import java.sql.*;
public class Conn {
    static Connection con;
    //static PreparedStatement sql;
    static ResultSet res;
    public Connection getConnetion(){
        try {
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            System.out.print("驱动加载成功");
        } catch (Exception e1) {
            e1.printStackTrace();
        }   
        try {
            con=DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName=ADM","sa","sa");
            System.out.print("数据库连接成功");
        } catch (Exception e1) {
            e1.printStackTrace();
        }
         return con;
    }
    public static void main(String[] args) {
        Conn c=new Conn();
        c.getConnetion();
        try {
        String sql="insert into user(userID,password)values(51,65)";
            Statement stmt=con.createStatement();
            stmt.executeUpdate(sql);                 //报错指示在这行报错内容是：Incorrect syntax near the keyword 'user'
        System.out.print("添加成功");
        con.close();
        }catch (Exception e1) {
            e1.printStackTrace();
        }
        
    }
   
}

package com.xiaoa.demo;

import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

import com.mysql.jdbc.Connection;

public class Conn {
    static Connection con;
    //static PreparedStatement sql;
    static ResultSet res;
    public Connection getConnetion(){
        try {
            //Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            Class.forName("com.mysql.jdbc.Driver");
            System.out.print("驱动加载成功");
        } catch (Exception e1) {
            e1.printStackTrace();
        }    
        try {
            //con=(Connection) DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName=ADM","sa","sa"); 
            con=(Connection) DriverManager.getConnection("jdbc:sqlserver://localhost:1433/ADM","sa","sa"); 
            //con=(Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","123"); //这还是连我的mysql数据库可以成功
            System.out.print("数据库连接成功");
        } catch (Exception e1) {
            e1.printStackTrace();
        }
         return con;
    }
    public static void main(String[] args) {
        Conn c=new Conn();
        c.getConnetion();
        try {
        String sql="insert into user(userID,password)values(51,65)";
        //String sql="insert into user(id,password)values(51,'65')";
            Statement stmt=con.createStatement();
            stmt.executeUpdate(sql);                 //报错指示在这行报错内容是：Incorrect syntax near the keyword 'user'//看看你的user表有没有
        System.out.print("添加成功");
        con.close();
        }catch (Exception e1) {
            e1.printStackTrace();
        }
        
    }
   
}

Incorrect syntax near the keyword 'user'

这句是说你的语法错误.你看是不是格式哪里不对

我的数据库是sql2005的，表也建了 语法我对了好久感觉没什么毛病

你把我的代码试了么

用您的加载不上驱动，我库是SQL2005的，应该用你的还要去网上下载一个 .jar包是吗

能把你的错误完整的贴出来吗。连数据库必须有相应的jar包

报错内容是
驱动加载成功数据库连接成功com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'user'.
    at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(Unknown Source)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(Unknown Source)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.doExecuteStatement(Unknown Source)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement$StmtExecCmd.doExecute(Unknown Source)
    at com.microsoft.sqlserver.jdbc.TDSCommand.execute(Unknown Source)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(Unknown Source)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(Unknown Source)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(Unknown Source)
    at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeUpdate(Unknown Source)
    at Conn.main(Conn.java:29)

import java.sql.*;
public class Conn {
    static Connection con;
    //static PreparedStatement sql;
    static ResultSet res;
    public Connection getConnetion(){
        try {
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            System.out.print("驱动加载成功");
        } catch (Exception e1) {
            e1.printStackTrace();
        }    
        try {
            con=(Connection)DriverManager.getConnection("jdbc:sqlserver://localhost:1433;DatabaseName=ADM","sa","sa"); 
            System.out.print("数据库连接成功");
        } catch (Exception e1) {
            e1.printStackTrace();
        }
         return con;
    }
    public static void main(String[] args) {
        Conn c=new Conn();
        c.getConnetion();
        try {
        String sql="insert into user(userID,password)values(51,65)";
            Statement stmt=con.createStatement();
            stmt.executeUpdate(sql);                 //报错指示在这行报错内容是：Incorrect syntax near the keyword 'user'
        System.out.print("添加成功");
        con.close();
        }catch (Exception e1) {
            e1.printStackTrace();
        }
        
    }
   
}

试试

应该是我的驱动包有问题，今天下了好多个，还都是在这样，，