package com.consum.base.core.utils;
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// @formatter:off
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import cn.hutool.core.util.ReflectUtil;
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import com.fasterxml.jackson.databind.DeserializationFeature;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import jakarta.servlet.ServletInputStream;import jakarta.servlet.http.HttpServletRequest;import jakarta.servlet.http.HttpServletResponse;import org.springframework.beans.BeanUtils;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.lang.reflect.Field;
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import java.util.*;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* .-~~~~~~~~~-._ _.-~~~~~~~~~-.
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* __.' @Author ~. .~ 代码无Bug `.__
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* .'// liu.q \./ (秘籍) \\`.
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* .'// [916000612@qq.com] | 欲练神功 引刀自宫 \\`.
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* .'// .-~"""""""~~~~-._ | _,-~~~~"""""""~-. \\`.
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* .'//.-" 2019-04-09 `-. | .-' 10:48 "-.\\`.
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* .'//______.============-.. \ | / ..-============.______\\`.
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* .'______________________________\|/______________________________`.
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*
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* @Description :
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*/
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// @formatter:on
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public class CommonUtil {
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/**
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* @Author : liuq
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* @Date : Create in 2018/7/1 上午1:20
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* @Description : 驼峰转下划线
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*/
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public static String camel2Underline(String line) {
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if (line == null || "".equals(line)) {
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return "";
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}
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line = String.valueOf(line.charAt(0)).toUpperCase().concat(line.substring(1));
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StringBuffer sb = new StringBuffer(512);
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Pattern pattern = Pattern.compile("[A-Z]([a-z\\d]+)?");
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Matcher matcher = pattern.matcher(line);
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while (matcher.find()) {
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String word = matcher.group();
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sb.append(word.toUpperCase());
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sb.append(matcher.end() == line.length() ? "" : "_");
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}
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return sb.toString();
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}
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/*
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* @Author : liu.q [916000612@qq.com]
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*
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* @Date : 2019-04-29 16:45
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*
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* @Description : 下划线转驼峰
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*/
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public static String Underline2camel(String para) {
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StringBuilder result = new StringBuilder();
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String[] a = para.split("_");
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for (String s : a) {
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if (!para.contains("_")) {
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result.append(s);
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continue;
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}
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if (result.length() == 0) {
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result.append(s.toLowerCase());
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} else {
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result.append(s.substring(0, 1).toUpperCase());
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result.append(s.substring(1).toLowerCase());
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}
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}
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return result.toString();
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}
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/**
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* @Author : liu.q
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* @Date : 2019-03-01 09:49
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* @Description : 获取request
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*/
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public static HttpServletRequest getRequest() {
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ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder
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.getRequestAttributes();
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HttpServletRequest request = requestAttributes.getRequest();
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return request;
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}
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/**
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* @Author : liu.q
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* @Date : 2019-03-01 09:49
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* @Description : response
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*/
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public static HttpServletResponse getResponse() {
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ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder
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.getRequestAttributes();
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HttpServletResponse response = requestAttributes.getResponse();
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return response;
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}
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// /**
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// * 获取请求参数
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// *
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// * @return
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// */
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public static Map getParameterMap() {
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// 参数Map
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Map properties = CommonUtil.getRequest().getParameterMap();
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// 返回值Map
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Map returnMap = new HashMap();
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Iterator entries = properties.entrySet().iterator();
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Map.Entry entry;
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String name = "";
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String value = "";
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while (entries.hasNext()) {
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entry = (Map.Entry) entries.next();
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name = (String) entry.getKey();
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Object valueObj = entry.getValue();
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if (null == valueObj) {
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continue;
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} else if (valueObj instanceof String[]) {
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String[] values = (String[]) valueObj;
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for (int i = 0; i < values.length; i++) {
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value = values[i] + ",";
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}
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value = value.substring(0, value.length() - 1);
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} else {
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value = valueObj.toString();
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}
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if ("".equals(value)) {
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continue;
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}
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returnMap.put(name, value);
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}
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// 判断排序asc和desc
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if (returnMap.containsKey("sortOrder") && returnMap.get("sortOrder") != null && returnMap.get("sortOrder") != "") {
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if (!"DESC".equals(convert2Str(returnMap.get("sortOrder")).toUpperCase())
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&& !"ASC".equals(convert2Str(returnMap.get("sortOrder")).toUpperCase())) {
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returnMap.put("sortOrder", "");
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}
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}
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return returnMap;
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}
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private static String convert2Str(Object object) {
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if (object == null) {
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return "";
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}
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if (object instanceof String) {
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return (String) object;
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} else {
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return object.toString();
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}
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}
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private static ObjectMapper mapper = null;
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static {
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mapper = new ObjectMapper();
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mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
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}
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public static <T> T getObjFromReq(Class<T> clazz) {
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T t = null;
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try {
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Map parameterMap = getParameterMap();
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String jsonStr = mapper.writeValueAsString(parameterMap);
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t = mapper.readValue(jsonStr, clazz);
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if (t == null) {
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t = clazz.newInstance();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return t;
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}
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public static <T> T getObjFromReqBody(Class<T> clazz) {
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T t = null;
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try {
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String jsonStr = getRequestBody();
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t = mapper.readValue(jsonStr, clazz);
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if (t == null) {
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return clazz.newInstance();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return t;
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}
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public static String getStringFromInputStream(ServletInputStream stream) throws IOException {
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StringBuilder sb = new StringBuilder();
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BufferedReader reader = null;
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try {
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reader = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
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char[] ch = new char[1024];
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int bytesRead;
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while ((bytesRead = reader.read(ch)) != -1) {
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sb.append(ch, 0, bytesRead);
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}
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} finally {
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if (reader != null) {
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try {
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reader.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return sb.toString();
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}
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/**
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* 获取request body值
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*
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* @param
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* @return
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*/
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private static String getRequestBody() {
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HttpServletRequest request = getRequest();
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try {
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return getStringFromInputStream(request.getInputStream());
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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public static void copyProperties(Object source, Object target) {
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BeanUtils.copyProperties(source, target);
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Class<?> sourceClass = source.getClass();
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// 获取当前类以及所有父类的字段
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while (sourceClass != null) {
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Field[] fields = sourceClass.getDeclaredFields();
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for (Field field : fields) {
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String fieldName = field.getName();
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if (!fieldName.startsWith("isset_")) {
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continue;
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}
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try {
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Object fieldValue = ReflectUtil.getFieldValue(source, field);
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ReflectUtil.setFieldValue(target, field, fieldValue);
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} catch (Exception e) {
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System.out.println(e.getMessage());
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}
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}
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sourceClass = sourceClass.getSuperclass();
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}
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}
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}
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