/**
* Copyright 1996-2013 Founder International Co.,Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @author shao
*/
package com.founder.fix.fixflow;
import java.io.IOException;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.context.WebApplicationContext;
import com.founder.fix.fixflow.core.ProcessEngineManagement;
import com.founder.fix.fixflow.core.impl.db.SqlCommand;
import com.founder.fix.fixflow.core.impl.util.StringUtil;
import com.founder.fix.fixflow.service.FlowCenterService;
import com.founder.fix.fixflow.shell.DBConnFactory;
import com.founder.fix.fixflow.util.MD5;
import com.founder.fix.fixflow.util.SpringConfigLoadHelper;
/**
* Servlet implementation class LoginServlet
*/
public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private static boolean isCreated = false;
/**
* @see HttpServlet#HttpServlet()
*/
public LoginServlet() {
super();
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request,response);
}
public void init(){
if(!SpringConfigLoadHelper.isCreated()){
WebApplicationContext wac = (WebApplicationContext) this.getServletContext().getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
SpringConfigLoadHelper.buildApplicationContext(wac);
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String dataBaseId=ProcessEngineManagement.getDefaultProcessEngine().getProcessEngineConfiguration().getSelectedDatabase().getId();
DBConnFactory dbcf = (DBConnFactory)SpringConfigLoadHelper.getBean(dataBaseId);
Connection connection = null;
try {
String context = request.getContextPath();
//从登录的口获取到用户名和密码
String userName = request.getParameter("userName");
String password = request.getParameter("password");
List<Object> list= new ArrayList<Object>();
//该接口同时也是登出的口，当发现有特殊参数时则做登出操作。
String logout = request.getParameter("doLogOut");
if(StringUtil.isNotEmpty(logout)){
request.getSession().invalidate();
response.sendRedirect(context+"/fixflow/login.jsp");
return;
}
//这里进行用户名密码验证，可以任意修改这里的代码。
list.add(userName);
password = MD5.getMD5(password.getBytes());
list.add(password);
StringBuffer sb = new StringBuffer();
sb.append("SELECT USERID,USERNAME FROM AU_USERINFO WHERE LOGINID=? AND PASSWORD=?");
connection = dbcf.createConnection();
//这里是自带的数据库操作方式。
SqlCommand sqlcommand = new SqlCommand(connection);
List<Map<String, Object>> list2 = sqlcommand.queryForList(sb.toString(),list);
if(list2!=null && list2.size()>0){
//这里约定了一个参数，流程引擎在运行时会默认从session里按照这两个key来获取参数，如果替换了登录的方式，请保证这两个key依然可以获取到正确的数据
request.getSession().setAttribute(FlowCenterService.LOGIN_USER_ID, list2.get(0).get("USERID"));
request.getSession().setAttribute(FlowCenterService.LOGIN_USER_NAME, list2.get(0).get("USERNAME"));
//登录时根据登录的目标切换跳转目标
String loginType = request.getParameter("loginType");
if(loginType !=null && loginType.equals("on")){
request.setAttribute("action", "processDefinitionList");
response.sendRedirect(context+"/FlowManager?action=processDefinitionList");
}else{
request.setAttribute("action", "getMyTask");
response.sendRedirect(context+"/FlowCenter?action=getMyTask");
}
}else{
response.setContentType("text/html;charset=utf-8");
response.getWriter().print("<script>alert('用户名或密码错误！');window.location.href='"+context+"/fixflow/login.jsp';</script>");
}
} catch (SQLException e) {
e.printStackTrace();
}finally{
//最终关闭数据库连接
try {
if(connection!=null && !connection.isClosed())
connection.close();
} catch (SQLException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
}
}