101 lines
3.3 KiB
Java
101 lines
3.3 KiB
Java
package com.ruoyi.schedule.util;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.convert.Convert;
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import java.io.InputStream;
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import java.io.UnsupportedEncodingException;
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import java.net.Socket;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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public class CheckWeight {
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public static String sendWeight(String ip, int por) {
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String zhi = "0";
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try (
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Socket socket = new Socket(ip, por);
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InputStream is = socket.getInputStream();
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) {
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Thread.sleep(1000);
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byte[] bytes = new byte[100];
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int read = is.read(bytes);
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if (read!=-1){
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String[] weightList = byteArrayToCharArray(bytes, "UTF-8").split("\r\n");
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System.out.println(Arrays.toString(weightList));
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String weight = getMostFrequentByHutool(weightList);
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weight = weight.replace("=","").replace("\r","").replace("\n","");
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if (!weight.equals("0000000")) {
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zhi = weight;
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}
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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 zhi;
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}
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/**
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* 用 Hutool 找出数组中出现次数最多的字符串
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* @param strArray 目标字符串数组
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* @return 出现次数最多的字符串（空数组返回 null，多最大值返回第一个）
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*/
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/**
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* 兼容所有 Hutool 版本：找出数组中出现次数最多的字符串
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* @param strArray 目标字符串数组
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* @return 出现次数最多的字符串（空数组返回 null，多最大值返回第一个）
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*/
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public static String getMostFrequentByHutool(String[] strArray) {
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// 1. 空值校验 + 数组转 List
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if (strArray == null || strArray.length == 0) {
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return null;
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}
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List<String> strList = CollUtil.newArrayList(strArray);
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// 2. 用 Hutool 统计频次（所有版本都支持）
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Map<String, Integer> countMap = CollUtil.countMap(strList);
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// 3. 手动遍历找最大值（替代不存在的 getMaxKey 方法）
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String mostFrequent = null;
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int maxCount = 0;
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// 遍历 Map 条目，Hutool 5.x 及以上都支持 entrySet 遍历
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for (Map.Entry<String, Integer> entry : countMap.entrySet()) {
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if (entry.getValue() > maxCount) {
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maxCount = entry.getValue();
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mostFrequent = entry.getKey();
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}
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}
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return mostFrequent;
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}
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/**
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* 将byte数组按指定编码转为char数组
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* @param byteArr 输入的byte数组
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* @param charset 字符编码（如UTF-8、GBK、ASCII）
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* @return 转换后的char数组
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* @throws UnsupportedEncodingException 编码不支持时抛出
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*/
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public static String byteArrayToCharArray(byte[] byteArr, String charset) throws UnsupportedEncodingException {
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if (byteArr == null) {
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return null;
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}
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// 核心：先将byte数组按指定编码转为String，再转为char数组
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return new String(byteArr, charset);
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}
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public static void main(String[] args) {
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CheckWeight checkWeight = new CheckWeight();
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while (true){
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System.out.println(checkWeight.sendWeight("172.19.50.80", 4001));
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}
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}
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}
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