Ajax无刷新实现获取动态页面数据

package com.ldl.action; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import com.googlecode.jsonplugin.annotations.JSON; import com.opensymphony.xwork2.Action; public class BigPageAction { private static Integer NUM = 100; private Map json = new HashMap(); private Integer toPage; private Integer pageSize; private String keyword; public String getData1(){ List<String []> list = new ArrayList<String []>(); for(int i=0;i<NUM;i++){ list.add(new String[]{"公司" + i,"www.add"+i + ".com","2"+i,"3"+i}); } String[][] data = null; data = list.toArray(new String[list.size()][4]); json.put("data", data); return Action.SUCCESS; } public String getData2(){ List<String []> list = new ArrayList<String []>(); for(int i=0;i<NUM;i++){ list.add(new String[]{"公司" + i,"www.add"+i + ".com","2"+i,"3"+i}); } if(toPage < 1){ toPage = 1; } if(pageSize < 1){ pageSize = 50; } Integer start = (toPage - 1)*pageSize; Integer end = toPage*pageSize; int c = 0 ; for (Iterator iterator = list.iterator(); iterator.hasNext();) { String[] strings = (String[]) iterator.next(); if(keyword != null && strings[0].indexOf(keyword) == -1){ c ++; iterator.remove(); } } String[][] data = null; if(start > NUM -c){ json.put("data", data); json.put("totalRecord", 0); return Action.SUCCESS; } if(end > NUM -c)end = NUM -c; List<String []> list1 = list.subList(start, end); data = list1.toArray(new String[list1.size()][4]); json.put("data", data); json.put("totalRecord", NUM - c); return Action.SUCCESS; } public Map getJson() { return json; } public void setJson(Map json) { this.json = json; } public Integer getToPage() { return toPage; } public void setToPage(Integer toPage) { this.toPage = toPage; } public Integer getPageSize() { return pageSize; } public void setPageSize(Integer pageSize) { this.pageSize = pageSize; } public String getKeyword() { return keyword; } public void setKeyword(String keyword) { this.keyword = keyword; } }