请问是什么连接呢

用localhost和127.0.0.1通过php连接mysql均不成功

win10，64位配置了一个apache2.4.17+php7.0.0+mysql5.7.10的环境，改默认端口为8080，测试是否配置成功时编写了两个php代码， 一个用来测试php和apache的文件info.php，用localhost:8080和127.0.0.1:8080均能正常显示信息，如下图  另一个用来测mysql的文件sql.php如下，密码和用户和mysql吻合，但用localhost和127.0.0.1两者均打不开，一直显示正待等待响应，不知道为啥..... <?php $con=mysqli_connect('localhost:8080','root','password'); if(!$con) echo "失败!"; else echo "成功!"; mysqli_close($con); ?>  并且，local host和127.0.0.1有时候都能正常打开，有时候只能某一个正常工作，有时候两个都开不了（都是在apache正常工作时）.....也不知道为啥.... 求大神解惑~十分感谢！ 更多 0

麻烦大神帮忙看下 java.net.SocketException: Connection reset 不是经常出现间歇性出现

错误代码 java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:210) at java.net.SocketInputStream.read(SocketInputStream.java:141) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read(BufferedInputStream.java:265) at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:78) at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106) at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1116) at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1973) at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1735) at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1098) at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398) at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323) at com.example.madame.service.JokeService.jokeGet(JokeService.java:86) at com.example.madame.controller.OneSentencePerDayController.test35(OneSentencePerDayController.java:105) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) 我的代码 public String joke() { try { // String urlTypeName = java.net.URLEncoder.encode(city1, "utf-8"); URL url = new URL("xxx"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5000); conn.setRequestMethod("GET"); if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) { //结果码=200 InputStream is = conn.getInputStream(); //内存流 ， ByteArrayOutputStream boas = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = -1; while (is.available() != 0&&(len = is.read(buffer)) != -1) { boas.write(buffer, 0, len); } System.out.println("GET请求获取的数据:" + boas.toString()); JSONObject jsonObject = JSONObject.fromObject(boas.toString()); String reason = String.valueOf(jsonObject.get("reason")); if ("success".equals(reason)) { Object result = jsonObject.get("result"); JSONArray jsonArray = JSONArray.fromObject(result.toString()); int count = 0; String joke = ""; if (jsonArray.size() > 0) { for (int i = 0; i < jsonArray.size(); i++) { String content = String.valueOf(JSONObject.fromObject(jsonArray.get(i)).get("content")); count += 1; joke += " <tr align=\"center\" style=\"text-indent:2em;\">\n" + " <td >" + count + "." + content + "</td>\n" + " </tr>"; if (count == 3) { break; } } boas.close(); is.close(); return joke; } } } } catch (IOException e) { e.printStackTrace(); } return null; }

谷歌浏览无法访问localhost，却可以访问127.0.0.1，火狐可以正常访问localhost

前提，WEB开发，需要兼容性测试，所以请勿回复更换浏览器之类的答案。 问题描述： 1、谷歌浏览器无法访问localhost； 2、谷歌浏览器却可以访问127.0.0.1； 3、火狐、IE等其他浏览器均可以正常访问localhost； 4、hosts文件中 127.0.0.1和localhost的对应关系正常； 5、没有使用代理设置； 请大神指点是怎么回事，求教，在线等待，谢谢~

各位大神们，谁知道怎样通过three.js导入外部3d模型，然后可以拖动模型，并且模型的一部分不能被单独拖动，这个问题困扰我很多天，现在还是没办法解决，求助各位大神了，万分感谢！

各位大神们，我现在可以导入3d模型，并且这个模型可以拖动，但是一部分模型被单独拖动，其他模型不动，代码如下： ``` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>拖拽控件</title> <style> body { margin: 0; overflow: hidden; } #label { position: absolute; padding: 10px; background: rgba(255, 255, 255, 0.6); line-height: 1; border-radius: 5px; } </style> <script src="js/three.js"></script> <script src="js/jquery-1.9.1.js"></script> <script src="js/Detector.js"></script> <script src="js/TrackballControls.js"></script> <script src="js/dat.gui.min.js"></script> <script src="js/stats.min.js"></script> <script src="js/OBJLoader.js"></script> <script src="js/FBXLoader.js"></script> <script src="js/inflate.min.js"></script> <!--拖拽控件--> <script src="js/DragControls.js"></script> <!--可视化平移控件--> <script src="js/TransformControls.js"></script> </head> <body> <div id="WebGL-output"></div> <div id="Stats-output"></div> <div id="label"></div> <script> var objects=[]; var stats = initStats(); var scene, camera, renderer, controls, light, selectObject; // 场景 function initScene() { scene = new THREE.Scene(); } // 相机 function initCamera() { camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 10000); camera.position.set(0, 400, 600); camera.lookAt(new THREE.Vector3(0, 0, 0)); } // 渲染器 function initRenderer() { if (Detector.webgl) { renderer = new THREE.WebGLRenderer({antialias: true}); } else { renderer = new THREE.CanvasRenderer(); } renderer.setSize(window.innerWidth, window.innerHeight); renderer.setClearColor(0x050505); document.body.appendChild(renderer.domElement); } // 初始化模型 function initContent() { var helper = new THREE.GridHelper(1800, 50, 0x4A4A4A); helper.setColors(0x9370DB); scene.add(helper); var loader = new THREE.OBJLoader(); loader.load( "moder/obj/windmill.obj", function ( group ) { group.position.x=400; group.scale.set(20, 20, 20);//模型放大20倍 //group.scale.color(0x3CB37 group.name="groups" scene.add( group ); objects.push(group); } ); var loader = new THREE.OBJLoader(); loader.load( "moder/obj/low.obj", function ( group ) { group.position.x=-400; group.scale.set(20, 20, 20);//模型放大20倍 //group.scale.color(0x3CB37 group.name="groupss"; scene.add( group ); objects.push(group); } ); var loader = new THREE.FBXLoader(); //Samba Dancing idle_2 loader.load( 'moder/fbx/pipeline.fbx', function ( object ) { //console.log(object); object.scale.set(1,1,1); scene.add( object ); objects.push(object); mixers=object.mixer = new THREE.AnimationMixer( object ); var action = object.mixer.clipAction( object.animations[0]); action.play(); object.traverse( function ( child ) { if ( child.isMesh ) { child.castShadow = true; child.receiveShadow = true; } } ); console.log(object); } ); /*var cubeGeometry = new THREE.BoxGeometry(100, 100, 100); var cubeMaterial = new THREE.MeshLambertMaterial({color: 0x9370DB}); var cube = new THREE.Mesh(cubeGeometry, cubeMaterial); cube.position.x = -600; cube.position.y = 50; cube.name = "cubes"; scene.add(cube); var sphereGeometry = new THREE.SphereGeometry(50, 50, 50, 50); var sphereMaterial = new THREE.MeshLambertMaterial({color: 0x3CB371}); var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial); sphere.position.x = 200; sphere.position.y = 50; sphere.name = "sphere"; // sphere.position.z = 200; scene.add(sphere); var cylinderGeometry = new THREE.CylinderGeometry(50, 50, 100, 100); var cylinderMaterial = new THREE.MeshLambertMaterial({color: 0xCD7054}); var cylinder = new THREE.Mesh(cylinderGeometry, cylinderMaterial); cylinder.position.x = -200; cylinder.position.y = 50; cylinder.name = "cylinder"; scene.add(cylinder);*/ } console.log(objects); // 鼠标双击触发的方法 function onMouseDblclick(event) { // 获取 raycaster 和所有模型相交的数组，其中的元素按照距离排序，越近的越靠前 var intersects = getIntersects(event); // 获取选中最近的 Mesh 对象 if (intersects.length != 0 && intersects[0].object ) { selectObject = intersects[0].object.parent; changeMaterial(selectObject); console.log(changeMaterial); } else { alert("未选中 Mesh!"); } } // 获取与射线相交的对象数组 function getIntersects(event) { event.preventDefault(); console.log("event.clientX:" + event.clientX) console.log("event.clientY:" + event.clientY) // 声明 raycaster 和 mouse 变量 var raycaster = new THREE.Raycaster(); var mouse = new THREE.Vector2(); // 通过鼠标点击位置,计算出 raycaster 所需点的位置,以屏幕为中心点,范围 -1 到 1 mouse.x = (event.clientX / window.innerWidth) * 2 - 1; mouse.y = -(event.clientY / window.innerHeight) * 2 + 1; //通过鼠标点击的位置(二维坐标)和当前相机的矩阵计算出射线位置 raycaster.setFromCamera(mouse, camera); // 获取与射线相交的对象数组，其中的元素按照距离排序，越近的越靠前 var intersects = raycaster.intersectObjects(scene.children); var intersects=intersects.parent; console.log(intersects); //返回选中的对象 return intersects; } // 窗口变动触发的方法 function onWindowResize() { camera.aspect = window.innerWidth / window.innerHeight; camera.updateProjectionMatrix(); renderer.setSize(window.innerWidth, window.innerHeight); } // 键盘按下触发的方法 function onKeyDown(event) { switch (event.keyCode) { case 13: initCamera(); initControls(); break; } } // 改变对象材质属性 function changeMaterial(object) { var material = new THREE.MeshLambertMaterial({ color: 0xffffff * Math.random(), transparent: object.material.transparent ? false : true, opacity: 0.8, }); object.material = material; } // 初始化轨迹球控件 function initControls() { controls = new THREE.TrackballControls(camera, renderer.domElement); // controls.noRotate = true; controls.noPan = true; // 视角最小距离 controls.minDistance = 1000; // 视角最远距离 controls.maxDistance = 5000; } // 添加拖拽控件 function initDragControls() { // 添加平移控件 var transformControls = new THREE.TransformControls(camera, renderer.domElement); scene.add(transformControls); // 过滤不是 Mesh 的物体,例如辅助网格 //var objects = []; /*for (let i = 0; i < scene.children.length; i++) { if (scene.children[i].isMesh) { objects.push(scene.children[i]); } //objects.push(object[i].parent); }*/ // 初始化拖拽控件 var dragControls = new THREE.DragControls(objects, camera, renderer.domElement); // 鼠标略过事件 dragControls.addEventListener('hoveron', function (event) { // 让变换控件对象和选中的对象绑定 transformControls.attach(event.object); }); // 开始拖拽 dragControls.addEventListener('dragstart', function (event) { controls.enabled = false; }); // 拖拽结束 dragControls.addEventListener('dragend', function (event) { controls.enabled = true; }); console.log(objects.length); } // 初始化灯光 function initLight() { light = new THREE.SpotLight(0xffffff); light.position.set(-300, 600, -400); light.castShadow = true; scene.add(light); scene.add(new THREE.AmbientLight(0x5C5C5C)); } // 初始化 dat.GUI function initGui() { // 保存需要修改相关数据的对象 gui = new function () { } // 属性添加到控件 var guiControls = new dat.GUI(); } // 初始化性能插件 function initStats() { var stats = new Stats(); stats.domElement.style.position = 'absolute'; stats.domElement.style.left = '0px'; stats.domElement.style.top = '0px'; document.body.appendChild(stats.domElement); return stats; } // 更新div的位置 function renderDiv(object) { // 获取窗口的一半高度和宽度 let halfWidth = window.innerWidth / 2; let halfHeight = window.innerHeight / 2; // 逆转相机求出二维坐标 let vector = object.position.clone().project(camera); // 修改 div 的位置 $("#label").css({ left: vector.x * halfWidth + halfWidth, top: -vector.y * halfHeight + halfHeight - object.position.y }); // 显示模型信息 //$("#label").text("name:" + object.name); } // 更新控件 function update() { stats.update(); controls.update(); controls.handleResize(); //transformControls.update(); } // 初始化 function init() { initScene(); initCamera(); initRenderer(); initContent(); initLight(); initControls(); initGui(); initDragControls(); // addEventListener('dblclick', onMouseDblclick, false); addEventListener('resize', onWindowResize, false); addEventListener('keydown', onKeyDown, false); } function animate() { if (selectObject != undefined && selectObject != null) { renderDiv(selectObject); } requestAnimationFrame(animate); renderer.render(scene, camera); update(); } init(); animate(); </script> </body> </html> ``` 一部分模型被单独拖动的效果如下：  然后我再修改当鼠标略过事件：  整个模型可以一起被拖动，但是模型混乱：效果图如下：  希望路过的好心人帮帮忙，万分感谢！！！！！！

hbase刚配置好 无法启动 求大神帮助..................

启动不起来 进程也没有,hosts里面的127.0.0.1已经配置了zookeeper能启动 状态里有主从 hadoop能启动 sqoop能导数据 hbase的log日志在下面的回答里

c++编程题，求大神解答............谢谢啦...........

在一个数组中首先判断里的自符是否为回文字符，如果是在按其长度排序，若相同长度的则按ASCII码排序（用c++）求大神解救.......

请教一下，为什么本地开启jekyll s 浏览页面127.0.0.1:4000页面非常慢？

启动jekyll s后，输入127.0.0.1:4000，打开页面非常慢，请问一下大神，这是因为博客中 插件太多的缘故吗，开启的博客有评论插件、down下拉单插件，云标签插件等等，是不是这个原因呢？ 我打开一个插件很少的博客，很快。

流光的问题，连接被远程主机关闭.

连接流光扫描主机 127.0.0.1 端口 3595 ....OK 身份验证 ....OK 设置远程参数 ...OK 启动扫描 ...OK 连接被远程主机关闭. 大神，帮帮忙！！！

Caused by: java.lang.ClassNotFoundException: com.ibatis.common.jdbc.exception.NestedSQLException

``` 2019-12-23 10:31:58,907 ERROR [http-nio-8099-exec-120] action.PleasePayAction (SkyszLoggerLog4j.java:50) - 错误编号: (1577068318907) 请求URL:http://***url**/app/pleasePayAction/getAllAccount.html 异常信息:org.springframework.remoting.RemoteAccessException: Could not deserialize result from HTTP invoker remote service [http:/***url****/service/tssAccount.service]; nested exception is java.lang.ClassNotFoundException: com.ibatis.common.jdbc.exception.NestedSQLException at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.convertHttpInvokerAccessException(HttpInvokerClientInterceptor.java:212) at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:147) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) at com.sun.proxy.$Proxy72.getAcntUseableBal(Unknown Source) at com.skysz.app.pay.action.PleasePayAction.getAccInfo(PleasePayAction.java:1470) at com.skysz.app.pay.action.PleasePayAction.getAllAccount(PleasePayAction.java:1417) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at net.sf.ehcache.constructs.web.filter.GzipFilter.doFilter(GzipFilter.java:79) at net.sf.ehcache.constructs.web.filter.Filter.doFilter(Filter.java:93) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.skysz.framework.plugin.dhtmlx.grid.filter.PageHandlerRequestFilter.doFilter(PageHandlerRequestFilter.java:58) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.skysz.framework.filter.csrf.CSRFFilter.doFilter(CSRFFilter.java:92) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.skysz.framework.filter.sql.AntiSqlInjectionfilter.doFilter(AntiSqlInjectionfilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:167) at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:80) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.skysz.framework.filter.encoding.EncodingFilter.doFilter(EncodingFilter.java:36) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.ClassNotFoundException: com.ibatis.common.jdbc.exception.NestedSQLException at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1309) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1137) at org.springframework.util.ClassUtils.forName(ClassUtils.java:250) at org.springframework.core.ConfigurableObjectInputStream.resolveClass(ConfigurableObjectInputStream.java:75) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:500) at java.lang.Throwable.readObject(Throwable.java:914) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor.doReadRemoteInvocationResult(AbstractHttpInvokerRequestExecutor.java:292) at org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor.readRemoteInvocationResult(AbstractHttpInvokerRequestExecutor.java:243) at org.springframework.remoting.httpinvoker.SimpleHttpInvokerRequestExecutor.doExecuteRequest(SimpleHttpInvokerRequestExecutor.java:96) at org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor.executeRequest(AbstractHttpInvokerRequestExecutor.java:138) at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:194) at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:176) at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:144) ... 89 more ``` ``` ``` 有大神能看出来是什么问题吗 急!!!!感谢

日志提示Context initialization failed，查了很多未果，求大神指导

环境是jdk1.8，tomcat9.0.2 ``` 2019-12-30 19:07:11.813 [RMI TCP Connection(3)-127.0.0.1] ERROR o.s.web.context.ContextLoader - Context initialization failed org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [D:\download\RongXin_PBS-addrbook (2)\RongXin_PBS-addrbook\target\pbs_basic\WEB-INF\classes\com\ccop\core\common\page\Page.class]; nested exception is org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\download\RongXin_PBS-addrbook (2)\RongXin_PBS-addrbook\target\pbs_basic\WEB-INF\classes\com\ccop\core\common\page\Page.class]; nested exception is java.lang.IllegalArgumentException at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:290) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1438) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1428) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:195) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:139) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:108) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180) ~[spring-beans-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:410) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) ~[spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4682) [catalina.jar:9.0.22] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5143) [catalina.jar:9.0.22] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.22] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) [catalina.jar:9.0.22] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) [catalina.jar:9.0.22] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) [catalina.jar:9.0.22] at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728) [catalina.jar:9.0.22] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.22] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_231] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_231] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) [catalina.jar:9.0.22] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) [catalina.jar:9.0.22] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.22] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_231] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_231] at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_231] at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_231] at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) [na:1.8.0_231] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_231] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_231] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_231] Caused by: org.springframework.core.NestedIOException: ASM ClassReader failed to parse class file - probably due to a new Java class file version that isn't supported yet: file [D:\download\RongXin_PBS-addrbook (2)\RongXin_PBS-addrbook\target\pbs_basic\WEB-INF\classes\com\ccop\core\common\page\Page.class]; nested exception is java.lang.IllegalArgumentException at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:56) ~[spring-core-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:80) ~[spring-core-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102) ~[spring-core-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:266) ~[spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] ... 70 common frames omitted Caused by: java.lang.IllegalArgumentException: null at org.springframework.asm.ClassReader.<init>(Unknown Source) ~[spring-core-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.asm.ClassReader.<init>(Unknown Source) ~[spring-core-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.asm.ClassReader.<init>(Unknown Source) ~[spring-core-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:53) ~[spring-core-3.2.8.RELEASE.jar:3.2.8.RELEASE] ... 73 common frames omitted 30-Dec-2019 19:07:11.828 涓ラ噸 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file 2019-12-30 19:07:11.835 [RMI TCP Connection(3)-127.0.0.1] INFO o.s.w.c.s.XmlWebApplicationContext - Closing Root WebApplicationContext: startup date [Mon Dec 30 19:07:11 CST 2019]; root of context hierarchy 30-Dec-2019 19:07:11.828 涓ラ噸 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [/pbs_basic_war_exploded] startup failed due to previous errors 2019-12-30 19:07:11.858 [RMI TCP Connection(3)-127.0.0.1] WARN o.s.w.c.s.XmlWebApplicationContext - Exception thrown from ApplicationListener handling ContextClosedEvent java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: Root WebApplicationContext: startup date [Mon Dec 30 19:07:11 CST 2019]; root of context hierarchy at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:347) [spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334) [spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1049) [spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1010) [spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:586) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:143) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4729) [catalina.jar:9.0.22] at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5393) [catalina.jar:9.0.22] at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257) [catalina.jar:9.0.22] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:187) [catalina.jar:9.0.22] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) [catalina.jar:9.0.22] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) [catalina.jar:9.0.22] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) [catalina.jar:9.0.22] at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728) [catalina.jar:9.0.22] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.22] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_231] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_231] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) [catalina.jar:9.0.22] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) [catalina.jar:9.0.22] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.22] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_231] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_231] at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_231] at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_231] at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) [na:1.8.0_231] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_231] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_231] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_231] 2019-12-30 19:07:11.874 [RMI TCP Connection(3)-127.0.0.1] WARN o.s.w.c.s.XmlWebApplicationContext - Exception thrown from LifecycleProcessor on context close java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date [Mon Dec 30 19:07:11 CST 2019]; root of context hierarchy at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:360) [spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1057) [spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1010) [spring-context-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:586) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:143) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE] at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4729) [catalina.jar:9.0.22] at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5393) [catalina.jar:9.0.22] at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:257) [catalina.jar:9.0.22] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:187) [catalina.jar:9.0.22] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) [catalina.jar:9.0.22] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) [catalina.jar:9.0.22] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) [catalina.jar:9.0.22] at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728) [catalina.jar:9.0.22] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.22] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_231] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_231] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) [catalina.jar:9.0.22] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) [catalina.jar:9.0.22] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.22] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_231] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_231] at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) [na:1.8.0_231] at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) [na:1.8.0_231] at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_231] at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688) [na:1.8.0_231] at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_231] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687) [na:1.8.0_231] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_231] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_231] at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_231] [2019-12-30 07:07:11,889] Artifact pbs_basic:war exploded: Error during artifact deployment. See server log for details. 30-Dec-2019 19:07:14.389 淇℃伅 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory 鎶妛eb 搴旂敤绋嬪簭閮ㄧ讲鍒扮洰褰� [D:\software\apache-tomcat-9.0.22-windows-x64\apache-tomcat-9.0.22\webapps\manager] 30-Dec-2019 19:07:14.419 淇℃伅 [Catalina-utility-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [D:\software\apache-tomcat-9.0.22-windows-x64\apache-tomcat-9.0.22\webapps\manager] has finished in [30] ms ```

为什么我的mysql建表语句varchar类型后面加有排序规则,如图....,请各位大神这是什么情况!

为什么我的mysql建表语句varchar类型后面加有排序规则,如图....,请各位大神这是什么情况!

vb.net获取不到iperf返回的数据 ，求各位大神帮忙。

本人对编程懂的不多，求各位大神帮忙： 我想通过vb.net获取iperf测试返回的数据，但是现在只能获取到dos的内容，执行ping的话，收到的数据是正常的，而iperf的数据收不到，而且还会弹出dos窗口。麻烦帮忙看一下是怎么回事？ 我的代码： ``` Private Sub TS_Start_Click(sender As Object, e As EventArgs) Handles TS_Start.Click Try myProcess.Refresh() newThread = New Thread(AddressOf ThreadExcuteDos) newThread.Start() B_Folder.Enabled = False B_Start.Enabled = False B_Ping.Enabled = False TS_Ping.Enabled = True TS_Start.Enabled = True TS_Stop.Enabled = True T_Folder.ReadOnly = True T_IP.ReadOnly = True T_TestTime.ReadOnly = True Catch ex As Exception MessageBox.Show(ex.Message) End Try End Sub Sub ThreadExcuteDos() ' myProcess.StartInfo.FileName = "cmd.exe" myProcess.StartInfo.UseShellExecute = False myProcess.StartInfo.RedirectStandardInput = True myProcess.StartInfo.RedirectStandardOutput = True myProcess.StartInfo.RedirectStandardError = True myProcess.StartInfo.CreateNoWindow = True AddHandler myProcess.OutputDataReceived, AddressOf DataReceivedHandler myProcess.Start() myProcess.BeginOutputReadLine() myProcess.StandardInput.WriteLine(cmd) myProcess.WaitForExit() myProcess.Close() End Sub Private Sub UpdateResult(ByVal strText As String) TextBox1.AppendText(strText + Environment.NewLine) If IsNothing(strText) Then myProcess.CancelOutputRead() End If End Sub Private Sub DataReceivedHandler(sender As Object, outLine As DataReceivedEventArgs) Me.Invoke(New updateShow(AddressOf UpdateResult), outLine.Data) End Sub ```

javacv1.5.2版本遇到无法加载jniope ncv_videoio.dl

使用 javacv1.5.2，该版本已经封装好所需要的几大类库。 报错如下 ``` Exception in thread "Thread-25" java.lang.UnsatisfiedLinkError: no jniopencv_vid eoio in java.library.path at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867) at java.lang.Runtime.loadLibrary0(Runtime.java:870) at java.lang.System.loadLibrary(System.java:1122) at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1543) at org.bytedeco.javacpp.Loader.load(Loader.java:1192) at org.bytedeco.javacpp.Loader.load(Loader.java:1042) at org.bytedeco.opencv.global.opencv_videoio.<clinit>(opencv_videoio.jav a:20) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at org.bytedeco.javacpp.Loader.load(Loader.java:1109) at org.bytedeco.javacpp.Loader.load(Loader.java:1058) at com.zywl.utils.JavacvUtils.recordPush(JavacvUtils.java:47) at com.zywl.ehome.entity.PreviewServe$FPREVIEW_NEWLINK_CB$1.run(PreviewS erve.java:233) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.UnsatisfiedLinkError: C:\Users\Administrator\.javacpp\cache \opencv-4.1.2-1.5.2-windows-x86_64.jar\org\bytedeco\opencv\windows-x86_64\jniope ncv_videoio.dll: Can't find dependent libraries at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1824) at java.lang.Runtime.load0(Runtime.java:809) at java.lang.System.load(System.java:1086) at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1493) ... 10 more ``` 网上找的答案都是早期的javacv版本，当时javacv没有封装其他的动态链接库。所以说什么javacv跟opencv版本不一致，是个坑。因为1.5.2封装好了，自动在c盘的用户里生成.javacpp 里面含有了相对应的opencv。 目前不知道是怎么回事。在自己的电脑windows10 可以，正式部署的服务器windows servser2008 r2 ，就报如上错误。有没有大神遇到过，应该如何解决。在线等

快来大神 求解答.................

HTTP Status 500 - Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: type Exception report message Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: description The server encountered an internal error that prevented it from fulfilling this request. exception org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: ### Error updating database. Cause: java.sql.SQLException: Field 'links' doesn't have a default value ### The error may involve com.doje.limiguo.news.dao.newsMapper.insertSelective-Inline ### The error occurred while setting parameters ### SQL: insert into t_news ( title, content, imgPath, types ) values ( ?, ?, ?, ? ) ### Cause: java.sql.SQLException: Field 'links' doesn't have a default value ; SQL []; Field 'links' doesn't have a default value; nested exception is java.sql.SQLException: Field 'links' doesn't have a default value org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:973) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863) javax.servlet.http.HttpServlet.service(HttpServlet.java:650) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:731) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)

redis集群搭建的时候出现问题，大神帮忙解决下吧，谢谢了。

redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 到这一步的时候，报错： >>> Creating cluster Connecting to node 127.0.0.1:7000: [ERR] Sorry, can't connect to node 127.0.0.1:7000 不知道怎么回事了。

tomcat应用出现了很多自己连自己tcp，有大神知道什么问题吗？

TCP 127.0.0.1:3313 127.0.0.1:3314 ESTABLISHED 3960 TCP 127.0.0.1:3314 127.0.0.1:3313 ESTABLISHED 3960 TCP 127.0.0.1:3315 127.0.0.1:3316 ESTABLISHED 3960 TCP 127.0.0.1:3316 127.0.0.1:3315 ESTABLISHED 3960 TCP 127.0.0.1:3317 127.0.0.1:3318 ESTABLISHED 3960

android 华为10.0手机不能获取粘贴板内容

在华为10.0的手机上面 只有每次结束了进程在进入app才能获取一次粘贴板内容 其余都不能获取求大神帮忙jie'jue ``` ``` ClipboardManager clipboard = (ClipboardManager) context.getSystemService(context.CLIPBOARD_SERVICE); //无数据时直接返回 if (!clipboard.hasPrimaryClip()) { return;//在10.0手机上面直接就走了这里 } //如果是文本信息 if (clipboard.getPrimaryClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)) { ClipData cdText = clipboard.getPrimaryClip(); ClipData.Item item = cdText.getItemAt(0); //此处是TEXT文本信息 if (item.getText() != null && !item.getText().toString().equals("")) { str = item.getText().toString(); if (Constants.isNumeric(str)){ if (str.length()==4||str.length()==11){ return; } }else { if (str.length()==6 && Constants.isEnglishNo(str)){ return; }else { //传给后台 IntelligenceSraech(str); } } } }

请问各位IDEA的SSM项目，报这个是什么意思，求解

请问各位！ 以前的SSM项目，现在打开提示这个错 是我电脑中Mysql没了吗？ 还是什么错呢？ 真是百思不得其解！ 烦请各位大神帮忙看一看！ 谢谢了 补充： ``` driver=com.mysql.cj.jdbc.Driver #在和mysql传递数据的过程中，使用unicode编码格式，并且字符集设置为utf-8 url=jdbc:mysql://127.0.0.1:3306/appinfodb?characterEncoding=utf-8&serverTimezone=GMT%2B8&useSSL=false username=root password=root <!-- 配置数据源 --> <bean id="dataSoure" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/> <property name="url" value="jdbc:mysql://127.0.0.1:3306/appinfodb?characterEncoding=utf-8&amp;serverTimezone=GMT%2B8&amp;useSSL=false"/> <property name="username" value="root"/> <property name="password" value="root"/> </bean> ``` **cj是mysql8.0特有的方法** 这是我的配置文件以及我的读取配置文件中的值的方法 是有什么错误吗？ 我的数据库名字叫appinfodb 是不是我有什么东西被我误删了呢？

EXTJS页面设计,请各位大神来给看看,谢谢,在线等......

现在要用EXTJS设计一个页面,但是刚接触两天,好多东西都不是很懂,所以页面写不出来.... 请各位大神抽空帮写一个页面... 很着急..因为样式都是一样的.所以出一个我能拿来照着改就行,页面样子如图:  请大神帮忙写一个这个页面..谢谢了..

爬虫福利二 之 妹子图网MM批量下载

爬虫福利一：27报网MM批量下载    点击 看了本文，相信大家对爬虫一定会产生强烈的兴趣，激励自己去学习爬虫，在这里提前祝：大家学有所成！ 目标网站：妹子图网 环境：Python3.x 相关第三方模块：requests、beautifulsoup4 Re：各位在测试时只需要将代码里的变量 path 指定为你当前系统要保存的路径，使用 python xxx.py 或IDE运行即可。

Java学习的正确打开方式

在博主认为，对于入门级学习java的最佳学习方法莫过于视频+博客+书籍+总结，前三者博主将淋漓尽致地挥毫于这篇博客文章中，至于总结在于个人，实际上越到后面你会发现学习的最好方式就是阅读参考官方文档其次就是国内的书籍，博客次之，这又是一个层次了，这里暂时不提后面再谈。博主将为各位入门java保驾护航，各位只管冲鸭！！！上天是公平的，只要不辜负时间，时间自然不会辜负你。 何谓学习？博主所理解的学习，它

程序员必须掌握的核心算法有哪些？

由于我之前一直强调数据结构以及算法学习的重要性，所以就有一些读者经常问我，数据结构与算法应该要学习到哪个程度呢？，说实话，这个问题我不知道要怎么回答你，主要取决于你想学习到哪些程度，不过针对这个问题，我稍微总结一下我学过的算法知识点，以及我觉得值得学习的算法。这些算法与数据结构的学习大多数是零散的，并没有一本把他们全部覆盖的书籍。下面是我觉得值得学习的一些算法以及数据结构，当然，我也会整理一些看过

大学四年自学走来，这些私藏的实用工具/学习网站我贡献出来了

大学四年，看课本是不可能一直看课本的了，对于学习，特别是自学，善于搜索网上的一些资源来辅助，还是非常有必要的，下面我就把这几年私藏的各种资源，网站贡献出来给你们。主要有：电子书搜索、实用工具、在线视频学习网站、非视频学习网站、软件下载、面试/求职必备网站。 注意：文中提到的所有资源，文末我都给你整理好了，你们只管拿去，如果觉得不错，转发、分享就是最大的支持了。 一、PDF搜索网站推荐 对于大部

linux系列之常用运维命令整理笔录

本博客记录工作中需要的linux运维命令，大学时候开始接触linux，会一些基本操作，可是都没有整理起来，加上是做开发，不做运维，有些命令忘记了，所以现在整理成博客，当然vi，文件操作等就不介绍了，慢慢积累一些其它拓展的命令，博客不定时更新 顺便拉下票，我在参加csdn博客之星竞选，欢迎投票支持，每个QQ或者微信每天都可以投5票，扫二维码即可，http://m234140.nofollow.ax.

比特币原理详解

一、什么是比特币 比特币是一种电子货币，是一种基于密码学的货币，在2008年11月1日由中本聪发表比特币白皮书，文中提出了一种去中心化的电子记账系统，我们平时的电子现金是银行来记账，因为银行的背后是国家信用。去中心化电子记账系统是参与者共同记账。比特币可以防止主权危机、信用风险。其好处不多做赘述，这一层面介绍的文章很多，本文主要从更深层的技术原理角度进行介绍。 二、问题引入  假设现有4个人

程序员接私活怎样防止做完了不给钱？

首先跟大家说明一点，我们做 IT 类的外包开发，是非标品开发，所以很有可能在开发过程中会有这样那样的需求修改，而这种需求修改很容易造成扯皮，进而影响到费用支付，甚至出现做完了项目收不到钱的情况。 那么，怎么保证自己的薪酬安全呢？ 我们在开工前，一定要做好一些证据方面的准备（也就是“讨薪”的理论依据），这其中最重要的就是需求文档和验收标准。一定要让需求方提供这两个文档资料作为开发的基础。之后开发

网页实现一个简单的音乐播放器（大佬别看。(⊙﹏⊙)）

今天闲着无事，就想写点东西。然后听了下歌，就打算写个播放器。 于是乎用h5 audio的加上js简单的播放器完工了。 欢迎 改进 留言。 演示地点跳到演示地点 html代码如下`&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;music&lt;/title&gt; &lt;meta charset="utf-8"&gt

Python十大装B语法

Python 是一种代表简单思想的语言，其语法相对简单，很容易上手。不过，如果就此小视 Python 语法的精妙和深邃，那就大错特错了。本文精心筛选了最能展现 Python 语法之精妙的十个知识点，并附上详细的实例代码。如能在实战中融会贯通、灵活使用，必将使代码更为精炼、高效，同时也会极大提升代码B格，使之看上去更老练，读起来更优雅。 1. for - else 什么？不是 if 和 else 才

数据库优化 - SQL优化

前面一篇文章从实例的角度进行数据库优化，通过配置一些参数让数据库性能达到最优。但是一些“不好”的SQL也会导致数据库查询变慢，影响业务流程。本文从SQL角度进行数据库优化，提升SQL运行效率。 判断问题SQL 判断SQL是否有问题时可以通过两个表象进行判断： 系统级别表象 CPU消耗严重 IO等待严重 页面响应时间过长

2019年11月中国大陆编程语言排行榜

2019年11月2日，我统计了某招聘网站，获得有效程序员招聘数据9万条。针对招聘信息，提取编程语言关键字，并统计如下： 编程语言比例 rank pl_ percentage 1 java 33.62% 2 c/c++ 16.42% 3 c_sharp 12.82% 4 javascript 12.31% 5 python 7.93% 6 go 7.25% 7

通俗易懂地给女朋友讲：线程池的内部原理

餐厅的约会 餐盘在灯光的照耀下格外晶莹洁白，女朋友拿起红酒杯轻轻地抿了一小口，对我说：“经常听你说线程池，到底线程池到底是个什么原理？”我楞了一下，心里想女朋友今天是怎么了，怎么突然问出这么专业的问题，但做为一个专业人士在女朋友面前也不能露怯啊，想了一下便说：“我先给你讲讲我前同事老王的故事吧！” 大龄程序员老王 老王是一个已经北漂十多年的程序员，岁数大了，加班加不动了，升迁也无望，于是拿着手里

经典算法（5）杨辉三角

写在前面： 我是 扬帆向海，这个昵称来源于我的名字以及女朋友的名字。我热爱技术、热爱开源、热爱编程。技术是开源的、知识是共享的。 这博客是对自己学习的一点点总结及记录，如果您对 Java、算法 感兴趣，可以关注我的动态，我们一起学习。 用知识改变命运，让我们的家人过上更好的生活。 目录一、杨辉三角的介绍二、杨辉三角的算法思想三、代码实现1.第一种写法2.第二种写法 一、杨辉三角的介绍 百度

腾讯算法面试题：64匹马8个跑道需要多少轮才能选出最快的四匹？

昨天，有网友私信我，说去阿里面试，彻底的被打击到了。问了为什么网上大量使用ThreadLocal的源码都会加上private static？他被难住了，因为他从来都没有考虑过这个问题。无独有偶，今天笔者又发现有网友吐槽了一道腾讯的面试题，我们一起来看看。 腾讯算法面试题：64匹马8个跑道需要多少轮才能选出最快的四匹？ 在互联网职场论坛，一名程序员发帖求助到。二面腾讯，其中一个算法题：64匹

面试官：你连RESTful都不知道我怎么敢要你？

面试官：了解RESTful吗？ 我：听说过。 面试官：那什么是RESTful？ 我：就是用起来很规范，挺好的 面试官：是RESTful挺好的，还是自我感觉挺好的 我：都挺好的。 面试官：… 把门关上。 我：… 要干嘛？先关上再说。 面试官：我说出去把门关上。 我：what ？，夺门而去 文章目录01 前言02 RESTful的来源03 RESTful6大原则1. C-S架构2. 无状态3.统一的接

为啥国人偏爱Mybatis，而老外喜欢Hibernate/JPA呢？

关于SQL和ORM的争论，永远都不会终止，我也一直在思考这个问题。昨天又跟群里的小伙伴进行了一番讨论，感触还是有一些，于是就有了今天这篇文。 声明：本文不会下关于Mybatis和JPA两个持久层框架哪个更好这样的结论。只是摆事实，讲道理，所以，请各位看官勿喷。 一、事件起因 关于Mybatis和JPA孰优孰劣的问题，争论已经很多年了。一直也没有结论，毕竟每个人的喜好和习惯是大不相同的。我也看

SQL-小白最佳入门sql查询一

一 说明 如果是初学者，建议去网上寻找安装Mysql的文章安装，以及使用navicat连接数据库，以后的示例基本是使用mysql数据库管理系统； 二 准备前提 需要建立一张学生表，列分别是id，名称，年龄，学生信息；本示例中文章篇幅原因SQL注释略； 建表语句： CREATE TABLE `student` ( `id` int(11) NOT NULL AUTO_INCREMENT, `

项目中的if else太多了，该怎么重构？

介绍 最近跟着公司的大佬开发了一款IM系统，类似QQ和微信哈，就是聊天软件。我们有一部分业务逻辑是这样的 if (msgType = "文本") { // dosomething } else if(msgType = "图片") { // doshomething } else if(msgType = "视频") { // doshomething } else { // dosho

【图解经典算法题】如何用一行代码解决约瑟夫环问题

约瑟夫环问题算是很经典的题了，估计大家都听说过，然后我就在一次笔试中遇到了，下面我就用 3 种方法来详细讲解一下这道题，最后一种方法学了之后保证让你可以让你装逼。 问题描述：编号为 1-N 的 N 个士兵围坐在一起形成一个圆圈，从编号为 1 的士兵开始依次报数（1，2，3…这样依次报），数到 m 的 士兵会被杀死出列，之后的士兵再从 1 开始报数。直到最后剩下一士兵，求这个士兵的编号。 1、方

致 Python 初学者

文章目录1. 前言2. 明确学习目标，不急于求成，不好高骛远3. 在开始学习 Python 之前，你需要做一些准备2.1 Python 的各种发行版2.2 安装 Python2.3 选择一款趁手的开发工具3. 习惯使用IDLE，这是学习python最好的方式4. 严格遵从编码规范5. 代码的运行、调试5. 模块管理5.1 同时安装了py2/py35.2 使用Anaconda，或者通过IDE来安装模

“狗屁不通文章生成器”登顶GitHub热榜，分分钟写出万字形式主义大作

一、垃圾文字生成器介绍 最近在浏览GitHub的时候，发现了这样一个骨骼清奇的雷人项目，而且热度还特别高。 项目中文名：狗屁不通文章生成器 项目英文名：BullshitGenerator 根据作者的介绍，他是偶尔需要一些中文文字用于GUI开发时测试文本渲染，因此开发了这个废话生成器。但由于生成的废话实在是太过富于哲理，所以最近已经被小伙伴们给玩坏了。 他的文风可能是这样的： 你发现，

程序员：我终于知道post和get的区别

IT界知名的程序员曾说：对于那些月薪三万以下，自称IT工程师的码农们，其实我们从来没有把他们归为我们IT工程师的队伍。他们虽然总是以IT工程师自居，但只是他们一厢情愿罢了。 此话一出，不知激起了多少(码农)程序员的愤怒，却又无可奈何，于是码农问程序员。 码农：你知道get和post请求到底有什么区别？ 程序员：你看这篇就知道了。 码农：你月薪三万了？ 程序员：嗯。 码农：你是怎么做到的? 程序员：

《程序人生》系列-这个程序员只用了20行代码就拿了冠军

你知道的越多，你不知道的越多 点赞再看，养成习惯GitHub上已经开源https://github.com/JavaFamily，有一线大厂面试点脑图，欢迎Star和完善 前言 这一期不算《吊打面试官》系列的，所有没前言我直接开始。 絮叨 本来应该是没有这期的，看过我上期的小伙伴应该是知道的嘛，双十一比较忙嘛，要值班又要去帮忙拍摄年会的视频素材，还得搞个程序员一天的Vlog，还要写BU

加快推动区块链技术和产业创新发展，2019可信区块链峰会在京召开

      11月8日，由中国信息通信研究院、中国通信标准化协会、中国互联网协会、可信区块链推进计划联合主办，科技行者协办的2019可信区块链峰会将在北京悠唐皇冠假日酒店开幕。 　　区块链技术被认为是继蒸汽机、电力、互联网之后，下一代颠覆性的核心技术。如果说蒸汽机释放了人类的生产力，电力解决了人类基本的生活需求，互联网彻底改变了信息传递的方式，区块链作为构造信任的技术有重要的价值。 　　1

程序员把地府后台管理系统做出来了，还有3.0版本！12月7号最新消息：已在开发中有github地址

第一幕：缘起 听说阎王爷要做个生死簿后台管理系统，我们派去了一个程序员…… 996程序员做的梦： 第一场：团队招募 为了应对地府管理危机，阎王打算找“人”开发一套地府后台管理系统，于是就在地府总经办群中发了项目需求。 话说还是中国电信的信号好，地府都是满格，哈哈！！！ 经常会有外行朋友问：看某网站做的不错，功能也简单，你帮忙做一下？ 而这次，面对这样的需求，这个程序员

网易云6亿用户音乐推荐算法

网易云音乐是音乐爱好者的集聚地，云音乐推荐系统致力于通过 AI 算法的落地，实现用户千人千面的个性化推荐，为用户带来不一样的听歌体验。 本次分享重点介绍 AI 算法在音乐推荐中的应用实践，以及在算法落地过程中遇到的挑战和解决方案。 将从如下两个部分展开： AI 算法在音乐推荐中的应用 音乐场景下的 AI 思考 从 2013 年 4 月正式上线至今，网易云音乐平台持续提供着：乐屏社区、UGC

【技巧总结】位运算装逼指南

位算法的效率有多快我就不说，不信你可以去用 10 亿个数据模拟一下，今天给大家讲一讲位运算的一些经典例子。不过，最重要的不是看懂了这些例子就好，而是要在以后多去运用位运算这些技巧，当然，采用位运算，也是可以装逼的，不信，你往下看。我会从最简单的讲起，一道比一道难度递增，不过居然是讲技巧，那么也不会太难，相信你分分钟看懂。 判断奇偶数 判断一个数是基于还是偶数，相信很多人都做过，一般的做法的代码如下

日均350000亿接入量，腾讯TubeMQ性能超过Kafka

整理 | 夕颜出品 | AI科技大本营（ID:rgznai100） 【导读】近日，腾讯开源动作不断，相继开源了分布式消息中间件TubeMQ，基于最主流的 OpenJDK8开发的

8年经验面试官详解 Java 面试秘诀

    作者 | 胡书敏 责编 | 刘静 出品 | CSDN（ID：CSDNnews） 本人目前在一家知名外企担任架构师，而且最近八年来，在多家外企和互联网公司担任Java技术面试官，前后累计面试了有两三百位候选人。在本文里，就将结合本人的面试经验，针对Java初学者、Java初级开发和Java开发，给出若干准备简历和准备面试的建议。   Java程序员准备和投递简历的实

面试官如何考察你的思维方式？

1.两种思维方式在求职面试中，经常会考察这种问题：北京有多少量特斯拉汽车？ 某胡同口的煎饼摊一年能卖出多少个煎饼？ 深圳有多少个产品经理？ 一辆公交车里能装下多少个乒乓球？ 一

相关热词 c# clr dll c# 如何orm c# 固定大小的字符数组 c#框架设计 c# 删除数据库 c# 中文文字 图片转 c# 成员属性 接口 c#如何将程序封装 16进制负数转换 c# c#练手项目