有效沟通问答-【官方】百战程序员_IT在线教育培训机构

at org.apache.shiro.session.mgt.AbstractValidatingSessionManager.doGetSession(AbstractValidatingSessionManager.java:118) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.session.mgt.AbstractNativeSessionManager.lookupSession(AbstractNativeSessionManager.java:148) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.session.mgt.AbstractNativeSessionManager.getSession(AbstractNativeSessionManager.java:140) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.mgt.SessionsSecurityManager.getSession(SessionsSecurityManager.java:156) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.mgt.DefaultSecurityManager.resolveContextSession(DefaultSecurityManager.java:456) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.mgt.DefaultSecurityManager.resolveSession(DefaultSecurityManager.java:442) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.mgt.DefaultSecurityManager.createSubject(DefaultSecurityManager.java:338) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.subject.Subject$Builder.buildSubject(Subject.java:846) ~[shiro-core-1.3.2.jar:1.3.2]

at org.apache.shiro.web.subject.WebSubject$Builder.buildWebSubject(WebSubject.java:148) ~[shiro-web-1.5.3.jar:1.5.3]

at org.apache.shiro.web.servlet.AbstractShiroFilter.createSubject(AbstractShiroFilter.java:292) ~[shiro-web-1.5.3.jar:1.5.3]

at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:359) ~[shiro-web-1.5.3.jar:1.5.3]

at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) ~[shiro-web-1.5.3.jar:1.5.3]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.5.RELEASE.jar:5.2.5.RELEASE]

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.5.RELEASE.jar:5.2.5.RELEASE]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.5.RELEASE.jar:5.2.5.RELEASE]

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.5.RELEASE.jar:5.2.5.RELEASE]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.5.RELEASE.jar:5.2.5.RELEASE]

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.5.RELEASE.jar:5.2.5.RELEASE]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1594) [tomcat-embed-core-9.0.33.jar:9.0.33]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.33.jar:9.0.33]

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_211]

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_211]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.33.jar:9.0.33]

at java.lang.Thread.run(Thread.java:748) [na:1.8.0_211]

JAVA 全系列/第二十三阶段：分布式医疗云平台/系统管理前后端开发（旧） 29118楼

老师，为什么每次配置了环境变量后，第二天都会没用，要重新配置啊

JAVA 全系列/第一阶段：AI驱动的JAVA编程/变量、数据类型、运算符 29119楼

vue_shop.zip

老师，按照视频操作无法显示自己写的插件，请老师看看哪里出了问题

Python全系列/第九阶段：Flask百战电商后台系统/Flask百战电商后台项目 29120楼

老师为什么我用了3.6版本还是不能运行，能不能帮我解决

Python全系列/第二阶段：Python 深入与提高/GUI编程（隐藏） 29121楼

老师，请问where后面的这个table_name变量名是information_schema.views中定义好的名字吗，表示视图名的意思吗，因为之前条件中的字段名都是表里有的，比如ename,empno

Python全系列/第六阶段：数据库与AI协同技术实战/mysql的使用 29122楼

老师，我在使用zkclient时，修改znode数据后，handleDataChange()该方法无法被触发，删除znode数据时,会触发handleDataDeleted()方法，怎么回事？检查代码也没发现有什么问题。

JAVA 全系列/第十五阶段：Spring Cloud Alibaba技术栈/Zookeeper 29123楼

老师，软件里的xftp好像也不能用

JAVA 全系列/第八阶段：生产环境部署与协同开发/Linux 29124楼

老师视频中事务管理是在登陆方法中配置，而我可以在切面添加数据的方法中（userLoginLog）配置也可以吧？

JAVA 全系列/第六阶段：项目管理与SSM框架/SpringMVC 29125楼

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
    var str1='你好，佛可栏，回家吃饭了，';
    var newStr1=str1.replace(/[佛][可][栏]/g,'张账务');
    var newStr2=str1.replace(/佛可栏/g,'张账务');
    console.log(newStr1);
    console.log(newStr2);
    </script>
</body>
</html>

老师，这两种写法没区别吧

WEB前端全系列/第二阶段：JavaScript编程模块/算法与数据 29126楼

老师我看添加依赖的时候zookeeper的依赖是注释掉的，用这两个java客户端操作zookeeper不需要zookeeper的依赖吗

JAVA 全系列/第十五阶段：Spring Cloud Alibaba技术栈/Zookeeper 29127楼

为什么我点击换页这个下拉菜单就会自动闭合

import React, { Component } from 'react'
import { Modal, Form, Input, Select, Radio, Dropdown, Space,Pagination } from 'antd'
import { icons } from '../../../components'



export default class ModleForm extends Component {
    constructor(props){
        super(props);
        this.state={
            currentIcons:icons.slice(0,10)
        }
    }
    formRef = React.createRef();
    onCancel = () => {
        this.props.dispatch({
            type: "hideModleForm"
        })
    }

    onSave = (values) => {
        console.log(values);
    }
    layout = {
        labelCol: { span: 4 },
        wrapperCol: { span: 20 }
    }
    render() {
        return (
            <Modal visible width={600} title={this.props.title}
                onCancel={this.onCancel}
                onOk={() => this.formRef.current.submit()}
            >
                <Form {...this.layout} ref={this.formRef} onFinish={this.onSave}>
                    <Form.Item label="父菜单">
                        {"无"}
                    </Form.Item>
                    <Form.Item label="菜单名称" name="name" rules={[{ required: true }]}>
                        <Input></Input>
                    </Form.Item>
                    <Form.Item label="访问路径" name="linkUrl" rules={[{ required: true }]}>
                        <Input></Input>
                    </Form.Item>
                    <Form.Item label="打开方式" name="openType" rules={[{ required: true }]}>
                        <Select>
                            <Select.Option value="1">当前窗口</Select.Option>
                            <Select.Option value="2">新窗口</Select.Option>
                        </Select>
                    </Form.Item>
                    <Form.Item label="图标" name="icon" rules={[{ required: true }]}>
                        <Dropdown trigger={['click']}
                            overlayStyle={{background:"#fff",padding:10}}
                            overlay={
                                <>
                                    <Radio.Group>
                                        <Space direction='vertical'>
                                            {this.state.currentIcons.map((ele, index) => {
                                                return (<Radio value={ele.name} >
                                                    {React.createElement(ele.renderFn)}
                                                    <span style={{ margin: 5 }} key={index}>{ele.name}</span>
                                                </Radio>)
                                            })}
                                        </Space>
                                    </Radio.Group>
                                    <div style={{textAlign:"right",padding:10}}>
                                        <Pagination showSizeChanger={false} 
                                        size="small" 
                                        total={icons.length}
                                        onChange={(page,pageSize)=>{
                                            this.setState({
                                                currentIcons:icons.slice(pageSize*(page-1),pageSize*page)
                                            })
                                        }}
                                        ></Pagination>
                                    </div>
                                </>
                            }>
                            <Input></Input>
                        </Dropdown>
                    </Form.Item>
                    <Form.Item label="权限" name="isOfAdmin" rules={[{ required: true }]}>
                        <Radio.Group>
                            <Radio value="1">仅超管可见</Radio>
                            <Radio value="2">不限</Radio>
                        </Radio.Group>
                    </Form.Item>
                    <Form.Item label="菜单名称" name="name" rules={[{ required: true }]}>
                        <Input></Input>
                    </Form.Item>
                </Form>
            </Modal>
        )
    }
}

WEB前端全系列/第十六阶段：React企业级项目/企业级后台管理系统 29128楼

为什么这里id会重复， id不是唯一的吗

WEB前端全系列/第二阶段：JavaScript编程模块/DOM模型 29129楼

$P_AQ4VUSH8_1%IVH`ZZH_{F.png$

求阶乘的呢个方法，static long factorial 前面为什么不用加public 之前定义方法的时候不是加吗

JAVA 全系列/第一阶段：AI驱动的JAVA编程/控制语句、方法、递归算法 29130楼

同学您好