pagenow-open-master.zip

package com.pagenow.pagenow_serve.utils; import com.jfinal.plugin.activerecord.Page; import com.jfinal.plugin.activerecord.Record; import com.alibaba.fastjson.JSONObject; import org.apache.commons.io.FileUtils; import org.springframework.http.ResponseEntity; import org.springframework.web.client.RestTemplate; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.File; import java.io.IOException; import java.security.MessageDigest; import java.text.SimpleDateFormat; import java.util.*; public class CommonUtil { public static Record buildRecord(String jsonStr) { Record record = new Record(); JSONObject jsonObj = JSONObject.parseObject(jsonStr); for (String key : jsonObj.keySet()) { record.set(key, jsonObj.get(key)); } // 如果record的ID为空，则为新增数据 if (CommonUtil.isNullOrEmpty(record.get("id"))) { record.set("id", CommonUtil.createUuid()); record.set("create_date", CommonUtil.getCurrentDatetime()); } return record; } /** * JFinal的List<Record>转List<Map> * @param records * @return */ public static List<Map<String, Object>> recordsToList(List<Record> records) { List list = new ArrayList(); if (records.size() > 0) { for (Record record : records) { list.add(record.getColumns()); } } return list; } /** * JFinal的分页数据中的List(Recorc)转List(Map) * @param jfinalPage * @return */ public static List<Map<String, Object>> jfinalPageToList(Page<Record> jfinalPage){ List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); for (Record r : jfinalPage.getList()) { list.add(r.getColumns()); } return list; } public static String createUuid() { String uuid = UUID.randomUUID().toString().replace("-", "").toLowerCase(); return uuid; } /** * 判断一个对象是否为空或空字符 * * @param obj * @return */ public static boolean isNullOrEmpty(Object obj) { return obj == null || "".equals(obj.toString()); } /** * 获取当前日期时间，返回的格式为：yyyy-MM-dd HH:mm:ss * * @return * @throws Exception */ public static String getCurrentDatetime() { SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return df.format(new Date()); } public static Object uploadApk(MultipartFile files, HttpServletRequest request, HttpServletResponse response) { Map<String, Object> resMap = new HashMap<String, Object>(); if (files.getSize() > 1024 * 1024 * 5) { System.out.println("文件过大，请上传5M以内的图片"); resMap.put("code", 500); resMap.put("msg", "文件过大，请上传5M以内的图片"); return resMap; } String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path; Date dt = new Date(); Long time = dt.getTime(); if (files != null) { String realPath = "/Users/jman/Downloads/"; // 获取保存的路径，本地磁盘中的一个文件夹 if (files.isEmpty()) { resMap.put("code", 400); resMap.put("msg", "未选择文件"); } else { // 文件原名称 String originFileName = ""; // 上传文件重命名 String originalFilename = time.toString().substring(time.toString().length() - 8, time.toString().length()); originalFilename = originalFilename.concat("."); originalFilename = originalFilename.concat(files.getOriginalFilename() .toString().substring(files.getOriginalFilename().toString().indexOf(".") + 1)); try { FileUtils.copyInputStreamToFile(files.getInputStream(), new File(realPath, originalFilename)); resMap.put("code", 200); resMap.put("msg", "上传成功"); resMap.put("filename", originalFilename); resMap.put("path", basePath + "/static/image/" + originalFilename); } catch (IOException e) { resMap.put("code", 500); resMap.put("msg", "文件上传失败"); e.printStackTrace(); } } } return resMap; } /** * 使用MD5加密字符串 * @param str * @return */ public static String encodeStrToMD5(String str) { try { MessageDigest md = MessageDigest.getInstance("MD5"); md.update(str.getBytes()); byte b[] = md.digest(); int i; StringBuffer buf = new StringBuffer(""); for (int offset = 0; offset < b.length; offset++) { i = b[offset]; if (i < 0) i += 256; if (i < 16) buf.append("0"); buf.append(Integer.toHexString(i)); } return buf.toString(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return ""; } public static void main(String[] args) { //System.out.println(System.currentTimeMillis()); RestTemplate restTemplate = new RestTemplate(); ResponseEntity<String> entity = restTemplate.getForEntity("http://service.datav.aliyun.com/datav-mock-data/api/ncov.json?name=total" , String.class); System.out.println(entity.getBody()); } }