解决Navicat for mySql 的1045错误

1.新建数据库，链接时报错：

错误1045 Access denied for user 'root'@'localhost' (using password:YES)

2.百度的大部分方法都试过，什么修改my.ini文件，修改mySql中的root密码，地址改成127.0.0.1都不行。

3.我已正确安装mysql-5.6.39-winx64和Navicat for mySql，系统中存在MySQL服务，服务启动仍然报1045错误。

4.这个问题搞了很久，最后抱着最后一试的想法决定从新安装mySql服务。

如下为解决步骤：

1）在安装的mysql-5.6.39-winx64目录中，存在my-default.ini文件，将其删除

2）在当前目录下新建一个文本文件，将如下代码拷贝进去，并命名为my.ini  

注意：basedir = "D:\mysql-5.6.39-winx64\mysql-5.6.39-winx64"

      datadir = "D:\mysql-5.6.39-winx64\mysql-5.6.39-winx64\data"

      Server = "D:\mysql-5.6.39-winx64\mysql-5.6.39-winx64\bin\mysqladmin.exe"

      这三条语句应修改成本身安装对应的目录！！！！！！！

# *** upgrade to a newer version of MySQL.

[mysqld]
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
 basedir = "D:\mysql-5.6.39-winx64\mysql-5.6.39-winx64"
 datadir = "D:\mysql-5.6.39-winx64\mysql-5.6.39-winx64\data"
 port = 3306
# server_id = .....


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 


#设置数据库引擎为INNODB
default-storage-engine=INNODB

# 设置mysql服务器编码
character_set_server=utf8

# 设置mysql服务器字符集
collation-server=utf8_general_ci
port = 3306
server_id = 1

[client]
default-character-set = utf8

[WinMySQLAdmin]
Server = "D:\mysql-5.6.39-winx64\mysql-5.6.39-winx64\bin\mysqladmin.exe"

3）编辑完成后保存,回到桌面,右键"个人电脑"--"属性"--"高级系统设置"--"环境变量"--打开"PATH"编辑框,在尾部添加mysql解文件的bin目录,并以";"结尾',编辑完后点肯定关闭窗口;

4）打开"命令提示符","cmd"进入控制台,输入"mysqld --install"安装mysql服务;

5）继续输入"net start mysql",出现图下结果说明大功告成了;

6）此时,咱们须要为mysql默认管理员"root"设置密码:执行"mysqladmin -u root password 123456"便可;

7）打开Navicat for mySql，链接数据库，能够看到数据库成功链接，没有再报错