java.sql.SQLSyntaxErrorException错误

package com.imooc.jdbc.demo3;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import org.junit.Test;

import com.imooc.jdbc.utils.JDBCUtils;

public class JDBCDemo2 {

@Test

public void demo1() {

Connection conn=null;

PreparedStatement pstmt=null;

ResultSet resultSet=null;

try {

conn=JDBCUtils.getConnection();

String sql="UPDAYE user SET username=?,password=?,name=? WHERE uid=?";

pstmt=conn.prepareStatement(sql);

pstmt.setString(1, "www");

pstmt.setString(2, "221");

pstmt.setString(3, "王五");

pstmt.setInt(4, 6);

int i=pstmt.executeUpdate();

if(i>0) {

System.out.println("修改成功");

}else

{

System.out.println("修改失败");

}

} catch (ClassNotFoundException | SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally {

JDBCUtils.release(conn, pstmt, resultSet);

}

}

}

java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UPDAYE user SET username='www',password='221',name='王五' WHERE uid=6' at line 1

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120)

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)

at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)

at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:970)

at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1109)

at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1057)

at com.mysql.cj.jdbc.ClientPreparedStatement.executeLargeUpdate(ClientPreparedStatement.java:1377)

at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdate(ClientPreparedStatement.java:1042)

at com.imooc.jdbc.demo3.JDBCDemo2.demo1(JDBCDemo2.java:26)