老师，这个脚手架可不可以选择不安装在c盘，选择其他盘？

老师，这个网络服务名是要访问远程的数据库的标识吗，

老师，请问一下这个原因是什么？和你的不一样。

ERROR 4924 --- [Create-14313325] com.alibaba.druid.pool.DruidDataSource   : create connection SQLException, url: jdbc:mysql://localhost:3306/test?useUnicode=true&characte rEncoding=utf-8&useSSL=false, errorCode 0, state 01S00 java.sql.SQLException: The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support. at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:827) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.ConnectionImpl.

(ConnectionImpl.java:447) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:237) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1570) ~[druid-1.1.12.jar:1.1.12] at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1636) ~[druid-1.1.12.jar:1.1.12] at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2505) ~[druid-1.1.12.jar:1.1.12] Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_131] at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_131] at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:132) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2139) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2163) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1301) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:958) ~[mysql-connector-java-8.0.17.jar:8.0.17] at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:817) ~[mysql-connector-java-8.0.17.jar:8.0.17] ... 6 common frames omitted  

老师，我的可以正常进入addUser页面，但是点击确定时添加不进去，报的上边的错误，应该怎么解决?

老师，新增商品上传商品图片因为flash被谷歌禁止之后现在有解决方案了吗？

输入三角形三个顶点的坐标，若有效则计算三角形的面积；如坐标无效，则给出提
示

 这道题不会 想不出

代码:

mport requests
from bs4 import BeautifulSoup
from fake_useragent import UserAgent
from time import sleep
def get_url(url):
    proxies={"http":"http://61.135.155.82:443"}
    headers={"User-Agent":UserAgent().random}
    # sleep(2)
    resp=requests.get(url,headers=headers,proxies=proxies,timeout=5)
    resp.encoding="utf-8"
    if resp.status_code==200:
        return resp.text
    else:
        return None
def parse_list(html):
    soup=BeautifulSoup(html,'lxml')
    movie_list=["http://maoyan.com{}".format(a.get('href')) for a in soup.select('dl[class="movie-list"] dd>div[class="movie-item film-channel"]>a')]
    return movie_list
def parse_index(html):
    soup=BeautifulSoup(html,'lxml')
    title=soup.select('div[class="movie-brief-container"]>h1')
    # type=soup.select('div[class="movie-brief-container"]>ul>li>a')
    print(title[0].text)
    # print(type[0].text)
def main():
    url="https://maoyan.com/films?showType=3&offset=0"
    html=get_url(url)
    movie_list=parse_list(html)
    for url in movie_list:
        # print(url)
        html=get_url(url)
        parse_index(html)
if __name__=="__main__":
    main()

运行结果:

老师请问一下，为什么我的程序timeout错误，网上说要设置一个timeout时间，我设置了一个timeout=5可是还是报错，请问这是什么原因?麻烦老师帮我看一下

老师这部分的所有方式的软件安装都有问题，，，，，求助11111111

为什么我的UsersMapper.xml 和 UsersExample里面有几百条?

老师我用cmd搭建一直成功不了，我把虚拟环境删干净了又重新安了一遍还是不行

this.getName()和Thread.currentThread().getName()获取的线程名称有什么区别吗？

创建类就类似于封装一个创建对象的函数，用new关键

请问同步执行和异步执行是什么？有什么区别？

使用缓冲流的读写效率是不是自己定义缓冲区要低?

读写同一张图片，不用缓冲区是1746ms，1024长度的缓冲区用时3ms，预定文件长度的缓冲区用时2ms，缓冲流用时20ms。