Extjs3.x Struts2 -Json-plugin学习实例 -后台数据处理 03

因为这是只学习项目，所以我没有使用数据库了，直接在Action模式几条数据了。如果使用数据库，那代码量就大了，而这个项目只是学习整合Struts2，所以不用，大家自己确定，

 

数据我是使用static来完成，只要服务器不重新启动，数据就会在，哈哈，方便呀……

 

如何大家真不想自己输入代码，就下载吧。见附件。

 

实际后台代码也是非常的简单，只有几个类User/Dept/UserAction/DeptAction

大家自己建立相应的包

 

 

代码如下：

 

1、Dept类

package com.wjt276.extjs.model;
public class Dept {

	private int id;
	
	private String name;
	
	private String description;

	public Dept(int id, String name, String description) {
		super();
		this.id = id;
		this.name = name;
		this.description = description;
	}

	public Dept() {
		super();
	}

 //……我省了getter/setter方法，在项目中大家自己生成------		
}

 2、User

 

package com.wjt276.extjs.model;

public class User {

	private int id;
	
	private String username;
	
	private String name;
	
	private String password;
	
	private boolean sex;
	
	private String phone;
	
	private String tel;
	
	private String url;
	
	private String email;
	
	private Dept dept;
	
	private String address;
	
	private String description;	

	public User() {	}
	
	public User(int id, String username, String name, String password,
			String phone, String tel, String url, String email,
			String address, boolean sex, String description) {
		super();
		this.id = id;
		this.username = username;
		this.name = name;
		this.password = password;
		this.phone = phone;
		this.tel = tel;
		this.url = url;
		this.email = email;
		this.address = address;
		this.sex = sex;
		this.description = description;
	}

   //……我省了getter/setter方法，在项目中大家自己生成------	
}

 

3、DeptAction

数据也是在这里生成的，我多加了几个对象，是为了在前台观查数据，可以不是太好，大家不要管它

package com.wjt276.extjs.action;

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

import com.opensymphony.xwork2.ActionSupport;
import com.wjt276.extjs.model.Dept;

@SuppressWarnings("serial")
public class DeptAction extends ActionSupport {
	
	static SecureRandom random = new SecureRandom();  

	private Dept dept;

	private String msg;
	
	private boolean success;
	
	private int totalProperty;


	private List<Dept> depts = new ArrayList<Dept>();

	private Map<Integer, Dept> deptsMap = new HashMap<Integer, Dept>();

	private static List<Dept> lists = new ArrayList<Dept>();
	private static Map<Integer, Dept> maps = new HashMap<Integer, Dept>();

	static {
		Dept temp = new Dept(random.nextInt(100), "技术部", "技术……");
		Dept temp1 = new Dept(random.nextInt(100), "技术部5", "技术…55…");

		lists.add(temp);
		lists.add(temp1);
		maps.put(temp.getId(), temp);
		maps.put(temp1.getId(), temp1);
	}

	@Override
	public String execute() throws Exception {
		this.depts = lists;
		this.deptsMap = maps;
		this.success = true;
		this.totalProperty = this.depts.size();

		return SUCCESS;

	}

	public String add() throws Exception {
		
		System.out.println(dept.getName() + "," + dept.getDescription());
		
		Dept deptTemp = new Dept(random.nextInt(100),dept.getName(),dept.getDescription()); 
		
		lists.add(deptTemp);
		maps.put(deptTemp.getId(),deptTemp);
		
		this.success = true;
		return this.execute();
	}

	public String findDeptById(){
		this.dept = maps.get(dept.getId());
		this.success = this.dept != null;
		return SUCCESS;
	}
	
	public String delete() {
		return SUCCESS;
	}

	public String modify() throws Exception {
		if(this.dept == null){
			this.success = false;
			this.msg = "数据不合法……";
		} else {
			Dept tempDept = maps.get(dept.getId());
			this.success = tempDept != null;
			if(this.success){
				maps.put(this.dept.getId(), this.dept);
				for(int i = 0; i < lists.size(); i++){
					Dept dept3 = (Dept)lists.get(i);
					if(this.dept.getId() == dept3.getId()){
						lists.remove(i);
						lists.add(this.dept);
						System.out.println("找到");
						break;						
					}
					System.out.println(dept3.getId());
				}
				
				return this.execute();
			} else {
				this.msg = "数据记录不存在!";
			}
		}		
		return SUCCESS;
	}

	
//-----------以下为Setter/getter方法--------------------------------------------------------------------------
	
	public List<Dept> getDepts() {
		return depts;
	}

	public void setDepts(List<Dept> depts) {
		this.depts = depts;
	}

	public Dept getDept() {
		return dept;
	}

	public void setDept(Dept dept) {
		this.dept = dept;
	}

	public Map<Integer, Dept> getDeptsMap() {
		return deptsMap;
	}

	public void setDeptsMap(Map<Integer, Dept> deptsMap) {
		this.deptsMap = deptsMap;
	}

	public int getTotalProperty() {
		return totalProperty;
	}

	public void setTotalProperty(int totalProperty) {
		this.totalProperty = totalProperty;
	}

	public String getMsg() {
		return msg;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}
	
	public boolean isSuccess() {
		return success;
	}

	public void setSuccess(boolean success) {
		this.success = success;
	}

	public static List<Dept> getLists() {
		return lists;
	}

	public static Map<Integer, Dept> getMaps() {
		return maps;
	}
}

 

 

4、UserAction

 

package com.wjt276.extjs.action;

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

import org.apache.struts2.json.annotations.JSON;

import com.opensymphony.xwork2.ActionSupport;
import com.wjt276.extjs.model.Dept;
import com.wjt276.extjs.model.User;

@SuppressWarnings("serial")
public class UserAction extends ActionSupport {

	static SecureRandom random = new SecureRandom();  

	private String ids;
	
	
	public String getIds() {
		return ids;
	}

	public void setIds(String ids) {
		this.ids = ids;
	}

	private String msg;
	
	private Dept dept;
	
	private boolean success;
	
	private int totalProperty;
	
	private User user;	
	
	private List<User> users = new ArrayList<User>();
	
	private Map<Integer,User> usersMap = new HashMap<Integer,User>();
	
	private static List<User> lists = new ArrayList<User>();
	private static Map<Integer,User> maps = new HashMap<Integer,User>();
	
	static {
		User temp = new User(random.nextInt(100),
							"wjt276",
							"吴俊涛",
							"19831213",
							"05513238815",
							"18955113096",
							"http://wjt276.iteye.com",
							"wjt276@126.com",
							"安徽合肥淝河南路",
							true,
							"我是一名技术员"
							);
		
		temp.setDept(DeptAction.getLists().get(0));
		lists.add(temp);
		maps.put(temp.getId(), temp);
	}
	
	
	@Override
	public String execute() throws Exception {
		
		this.users = lists;
		this.usersMap = maps;
		
		this.success = true;
		this.totalProperty = this.users.size();
		
		return SUCCESS;
		
	}

	public String add() throws Exception{
	
		System.out.println(this.user.getUsername() + "," + this.user.getName());
		
		this.user.setId(random.nextInt(100));
		this.user.setDept(DeptAction.getMaps().get(this.dept.getId()));
		
		lists.add(this.user);
		maps.put(this.user.getId(),this.user);
		
		this.success = true;
		return this.execute();
	}
	
	public String findUserById(){
		this.user = maps.get(this.user.getId());
		this.success = this.user != null;
		return SUCCESS;
	}
	
	public String delete() throws Exception{
		
		if(this.ids != null && !"".equals(this.ids.trim())){
			String[] id_s = this.ids.split(",");
			
			for(int i = 0; i < id_s.length; i++){
				int id = Integer.parseInt(id_s[i]);
				System.out.println(id);
				for(int j = 0; j < lists.size(); j++){
					User user3 = (User)lists.get(j);
					if(id == user3.getId()){
						lists.remove(j);
						maps.remove(id);
						break;
					}
				}								
			}
		}
		return this.execute();
	}
	
	public String modify() throws Exception{
		
		if(this.user == null){
			this.success = false;
			this.msg = "数据不合法……";
		} else {
			User tempUser = maps.get(this.user.getId());
			this.success = tempUser != null;
			if(this.success){
				maps.put(this.user.getId(), this.user);
				for(int i = 0; i < lists.size(); i++){
					User user3 = (User)lists.get(i);
					if(this.user.getId() == user3.getId()){
						lists.remove(i);
						this.user.setDept(DeptAction.getMaps().get(this.dept.getId()));
						lists.add(this.user);
						System.out.println("找到");
						break;						
					}
					System.out.println(user3.getId());
				}
				
				return this.execute();
			} else {
				this.msg = "数据记录不存在!";
			}
		}		
		return SUCCESS;
	}

	//-------------以下为getter/setter方法------------------------------------------------------------------
	
	public static SecureRandom getRandom() {
		return random;
	}

	public static void setRandom(SecureRandom random) {
		UserAction.random = random;
	}

	public String getMsg() {
		return msg;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}

	public Dept getDept() {
		return dept;
	}

	public void setDept(Dept dept) {
		this.dept = dept;
	}

	public boolean isSuccess() {
		return success;
	}

	public void setSuccess(boolean success) {
		this.success = success;
	}

	public int getTotalProperty() {
		return totalProperty;
	}

	public void setTotalProperty(int totalProperty) {
		this.totalProperty = totalProperty;
	}

	public User getUser() {
		return user;
	}

	public void setUser(User user) {
		this.user = user;
	}

	public List<User> getUsers() {
		return users;
	}

	public void setUsers(List<User> users) {
		this.users = users;
	}

	public Map<Integer, User> getUsersMap() {
		return usersMap;
	}

	public void setUsersMap(Map<Integer, User> usersMap) {
		this.usersMap = usersMap;
	}

	
	
	
}

  

 

 

 

 

多谢，我正需要这些。