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   源码介绍

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package com.action;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Random;

import javax.servlet.http.*;

import org.apache.struts2.ServletActionContext;

import com.daoimpl.DaoImpl;
import com.entity.UserInfo;
import com.google.gson.Gson;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class MyAction extends ActionSupport{
	
	private static final long serialVersionUID = 1L;
	
	private HttpServletRequest request = ServletActionContext.getRequest();
	private HttpServletResponse response = ServletActionContext.getResponse();
	private String parameter="";
	private String cfi="";
	private UserInfo user=new UserInfo();
	
	public void executeUser() throws IOException{
		
	}
	public void ChaXUser() throws IOException{
		response.setCharacterEncoding("utf-8");
		String userID = (String)ActionContext.getContext().getSession().get("userID");
		UserInfo user=null;
		user = DaoImpl.CaXunX(userID);
		if (user!=null){
			//构建 GSON 对象
			Gson gson=new Gson();
			out(gson.toJson(user));
		}else{
			out("exit");
		}
	}
	public void UpdateUser() throws IOException{
		/*确保Session里的ID和表单里的ID一致*///防止混入Intercept
		user.setIdCard((String)ActionContext.getContext().getSession().get("userID"));
		if (DaoImpl.Update3(user)){
			out("true");
		}else{
			out("false");
		}
	}
	public void ExitUser() throws IOException{
		ActionContext.getContext().getSession().remove("userID");
		out("true");
	}
	public void Dl() throws IOException{
		UserInfo user1=null;
		String put="false";
		String sql=
			"select * from userinfo where ("  
			"idCard='" user.getIdCard() "' or "  
					"userNo='" user.getIdCard() "') and "  
							"password='" user.getPassword() "' and "  
									"userflag='0'";
		user1=DaoImpl.CaXun2(sql);//验证登陆
		if (user1!=null){
			ActionContext.getContext().getSession().put("userID", user1.getIdCard());//设置Session
			user1.setUserflag("1");
			if (DaoImpl.Update1(user1)){
				put = "business/UserIndex.jsp";
			}
		}
		out(put);
	}
	public void Zc() throws IOException{
		//随机卡号
		Random suiji = new Random();
		int fanwei = Integer.parseInt(user.getIdCard().substring(0,6));//截取身份证前6位数字的强转成int
		String suiji_s;
		do{//查询是否随机重复（第一次先以身份证查询）
			suiji_s=String.valueOf(suiji.nextInt(fanwei));//设置成随机数的范围,进行随机
		}while(DaoImpl.CaXun1(suiji_s)!=null||Integer.parseInt(suiji_s)<100000);
		user.setUserNo(fanwei suiji_s);
		DaoImpl.Zcdao(user);
		out("true");
	}
	public void out(String put) throws IOException{
		PrintWriter out = response.getWriter();
		out.print(put);
		out.close();
	}
	//服务器端的校验
	//对action所有方法进行校验
	//validateXxx 是对指定方法校验 Xxx：要校验的方法名
	public void validateUpdateUser(){
		cfi="ID>";
		validateZc();
	}
	public void validateZc(){//public void validateZc(String ...cfi)可变参数数组 (!拦截器方法不能有参数!)
		if (request.getParameter("parameter").equals("123")){
			addFieldError("input", "Error！");
		}
		
		if(user.getUserName()==null||user.getUserName().equals("")){
			addFieldError("input", "必须输入用户名！");
		}
		if(user.getUserAge()==null||user.getUserAge().equals("")){
			addFieldError("input", "必须输入年龄！");
		}else if(!user.getUserAge().matches("^\\d $")){
			addFieldError("input", "年龄必须是整数！");
		}else{
			if(Integer.parseInt(user.getUserAge())<1||Integer.parseInt(user.getUserAge())>150){
				addFieldError("input", "年龄必须在1-150之间！");
			}
		}
		
		if(user.getIdCard()==null||user.getIdCard().equals("")){
			addFieldError("input", "必须输入身份证！");
		}else if(DaoImpl.CaXun1(user.getIdCard())!=null&&!cfi.equals("ID>")){
			addFieldError("input", "该用户已被注册！");
		}
		if(user.getPassword()==null||user.getPassword().equals("")){
			addFieldError("input", "必须输入密码！");
		}
	}

	public void setParameter(String parameter) {
		this.parameter = parameter;
	}
	public String getParameter() {
		return parameter;
	}
	public void setUser(UserInfo user) {
		this.user = user;
	}
	public UserInfo getUser() {
		return user;
	}
	
}