자바 tcp 네트워크 프로 그래 밍,jdbc,흐름 의 닫 기(close()패키지)

/*1      */
ServerSocket server  = new ServerSocket("8080");     
/*2            */
Socket client = server.accept();
/*3               */

    /*a        */
    InputStream is = client.getInputStream();     
    /*b     buffer */
    byte[ ] buffer = new byte[ 1024];    
    /*c      */
    int len = is.read(buffer);
    【    ：System.out.println(new String（buffer,0,len,“gbk”)));】
/*4             */   
    /*a        */
    OutputStream os = client.getOutputStream();

    /*b     */
    os.write("      ".getBytes("gbk"));   

/*1      */
 Socket client = new Socket（“localhost”，8080）；
/*2         */
    /*a       */
    OutputSream os = client.getOutputStream();
    /*b     */
    os.write("      ".getBytes("gbk"));//    
/*3           */
     /*a        */
    InputStream is = client.getInputStream();     
    /*b     buffer */
    byte[ ] buffer = new byte[ 1024];    
    /*c      */
    int len = is.read(buffer);
    【    ：System.out.println(new String（buffer,0,len,“gbk”)));】

/* ****       ****　*/
    /*     */
    Class.forName("com.mysql.jdbc.Driver");
    Connection c = null;
    PreparedStatement ps = null;
    ResultSet rs =null;//     
    /*    */
     c = DriverManager.getConnection(""jdbc:mysql://localhost:3306//test","   ","  ");
    /*3）         sql        sql    */
    String sql = "select * from emp e where e.ename like ?";/sql  
    ps = c.preparedStatement(sql);
    ps.setString(1,"%"+searchName+"%");//   1  
    rs = ps.executeQuery();//executeUpate()
    /*4      */
    while(rs.next()){
        String str = rs.getString("name");
        .........
        ........
            
    }

public static void close(Object ...object){
    for(Object obj:object){
        if(null != obj){
            try{
                Class clazz = obj.getClass();//  class  
                Method close = clazz.getMethod("close");//     close  
                close.invoke();//  close（）  
            }catch(Excepting e){
            e.printStackTrace();
            }
        }
}