baseController

package cn.ylu.stxy.xj2014.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authz.AuthorizationException;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;

import com.google.gson.Gson;

import cn.ylu.stxy.xj2014.parameter.Attribute;
import cn.ylu.stxy.xj2014.parameter.Categorys;
import cn.ylu.stxy.xj2014.parameter.Directory;
import cn.ylu.stxy.xj2014.vo.ResultVo;
import cn.ylu.stxy.xj2014.vo.UserVo;

public class BaseController {

    protected HttpServletRequest request;
    protected HttpServletResponse response;
    
    public int defEnd = 0;
    public int defSTART = 29;

    protected Gson gson = new Gson();


    @ModelAttribute
    public void setReqAndResp(HttpServletRequest request, HttpServletResponse response) {
        this.request = request;
        this.response = response;
        
    }

    /**
     * 登录认证异常
     */
    // @ExceptionHandler({ UnauthenticatedException.class,
    // AuthenticationException.class })
/*    @ExceptionHandler({ UnauthenticatedException.class})
    public String authenticationException(HttpServletRequest request, HttpServletResponse response) {
        if (isAjaxRequest(request)) {
            // 输出JSON
            System.out.println("检测到Ajax");
            Map<String, Object> map = new HashMap<String, Object>();
            map.put("code", "-999");
            map.put("message", "未登录");
            writeJson(map, response);
            return null;
        } else {
            return "redirect:/system/login";
        }
    }*/

    /**
     * 权限异常
     */

    @ExceptionHandler(AuthorizationException.class)
    public String authorizationException(HttpServletRequest request, HttpServletResponse response) {                        
        if (isAjaxRequest(request)) {
            // 输出JSON        
            ResultVo resultVo = failed();
            writeJson(resultVo, response);
            return null;
        } else {
            return "redirect:404";
        }
    }

    /**
     * 输出JSON
     *
     * @param response
     * @author SHANHY
     * @create 2017年4月4日
     */
    private void writeJson(ResultVo resultVo, HttpServletResponse response) {
        PrintWriter out = null;
        try {
            response.setCharacterEncoding("UTF-8");
            response.setContentType("application/json; charset=utf-8");
            out = response.getWriter();
            out.write(gson.toJson(resultVo));
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (out != null) {
                out.close();
            }
        }
    }

    /**
     * 是否是Ajax请求
     *
     * @param request
     * @return 日
     */
    public static boolean isAjaxRequest(HttpServletRequest request) {
        String requestedWith = request.getHeader("x-requested-with");
        if (requestedWith != null && requestedWith.equalsIgnoreCase("XMLHttpRequest")) {
            return true;
        } else {
            return false;
        }
    }

    @InitBinder
    protected void initBinder(WebDataBinder binder) {
        binder.registerCustomEditor(Date.class,
                new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"), true));
        binder.registerCustomEditor(Date.class, new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), true));
    }

    /**
     * 返回主目录页面
     * 
     * @param htmlName
     * @return
     */
    public String HtmlModel(String htmlName) {

        return "/" + htmlName;

    }

    /**
     * 重定向
     * 
     * @param htmlName
     * @return
     */
    public String redirectHtmlModel(String htmlName) {

        return "redirect:" + HtmlModel(htmlName);

    }

    /**
     * 返回含目录页面
     * 
     * @param directory
     * @param htmlName
     * @return
     */
    public String HtmlModel(Directory directory, String htmlName) {

        return "/" + directory.val() + "/" + htmlName;

    }

    /**
     * 重定向
     * 
     * @param directory
     * @param htmlName
     * @return
     */
    public String redirectHtmlModel(Directory directory, String htmlName) {

        return "redirect:" + HtmlModel(directory, htmlName);

    }

    public ResultVo success() {
        return success(null);
    }

    public ResultVo success(Object data) {
        ResultVo result = new ResultVo();
        result.setState(true); // 默认返回成功
        result.setData(data);
        result.setStateCode(Categorys.CG.val());
        result.setMessage("操作成功");
        return result;
    }

    public ResultVo success(Object data, String mess) {
        ResultVo resultVo = success(data);
        resultVo.setMessage(mess);
        return resultVo;
    }
    public ResultVo failed() {
        ResultVo result = new ResultVo();
        result.setMessage("权限不足");
        result.setState(false); // 默认返回成功
        result.setStateCode(Categorys.SB.val());
        result.setData(null);
        return result;
    }
    public ResultVo error() {
        ResultVo result = new ResultVo();
        result.setMessage("系统错误");
        result.setState(false); // 默认返回成功
        result.setStateCode(Categorys.ERROR.val());
        result.setData(null);
        return result;
    }

    public ResultVo error(String msg) {
        ResultVo result = error();
        result.setMessage(msg);
        return result;
    }

    public ResultVo error(String stateCode, String msg) {
        ResultVo result = error(msg);
        result.setStateCode(stateCode);
        return result;
    }
    /**
     * 获取shiro 的session
     * 
     * @return
     */
    protected Session getSession() {
        Subject subject = SecurityUtils.getSubject();
        Session session = subject.getSession();
        return session;
    }
    /**
     * 获取登录用户信息
     * 
     * @return
     */
    public UserVo getUserVo() {
        Object session = request.getSession().getAttribute(Attribute.LOGIN_USER.getName());
        return session == null ? null : (UserVo) session;
    }

    /**
     * 获取请求完整路径
     * 
     * @param request
     * @return
     */
    public String getUrl(HttpServletRequest request) {
        String url = request.getRequestURI();
        String params = "";
        if (request.getQueryString() != null) {
            params = request.getQueryString().toString();
        }
        if (!"".equals(params)) {
            url = url + "?" + params;
        }
        return url;
    }



    /**
     * 获取日期
     * 
     * @param day
     *            天
     */
    public String getDate(int day) {
        StringBuffer s = new StringBuffer();
        Calendar c = Calendar.getInstance();
        int currentDay = c.get(Calendar.DATE);
        if (day < 0) {
            c.add(Calendar.YEAR, -1);
            c.set(Calendar.DATE, currentDay);
        } else if (day == 29) {
            c.add(Calendar.MONTH, -1);
            c.set(Calendar.DATE, currentDay);
        } else {
            c.add(Calendar.DATE, -day);
        }

        s.append(c.get(Calendar.YEAR) + "-");
        s.append((c.get(Calendar.MONTH) + 1) < 10 ? ("0" + (c.get(Calendar.MONTH) + 1)) : (c.get(Calendar.MONTH) + 1));
        s.append("-");
        s.append(c.get(Calendar.DATE) < 10 ? ("0" + c.get(Calendar.DATE)) : c.get(Calendar.DATE));
        return s.toString();
    }

    protected String log() {
        String methodName = Thread.currentThread().getStackTrace()[2].getMethodName();
        StringBuilder stringBuilder = new StringBuilder(getUserVo() == null ? "" : getUserVo().getName());
        stringBuilder.append("请求").append(methodName);
        return stringBuilder.toString();
    }

    protected String log(Map map) {
        String methodName = Thread.currentThread().getStackTrace()[2].getMethodName();
        StringBuilder stringBuilder = new StringBuilder(getUserVo() == null ? "" : getUserVo().getName());
        stringBuilder.append("请求").append(methodName).append(gson.toJson(map));
        return stringBuilder.toString();
    }

    protected String log(Object map) {
        String methodName = Thread.currentThread().getStackTrace()[2].getMethodName();
        StringBuilder stringBuilder = new StringBuilder(getUserVo() == null ? "" : getUserVo().getName());
        stringBuilder.append("请求").append(methodName);
        try {
            stringBuilder.append(gson.toJson(map));
        } catch (Exception e) {
            stringBuilder.append(map.toString());
        }
        return stringBuilder.toString();
    }
}