新增接口

guns-main/src/main/java/cn/stylefeng/guns/zjxl/cnotroller/ZjxlBannerCnotroller.java

@@ -175,4 +175,18 @@ public class ZjxlBannerCnotroller extends BaseController {
        uploadModel.setFullUrl(fastdfs_file_url + objectNode.get("fid").toString().replaceAll("\"", ""));
        return uploadModel;
    }
    @RequestMapping(value = "/findBannerByIsOnLine", method = RequestMethod.GET)
    @ApiOperation(value = "查看banner列表，仅显示已上线的")
    public String findBannerByIsOnLine(
                                 @ApiParam(name = "pageNo", value = "第几页", defaultValue = "1") @RequestParam(value = "pageNo", required = false) Integer pageNo,
                                 @ApiParam(name = "pageSize", value = "分页大小", defaultValue = "10") @RequestParam(value = "pageSize", required = false) Integer pageSize){
        try {
            List<ZjxlBanner> banner = bannerService.findBannerByIsOnLine(pageNo-1,pageSize);
            return write(200,"查询成功","data",PageUtil.getPage(banner,pageNo,pageSize,bannerService.getIsOnLineCount()));
        }catch (Exception e){
            e.printStackTrace();
            return error(-1,"查询失败");
        }
    }
}

guns-main/src/main/java/cn/stylefeng/guns/zjxl/service/ZjxlBannerService.java

@@ -72,4 +72,16 @@ public class ZjxlBannerService extends BaseService {
        return caseRet;
    }
    public List<ZjxlBanner> findBannerByIsOnLine(Integer page,Integer pagesize){
        String sql = "SELECT * FROM `guns-separation`.zjxl_banner WHERE banner_is_line=1";
        sql += " ORDER BY banner_sort,banner_create_time DESC LIMIT "+page+" , "+pagesize+" ";
        List<ZjxlBanner> bannerList = jdbcTemplate.query(sql,new BeanPropertyRowMapper(ZjxlBanner.class));
        return bannerList;
    }
    public int getIsOnLineCount(){
        String sql = "select count(*) from zjxl_banner WHERE banner_is_line=1";
        Integer allCount = jdbcTemplate.queryForObject(sql, Integer.class);;
        return allCount;
    }
}

guns-main/src/main/java/cn/stylefeng/guns/zjxlUtil/DesUtil.java

@@ -0,0 +1,150 @@
package cn.stylefeng.guns.zjxlUtil;
import java.io.IOException;
import java.security.SecureRandom;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
/***
 * @ClassName: DesUtil
 * @Description: des加密解密方法
 * @Auther: shi kejing
 * @Date: 2020/11/20 11:37
 */
public class DesUtil {
    private final static String DES = "DES";
    private final static String ENCODE = "GBK";
    private final static String defaultKey = "abcdefghijklmnopqrstuvwxyz0123456789";
    public static void main(String[] args) throws Exception {
        String data = "123456";
        System.out.println(encrypt(data));
        System.out.println(decrypt(encrypt(data)));
    }
    /**
     * 使用 默认key 加密
     * @return String
     */
    public static String encrypt(String data) throws Exception {
        byte[] bt = encrypt(data.getBytes(ENCODE), defaultKey.getBytes(ENCODE));
        String strs = new BASE64Encoder().encode(bt);
        return strs;
    }
    /**
     * 使用 默认key 解密
     * @return String
     */
    public static String decrypt(String data) throws IOException, Exception {
        if (data == null) {
            return null;
        }
        BASE64Decoder decoder = new BASE64Decoder();
        byte[] buf = decoder.decodeBuffer(data);
        byte[] bt = decrypt(buf, defaultKey.getBytes(ENCODE));
        return new String(bt, ENCODE);
    }
    /**
     * Description 根据键值进行加密
     *
     * @param data
     * @param key
     *            加密键byte数组
     * @return
     * @throws Exception
     */
    public static String encrypt(String data, String key) throws Exception {
        byte[] bt = encrypt(data.getBytes(ENCODE), defaultKey.getBytes(ENCODE));
        String strs = new BASE64Encoder().encode(bt);
        return strs;
    }
    /**
     * Description 根据键值进行解密
     *
     * @param data
     * @param key
     *            加密键byte数组
     * @return
     * @throws IOException
     * @throws Exception
     */
    public static String decrypt(String data, String key) throws IOException,
            Exception {
        if (data == null) {
            return null;
        }
        BASE64Decoder decoder = new BASE64Decoder();
        byte[] buf = decoder.decodeBuffer(data);
        byte[] bt = decrypt(buf, key.getBytes(ENCODE));
        return new String(bt, ENCODE);
    }
    /**
     * Description 根据键值进行加密
     *
     * @param data
     * @param key
     *            加密键byte数组
     * @return
     * @throws Exception
     */
    private static byte[] encrypt(byte[] data, byte[] key) throws Exception {
        // 生成一个可信任的随机数源
        SecureRandom sr = new SecureRandom();
        // 从原始密钥数据创建DESKeySpec对象
        DESKeySpec dks = new DESKeySpec(key);
        // 创建一个密钥工厂，然后用它把DESKeySpec转换成SecretKey对象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
        SecretKey securekey = keyFactory.generateSecret(dks);
        // Cipher对象实际完成加密操作
        Cipher cipher = Cipher.getInstance(DES);
        // 用密钥初始化Cipher对象
        cipher.init(Cipher.ENCRYPT_MODE, securekey, sr);
        return cipher.doFinal(data);
    }
    /**
     * Description 根据键值进行解密
     *
     * @param data
     * @param key
     *            加密键byte数组
     * @return
     * @throws Exception
     */
    private static byte[] decrypt(byte[] data, byte[] key) throws Exception {
        // 生成一个可信任的随机数源
        SecureRandom sr = new SecureRandom();
        // 从原始密钥数据创建DESKeySpec对象
        DESKeySpec dks = new DESKeySpec(key);
        // 创建一个密钥工厂，然后用它把DESKeySpec转换成SecretKey对象
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
        SecretKey securekey = keyFactory.generateSecret(dks);
        // Cipher对象实际完成解密操作
        Cipher cipher = Cipher.getInstance(DES);
        // 用密钥初始化Cipher对象
        cipher.init(Cipher.DECRYPT_MODE, securekey, sr);
        return cipher.doFinal(data);
    }
}