尝试了很多做法没有成功，难道要卸载重装？ 安装完成后C:\Program Files\MySQL\目录下没有data文件  运行show databases:没有反应  在C:\ProgramData\MySQL\隐藏文件下找到了Data文件和my.ini如图 求救！！ 另外xampp也是显示错误 图片说明](https://img-ask.csdn.net/upload/201704/10/1491834610_219096.png)

在用myeclipse开发bbs项目中由于害怕出现mysql的乱码问题，在my.ini中修改了一些代码： （1）[mysql] default-character-set=latin1代码块中改成了 [mysql] default-character-set=GBK （2）[mysqld] # The TCP/IP Port the MySQL Server will listen on port=3306 #Path to installation directory. All paths are usually resolved relative to this. basedir="C:/Program Files/MySQL/MySQL Server 5.1/" #Path to the database root datadir="C:/ProgramData/MySQL/MySQL Server 5.1/Data/" # The default character set that will be used when a new schema or table is # created and no character set is defined default-character-set=latin1代码块中改成了 [mysqld] # The TCP/IP Port the MySQL Server will listen on port=3306 #Path to installation directory. All paths are usually resolved relative to this. basedir="C:/Program Files/MySQL/MySQL Server 5.1/" #Path to the database root datadir="C:/ProgramData/MySQL/MySQL Server 5.1/Data/" # The default character set that will be used when a new schema or table is # created and no character set is defined default-character-set=utf8 然后打开命令行窗口MySQL Command Line Client输入密码后出现错误，窗口一闪就消失了， 然后启动电脑服务，启动mysql，便出现[color=red][b]错误1067：进程意外终止[/b][/color] [img]http://dl.iteye.com/upload/attachment/228807/0286bd30-65fc-3488-9eee-017376e7121c.jpg[/img] 然后重装了几次mysql，问题依然不能解决。百度也找了很久，试了很多方法，都行不通。 希望各位大侠能帮助小弟脱离苦海。。。 感激不尽！！！ :cry:

Beginning configuration step: Initializing Database Deleting the data directory from a previous (failed) configuration... Attempting to run MySQL Server with --initialize-insecure option... Starting process for MySQL Server 8.0.13... Starting process with command: C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 8.0\my.ini" --console --initialize-insecure=on --lower-case-table-names=1... 2018-11-01T16:28:35.442346Z 0 [Warning] [MY-010915] [Server] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release. 2018-11-01T16:28:35.442449Z 0 [System] [MY-013169] [Server] C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe (mysqld 8.0.13) initializing of server in progress as process 12668 mysqld: File '.\绁炴鑸?bin.index' not found (OS errno 2 - No such file or directory) 2018-11-01T16:28:35.449875Z 0 [ERROR] [MY-013236] [Server] Newly created data directory C:\ProgramData\MySQL\MySQL Server 8.0\Data\ is unusable. You can safely remove it. 2018-11-01T16:28:35.450071Z 0 [ERROR] [MY-010119] [Server] Aborting 2018-11-01T16:28:35.450295Z 0 [System] [MY-010910] [Server] C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe: Shutdown complete (mysqld 8.0.13) MySQL Community Server - GPL. Process for mysqld, with ID 12668, was run successfully and exited with code 1. Failed to start process for MySQL Server 8.0.13. Database initialization failed. Ended configuration step: Initializing Database

Macbook Pro 双系统 win10环境下安装mysql-5.7.17.msi 服务起不来  安装日志： Beginning configuration step: Stopping Server [if necessary] Ended configuration step: Stopping Server [if necessary] Beginning configuration step: Writing configuration file Ended configuration step: Writing configuration file Beginning configuration step: Updating firewall Adding firewall rule for MySQLss on port 3306. Successfully added firewall rule. Ended configuration step: Updating firewall Beginning configuration step: Adjusting Windows service [if necessary] Attempting to grant Network Service require filesystem permissions. Granted permissions. Adding new service New service added Ended configuration step: Adjusting Windows service [if necessary] Beginning configuration step: Initializing Database [if necessary] Deleting Data folder shipped Attempting to run MySQL Server with --Initialize-insecure Running process: C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --initialize-insecure=on --console Waiting for the server stops: C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --initialize-insecure=on --console 2017-04-01T00:30:05.834747Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2017-04-01T00:30:05.834747Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release. 2017-04-01T00:30:06.346757Z 0 [ERROR] InnoDB: Operating system error number 87 in a file operation. 2017-04-01T00:30:06.346757Z 0 [ERROR] InnoDB: File .\ib_logfile101: 'aio write' returned OS error 187. Cannot continue operation 2017-04-01T00:30:06.346757Z 0 [ERROR] InnoDB: Cannot continue operation. The attempt to initialize the database Failed Ended configuration step: Initializing Database [if necessary] Beginning configuration step: Starting Server Starting MySQL a

安装时候到启动服务时候，服务启动不了， Beginning configuration step: Stopping Server [if necessary] Ended configuration step: Stopping Server [if necessary] Beginning configuration step: Writing configuration file Ended configuration step: Writing configuration file Beginning configuration step: Updating firewall Attempting to create firewall rule with command: netsh.exe firewall delete portopening protocol=TCP port=3306 profile=ALL Adding firewall rule for MySQL on port 3306. Attempting to create firewall rule with command: netsh.exe firewall add portopening protocol=TCP port=3306 profile=ALL name=MySQL mode=ENABLE scope=ALL Successfully added firewall rule. Ended configuration step: Updating firewall Beginning configuration step: Adjusting Windows service [if necessary] Attempting to grant Network Service require filesystem permissions. Granted permissions. Adding new service New service added Ended configuration step: Adjusting Windows service [if necessary] Beginning configuration step: Initializing Database [if necessary] Deleting the data directory from a previous (failed) configuration... Attempting to run MySQL Server with --initialize-insecure option... Starting process for MySQL Server 5.7.21... Starting process with command: C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --console --initialize-insecure=on... 2018-02-23T09:51:19.100633Z 0 [Warning] option 'read_buffer_size': unsigned value 0 adjusted to 8192 2018-02-23T09:51:19.100738Z 0 [Warning] option 'read_rnd_buffer_size': unsigned value 0 adjusted to 1 2018-02-23T09:51:19.100841Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2018-02-23T09:51:19.100862Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release. 2018-02-23T09:51:21.155766Z 0 [Warning] InnoDB: New log files created, LSN=45790 2018-02-23T09:51:21.636909Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. mysqld: File '.\鍒樹繆宀?slow.log' not found (Errcode: 2 - No such file or directory) 2018-02-23T09:51:21.886656Z 0 [ERROR] Could not use 鍒樹繆宀?slow.log for logging (error 2 - No such file or directory). Turning logging off for the server process. To turn it on again: fix the cause, then either restart the query logging by using "SET GLOBAL SLOW_QUERY_LOG=ON" or restart the MySQL server. 2018-02-23T09:51:21.892115Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 1a7a0638-187f-11e8-b26e-3417eb5b6dd1. 2018-02-23T09:51:21.951880Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2018-02-23T09:51:21.954100Z 1 [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option. Process for mysqld, with ID 952, was started successfully and exited with code 0. MySQL Server 5.7.21 intialized the database successfully. Ended configuration step: Initializing Database [if necessary] Beginning configuration step: Starting Server Attempting to start service MySQL

Beginning configuration step: Stopping Server [if necessary] Ended configuration step: Stopping Server [if necessary] Beginning configuration step: Writing configuration file Ended configuration step: Writing configuration file Beginning configuration step: Updating firewall Adding firewall rule for MySQL57 on port 3306. Successfully added firewall rule. Ended configuration step: Updating firewall Beginning configuration step: Adjusting Windows service [if necessary] Attempting to grant Network Service require filesystem permissions. Granted permissions. Adding new service New service added Ended configuration step: Adjusting Windows service [if necessary] Beginning configuration step: Initializing Database [if necessary] Deleting Data folder shipped Attempting to run MySQL Server with --Initialize-insecure Running process: C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --initialize-insecure=on --console Waiting for the server stops: C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --initialize-insecure=on --console 2017-09-19T18:14:08.853281Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2017-09-19T18:14:08.853281Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release. 2017-09-19T18:14:14.079270Z 0 [Warning] InnoDB: New log files created, LSN=45790 2017-09-19T18:14:15.654948Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. mysqld: File '.\绁栧帤涔?slow.log' not found (Errcode: 2 - No such file or directory) 2017-09-19T18:14:15.951298Z 0 [ERROR] Could not use 绁栧帤涔?slow.log for logging (error 2 - No such file or directory). Turning logging off for the server process. To turn it on again: fix the cause, then either restart the query logging by using "SET GLOBAL SLOW_QUERY_LOG=ON" or restart the MySQL server. 2017-09-19T18:14:15.966926Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 58c698a0-9d66-11e7-ab89-201a06371a86. 2017-09-19T18:14:16.138545Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2017-09-19T18:14:16.388094Z 1 [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option. Finished initialize database Ended configuration step: Initializing Database [if necessary] Beginning configuration step: Starting Server Starting MySQL as a service

报错 严重: Servlet.service() for servlet [springMVC] in context with path [/travel] threw exception [Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: ### Error updating database. Cause: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\x82' for column 'requestURL' at row 1 ### The error may involve log.saveLog-Inline ### The error occurred while setting parameters ### SQL: INSERT INTO common_clientlog(clientIp,requestURL,timeConsuming,createTime) VALUES (?,?,?,NOW()) ### Cause: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\x82' for column 'requestURL' at row 1 ; uncategorized SQLException for SQL []; SQL state [HY000]; error code [1366]; Incorrect string value: '\xF0\x9F\x98\x82' for column 'requestURL' at row 1; nested exception is java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\x82' for column 'requestURL' at row 1] with root cause java.sql.SQLException: Incorrect string value: '\xF0\x9F\x98\x82' for column 'requestURL' at row 1 at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1094) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4226) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4158) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2615) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2776) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2840) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2082) at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1302) at org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172) at org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172) at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:55) at com.sun.proxy.$Proxy39.execute(Unknown Source) at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:41) at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:66) at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:59) at com.sun.proxy.$Proxy37.update(Unknown Source) at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:45) at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:100) at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:75) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:137) at sun.reflect.GeneratedMethodAccessor50.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358) at com.sun.proxy.$Proxy16.insert(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:240) at com.frontdo.travel.dao.impl.LogDaoImpl.saveObject(LogDaoImpl.java:27) at com.frontdo.travel.dao.impl.LogDaoImpl.saveObject(LogDaoImpl.java:1) at com.frontdo.travel.interceptor.AuthInterceptor.postHandle(AuthInterceptor.java:91) at org.springframework.web.servlet.HandlerExecutionChain.applyPostHandle(HandlerExecutionChain.java:149) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:928) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.frontdo.travel.filter.RequestParameterFilter.doFilter(RequestParameterFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.frontdo.travel.filter.LoginFilter.doFilter(LoginFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) DEBUG[com.frontdo.travel.interceptor.AuthInterceptor]-信息:request /travel/action/sendOrgMessage,prcess time :1ms  #本地环境 DBUrl=jdbc:mysql://localhost:3306/travel? my.ini文件 [client] # pipe # socket=0.0 port=3306 default-character-set = utf8mb4 [mysql] no-beep default-character-set=utf8mb4 [mysqld] # The next three options are mutually exclusive to SERVER_PORT below. # skip-networking # enable-named-pipe # shared-memory # shared-memory-base-name=MYSQL # The Pipe the MySQL Server will use # socket=MYSQL # The TCP/IP Port the MySQL Server will listen on port=3306 # Path to installation directory. All paths are usually resolved relative to this. # basedir="C:/Program Files/MySQL/MySQL Server 5.7/" # Path to the database root datadir=C:/ProgramData/MySQL/MySQL Server 5.7\Data # The default character set that will be used when a new schema or table is # created and no character set is defined character-set-server=utf8mb4 character-set-client-handshake = FALSE collation-server = utf8mb4_unicode_ci init_connect='SET NAMES utf8mb4' # The default storage engine that will be used when create new tables when default-storage-engine=INNODB # Set the SQL mode to strict sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION" # Enable Windows Authentication # plugin-load=authentication_windows.dll # General and Slow logging. log-output=FILE general-log=0 general_log_file="DESKTOP-B37Q65G.log" slow-query-log=1 slow_query_log_file="DESKTOP-B37Q65G-slow.log" long_query_time=10 但就是还报错 ，请问 为什么？

Beginning configuration step: Stopping Server [if necessary] Ended configuration step: Stopping Server [if necessary] Beginning configuration step: Writing configuration file Ended configuration step: Writing configuration file Beginning configuration step: Updating firewall Adding firewall rule for MySQL on port 3306. Successfully added firewall rule. Ended configuration step: Updating firewall Beginning configuration step: Adjusting Windows service [if necessary] Attempting to grant Network Service require filesystem permissions. Granted permissions. Adding new service New service added Ended configuration step: Adjusting Windows service [if necessary] Beginning configuration step: Initializing Database [if necessary] Deleting Data folder shipped Attempting to run MySQL Server with --Initialize-insecure Running process: C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --initialize-insecure=on --console Waiting for the server stops: C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld.exe --defaults-file="C:\ProgramData\MySQL\MySQL Server 5.7\my.ini" --initialize-insecure=on --console 2018-11-28T12:11:16.375762Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2018-11-28T12:11:16.375762Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release. 2018-11-28T12:11:17.263963Z 0 [Warning] InnoDB: New log files created, LSN=45790 2018-11-28T12:11:17.400637Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. mysqld: File '.\ZHANG浠欏効妫?slow.log' not found (Errcode: 2 - No such file or directory) 2018-11-28T12:11:17.474952Z 0 [ERROR] Could not use ZHANG浠欏効妫?slow.log for logging (error 2 - No such file or directory). Turning logging off for the server process. To turn it on again: fix the cause, then either restart the query logging by using "SET GLOBAL SLOW_QUERY_LOG=ON" or restart the MySQL server. 2018-11-28T12:11:17.502827Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: b57c99e4-f306-11e8-871f-2c600cb8cb6f. 2018-11-28T12:11:17.510888Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2018-11-28T12:11:17.510888Z 1 [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option. Finished initialize database Ended configuration step: Initializing Database [if necessary] Beginning configuration step: Starting Server Starting MySQL as a service 提问：我之前电脑装过MySQL ，系统还原过一次，然后卸载了，注册表，服务全都删了，有哪位大神知道怎么解决？ 才能顺利安装

求助大神！ 我在用pyinstaller 将调用了psychopy扩展包里的函数的.py文件生成为可执行文件时，生成的.exe文件显示：ImportError: DLL load failed: 找不到指定的模块。 我在Python3.6的环境下，手动安装的psychopy-1.90.1扩展包。 待生成的.py文件如下：  在生成exe的时候考虑到了第三方扩展包的问题，在cmd 的D:\AA>路径下输入: pyinstaller -F -p D:\python3\psychopy; AA4.0.py 生成的.exe文件在执行时出现如下报错： D:\AA>dist\AA4.0 [1 2 3 4 5] Hello ward Enter [6 0 5 0 1 3 5 4 8 7] Traceback (most recent call last): File "AA4.0.py", line 24, in <module> from psychopy import visual File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "psychopy\visual\__init__.py", line 22, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "psychopy\visual\basevisual.py", line 42, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "psychopy\tools\monitorunittools.py", line 15, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "psychopy\monitors\__init__.py", line 10, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "psychopy\monitors\calibTools.py", line 36, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "site-packages\scipy\optimize\__init__.py", line 270, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "site-packages\scipy\optimize\optimize.py", line 37, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 631, in exec_module exec(bytecode, module.__dict__) File "site-packages\scipy\optimize\linesearch.py", line 18, in <module> File "d:\python3\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 714, in load_module module = loader.load_module(fullname) ImportError: DLL load failed: 找不到指定的模块。 [62380] Failed to execute script AA4.0 感觉是pyinstaller没有把psychopy相关的模块打包进去，因为AA4.0.py中前一半不需要调用psychopy函数的程序能够在.exe中运行，但是后一半需要调用psychopy扩展包里面的函数的程序就无法运行了。 我应该怎么查是哪里出现问题的呢？

<div class="post-text" itemprop="text"> <p>We are facing problem of high cpu usage for mysql process (almost 100%). Here is the information related to server</p> <ol> <li>Server Info: Windows Server 2008 R2 Datacenter Edition Service Pack 1 i586 </li> <li>PHP Running on: Microsoft-IIS/7.5</li> <li>PHP version: 5.3.28</li> <li>MySql Server version: 5.5.16 - MySQL Community Server (GPL)</li> </ol> <p>We are also adding code of my.ini file - configuration file of mysql</p> <pre><code> # MySQL Server Instance Configuration File # ---------------------------------------------------------------------- # Generated by the MySQL Server Instance Configuration Wizard # # # Installation Instructions # ---------------------------------------------------------------------- # # On Linux you can copy this file to /etc/my.cnf to set global options, # mysql-data-dir/my.cnf to set server-specific options # (@localstatedir@ for this installation) or to # ~/.my.cnf to set user-specific options. # # On Windows you should keep this file in the installation directory # of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To # make sure the server reads the config file use the startup option # "--defaults-file". # # To run run the server from the command line, execute this in a # command line shell, e.g. # mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini" # # To install the server as a Windows service manually, execute this in a # command line shell, e.g. # mysqld --install MySQLXY --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini" # # And then execute this in a command line shell to start the server, e.g. # net start MySQLXY # # # Guildlines for editing this file # ---------------------------------------------------------------------- # # In this file, you can use all long options that the program supports. # If you want to know the options a program supports, start the program # with the "--help" option. # # More detailed information about the individual options can also be # found in the manual. # # # CLIENT SECTION # ---------------------------------------------------------------------- # # The following options will be read by MySQL client applications. # Note that only client applications shipped by MySQL are guaranteed # to read this section. If you want your own MySQL client program to # honor these values, you need to specify it as an option during the # MySQL client library initialization. # [client] port=3306 [mysql] default-character-set=utf8 # SERVER SECTION # ---------------------------------------------------------------------- # # The following options will be read by the MySQL Server. Make sure that # you have installed the server correctly (see above) so it reads this # file. # [mysqld] # The TCP/IP Port the MySQL Server will listen on port=3306 #Path to installation directory. All paths are usually resolved relative to this. basedir="C:/Program Files/MySQL/MySQL Server 5.5/" #Path to the database root datadir="C:/ProgramData/MySQL/MySQL Server 5.5/Data/" # The default character set that will be used when a new schema or table is # created and no character set is defined character-set-server=utf8 # The default storage engine that will be used when create new tables when default-storage-engine=INNODB # Set the SQL mode to strict sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION" # The maximum amount of concurrent sessions the MySQL server will # allow. One of these connections will be reserved for a user with # SUPER privileges to allow the administrator to login even if the # connection limit has been reached. max_connections=100 # Query cache is used to cache SELECT results and later return them # without actual executing the same query once again. Having the query # cache enabled may result in significant speed improvements, if your # have a lot of identical queries and rarely changing tables. See the # "Qcache_lowmem_prunes" status variable to check if the current value # is high enough for your load. # Note: In case your tables change very often or if your queries are # textually different every time, the query cache may result in a # slowdown instead of a performance improvement. query_cache_size=0 # The number of open tables for all threads. Increasing this value # increases the number of file descriptors that mysqld requires. # Therefore you have to make sure to set the amount of open files # allowed to at least 4096 in the variable "open-files-limit" in # section [mysqld_safe] table_cache=256 # Maximum size for internal (in-memory) temporary tables. If a table # grows larger than this value, it is automatically converted to disk # based table This limitation is for a single table. There can be many # of them. tmp_table_size=205M # How many threads we should keep in a cache for reuse. When a client # disconnects, the client's threads are put in the cache if there aren't # more than thread_cache_size threads from before. This greatly reduces # the amount of thread creations needed if you have a lot of new # connections. (Normally this doesn't give a notable performance # improvement if you have a good thread implementation.) thread_cache_size=8 #*** MyISAM Specific options # The maximum size of the temporary file MySQL is allowed to use while # recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE. # If the file-size would be bigger than this, the index will be created # through the key cache (which is slower). myisam_max_sort_file_size=100G # If the temporary file used for fast index creation would be bigger # than using the key cache by the amount specified here, then prefer the # key cache method. This is mainly used to force long character keys in # large tables to use the slower key cache method to create the index. myisam_sort_buffer_size=410M # Size of the Key Buffer, used to cache index blocks for MyISAM tables. # Do not set it larger than 30% of your available memory, as some memory # is also required by the OS to cache rows. Even if you're not using # MyISAM tables, you should still set it to 8-64M as it will also be # used for internal temporary disk tables. key_buffer_size=354M # Size of the buffer used for doing full table scans of MyISAM tables. # Allocated per thread, if a full scan is needed. read_buffer_size=64K read_rnd_buffer_size=256K # This buffer is allocated when MySQL needs to rebuild the index in # REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE # into an empty table. It is allocated per thread so be careful with # large settings. sort_buffer_size=256K #*** INNODB Specific options *** # Use this option if you have a MySQL server with InnoDB support enabled # but you do not plan to use it. This will save memory and disk space # and speed up some things. #skip-innodb # Additional memory pool that is used by InnoDB to store metadata # information. If InnoDB requires more memory for this purpose it will # start to allocate it from the OS. As this is fast enough on most # recent operating systems, you normally do not need to change this # value. SHOW INNODB STATUS will display the current amount used. innodb_additional_mem_pool_size=15M # If set to 1, InnoDB will flush (fsync) the transaction logs to the # disk at each commit, which offers full ACID behavior. If you are # willing to compromise this safety, and you are running small # transactions, you may set this to 0 or 2 to reduce disk I/O to the # logs. Value 0 means that the log is only written to the log file and # the log file flushed to disk approximately once per second. Value 2 # means the log is written to the log file at each commit, but the log # file is only flushed to disk approximately once per second. innodb_flush_log_at_trx_commit=1 # The size of the buffer InnoDB uses for buffering log data. As soon as # it is full, InnoDB will have to flush it to disk. As it is flushed # once per second anyway, it does not make sense to have it very large # (even with long transactions). innodb_log_buffer_size=7M # InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and # row data. The bigger you set this the less disk I/O is needed to # access data in tables. On a dedicated database server you may set this # parameter up to 80% of the machine physical memory size. Do not set it # too large, though, because competition of the physical memory may # cause paging in the operating system. Note that on 32bit systems you # might be limited to 2-3.5G of user level memory per process, so do not # set it too high. innodb_buffer_pool_size=686M # Size of each log file in a log group. You should set the combined size # of log files to about 25%-100% of your buffer pool size to avoid # unneeded buffer pool flush activity on log file overwrite. However, # note that a larger logfile size will increase the time needed for the # recovery process. innodb_log_file_size=100M # Number of threads allowed inside the InnoDB kernel. The optimal value # depends highly on the application, hardware as well as the OS # scheduler properties. A too high value may lead to thread thrashing. innodb_thread_concurrency=8 </code></pre> <p>And this is the code that we have used in our script to connect with mysql:</p> <pre><code>public function MySqlConnect() { static $MySqli; if (!isset($MySqli)) { $MySqli = @new mysqli($this-&gt;DbHost, $this-&gt;DbUser, $this-&gt;Dbpassword, $this-&gt;Db); } return $MySqli; } </code></pre> <p>Please help us to understand what is wrong with the my.ini file or connection script which is causing 100% cpu usage for mysql or is there something different that we need to change.</p> <p>Thanks.</p> </div>

在cmd中创建了一个新的数据库，显示成功  但在数据库data文件夹中却没有出现这个数据库的文件，而是这样的两个文件，请问是哪里出错了？ 

用conda安装python-graphviz时报错：CondaError: Cannot link a source that does not exist. C:\ProgramData\Anaconda3\Scripts\conda.exe 代码片段如下 ``` pip-19.1.1-py3 100% |###############################| Time: 0:00:03 590.55 kB/s ERROR conda.core.link:_execute_actions(337): An error occurred while installing package 'defaults::tqdm-4.32.1-py_0'. CondaError: Cannot link a source that does not exist. C:\ProgramData\Anaconda3\Scripts\conda.exe Attempting to roll back. CondaError: Cannot link a source that does not exist. C:\ProgramData\Anaconda3\Scripts\conda.exe ``` 求助如何解决

mex -setup 错误使用 mex 未找到支持的编译器或 SDK。您可以安装免费提供的 MinGW-w64 C/C++ 编译器；请参阅安装 MinGW-w64 编译器。有关更多选项，请访问 http://www.mathworks.com/support/compilers/R2016b/win64.html。 >> uiopen('C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Visual Studio 2015.lnk',1) >> mex -setup 错误使用 mex 未找到支持的编译器或 SDK。您可以安装免费提供的 MinGW-w64 C/C++ 编译器；请参阅安装 MinGW-w64 编译器。有关更多选项，请访问 http://www.mathworks.com/support/compilers/R2016b/win64.html。 使用了多种方法都不可以，确定这两个软件兼容，在别人电脑上可以找到。

win7 x64系统，单独双击执行cmd或bat批处理文件是正常的。命令如下： copy /y OEMLogo.bmp C:\Windows\System32 copy /y "user.bmp" "C:\ProgramData\Microsoft\User Account Pictures" reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OEMInformation" /v "Manufacturer" /t reg_sz /d "测试1" /f reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OEMInformation" /v "Model" /t reg_sz /d "测试2" /f reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OEMInformation" /v "Logo" /t reg_sz /d "OEMLogo.bmp" /f reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OEMInformation" /v "SupportURL" /t reg_sz /d "http://147.*.*.*/" /f pause 程序调用运行时，C:\Program Files (x86)目录确实有相应的图片。

 安错版本了这个卸不掉别的就安不上注册表什么的都会删，这个怎么办 用电脑管家也卸载不掉

从外部导入sql表其中有近5万条记录，执行近2万条后提示Not enough memory, application terminated！然后mysql小海豚自己退出。 而选中剩余记录接着导入仍可插入表中 想问一下各位大神，是存在什么缓存问题吗 另外mysql小海豚可以直接导入sql文件吗，而不是选中整个文件内容执行其所有sql语句，目前，一直都是执行它的sql语句，速度有点慢，而且出现了以上问题 求助大神指导

<div class="post-text" itemprop="text"> <p>I am using MySQL in localhost as a "query tool" for performing statistics in R, that is, everytime I run a R script, I create a new database (A), create a new table (B), import the data into B, submit a query to get what I need, and then I drop B and drop A.</p> <p>It's working fine for me, but I realize that the ibdata file size is increasing rapidly, I stored nothing in MySQL, but the ibdata1 file already exceeded 100 MB.</p> <p>I am using more or less default MySQL setting for the setup, is there a way for I can automatically shrink/purge the ibdata1 file after a fixed period of time?</p> </div> <p>转载于:https://stackoverflow.com/questions/3456159/how-to-shrink-purge-ibdata1-file-in-mysql</p>

七月 25, 2017 5:33:54 下午 org.apache.tomcat.util.digester.SetPropertiesRule begin 警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:1' did not find a matching property. 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server version: Apache Tomcat/9.0.0.M21 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server built: May 4 2017 22:42:36 UTC 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server number: 9.0.0.0 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: OS Name: Windows 10 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: OS Version: 10.0 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Architecture: x86 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Java Home: C:\Program Files\Java\jre1.8.0_131 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: JVM Version: 1.8.0_131-b11 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: JVM Vendor: Oracle Corporation 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: CATALINA_BASE: E:\Java 项目\.metadata\.plugins\org.eclipse.wst.server.core\tmp0 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: CATALINA_HOME: F:\java web\apache-tomcat-9.0.0.M21 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dcatalina.base=E:\Java 项目\.metadata\.plugins\org.eclipse.wst.server.core\tmp0 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dcatalina.home=F:\java web\apache-tomcat-9.0.0.M21 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dwtp.deploy=E:\Java 项目\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Djava.endorsed.dirs=F:\java web\apache-tomcat-9.0.0.M21\endorsed 七月 25, 2017 5:33:54 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dfile.encoding=UTF-8 七月 25, 2017 5:33:54 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent 信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jre1.8.0_131\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre1.8.0_131/bin/client;C:/Program Files/Java/jre1.8.0_131/bin;C:/Program Files/Java/jre1.8.0_131/lib/i386;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\OpenCL SDK\3.0\bin\x86;C:\Program Files\Windows Kits\8.1\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SDKs\TypeScript\1.0\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\MySQL\MySQL Server 5.7\bin;C:\Program Files\Java\jdk1.8.0_131\bin;C:\Program Files\Java\jdk1.8.0_131\jre\bin;F:\eclipse;;.] 七月 25, 2017 5:33:54 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-nio-8181"] 七月 25, 2017 5:33:55 下午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector 信息: Using a shared selector for servlet write/read 七月 25, 2017 5:33:55 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["ajp-nio-8009"] 七月 25, 2017 5:33:55 下午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector 信息: Using a shared selector for servlet write/read 七月 25, 2017 5:33:55 下午 org.apache.catalina.startup.Catalina load 信息: Initialization processed in 1874 ms 七月 25, 2017 5:33:55 下午 org.apache.catalina.core.StandardService startInternal 信息: Starting service [Catalina] 七月 25, 2017 5:33:55 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/9.0.0.M21 七月 25, 2017 5:33:55 下午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["http-nio-8181"] 七月 25, 2017 5:33:55 下午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["ajp-nio-8009"] 七月 25, 2017 5:33:55 下午 org.apache.catalina.startup.Catalina start 信息: Server startup in 920 ms java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1275) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1109) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:123) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:60) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.apache.jsp.AddBook_jsp._jspService(AddBook_jsp.java:137) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329) 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:53) 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:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) 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:498) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1366) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source)

<div class="post-text" itemprop="text"> <p>I have an Ant build script that is trying to execute <code>Composer install</code> but I get this error when executed through Jenkins:</p> <pre><code> [exec] Composer could not find the config file: C:\ProgramData\ComposerSetup\bin [exec] To initialize a project, please create a composer.json file as described in the https://getcomposer.org/ "Getting Started" section [exec] Result: 1 [echo] composer update complete </code></pre> <p>Here is the target from Ant:</p> <pre><code>&lt;target name="self-update" if="composer.self-update" unless="composer.installed" description="Self-update Composer"&gt; &lt;echo message="Self-updating composer" level="debug"/&gt; &lt;exec executable="${composer.phar}"&gt; &lt;arg value="self-update" /&gt; &lt;arg value="--quiet" /&gt; &lt;arg value="--no-interaction" /&gt; &lt;/exec&gt; &lt;echo message="composer self-update complete" level="debug"/&gt; &lt;/target&gt; </code></pre> <p>However, this works fine when running the Ant build locally.</p> <p>Some people say to delete the environment variables that the composer installer sets; however it does not seem to change anything.</p> </div>

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、电子书搜索 对于大部分程序员...

今年，我也32了 ，为了不给大家误导，咨询了猎头、圈内好友，以及年过35岁的几位老程序员……舍了老脸去揭人家伤疤……希望能给大家以帮助，记得帮我点赞哦。 目录： 你以为的人生 一次又一次的伤害 猎头界的真相 如何应对互联网行业的「中年危机」 一、你以为的人生 刚入行时，拿着傲人的工资，想着好好干，以为我们的人生是这样的： 等真到了那一天，你会发现，你的人生很可能是这样的： ...

程序员在一个周末的时间，得了重病，差点当场去世，还好及时挽救回来了。

昨天早上通过远程的方式 review 了两名新来同事的代码，大部分代码都写得很漂亮，严谨的同时注释也很到位，这令我非常满意。但当我看到他们当中有一个人写的 switch 语句时，还是忍不住破口大骂：“我擦，小王，你丫写的 switch 语句也太老土了吧！” 来看看小王写的代码吧，看完不要骂我装逼啊。 private static String createPlayer(PlayerTypes p...

互联网公司工作，很难避免不和黑客们打交道，我呆过的两家互联网公司，几乎每月每天每分钟都有黑客在公司网站上扫描。有的是寻找 Sql 注入的缺口，有的是寻找线上服务器可能存在的漏洞，大部分都...

“亚马逊丛林里的蝴蝶扇动几下翅膀就可能引起两周后美国德州的一次飓风……” 这句人人皆知的话最初用来描述非线性系统中微小参数的变化所引起的系统极大变化。 而在更长的时间尺度内，我们所生活的这个世界就是这样一个异常复杂的非线性系统…… 水泥、穹顶、透视——关于时间与技艺的蝴蝶效应 公元前3000年，古埃及人将尼罗河中挖出的泥浆与纳特龙盐湖中的矿物盐混合，再掺入煅烧石灰石制成的石灰，由此得来了人...

loonggg读完需要3分钟速读仅需 1 分钟大家好，我是你们的校长。我之前讲过，这年头，只要肯动脑，肯行动，程序员凭借自己的技术，赚钱的方式还是有很多种的。仅仅靠在公司出卖自己的劳动时...

最近有个老铁，告诉我说，上班一个月，后悔当初着急入职现在公司了。他之前在美图做手机研发，今年美图那边今年也有一波组织优化调整，他是其中一个，在协商离职后，当时捉急找工作上班，因为有房贷供着，不能没有收入来源。所以匆忙选了一家公司，实际上是一个大型外包公司，主要派遣给其他手机厂商做外包项目。**当时承诺待遇还不错，所以就立马入职去上班了。但是后面入职后，发现薪酬待遇这块并不是HR所说那样，那个HR自...

昨天看到一档综艺节目，讨论了两个话题：（1）中国学生的数学成绩，平均下来看，会比国外好？为什么？（2）男生的数学成绩，平均下来看，会比女生好？为什么？同时，我又联想到了一个技术圈经常讨...

提到“程序员”，多数人脑海里首先想到的大约是：为人木讷、薪水超高、工作枯燥…… 然而，当离开工作岗位，撕去层层标签，脱下“程序员”这身外套，有的人生动又有趣，马上展现出了完全不同的A/B面人生！ 不论是简单的爱好，还是正经的副业，他们都干得同样出色。偶尔，还能和程序员的特质结合，产生奇妙的“化学反应”。 @Charlotte：平日素颜示人，周末美妆博主 大家都以为程序媛也个个不修边幅，但我们也许...

文章目录数据库基础知识为什么要使用数据库什么是SQL？什么是MySQL?数据库三大范式是什么mysql有关权限的表都有哪几个MySQL的binlog有有几种录入格式？分别有什么区别？数据类型mysql有哪些数据类型引擎MySQL存储引擎MyISAM与InnoDB区别MyISAM索引与InnoDB索引的区别？InnoDB引擎的4大特性存储引擎选择索引什么是索引？索引有哪些优缺点？索引使用场景（重点）...

有个好朋友ZS，是技术总监，昨天问我：“有一个老下属，跟了我很多年，做事勤勤恳恳，主动性也很好。但随着公司的发展，他的进步速度，跟不上团队的步伐了，有点...

私下里，有不少读者问我：“二哥，如何才能写出一份专业的技术简历呢？我总感觉自己写的简历太烂了，所以投了无数份，都石沉大海了。”说实话，我自己好多年没有写过简历了，但我认识的一个同行，他在阿里，给我说了一些他当年写简历的方法论，我感觉太牛逼了，实在是忍不住，就分享了出来，希望能够帮助到你。 01、简历的本质 作为简历的撰写者，你必须要搞清楚一点，简历的本质是什么，它就是为了来销售你的价值主张的。往深...

不说了，字节跳动也反手把我挂了。

场景 日常开发，if-else语句写的不少吧？？当逻辑分支非常多的时候，if-else套了一层又一层，虽然业务功能倒是实现了，但是看起来是真的很不优雅，尤其是对于我这种有强迫症的程序"猿"，看到这么多if-else，脑袋瓜子就嗡嗡的，总想着解锁新姿势：干掉过多的if-else！！！本文将介绍三板斧手段： 优先判断条件，条件不满足的，逻辑及时中断返回； 采用策略模式+工厂模式； 结合注解，锦...

有小伙伴问松哥这个问题，他在上海某公司，在离职了几个月后，前公司的领导联系到他，希望他能够返聘回去，他很纠结要不要回去？ 俗话说好马不吃回头草，但是这个小伙伴既然感到纠结了，我觉得至少说明了两个问题：1.曾经的公司还不错；2.现在的日子也不是很如意。否则应该就不会纠结了。 老实说，松哥之前也有过类似的经历，今天就来和小伙伴们聊聊回头草到底吃不吃。 首先一个基本观点，就是离职了也没必要和老东家弄的苦...

不知道是不是只有我这样子，还是你们也有过类似的经历。 上学的时候总有很多光辉历史，学年名列前茅，或者单科目大佬，但是虽然慢慢地长大了，你开始懈怠了，开始废掉了。。。 什么？你说不知道具体的情况是怎么样的？ 我来告诉你： 你常常潜意识里或者心理觉得，自己真正的生活或者奋斗还没有开始。总是幻想着自己还拥有大把时间，还有无限的可能，自己还能逆风翻盘，只不是自己还没开始罢了，自己以后肯定会变得特别厉害...

往往，我们看不进去大段大段的逻辑。深刻的哲理，往往短而精悍，一阵见血。问：产品经理挺漂亮的，有点心动，但不知道合不合得来。男生更看重女生的身材脸蛋，还是...

二哥，有个事想询问下您的意见，您觉得应届生值得去外包吗？公司虽然挺大的，中xx，但待遇感觉挺低，马上要报到，挺纠结的。

当HR压你价，说你只值7K时，你可以流畅地回答，记住，是流畅，不能犹豫。 礼貌地说：“7K是吗？了解了。嗯~其实我对贵司的面试官印象很好。只不过，现在我的手头上已经有一份11K的offer。来面试，主要也是自己对贵司挺有兴趣的，所以过来看看……”（未完） 这段话主要是陪HR互诈的同时，从公司兴趣，公司职员印象上，都给予对方正面的肯定，既能提升HR的好感度，又能让谈判气氛融洽，为后面的发挥留足空间。...

HashMap底层实现原理，红黑树，B+树，B树的结构原理 Spring的AOP和IOC是什么？它们常见的使用场景有哪些？Spring事务，事务的属性，传播行为，数据库隔离级别 Spring和SpringMVC，MyBatis以及SpringBoot的注解分别有哪些？SpringMVC的工作原理，SpringBoot框架的优点，MyBatis框架的优点 SpringCould组件有哪些，他们...

面试阿里p7被问到的问题(当时我只知道第一个)：@Conditional是做什么的?@Conditional多个条件是什么逻辑关系？条件判断在什么时候执...

我们程序员应该抱着尝鲜、猎奇的心态，否则就容易固步自封，技术停滞不前。

编程语言层出不穷，从最初的机器语言到如今2500种以上的高级语言，程序员们大呼“学到头秃”。程序员一边面临编程语言不断推陈出新，一边面临由于许多代码已存在，程序员编写新应用程序时存在重复“搬砖”的现象。 无代码/低代码编程应运而生。无代码/低代码是一种创建应用的方法，它可以让开发者使用最少的编码知识来快速开发应用程序。开发者通过图形界面中，可视化建模来组装和配置应用程序。这样一来，开发者直...

最近面试了一个31岁8年经验的程序猿，让我有点感慨，大龄程序猿该何去何从。

说实话，自己的算法，我一个不会，太难了吧

已经连续五年参加大厂校招、社招的技术面试工作，简历看的不下于万份 这篇文章会用实例告诉你，什么是差的程序员简历！ 疫情快要结束了，各个公司也都开始春招了，作为即将红遍大江南北的新晋UP主，那当然要为小伙伴们做点事（手动狗头）。 就在公众号里公开征简历，义务帮大家看，并一一点评。《启舰：春招在即，义务帮大家看看简历吧》 一石激起千层浪，三天收到两百多封简历。 花光了两个星期的所有空闲时...

我们都玩过Windows操作系统中的经典游戏扫雷（Minesweeper），如果把质数当作一颗雷，那么，表格中红色的数字哪些是雷（质数）？您能找出多少个呢？文中用列表的方式罗列了10000以内的自然数、质数（素数），6的倍数等，方便大家观察质数的分布规律及特性，以便对算法求解有指导意义。另外，判断质数是初学算法，理解算法重要性的一个非常好的案例。

正确选择比瞎努力更重要！

两个星期以前，就有读者强烈要求我写一篇 Java Stream 流的文章，我说市面上不是已经有很多了吗，结果你猜他怎么说：“就想看你写的啊！”你看你看，多么苍白的喜欢啊。那就“勉为其难”写一篇吧，嘻嘻。 单从“Stream”这个单词上来看，它似乎和 java.io 包下的 InputStream 和 OutputStream 有些关系。实际上呢，没毛关系。Java 8 新增的 Stream 是为...