=gg&nowpage=<%=nowpage%>">上一页</a>
30. <%}%>
31. <%if(nowpage>=pages){
32. }else{%>
33. <ahref="page.do?mark=xia&method=gg&nowpage=<%=nowpage%>">下一页</a>
34. <%}%>
35. <ahref="page.do?mark=mo&method=gg&nowpage=<%=pages%>">末页</a>

action中的代码：

2. publicActionForwardgg(ActionMappingmapping,ActionFormform,
3. HttpServletRequestrequest,HttpServletResponseresponse)
4. throwsException{
5. Stringmark=request.getParameter("mark");
6. intnowpage=Integer.parseInt(request.getParameter("nowpage"));
8. if(mark.equals("shou")){
9. nowpage=1;
10. }
11. if(mark.equals("xia")){
12. nowpage++;
13. }
14. if(mark.equals("shang")){
15. nowpage--;
16. }
17. request.getSession().setAttribute("nowpage",nowpage);
18. Stringurl="/MyJsp.jsp";
19. returnnewActionForward(url);
20. }