📄 jsp培训(3)——客户端验证、常用输出方式、jstl基本用法.mht
字号:
=20
=
{<BR> &n=
bsp; =20
=
alert("=C9=FA=C8=D5=B5=C4=B8=F1=CA=BD=B2=BB=D5=FD=C8=B7=A3=A1");<BR> =
; =
=20
=
form.birthday.focus();<BR>  =
; =20
return =
false;<BR> =20
}</P>
<P> //=20
=
=D1=E9=D6=A4email=B5=C4=B8=F1=CA=BD=CA=C7=B7=F1=D5=FD=C8=B7<BR> &nbs=
p; =20
=
if(!isEmail(email))<BR> &n=
bsp;=20
=
{<BR> &n=
bsp; =20
=
alert("Email=B8=F1=CA=BD=B2=BB=D5=FD=C8=B7=A3=A1");<BR> =
=20
=
form.email.focus();<BR> &n=
bsp; =20
return =
false;<BR> =20
}</P>
<P> //=20
=
=D1=E9=D6=A4=B5=E7=BB=B0=BA=C5=C2=EB=B5=C4=B8=F1=CA=BD=CA=C7=B7=F1=D5=FD=C8=
=B7<BR> =20
=
if(!isDigital(phone))<BR> =
=20
=
{<BR> &n=
bsp; =20
=
alert("=B5=E7=BB=B0=BA=C5=C2=EB=B5=C4=B8=F1=CA=BD=B2=BB=D5=FD=C8=B7");<BR=
> =
=20
=
form.phone.focus();<BR> &n=
bsp; =20
return =
false;<BR> =20
}<BR> //=20
=
=D1=E9=D6=A4=B5=D8=D6=B7=B5=C4=B3=A4=B6=C8=CA=C7=B7=F1=D5=FD=C8=B7<BR>&nb=
sp; =20
=
if(!maxLength(address,50))<BR> &=
nbsp; =20
=
{<BR> &n=
bsp; =20
=
alert("=B5=D8=D6=B7=B3=A4=B6=C8=B4=F3=D3=DA50=CE=BB=A3=A1");<BR> &nb=
sp; =20
=
form.address.focus();<BR> =
=20
return =
false;<BR> =20
}<BR> return =
true;<BR> }</P>
<P> //=20
=
=D1=E9=D6=A4=CA=C7=B7=F1=CA=C7=BF=D5<BR> =
function=20
isNull(str)<BR> =20
{<BR> =20
=
if(str.length=3D=3D0)<BR> =
=20
return =
true;<BR> =20
=
else<BR>  =
; =20
return false;<BR> =20
}<BR> //=20
=
=D1=E9=D6=A4=CA=C7=B7=F1=C2=FA=D7=E3=D7=EE=D0=A1=B3=A4=B6=C8<BR> &nb=
sp; function=20
minLength(str,length)<BR> =20
{<BR> =20
=
if(str.length>=3Dlength)<BR> =
=20
return =
true;<BR> =20
=
else<BR>  =
; =20
return false;<BR> =20
}<BR> //=20
=
=C5=D0=B6=CF=CA=C7=B7=F1=C2=FA=D7=E3=D7=EE=B4=F3=B3=A4=B6=C8<BR> &nb=
sp; function=20
maxLength(str,length)<BR> =20
{<BR> =20
=
if(str.length<=3Dlength)<BR> =
=20
return =
true;<BR> =20
=
else<BR>  =
; =20
return false;<BR> =20
}<BR> //=20
=
=C5=D0=B6=CF=CA=C7=B7=F1=CA=C7=CA=FD=D7=D6<BR> &nb=
sp; function=20
isDigital(str)<BR> =20
{<BR> =20
=
for(i=3D0;i<str.length;i++)<BR> &nb=
sp; =20
=
{<BR> &n=
bsp; =20
//=20
=
=D4=CA=D0=ED=CA=B9=D3=C3=C1=AC=D7=D6=B7=FB<BR> &nb=
sp; =20
if(str.charAt(i)>=3D'0' && str.charAt(i)<=3D'9'=20
=
<BR> &nb=
sp; =20
|| str.charAt(i)=3D=3D"-" && i!=3D0 &&=20
=
i!=3Dstr.length-1)<BR> &nb=
sp; =20
=
continue;<BR> =
=20
=
else<BR>  =
; =20
return =
false;<BR> =20
}<BR> return =
true;<BR> =20
}<BR> //=20
=
=C5=D0=B6=CF=CA=C7=B7=F1=CA=C7=D5=FB=CA=FD<BR> &nb=
sp; function=20
isNumber(str)<BR> =20
{<BR> =20
=
for(i=3D0;i<str.length;i++)<BR> &nb=
sp; =20
=
{<BR> &n=
bsp; =20
//=20
=
=C8=E7=B9=FB=D2=AA=C5=D0=B6=CF=D0=A1=CA=FD=A3=AC=D0=E8=D2=AA=C5=D0=B6=CF=D0=
=A1=CA=FD=B5=E3<BR> =
=20
if(str.charAt(i)>=3D'0' && str.charAt(i)<=3D'9'=20
=
<BR> &nb=
sp; =20
|| str.charAt(i)=3D=3D"-" &&=20
=
i=3D=3D0)<BR> =
=20
=
continue;<BR> =
=20
=
else<BR>  =
; =20
return =
false;<BR> =20
}<BR> return =
true;<BR> =20
}<BR> //=20
=
=C5=D0=B6=CF=CA=C7=B7=F1=CA=C7=C8=D5=C6=DA=A3=AC=C8=D5=C6=DA=B5=C4=B8=F1=CA=
=BD=CE=AA1988-1-1<BR> function=20
isDate(date)<BR> =20
{<BR> //=20
=
=B2=E9=D5=D2=B7=D6=B8=F4=B7=FB<BR> &nb=
sp; index1 =3D=20
=
date.indexOf("-");<BR> &nb=
sp;=20
//=20
=
=C8=E7=B9=FB=B7=D6=B8=F4=B7=FB=B2=BB=B4=E6=D4=DA=A3=AC=D4=F2=B2=BB=CA=C7=BA=
=CF=B7=A8=B5=C4=CA=B1=BC=E4<BR> =
=20
if(index1 =3D=3D=20
=
-1)<BR> =
=20
return =
false;<BR> //=20
=
=BB=F1=C8=A1=CA=B1=BC=E4=D6=D0=B5=C4=C4=EA<BR> &nb=
sp; year =3D=20
=
date.substring(0,index1);<BR> &n=
bsp; =20
// =
=BB=F1=C8=A1=CA=B1=BC=E4=D6=D0=B5=C4=CA=A3=CF=C2=B2=BF=B7=D6<BR> &nb=
sp; =20
date =3D=20
=
date.substring(index1+1);<BR> &n=
bsp; =20
// =
=B2=E9=D5=D2=B5=DA=B6=FE=B8=F6=B7=D6=B8=F4=B7=FB<BR> &nb=
sp; =20
index1 =3D=20
=
date.indexOf("-");<BR> &nb=
sp;=20
//=20
=
=C8=E7=B9=FB=B2=BB=B4=E6=D4=DA=B5=DA=B6=FE=B8=F6=B7=D6=B8=F4=B7=FB=A3=AC=D4=
=F2=B2=BB=CA=C7=BA=CF=B7=A8=B5=C4=CA=B1=BC=E4<BR> =
=20
if(index1 =3D=3D=20
=
-1)<BR> =
=20
return =
false;<BR> //=20
=
=BB=F1=C8=A1=CA=B1=BC=E4=D6=D0=B5=C4=D4=C2=B7=DD<BR> &nb=
sp; month =3D=20
=
date.substring(0,index1);<BR> &n=
bsp; =20
// =
=BB=F1=C8=A1=CA=B1=BC=E4=D6=D0=B5=C4=C8=D5<BR> &nb=
sp; day =3D=20
=
date.substring(index1+1);<BR> &n=
bsp; =20
//=20
=
=C5=D0=B6=CF=CA=C7=B7=F1=CA=C7=CA=FD=D7=D6=A3=AC=C8=E7=B9=FB=B2=BB=CA=C7=D4=
=F2=B2=BB=CA=C7=BA=CF=B7=A8=B5=C4=CA=B1=BC=E4<BR> =
=20
if(isNumber(year) && isNumber(month) &&=20
=
isNumber(day))<BR> =
=
{<BR> &n=
bsp; =20
//=20
=
=C5=D0=B6=CF=BB=F9=B1=BE=B7=B6=CE=A7<BR> &nb=
sp; =20
if(year<1900 || year>9999 || month<1 || month >12 ||=20
=
day<1)<BR> =
=20
return=20
=
false;<BR> &nb=
sp; =20
//=20
=
=C5=D0=B6=CF31=CC=EC=B5=C4=D4=C2<BR> &=
nbsp; =20
if((month=3D=3D1 || month=3D=3D3 || month=3D=3D5 ||=20
=
month=3D=3D7<BR> &nb=
sp; =20
|| month=3D=3D8 || month=3D=3D10 || month=3D=3D12) &&=20
=
day>31)<BR>  =
; =20
return=20
=
false;<BR> &nb=
sp; =20
//=20
=
=C5=D0=B6=CF30=CC=EC=B5=C4=D4=C2<BR> &=
nbsp; =20
if((month=3D=3D4 || month=3D=3D6 || month=3D=3D9 ||=20
=
month=3D=3D11)<BR> &=
nbsp; =20
&&=20
=
day>30)<BR>  =
; =20
return=20
=
false;<BR> &nb=
sp; =20
//=20
=
=C8=E7=B9=FB=CA=C72=D4=C2=A3=AC=C5=D0=B6=CF=CA=C7=B7=F1=CE=AA=C8=F3=C4=EA=
<BR> &nb=
sp; =20
=
if(month=3D=3D2)<BR>  =
; =20
=
{<BR> &n=
bsp; =20
if(year%400=3D=3D0 || (year%4=3D=3D0 &&=20
=
year%100!=3D0))<BR> =
=20
=
{<BR> &n=
bsp; =20
=
if(day>29)<BR> &n=
bsp; &nb=
sp; =20
return=20
=
false;<BR> &nb=
sp; =20
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