83 lines
2.1 KiB
Java
83 lines
2.1 KiB
Java
package com.dpkj.modules.keypad.util;
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import com.alibaba.fastjson.JSONObject;
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import lombok.extern.slf4j.Slf4j;
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import javax.websocket.*;
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import java.io.IOException;
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import java.net.URI;
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@ClientEndpoint
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@Slf4j
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public class WebSocketClient {
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private Session session;
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private String password = "";
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public WebSocketClient(String uri) {
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try {
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WebSocketContainer container = ContainerProvider.getWebSocketContainer();
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session = container.connectToServer(this, new URI(uri));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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@OnOpen
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public void onOpen(Session session) {
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this.session = session;
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}
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@OnMessage
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public void onMessage(String message) {
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// 解析外层 JSON 对象
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JSONObject outerObj = JSONObject.parseObject(message);
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// 获取 "param" 字段对应的 JSON 对象
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JSONObject paramObj = outerObj.getJSONObject("param");
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// 从 "param" 对象中获取 "Key" 的值
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Integer keyValue = paramObj.getInteger("Key");
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if (keyValue != null) {
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Integer i = parseAsciiToDigit(keyValue);
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if (i != -1) {
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password += i.toString();
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}
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} else {
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log.info("按键事件返回值，未找到 Key 字段或其值为空。");
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}
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}
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@OnClose
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public void onClose(Session session, CloseReason closeReason) {
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}
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public String getPassword() {
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return password;
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}
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public void close() {
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try {
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if (session != null && session.isOpen()) {
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session.close();
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}
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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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public static Integer parseAsciiToDigit(Integer asciiValue) {
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// 检查输入的 ASCII 值是否在 '0' 到 '9' 的范围内
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if (asciiValue >= 48 && asciiValue <= 57) {
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// 将 ASCII 值转换为对应的数字
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return asciiValue - 48;
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} else {
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// 如果输入的 ASCII 值不在 '0' 到 '9' 的范围内，返回 -1 表示无效输入
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return -1;
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}
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}
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}
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