144 lines
4.2 KiB
Java
144 lines
4.2 KiB
Java
/*
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* Copyright (c) 2025. Lorem ipsum dolor sit amet, consectetur adipiscing elit.
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* Morbi non lorem porttitor neque feugiat blandit. Ut vitae ipsum eget quam lacinia accumsan.
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* Etiam sed turpis ac ipsum condimentum fringilla. Maecenas magna.
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* Proin dapibus sapien vel ante. Aliquam erat volutpat. Pellentesque sagittis ligula eget metus.
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* Vestibulum commodo. Ut rhoncus gravida arcu.
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*/
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package com.small.client.Utils;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.http.HttpUtil;
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import cn.hutool.json.JSONObject;
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import cn.hutool.json.JSONUtil;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.logging.log4j.util.Strings;
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import org.apache.tomcat.util.codec.binary.Base64;
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import java.nio.charset.StandardCharsets;
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import java.security.MessageDigest;
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@Slf4j
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public class CommonUtil {
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private final static String apiUrl = "http://4ei8850868ux.vicp.fun";
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public static JSONObject sendPostRequestToSiXun(String urlPath, JSONObject params) {
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String resp = HttpUtil.post(apiUrl + urlPath, params.toString());
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if (StrUtil.isBlank(resp)) {
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return null;
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}
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JSONObject respObj = JSONUtil.parseObj(resp);
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return respObj;
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}
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/**
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* 根据总条数和分页大小，求页数
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*
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* @param total
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* @param pageSize
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* @return
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*/
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public static Integer getPagesCount(Integer total, Integer pageSize) {
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if (total == null || pageSize == null || pageSize <= 0 || total <= 0) {
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return 0;
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}
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int pagesCount = 0;
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pagesCount = total / pageSize;
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if (total % pageSize > 0) {
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// 有余数
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pagesCount++;
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} else {
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if (pagesCount == 0) {
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pagesCount = 1;
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}
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}
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return pagesCount;
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}
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/**
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* 接口是否成功执行返回
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*
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* @param jsonObject
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* @return
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*/
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public static Boolean isSuccess(JSONObject jsonObject) {
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if (jsonObject == null) {
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return false;
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}
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return jsonObject.get("code") != null && jsonObject.getStr("code").equals("0");
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}
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/**
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* 接口是否成功执行返回
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*
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* @param jsonObject
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* @return
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*/
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public static Boolean hasSuccessData(JSONObject jsonObject) {
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if (jsonObject == null) {
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return false;
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}
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return jsonObject.get("code") != null && jsonObject.getStr("code").equals("0") && jsonObject.get("data") != null;
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}
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/**
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* 通过json节点表达式，获取节点json字符串，注：驼峰命名改成下划线命名
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*
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* @param jsonObject
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* @param expression json 节点表达式比如： data.list, msg, code
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* @return
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*/
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public static String toUnderlineJson(JSONObject jsonObject, String expression) {
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return StrUtil.toUnderlineCase(jsonObject.getByPath(expression, String.class));
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}
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/**
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* 生成 md 摘要通用签名（参考了顺丰同城的做法）
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* 参考：https://openic.sf-express.com/#/quickstart
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*
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* @param postData
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* @param appId
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* @param appKey
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* @return
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*/
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public static String generateOpenSign(String postData, String appId, String appKey) {
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try {
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if (StrUtil.isBlank(postData) || StrUtil.isBlank(appId) || StrUtil.isBlank(appKey)) {
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log.error("生成签名时缺少必要参数！");
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return Strings.EMPTY;
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}
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String sb = postData + "&" + appId + "&" + appKey;
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MessageDigest md = MessageDigest.getInstance("MD5");
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byte[] md5 = md.digest(sb.getBytes(StandardCharsets.UTF_8));
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int i;
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StringBuffer buf = new StringBuffer();
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for (byte b : md5) {
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i = b;
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if (i < 0) {
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i += 256;
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}
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if (i < 16) {
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buf.append("0");
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}
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buf.append(Integer.toHexString(i));
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}
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return Base64.encodeBase64String(buf.toString().getBytes(StandardCharsets.UTF_8));
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} catch (Exception e) {
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log.error(e.getMessage());
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return Strings.EMPTY;
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}
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}
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}
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