loginaction.java

完整的合同管理信息系统

package com.ICT.AFC.user.actions;

import com.ICT.AFC.user.forms.*;
import org.apache.struts.action.*;
import javax.servlet.http.*;
import javax.servlet.ServletContext;
import javax.sql.DataSource;
import com.ICT.AFC.DB.DB;
import com.ICT.AFC.user.beans.UserOperate;
import com.ICT.AFC.contracttree.beans.*;
import com.ICT.AFC.contract.beans.ContractOperate;
import com.ICT.AFC.user.beans.User;

public class LoginAction
    extends Action {
  public ActionForward execute(ActionMapping Mapping,
                               ActionForm Form,
                               HttpServletRequest Request,
                               HttpServletResponse Response) throws Exception {
     // 获取数据源
    HttpSession session = Request.getSession();
    ServletContext context = servlet.getServletContext();
    DataSource dataSource = (DataSource) context.getAttribute("contract");
    String PageForward = "main";
    DB db = new DB(dataSource);
    LoginForm loginform = (LoginForm) Form;   //创建LoginForm对象获取登录页面用户名和密码
    String useraccount = loginform.getUserAccount();
    String userpassword = loginform.getUserPassword();
    useraccount = new String(useraccount.getBytes("ISO8859_1"));
    //检查用户合法性，并将该用户相关信息放置user对象
    User user = UserOperate.checkUser(db, useraccount, userpassword);
    String account = user.getUserAccount();
    if (account == null) {
      PageForward = "loginwrong";
    }
    else {
      session.setAttribute("USER", user);
      String treestr = ContractTree.getTree(db, user);
      session.setAttribute("CONTRACTTREE", treestr);
      session.setAttribute("CONTRACTINFO", ContractOperate.searchContract(db, 0));

    }
    db.close();
    return (Mapping.findForward(PageForward));

  }

}