用JAVA制作ICQ

et r=prepare.executeQuery();//执行数据库查寻 if(r.next()){//以下比较输入的号码于密码是否相同 String pass=r.getString(/password/).trim(); System.out.println(pass); if(passwd.regionMatches(0,pass,0,pass.length())){ out.println(/ok/);//如果相同就告诉客户ok//并且更新数据库用户为在线//以及注册用户的ip 地址 //*************register ipaddress String setip=/update icq set ip=? where icqno=?/; PreparedStatement prest=c.prepareCall(setip); prest.clearParameters(); prest.setString(1,socket.getInetAddress().getHostAddress()); prest.setInt(2,g); int set=prest.executeUpdate(); System.out.println(set); //*************ipaddress //set status online String status=/update icq set status=1 where icqno=?/; PreparedStatement prest2=c.prepareCall(status); prest2.clearParameters(); prest2.setInt(1,g); int set2=prest2.executeUpdate(); System.out.println(set2); //set online}//否者告诉客户失败 else out.println(/false/);r.close();c.close();} else{ out.println(/false/); System.out.println(/false/); r.close(); c.close();} }catch (Exception e){e.printStackTrace();} socket.close(); }//end login //登录结束 //以下为处理客户的新建请求else if(str.equals(/new/)){ try{ Class.forName(/sun.jdbc.odbc.JdbcOdbcDriver/);//连接数据库 Connection c2=DriverManager.getConnection(/jdbc:odbc:javaicq/,/ /,/ /);String newsql=/insert into icq(nickname,password,email,info,place,pic) values(?,?,?,?,?,?)/;//准备接受用户的呢称，密码，email，个人资料，籍贯，头像等信息 PreparedStatement prepare2=c2.prepareCall(newsql); String nickname=in.readLine().trim(); String password=in.readLine().trim(); String email=in.readLine().trim(); String info=in.readLine().trim(); String place=in.readLine().trim(); int picindex=Integer.parseInt(in.readLine()); prepare2.clearParameters(); prepare2.setString(1,nickname); prepare2.setString(2,password); prepare2.setString(3,email); prepare2.setString(4,info); prepare2.setString(5,place); prepare2.setInt(6,picindex); int r3=prepare2.executeUpdate();//执行数据库添加String sql2=/select icqno from icq where nickname=?/;//以下告诉客户其注册的号码 PreparedStatement prepare3=c2.prepareCall(sql2); prepare3.clearParameters(); prepare3.setString(1,nickname); ResultSet r2=prepare3.executeQuery(); while(r2.next()){ //out.println(r2.getInt(1)); no=r2.getInt(1); System.out.println(no); } out.println(no); out.println(/ok/);c2.close();//完毕 }catch (Exception e){e.printStackTrace();out.println(/false/);} socket.close(); }//end new //新建用户结束 //以下处理用户查找好友 else if(str.equals(/find/)){ try{ Class.forName(/sun.jdbc.odbc.JdbcOdbcDriver/); Connection c3=DriverManager.getConnection(/jdbc:odbc:javaicq/,/ /,/ /); //以下连接数据库，并且返回其他用户的呢称，性别，籍贯，个人资料等信息 String find=/select nickname,sex,place,ip,email,info from icq/; Statement st=c3.createStatement(); ResultSet result=st.executeQuery(find); while(result.next()){ out.println(result.getString(/nickname/)); out.println(result.getString(/sex/)); out.println(result.getString(/place/)); out.println(result.getString(/ip/)); out.println(result.getString(/email/)); out.println(result.getString(/info/)); }//while end out.println(/over/); ////////GET ICQNO int d,x;boolean y;//以下返回用户的jicq号码，头像号，及是否在线 ResultSet iset=st.executeQuery(/select icqno,pic,status from icq/); while(iset.next()){ d=iset.getInt(/icqno/); out.println(d); x=iset.getInt(/pic/);//pic info out.println(x); y=iset.getBoolean(/status/); if (y){out.println(/1/);} else {out.println(/0/);} //System.out.println(d); } // end send jicqno iset.close(); /////////icqno end c3.close();result.close(); }catch (Exception e){e.printStackTrace();System.out.println(/false/);} //socket.close(); }//end find //查找好友结束 //以下处理用户登录时读取其好友资料 else if(str.equals(/friend/)){ try{ Class.forName(/sun.jdbc.odbc.JdbcOdbcDriver/); Connection c4=DriverManager.getConn

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