webcrawler/web/src/main/java/web/controller/WordController.java

package web.controller;

import db.model.bilibili.WordModel;
import org.apache.commons.lang3.StringUtils;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.List;

@Controller
@RequestMapping("/word")
public class WordController extends BiliController<WordModel> {

    @Autowired
    @Qualifier("Tweb.service.BiliService")
    private HibernateTransactionManager hibernateTransactionManager;

    @RequestMapping
    public String list(@ModelAttribute WordModel queryCommand, @RequestParam(defaultValue = "0") int firstResult, @RequestParam(defaultValue = "0") int maxResults, Model model){
       model.addAttribute("word",super.get(queryCommand, firstResult, maxResults));
       List<String> courseNames=service.find(DetachedCriteria.forClass(WordModel.class).setProjection(Projections.groupProperty("courseName")));
       model.addAttribute("courseNames",courseNames);
       return "word/word";
    }

    @Override
    protected DetachedCriteria getDetachedCriteria(WordModel queryCommand) {
        if(StringUtils.isNotEmpty(queryCommand.getCourseName())){
            return super.getDetachedCriteria(queryCommand).add(Restrictions.eq("courseName",queryCommand.getCourseName()));
        }else{
            return super.getDetachedCriteria(queryCommand);
        }

    }
}