sql.executeQuery:[Microsoft][ODBC SQL Server Driver][SQL Server]第 1 行: '*' 附近有语法错误。

代码如下package test;
import java.sql.*;
public class Conn {
Connection con;
Statement st;
ResultSet rs;
public Conn(){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:people","sa","");
}catch(Exception e){
System.out.println(e.toString());
}
}

public boolean execu(String sql) {
try {
st=con.createStatement();
st.execute(sql);
} catch (Exception e) {
System.out.println(e);
}
return false;
}

public ResultSet getRS(String sql) {
try{
st=con.createStatement();
rs=st.executeQuery(sql);
return rs;
}
catch(Exception e){
return null;
}
}
public ResultSet executeQuery(String sql)throws Exception
{
try
{
st=con.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIV

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