严重: null
java.sql.SQLException: Access denied for user 'root'@'192.168.1.100' (using password: YES)mysql> select user,host,password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host | password |
+------+-----------+-------------------------------------------+
| root | localhost | *7820354FA39E9B967F91EA31D397DC1E788D4D43 |
| book | % | *7820354FA39E9B967F91EA31D397DC1E788D4D43 |
| root | % | *7820354FA39E9B967F91EA31D397DC1E788D4D43 |
+------+-----------+-------------------------------------------+我sql里的用户
java.sql.SQLException: Access denied for user 'root'@'192.168.1.100' (using password: YES)mysql> select user,host,password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host | password |
+------+-----------+-------------------------------------------+
| root | localhost | *7820354FA39E9B967F91EA31D397DC1E788D4D43 |
| book | % | *7820354FA39E9B967F91EA31D397DC1E788D4D43 |
| root | % | *7820354FA39E9B967F91EA31D397DC1E788D4D43 |
+------+-----------+-------------------------------------------+我sql里的用户
package com.yika.utils;
import java.sql.*;
import java.util.*;
import java.io.*;
public class DBUtils {
private static String driverName;
private static String url;
private static String hostName;
private static String port;
private static String databaseName;
private static String user;
private static String password;
private DBUtils(){}
static{
Properties prop=new Properties();
InputStream is=DBUtils.class.getResourceAsStream("DBConfig.properties");
try {
prop.load(is);
driverName=prop.getProperty("driverName");
url=prop.getProperty("url");
hostName=prop.getProperty("hostName");
port=prop.getProperty("port");
databaseName=prop.getProperty("databaseName");
user=prop.getProperty("user");
password=prop.getProperty("password");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
Class.forName(driverName);
} catch (ClassNotFoundException e) {
System.out.println("驱动加载失败");
}
}
public static Connection getConn(){
Connection conn=null;
try {
conn=DriverManager.getConnection(url+hostName+port+databaseName,user,password);
} catch (SQLException e) {
System.out.println("数据库连接失败");
}
return conn;
}
public static PreparedStatement getPstmt(Connection conn,String sql){
PreparedStatement pstmt=null;
try {
pstmt=conn.prepareStatement(sql);
} catch (SQLException e) {
System.out.println("Exception");
}
return pstmt;
}
public static PreparedStatement getPstmt(Connection conn,String sql,int autoGeneratedKeys){
PreparedStatement pstmt=null;
try {
pstmt=conn.prepareStatement(sql, autoGeneratedKeys);
} catch (SQLException e) {
System.out.println("Exception");
}
return pstmt;
}
public static ResultSet getRs(PreparedStatement pstmt){
ResultSet rs=null;
try {
rs=pstmt.executeQuery();
} catch (SQLException e) {
System.out.println("数据查询失败");
}
return rs;
}
public static int update(PreparedStatement pstmt){
int result=0;
try {
result=pstmt.executeUpdate();
} catch (SQLException e) {
System.out.println("数据更新失败");
}
return result;
}
public static void close(ResultSet rs){
if(rs!=null){
try {
rs.close();
} catch (SQLException e) {
System.out.println("Rs关闭失败。。");
}
rs=null;
}
}
public static void close(PreparedStatement pstmt){
if(pstmt!=null){
try {
pstmt.close();
} catch (SQLException e) {
System.out.println("Pstmt关闭失败");
}
pstmt=null;
}
}
public static void close(Connection conn){
if(conn!=null){
try {
conn.close();
} catch (SQLException e) {
System.out.println("关闭数据库连接出错");
}
conn=null;
}
}}配置文件:DBConfig.properties
#mysql
driverName=com.mysql.jdbc.Driver
url=jdbc:mysql://
hostName=localhost
port=:3306
databaseName=/bbs
user=root
password=root