Error connecting to MySQL database: 2059 - authentication plugin 'caching_ sha2_ The solution of 'password'

Cause analysis ： The reason for the error ：MySQL The new version （8 Above version ） The encryption method of user login account is 【caching_sha2_password】,Navicat This user login account encryption method is not supported .

1. First we need to open MySQL Command line client , As shown in the figure , Click on 【MySQL 8.0 command line client】

2. Enter your own installation MySQL The password set when , Log in to the client , As shown in the figure , Indicates successful login

3. Check the encryption method first , command ：show variables like ‘default_authentication_plugin’;

4. View local mysql User information , command ：select host,user,plugin from mysql.user;

5. because Navicat I won't support it MySQL The new version of this user login account encryption , So next we need to modify root The encryption method of the account is 【mysql_native_password】; command ：ALTER USER ‘root’@‘localhost’ IDENTIFIED WITH mysql_native_password BY ‘123456’; （ Be careful ： Pay attention to the last root You set it up root Password of the account , What I set up is “123456“）

6. Finally reopen Navicat Connect MySQL You can succeed