刚学JDBC,想修改mysql数据库的数据,但报错了,请各位指教
package com.itheima.数据库连接池;
import com.alibaba.druid.pool.DruidDataSourceFactory;
import javax.sql.DataSource;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.sql.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;
public class Test {
public static void main(String[] args) throws Exception, FileNotFoundException {
DriverManager.getConnection("jdbc:mysql:\\db1", "root", "1234");
Properties properties = new Properties();
properties.load(new FileReader("jdbc_1\druid.properties"));
DataSource dataSource = DruidDataSourceFactory.createDataSource(properties);
Connection connection = dataSource.getConnection();
PreparedStatement preparedStatement = connection.prepareStatement("insert into emp(id,ename,joindate,salary,bouns) values (?,?,?,?,?)");
preparedStatement.setInt(1, 23);
preparedStatement.setString(2, "张三");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date date = sdf.parse("2019-3-4");
preparedStatement.setDate(3, new java.sql.Date(date.getTime()));
preparedStatement.setDouble(4, 7800);
preparedStatement.setDouble(5, 1800);
int i = preparedStatement.executeUpdate();
System.out.println(i > 0 ? "修改成功" : "修改失败");
preparedStatement.close();
connection.close();
}
}
报错信息:
Connected to the target VM, address: '127.0.0.1:56905', transport: 'socket'
Tue Sep 06 23:39:31 CST 2022 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
九月 06, 2022 11:39:32 下午 com.alibaba.druid.pool.DruidDataSource info
信息: {dataSource-1} inited
Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'bouns' in 'field list'
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3933)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3869)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2524)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2675)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2465)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1912)
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2133)
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2067)
at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5175)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2052)
at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeUpdate(DruidPooledPreparedStatement.java:256)
at com.itheima.数据库连接池.Test.main(Test.java:30)
Disconnected from the target VM, address: '127.0.0.1:56905', transport: 'socket'
