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

package web.controller;

import db.form.DBAction;
import db.form.PageResult;
import db.form.Type;
import db.model.AbstractModel;
import org.springframework.dao.DataAccessException;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import web.service.BaseService;

import java.util.List;

public abstract class TableController<T extends AbstractModel,A extends T,E extends BaseService> extends BaseController<T,A,E> {


    @RequestMapping("table")
    public String find(Model model,@ModelAttribute("command") A command,PageResult pageResult){
        DBAction action=DBAction.R;
        log.info(tableName+ "进行批量" + action.getCh() + "操作请求");
        PageResult result;
        if(checkAction(action)) {
            try {
                Long rowCount=rowCount(command);
                if(rowCount>0) {
                    List list = find(command, pageResult.getCurrentPage()*pageResult.getPageSize(), pageResult.getPageSize());
                    result=new PageResult<T>(rowCount, pageResult.getCurrentPage(),list,pageResult.getPageSize() , Type.success);
                }else{
                    result=new PageResult(Type.fail,"没有记录");
                }
            } catch (DataAccessException e) {
                log.error(e);
                result=new PageResult(Type.fail,"非法操作");
            }
        }else{
            result=new PageResult(Type.fail,tableName + "不允许" + action.getCh() + "操作");
        }

        model.addAttribute("datas", result);
        return "table";
    }

    @Override
    protected boolean checkAction(DBAction action) {
        return false;
    }

    protected List find(A command, Integer firstResult,Integer maxResults){
        return service.find(getDetachedCriteria(command), firstResult, maxResults);
    }

    protected long rowCount(A command){
        return service.rowCount(getDetachedCriteria(command));
    }

}