搜索到
33
篇与
的结果
-
宝塔部署War包的SpringBoot 1.调整pom.xml加入war<groupId>com.jam</groupId> <artifactId>childrenmonitor</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> //说明打包成war包 <name>childrenmonitor</name> <description>children Monitor and Control</description>声明tomcat内置服务，不做为外部服务。<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency>2.添加Webapps目录双击下面 【4】 点击OK添加web.xml 这里一定要注意：web.xml的目录需要更改成之前在scr\main下面创建的webapp目录3.重写Application.java继承SpringBootServletInitializer添加下面代码：@Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(ChildrenmonitorApplication.class); }3.1完整Applicaiton.javaimport org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.servlet.support.SpringBootServletInitializer; @SpringBootApplication @MapperScan("com.jam.dao") public class ChildrenmonitorApplication extends SpringBootServletInitializer { @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(ChildrenmonitorApplication.class); } public static void main(String[] args) { SpringApplication.run(ChildrenmonitorApplication.class, args); } }4.部署把war包放入服务器tomcat的webapps目录，自动解压。添加网站，目录选择webapps自动解压的目录在网站设置中开启tomcat -
2020.10 手机号码正则表达式 JavaPattern p = Pattern.compile("^1(3([0-9]\\d|4[1-8])|4[14-9]\\d|5([0125689]\\d|7[1-79])|66\\d|7[2-35-8]\\d|8\\d{2}|9[13589]\\d)\\d{7}$"); Matcher m = p.matcher(mobile);js^1(3([0-9]\d|4[1-8])|4[14-9]\d|5([0125689]\d|7[1-79])|66\d|7[2-35-8]\d|8\d{2}|9[13589]\d)\d{7}$通用正则^1[3-9]\d{9}$原文地址：点击跳转
-
MD5加盐算法 jar包<dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.15</version> </dependency>代码 /** * 生成含有随机盐的密码 */ public static String generate(String password) { Random r = new Random(); StringBuilder sb = new StringBuilder(16); sb.append(r.nextInt(99999999)).append(r.nextInt(99999999)); int len = sb.length(); if (len < 16) { for (int i = 0; i < 16 - len; i++) { sb.append("0"); } } String salt = sb.toString(); password = md5Hex(password + salt); char[] cs = new char[48]; for (int i = 0; i < 48; i += 3) { cs[i] = password.charAt(i / 3 * 2); char c = salt.charAt(i / 3); cs[i + 1] = c; cs[i + 2] = password.charAt(i / 3 * 2 + 1); } return new String(cs); } /** * 校验密码是否正确 */ public static boolean verify(String password, String md5) { char[] cs1 = new char[32]; char[] cs2 = new char[16]; for (int i = 0; i < 48; i += 3) { cs1[i / 3 * 2] = md5.charAt(i); cs1[i / 3 * 2 + 1] = md5.charAt(i + 2); cs2[i / 3] = md5.charAt(i + 1); } String salt = new String(cs2); return md5Hex(password + salt).equals(new String(cs1)); } /** * 获取十六进制字符串形式的MD5摘要 */ public static String md5Hex(String src) { try { MessageDigest md5 = MessageDigest.getInstance("MD5"); byte[] bs = md5.digest(src.getBytes()); return new String(new Hex().encode(bs)); } catch (Exception e) { return null; } } @Test public void test(){ String password = generate("123"); System.out.println(password); System.out.println(verify("123", password)); }
-
-
SSM整合WebSocket 1、首先导包<!--websocket--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-websocket</artifactId> <version>5.2.6.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-messaging</artifactId> <version>5.2.6.RELEASE</version> </dependency>2、WebSocketConfig.javaimport org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; import org.springframework.web.socket.config.annotation.EnableWebSocket; import org.springframework.web.socket.config.annotation.WebSocketConfigurer; import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry; import org.springframework.web.socket.handler.TextWebSocketHandler; @Configuration @EnableWebMvc//这个标注可以不加，如果有加，要extends WebMvcConfigurerAdapter @EnableWebSocket public class WebSocketConfig extends WebMvcConfigurerAdapter implements WebSocketConfigurer { public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { //1.注册WebSocket String websocket_url = "/websocket/socketServer"; //设置websocket的地址 registry.addHandler(webSocketHandler(), websocket_url). //注册Handler addInterceptors(new WebSocketHandshakeInterceptor()); //注册Interceptor //2.注册SockJS，提供SockJS支持(主要是兼容ie8) String sockjs_url = "/sockjs/socketServer"; //设置sockjs的地址 registry.addHandler(webSocketHandler(), sockjs_url). //注册Handler addInterceptors(new WebSocketHandshakeInterceptor()). //注册Interceptor withSockJS(); //支持sockjs协议 } @Bean public TextWebSocketHandler webSocketHandler() { return new WebSocketHandler(); } }3、WebSocketHandler.javaimport com.jam.pojo.WebSocketUser; import org.springframework.web.socket.CloseStatus; import org.springframework.web.socket.TextMessage; import org.springframework.web.socket.WebSocketSession; import org.springframework.web.socket.handler.TextWebSocketHandler; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; public class WebSocketHandler extends TextWebSocketHandler { // 已建立连接的用户 private static final ArrayList<WebSocketSession> users = new ArrayList<WebSocketSession>(); SimpleDateFormat sdf = new SimpleDateFormat("MM-dd HH:mm:ss"); /** * 处理前端发送的文本信息 js调用websocket.send时候，会调用该方法 * * @param session * @param message * @throws Exception */ @Override protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception { String username = (String) session.getAttributes().get("WEBSOCKET_USERNAME"); // 获取提交过来的消息详情 System.out.println("收到用户 " + username + " 的消息:" + message.toString()); // 分割成id和信息内容 String[] messageInfo = message.getPayload().split("@"); if (messageInfo.length != 2) { } else { String target = messageInfo[0]; String content = messageInfo[1]; // 遍历所有已连接用户 for (WebSocketSession user : users) { if (user.getAttributes().get("WEBSOCKET_USERNAME").equals(target)) { //遇到匹配用户 连接正常则发送消息 if (user.isOpen()) { sendMessageToUser(target, new TextMessage("来自\""+username+"\"的消息:"+content+"----"+sdf.format(new Date()))); }else{//若异常则发送失败 sendMessageToUser(username, new TextMessage("对方在线异常,发送失败"+"----"+sdf.format(new Date()))); } return; } } //未找到匹配用户 发送失败 sendMessageToUser(username, new TextMessage("对方暂时不在线"+"----"+sdf.format(new Date()))); } } /** * 当新连接建立的时候，被调用 连接成功时候，会触发页面上onOpen方法 * * @param session * @throws Exception */ @Override public void afterConnectionEstablished(WebSocketSession session) throws Exception { users.add(session); String username = (String) session.getAttributes().get("WEBSOCKET_USERNAME"); System.out.println("用户 " + username + " Connection Established"); session.sendMessage(new TextMessage(username + " connect")); } /** * 当连接关闭时被调用 * * @param session * @param status * @throws Exception */ @Override public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception { String username = (String) session.getAttributes().get("WEBSOCKET_USERNAME"); System.out.println("用户 " + username + " Connection closed. Status: " + status); users.remove(session); } /** * 传输错误时调用 * * @param session * @param exception * @throws Exception */ @Override public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception { String username = (String) session.getAttributes().get("WEBSOCKET_USERNAME"); if (session.isOpen()) { session.close(); } System.out.println("用户: " + username + " websocket connection closed......"); users.remove(session); } /** * 给所有在线用户发送消息 * * @param message */ public void sendMessageToUsers(TextMessage message) { for (WebSocketSession user : users) { try { if (user.isOpen()) { user.sendMessage(message); } } catch (IOException e) { e.printStackTrace(); } } } /** * 在线用户数 * */ public List<WebSocketUser> onlineUsers() { List<WebSocketUser> userList = new ArrayList<WebSocketUser>(); for (WebSocketSession user : users) { String username = (String) user.getAttributes().get("WEBSOCKET_USERNAME"); userList.add(new WebSocketUser(username)); } return userList; } /** * 给某个用户发送消息 * * @param userName * @param message */ public void sendMessageToUser(String userName, TextMessage message) { for (WebSocketSession user : users) { if (user.getAttributes().get("WEBSOCKET_USERNAME").equals(userName)) { try { if (user.isOpen()) { user.sendMessage(message); } } catch (IOException e) { e.printStackTrace(); } break; } } } }4、WebSocketHandshakeInterceptor.javaimport org.springframework.http.server.ServerHttpRequest; import org.springframework.http.server.ServerHttpResponse; import org.springframework.http.server.ServletServerHttpRequest; import org.springframework.web.socket.WebSocketHandler; import org.springframework.web.socket.server.HandshakeInterceptor; import javax.servlet.http.HttpSession; import java.util.Map; public class WebSocketHandshakeInterceptor implements HandshakeInterceptor { @Override public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse serverHttpResponse, WebSocketHandler webSocketHandler, Map<String, Object> attributes) throws Exception { if (request instanceof ServletServerHttpRequest) { ServletServerHttpRequest servletRequest = (ServletServerHttpRequest) request; HttpSession session = servletRequest.getServletRequest().getSession(false); if (session != null) { String userName = (String) session.getAttribute("SESSION_USERNAME"); //这边获得登录时设置的唯一用户标识 if (userName == null) { userName = "未知" + session.getId(); } attributes.put("WEBSOCKET_USERNAME", userName); //将用户标识放入参数列表后，下一步的websocket处理器可以读取这里面的数据 } } return true; } public void afterHandshake(ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse, WebSocketHandler webSocketHandler, Exception e) { System.out.println("After Handshake"); } }5、WebSocketController.javaimport com.alibaba.fastjson.JSON; import com.jam.pojo.WebSocketUser; import com.jam.utils.Retmsg; import com.jam.websocket.WebSocketHandler; import org.springframework.context.annotation.Bean; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.socket.TextMessage; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; @RestController @RequestMapping(value="/websocket",produces = "application/json; charset=utf-8") public class WebSocketController { @Bean // 这个注解会从Spring容器拿出Bean public WebSocketHandler infoHandler() { return new WebSocketHandler(); } WebSocketHandler ws = new WebSocketHandler(); SimpleDateFormat sdf = new SimpleDateFormat("MM/dd HH:mm:ss"); //登录WebSocket保存用户名 @RequestMapping("/login") public String login(String username,HttpServletRequest request) throws Exception { System.out.println(username + "登录"); HttpSession session = request.getSession(); session.setAttribute("SESSION_USERNAME", username); return Retmsg.toJsonMsg("登录成功"); } //推送给所有用户的后台接口 @RequestMapping("/sendMsgToAllUsers") public String sendMsgToAllUsers(String username,String str){ String date = sdf.format(new Date()); str+="----"+date+"[来自 \""+username+"\" 的群发信息]"; ws.sendMessageToUsers(new TextMessage(str)); return Retmsg.toJsonMsg("发送成功"); } //获取当前在线用户名 @RequestMapping("/onlineUsers") public @ResponseBody String onlineUsers(){ List<WebSocketUser> users = ws.onlineUsers(); return JSON.toJSONString(users); } }5、JavaScript+心跳包发送<script type="text/javascript"> var websocket = null; var url = window.location.host; var url2 = window.location.href; var username = url2.split("=")[1]; var website = "http://"+url+"/websocket/sendMsgToAllUsers"; if ('WebSocket' in window) { //Websocket的连接 websocket = new WebSocket("ws://"+url+"/websocket/socketServer");//WebSocket对应的地址 } else if ('MozWebSocket' in window) { //Websocket的连接 websocket = new MozWebSocket("ws://"+url+"/websocket/socketServer");//SockJS对应的地址 } else { //SockJS的连接 websocket = new SockJS("http://"+url+"/sockjs/socketServer"); //SockJS对应的地址 } websocket.onopen = onOpen; websocket.onmessage = onMessage; websocket.onerror = onError; websocket.onclose = onClose; function onOpen(openEvt) { //alert(openEvt.Data); heartCheck.reset().start(); } function onMessage(evt) { $("#content").append(evt.data+"<br>"); // 接收后台发送的数据 heartCheck.reset().start(); } function onError() { } function onClose() { } //给指定用户发消息 function doSend() { if (websocket.readyState == websocket.OPEN) { websocket.send($("#targetName").val()+"@"+$("#inputMsg").val());//调用后台handleTextMessage方法 alert("发送成功!"); } else { alert("连接失败!"+websocket.readyState); } } //给所有用户发消息 function doSend2(){ if (websocket.readyState == websocket.OPEN) { $.get(website,{username:username,str:$("#inputMsg2").val()}); alert("发送成功!"); } else { alert("连接失败!"+websocket.readyState); } } window.close = function () { websocket.onclose(); } var heartCheck = { timeout: 55000, // 9分钟发一次心跳，比server端设置的连接时间稍微小一点，在接近断开的情况下以通信的方式去重置连接时间。 serverTimeoutObj: null, reset: function(){ clearTimeout(this.timeoutObj); clearTimeout(this.serverTimeoutObj); return this; }, start: function(){ var self = this; this.serverTimeoutObj = setInterval(function(){ if(websocket.readyState == 1){ console.log("连接状态，发送消息保持连接"); websocket.send("heartCheck"); heartCheck.reset().start(); // 如果获取到消息，说明连接是正常的，重置心跳检测 }else{ console.log("断开状态，尝试重连"); new WebSocket("ws://"+url+"/websocket/socketServer"); } }, this.timeout) } } </script>
