{ "msg":"\n### Error querying database. Cause: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure\n\nThe last packet successfully received from the server was 39,502 milliseconds ago. The last packet sent successfully to the server was 39,502 milliseconds ago.\n### The error may exist in com/cxz/system/mapper/CxzStockTemplateMapper.java (best guess)\n### The error may involve defaultParameterMap\n### The error occurred while setting parameters\n### SQL: SELECT id,stock,title,content,remark,description,keywords,create_time,update_time FROM gpcxz_manage.cxz_stock_template WHERE (stock = ?)\n### Cause: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure\n\nThe last packet successfully received from the server was 39,502 milliseconds ago. The last packet sent successfully to the server was 39,502 milliseconds ago.\n; Communications link failure\n\nThe last packet successfully received from the server was 39,502 milliseconds ago. The last packet sent successfully to the server was 39,502 milliseconds ago.; nested exception is com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure\n\nThe last packet successfully received from the server was 39,502 milliseconds ago. The last packet sent successfully to the server was 39,502 milliseconds ago.", "code":500 }