jquery的ajax传json对象数组到struts2的action

package com.rajesh.json; import java.util.ArrayList; import java.util.List; import com.rajesh.json.Report; import com.opensymphony.xwork2.ActionSupport; public class ReadJSON extends ActionSupport { private static final long serialVersionUID = -6765991741441442190L; private List<Report> data; public String readJSON() { System.out.println("getJSON Method Call Before"); data = new ArrayList<Report>(); Report obj = new Report(); obj.setActive(false); obj.setColor("Green"); obj.setDate("05-Sep-2013"); obj.setId(1); obj.setName("Rajesh"); this.data.add(obj); System.out.println("getJSON Method Call"); System.out.println("Length of Data is "+data.size()); try{ for (int i = 0; i < data.size(); i++) { System.out.println("Color is " + data.get(i).getColor()); System.out.println("Date is " + data.get(i).getDate()); System.out.println("ID is " + data.get(i).getId()); System.out.println("Names is " + data.get(i).getName()); }}catch(Exception e) { e.printStackTrace(); } return SUCCESS; } public String writeJSON() { try { System.out.println(data.size()); for (int i = 0; i < data.size(); i++) { System.out.println("Data " + data.get(i).getColor() +"-"+ data.get(i).getDate() +"-"+ data.get(i).getId()+"-"+ data.get(i).getName()); } System.out.println("Execute Method"); } catch (Exception e) { e.printStackTrace(); } return SUCCESS; } public List<Report> getData() { System.out.println("Getter Call"); return data; } public void setData(List<Report> data) { System.out.println("Setter Call Flow"); this.data = data; } }