Homestay_app_houtai/mhotel/src/com/happy/dao/impl/FileImplDao.java

package com.happy.dao.impl;

import com.happy.Model.AdminManager;
import com.happy.Model.File;
import com.happy.Until.UUIDUtil;
import com.happy.dao.FileDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository("FileDao")
public class FileImplDao implements FileDao {

    @Autowired
    private NamedParameterJdbcTemplate namedParameterJdbcTemplate;

    public NamedParameterJdbcTemplate getNamedParameterJdbcTemplate() {
        return namedParameterJdbcTemplate;
    }

    public void setNamedParameterJdbcTemplate(
            NamedParameterJdbcTemplate namedParameterJdbcTemplate) {
        this.namedParameterJdbcTemplate = namedParameterJdbcTemplate;
    }

    @Override
    public int insertFile(File file) {
        String sql = "INSERT INTO file (id, link_id, file_url, file_name) VALUES (:id, :link_id, :file_url, :file_name)";
        MapSqlParameterSource sps = new MapSqlParameterSource();
        sps.addValue("link_id",file.getLinkId());
        sps.addValue("file_url",file.getFileUrl());
        sps.addValue("file_name",file.getFileName());
        if(file.getId()==null){
            sps.addValue("id", UUIDUtil.generateID());
        }
        int num = 0;
        try{
            num = namedParameterJdbcTemplate.update(sql, sps);
        }
        catch(Exception e){
            e.printStackTrace();
        }
        return num;
    }

    @Override
    public int updateFile(File file) {
        String sql = "UPDATE file SET id = :id, link_id = :link_id, file_url = :file_url, file_name = :file_name WHERE id = :id";
        MapSqlParameterSource sps = new MapSqlParameterSource();
        sps.addValue("link_id",file.getLinkId());
        sps.addValue("file_url",file.getFileUrl());
        sps.addValue("file_name",file.getFileName());
        sps.addValue("id",file.getId());
        int num = 0;
        try{
            num = namedParameterJdbcTemplate.update(sql, sps);
        }
        catch(Exception e){
            e.printStackTrace();
        }
        return num;
    }

    @Override
    public int delFile(int id) {
        String sql = "DELETE FROM `file` WHERE id = :id ";
        MapSqlParameterSource sps = new MapSqlParameterSource();
        sps.addValue("id",id);
        int num = 0;
        try{
            num = namedParameterJdbcTemplate.update(sql, sps);
        }catch (Exception e){
            e.printStackTrace();
        }
        return num;
    }

    @Override
    public int delLinkFile(int linkId) {
        String sql = "DELETE FROM `file` WHERE link_id = :link_id ";
        MapSqlParameterSource sps = new MapSqlParameterSource();
        sps.addValue("link_id",linkId);
        int num = 0;
        try{
            num = namedParameterJdbcTemplate.update(sql, sps);
        }catch (Exception e){
            e.printStackTrace();
        }
        return num;
    }

    @Override
    public File getById(int id) {
        String sql = "SELECT * FROM `file` WHERE id = :id ";
        MapSqlParameterSource sps = new MapSqlParameterSource();
        sps.addValue("id",id);
        List<File> list = null;
        try{
            list = namedParameterJdbcTemplate.query(sql, sps,
                    new BeanPropertyRowMapper<>(File.class));
        }catch (Exception e){
            e.printStackTrace();
        }
        if(list != null && list.size()>0) return list.get(0);
        return null;
    }

    @Override
    public List<File> queryPage(String sqlx, int page, int rows) {
        int start = (page - 1) * rows;// 每页的起始下标
        String sql = "SELECT * FROM `file` WHERE 1=1 "+sqlx+" ORDER BY id DESC limit :start,:rows ";
        MapSqlParameterSource sps = new MapSqlParameterSource();
        sps.addValue("start", start);
        sps.addValue("rows", rows);
        List<File> list = namedParameterJdbcTemplate.query(sql, sps,
                new BeanPropertyRowMapper<>(File.class));
        if (list != null && list.size() > 0) return list;
        return null;
    }

    @Override
    public int queryTotal(String sqlx) {
        String sql = "SELECT count(*) FROM`file` where 1=1 "+sqlx;
        MapSqlParameterSource sps = new MapSqlParameterSource();
        return namedParameterJdbcTemplate.queryForInt(sql, sps);
    }

    @Override
    public List<File> queryList(String sqlx) {
        String sql = "SELECT * FROM `file` WHERE 1=1 "+sqlx;
        List<File> list = null;
        try{
            list = namedParameterJdbcTemplate.query(sql, new BeanPropertyRowMapper<>(File.class));
        }catch (Exception e){
            e.printStackTrace();
        }
        if(list != null && list.size()>0) return list;
        return null;
    }
}