using method 'mysql_native_password' failed with message

Posted 2023-05-09 晓周的园子

1. 错误消息：Connection open error . Authentication to host \'10.114.129.206\' for user \'root\' using method \'mysql_native_password\' failed with message: Reading from the stream has failed.DbType="MySql";ConfigId=""
2. 解决方法：在连接字符串里添加：SslMode=None;

1. 错误消息：Authentication to host \'10.114.129.206\' for user \'root\' using method \'mysql_native_password\' failed with message: Got timeout reading communication packetsDbType="MySql";ConfigId=""
2. 解决方法：

   <add name="ConnectionString" connectionString="server=10.xxx.xxx.xxx;port=3306;user id=root;password=xxxx;database=jyc;persistsecurityinfo=True;ConvertZeroDateTime=true;AllowUserVariables=True;SslMode=None;" providerName="MySql.Data.MySqlClient" xdt:Transform="Replace" xdt:Locator="Match(name)"/>
   

parse xml document using dom method

the bookstore.xml:

 

 

<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
    <book id="1">
        <bookname>weicheng</bookname>
        <author>qianzhongshu</author>
    </book>
    <book id="2" value="2_2">
        <bookname>yidoudewunv</bookname>
        <author>chuangduankangcheng</author>
    </book>
    <book id="3" class="3_3">
        <bookname>a song of ice and fire</bookname>
        <author>george martin</author>
    </book>
</bookstore>

 

 

 

 

package com.user;

import java.io.IOException;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class Bookstore {

    public static void main(String[] args) throws SAXException, IOException, ParserConfigurationException {
        // TODO Auto-generated method stub

        
        
        
        
NodeList nodeList=DocumentBuilderFactory.newInstance().
                newDocumentBuilder().parse("src/com/user/Bookstore.xml").getElementsByTagName("book");



System.out.println("There are "+nodeList.getLength()+" books");


for(int i=0;i<nodeList.getLength();i++){
    
    System.out.println("======"+(i+1)+"      ");
    Node node=nodeList.item(i);
    NamedNodeMap nameNodeMap=node.getAttributes();
    NodeList childnodeList=node.getChildNodes();
    
    
    for(int j=0;j<nameNodeMap.getLength();j++){
        
        
        
        
        Node nodeMap=nameNodeMap.item(j);
        System.out.println(nodeMap.getNodeName()+": "+nodeMap.getNodeValue());
    
        
        
        
        
    }
    
    for (int k=0;k<childnodeList.getLength();k++){
        
        
        
        
        Node childNode=childnodeList.item(k);
    if (childNode.getNodeType()==Node.ELEMENT_NODE){
        
        System.out.println(childNode.getNodeName()+": "+childNode.getFirstChild().getNodeValue());
        
    }
        
        
        
        
        
        
    }
    
    
    
    
    System.out.println("      "+(i+1)+"------");





}        
        
        
        
        
    }

}

 

 

 

 

 

run the java program: