struts ext2对JSON数据的处理

package action;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.googlecode.jsonplugin.annotations.JSON;
import common.CacheManager;
import domain.ListRange;
import domain.User;
import UserService;
import ErrorMessage;

public class UserAction extends BaseActionSupport{
    private UserService userService;
    private int userid;
    private String name;
    private String loginid;
    private String usertype;

    public String list(){
        listrange=new ListRange();
        List l=cacheManager.getUsersList();
        if (l==null||l.size()==0){
            listrange.setTotalSize(0);
            return SUCCESS;
        }
        listrange.setTotalSize(l.size());
        List l2=null;
        if (limit<=0)
            l2=l;
        else{
            l2=new ArrayList();
            for (int i=start;i<start+limit&&i<l.size();i++){
                l2.add(l.get(i));
            }
        }
        listrange.setData(l2.toArray());

        return SUCCESS;
    }

    public String save(){
        int rtn=0;
        if (userid==0){
            rtn=userService.addUser(loginid, name, usertype);
        } else {
            User user=new User();
            user.setUserid(userid);
            user.setName(name);
            user.setUsertype(usertype);
            user.setLoginid(loginid);
            rtn=userService.updateUser(user);
        }
        setReturn(rtn);
        return SUCCESS;
    }

    @JSON(serialize=false)
    public String getLoginid() {
        return loginid;
    }
    public void setLoginid(String loginid) {
        this.loginid = loginid;
    }
    @JSON(serialize=false)
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    @JSON(serialize=false)
    public String getUsertype() {
        return usertype;
    }
    public void setUsertype(String usertype) {
        this.usertype = usertype;
    }
    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    @JSON(serialize=true)
    public int getUserid() {
        return userid;
    }

    public void setUserid(int userid) {
        this.userid = userid;
    }

    @JSON(name="list")
    public ListRange getListrange() {
        return listrange;
    }

    @JSON
    public boolean isFailure() {
        return failure;
    }
    @JSON
    public boolean isSuccess() {
        return success;
    }
    @JSON
    public String getInfo() {
        return info;
    }

}

 

<action name="user" class="userAction">   
            <result type="json"/>   
        </action>