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103
klp-oa/scaner/pom.xml
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103
klp-oa/scaner/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.example</groupId>
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<artifactId>jar</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<maven.compiler.source>8</maven.compiler.source>
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<maven.compiler.target>8</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-jar-plugin</artifactId>
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<version>3.2.0</version>
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<configuration>
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<archive>
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<manifest>
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<addClasspath>true</addClasspath>
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<mainClass>org.example.Main</mainClass>
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</manifest>
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</archive>
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</configuration>
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</plugin>
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<plugin>
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<artifactId>maven-assembly-plugin</artifactId>
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<version>3.3.0</version>
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<configuration>
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<archive>
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<manifest>
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<mainClass>org.example.Main</mainClass>
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</manifest>
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</archive>
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<descriptorRefs>
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<descriptorRef>jar-with-dependencies</descriptorRef>
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</descriptorRefs>
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</configuration>
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<executions>
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<execution>
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<id>make-assembly</id>
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<phase>package</phase>
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<goals>
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<goal>single</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<!-- Maven依赖 -->
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<dependency>
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<groupId>net.java.dev.jna</groupId>
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<artifactId>jna</artifactId>
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<version>5.17.0</version>
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</dependency>
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<dependency>
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<groupId>net.java.dev.jna</groupId>
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<artifactId>jna-platform</artifactId>
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<version>5.17.0</version>
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</dependency>
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<!-- MQTT dependency removed -->
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<!-- <dependency>-->
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<!-- <groupId>com.klp</groupId>-->
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<!-- <artifactId>mv-code-reader-ctrl-wrapper</artifactId>-->
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<!-- <version>1.0.0</version>-->
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<!-- </dependency>-->
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<dependency>
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<groupId>org.json</groupId>
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<artifactId>json</artifactId>
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<version>20210307</version>
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</dependency>
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<dependency>
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<groupId>org.glassfish.tyrus</groupId>
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<artifactId>tyrus-server</artifactId>
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<version>1.17</version>
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</dependency>
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<dependency>
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<groupId>org.glassfish.tyrus</groupId>
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<artifactId>tyrus-container-grizzly-server</artifactId>
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<version>1.17</version>
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</dependency>
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<dependency>
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<groupId>org.glassfish.tyrus</groupId>
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<artifactId>tyrus-container-servlet</artifactId>
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<version>2.1.1</version>
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</dependency>
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<dependency>
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<groupId>javax.websocket</groupId>
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<artifactId>javax.websocket-api</artifactId>
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<version>1.1</version>
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</dependency>
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</dependencies>
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</project>
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68
klp-oa/scaner/src/main/java/org/example/HttpRequestUtil.java
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68
klp-oa/scaner/src/main/java/org/example/HttpRequestUtil.java
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package org.example;
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import java.io.OutputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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public class HttpRequestUtil {
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/**
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* 向指定URL发送POST请求，发送JSON数据
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* @param urlStr 目标接口地址
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* @param jsonData 发送的JSON字符串
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* @return 响应内容
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* @throws Exception 网络异常
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*/
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public static String postJson(String urlStr, String jsonData) throws Exception {
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URL url = new URL(urlStr);
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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conn.setRequestMethod("POST");
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conn.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
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conn.setDoOutput(true);
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conn.setDoInput(true);
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try (OutputStream os = conn.getOutputStream()) {
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os.write(jsonData.getBytes("UTF-8"));
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}
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int code = conn.getResponseCode();
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if (code == 200) {
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try (java.io.InputStream is = conn.getInputStream()) {
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java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();
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byte[] buffer = new byte[1024];
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int len;
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while ((len = is.read(buffer)) != -1) {
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baos.write(buffer, 0, len);
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}
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return new String(baos.toByteArray(), "UTF-8");
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}
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} else {
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throw new RuntimeException("HTTP请求失败，状态码: " + code);
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}
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}
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/**
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* 向指定URL发送GET请求
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* @param urlStr 目标接口地址
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* @return 响应内容
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* @throws Exception 网络异常
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*/
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public static String get(String urlStr) throws Exception {
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URL url = new URL(urlStr);
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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conn.setRequestMethod("GET");
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conn.setRequestProperty("Accept", "application/json");
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conn.setDoInput(true);
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int code = conn.getResponseCode();
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if (code == 200) {
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try (java.io.InputStream is = conn.getInputStream()) {
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java.io.ByteArrayOutputStream baos = new java.io.ByteArrayOutputStream();
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byte[] buffer = new byte[1024];
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int len;
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while ((len = is.read(buffer)) != -1) {
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baos.write(buffer, 0, len);
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}
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return new String(baos.toByteArray(), "UTF-8");
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}
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} else {
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throw new RuntimeException("HTTP GET请求失败，状态码: " + code);
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}
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}
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}
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59
klp-oa/scaner/src/main/java/org/example/WsServer.java
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59
klp-oa/scaner/src/main/java/org/example/WsServer.java
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package org.example;
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import javax.websocket.OnClose;
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import javax.websocket.OnMessage;
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import javax.websocket.OnOpen;
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import javax.websocket.Session;
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import javax.websocket.server.ServerEndpoint;
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import java.io.IOException;
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import java.util.Set;
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import java.util.concurrent.CopyOnWriteArraySet;
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@ServerEndpoint("/ws")
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public class WsServer {
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private static final Set<Session> sessions = new CopyOnWriteArraySet<>();
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@OnOpen
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public void onOpen(Session session) {
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sessions.add(session);
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System.out.println("WebSocket连接已建立: " + session.getId());
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// 推送所有扫码枪列表给前端（使用修改后的方法名）
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// String deviceListJson = Main.getAllDevicesJson();
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// try {
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// System.out.println("发送设备列表到前端: " + deviceListJson);
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// session.getBasicRemote().sendText(deviceListJson);
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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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@OnMessage
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public void onMessage(String message, Session session) throws IOException {
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System.out.println("收到消息: " + message);
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// 可以根据前端需求，在这里处理命令（比如刷新设备列表）
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if ("refreshDevices".equals(message)) {
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// String deviceListJson = Main.getAllDevicesJson();
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// session.getBasicRemote().sendText(deviceListJson);
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} else {
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session.getBasicRemote().sendText("服务器已收到: " + message);
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}
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}
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@OnClose
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public void onClose(Session session) {
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sessions.remove(session);
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System.out.println("WebSocket连接已关闭: " + session.getId());
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}
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public static void broadcast(String message) {
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for (Session session : sessions) {
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if (session.isOpen()) {
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try {
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session.getBasicRemote().sendText(message);
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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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}
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}
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