NewsController.java

package com.insoul.ti.controller;

import java.util.Date;
import java.util.List;
import java.util.UUID;

import javax.validation.Valid;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;

import com.insoul.copartner.dao.criteria.NewsCriteria;
import com.insoul.copartner.domain.News;
import com.insoul.copartner.util.CDNUtil;
import com.insoul.copartner.util.FileUtil;
import com.insoul.ti.WebBase;
import com.insoul.ti.req.NewsListRequest;
import com.insoul.ti.req.NewsRequest;
import com.insoul.ti.req.PageQuery;
import com.insoul.ti.req.ViewRequest;
import com.insoul.ti.shiro.Permission;

/**
 * @author 刘飞 E-mail:liufei_it@126.com
 * 
 * @version 1.0.0
 * @since 2015年7月4日 下午11:37:15
 */
@Controller
@RequestMapping("/news")
@Permission("authc")
public class NewsController extends WebBase {

    private static final String NEWS_EDIT = "news_edit";
    private static final String NEWS_ADD = "news_add";
    private static final String NEWS_DETAIL = "news_detail";
    private static final String NEWS_LIST = "news_list";

    @RequestMapping("/list")
    public ModelAndView list(@Valid NewsListRequest request, BindingResult result) {
        ModelAndView mv = createModelView(NEWS_LIST, request);
        PageQuery query = request.init().getQuery();
        NewsCriteria criteria = new NewsCriteria();
        criteria.setLimit(query.getPage_size());
        criteria.setOffset(Long.valueOf(query.getIndex()).intValue());
        criteria.setType(request.getType());
        String[] status = null;
        if (StringUtils.isNotBlank(request.getStatus())) {
            status = new String[] { request.getStatus() };
        }
        criteria.setStatus(status);
        criteria.setTitle(request.getTitle());
        List<News> list = newsDAO.queryNews(criteria);
        Long count = newsDAO.countNews(criteria);
        query.setCount((count == null || count <= 0L) ? 0 : count.intValue());
        mv.addObject("query", query);
        mv.addObject("newsList", list);
        mv.addObject("success", CollectionUtils.isNotEmpty(list));
        mv.addObject("req", request);
        return mv;
    }

    @RequestMapping("/update_status/{newsId}")
    @Transactional(value = "transactionManager", rollbackFor = Throwable.class)
    public ModelAndView updateStatus(@PathVariable Long newsId,
            @RequestParam(value = "status", required = true) String status) {
        try {
            News news = newsDAO.get(newsId);
            news.setStatus(status);
            newsDAO.update(news);
            returnJson(true, "200", "修改成功!!");
        } catch (Exception e) {
            returnJson(true, "500", "修改失败!!");
        }
        return null;
    }

    @RequestMapping("/detail/{newsId}")
    public ModelAndView detail(@PathVariable Long newsId, ViewRequest req) {
        ModelAndView mv = createModelView(NEWS_DETAIL, req);
        mv.addObject("viewname", NEWS_LIST);
        try {
            News news = newsDAO.get(newsId);
            mv.addObject("news", news);
            mv.addObject("success", news != null);
        } catch (Exception e) {
            mv.addObject("success", false);
        }
        return mv;
    }

    @RequestMapping("/add")
    public ModelAndView add(ViewRequest req) {
        ModelAndView mv = createModelView(NEWS_ADD, req);
        mv.addObject("viewname", NEWS_LIST);
        return mv;
    }

    @RequestMapping("/edit/{newsId}")
    public ModelAndView edit(@PathVariable Long newsId, ViewRequest req) {
        ModelAndView mv = createModelView(NEWS_EDIT, req);
        News news = newsDAO.get(newsId);
        mv.addObject("news", news);
        mv.addObject("viewname", NEWS_LIST);
        return mv;
    }

    @RequestMapping("/update/{newsId}")
    @Transactional(value = "transactionManager", rollbackFor = Throwable.class)
    public ModelAndView update(@PathVariable Long newsId, @Valid NewsRequest request, BindingResult result) {
        News news = newsDAO.get(newsId);
        MultipartFile image = request.getCoverImg();
        if (image != null) {
            String fileType = FileUtil.getFileType(image.getOriginalFilename());
            if (StringUtils.isNotBlank(fileType)) {
                String fileName = new StringBuilder().append(UUID.randomUUID()).append(".").append(fileType).toString();
                try {
                    String path = CDNUtil.uploadFile(image.getInputStream(), fileName);
                    if (StringUtils.isNotBlank(path)) news.setCoverImg(path);
                } catch (Exception e) {
                    log.error("UploadFile Error.", e);
                }
            }
        }
        news.setArticle(request.getArticle());
        news.setUpdated(new Date());
        news.setStatus(request.getStatus());
        news.setSynopsis(request.getSynopsis());
        news.setTitle(request.getTitle());
        news.setType(request.getType());
        newsDAO.update(news);
        return new ModelAndView("redirect:/news/detail/" + newsId);
    }

    @RequestMapping("/save")
    @Transactional(value = "transactionManager", rollbackFor = Throwable.class)
    public ModelAndView save(@Valid NewsRequest request, BindingResult result) {
        MultipartFile image = request.getCoverImg();
        String path = StringUtils.EMPTY;
        if (image != null) {
            String fileType = FileUtil.getFileType(image.getOriginalFilename());
            if (StringUtils.isNotBlank(fileType)) {
                String fileName = new StringBuilder().append(UUID.randomUUID()).append(".").append(fileType).toString();
                try {
                    path = CDNUtil.uploadFile(image.getInputStream(), fileName);
                } catch (Exception e) {
                    log.error("UploadFile Error.", e);
                }
            }
        }
        News news = new News();
        if (StringUtils.isNotBlank(path)) news.setCoverImg(path);
        news.setAdminUserId(getAdminId());
        news.setArticle(request.getArticle());
        news.setClicks(0L);
        Date time = new Date();
        news.setCreated(time);
        news.setUpdated(time);
        news.setStatus(request.getStatus());
        news.setSynopsis(request.getSynopsis());
        news.setTitle(request.getTitle());
        news.setType(request.getType());
        newsDAO.save(news);
        return new ModelAndView("redirect:/news/detail/" + news.getId());
    }
}