用户注册加入验证码
从同事那弄过来,拿来主义了.
用到一个jar包(附件里有)
jsp测试页:
<
%@ page
contentType
="text/html; charset=GBK" %
>
< %@ page import = "cn.com.enorth.util.imgcode.ImageCodeUtils" % >
<%
String txt = "";
String rightCode = ImageCodeUtils.getCodeValue(request);
if(ImageCodeUtils.isGoodCode(request,"thecode")){
txt="yes";
}
else{
txt="no";
}
%>
< html >
< head >
< meta http-equiv ="Content-Type" content ="text/html; charset=gb2312" />
< title >test image code </title>
< script language ="javascript" >
function reloadImg(){
var i = Math.random();
document.getElementById("imgCode").src="imgcode?"+i;
}
</script>
</head>
< body bgcolor ="#ffffff" >
< form action ="test.jsp" method ="POST" name ="form1" >
< img id ="imgCode" src ="imgcode" border ="0" >
< input type ="text" name ="thecode" /> < a href ="javascript:reloadImg();" >看不清？ </a>
< br >
< input type ="submit" name ="submit" value ="submit" /> < %=txt% >
</form>
< a href ="changetype.jsp" >change type </a>
</body>
</html>
< %@ page import = "cn.com.enorth.util.imgcode.ImageCodeUtils" % >
<%
String txt = "";
String rightCode = ImageCodeUtils.getCodeValue(request);
if(ImageCodeUtils.isGoodCode(request,"thecode")){
txt="yes";
}
else{
txt="no";
}
%>
< html >
< head >
< meta http-equiv ="Content-Type" content ="text/html; charset=gb2312" />
< title >test image code </title>
< script language ="javascript" >
function reloadImg(){
var i = Math.random();
document.getElementById("imgCode").src="imgcode?"+i;
}
</script>
</head>
< body bgcolor ="#ffffff" >
< form action ="test.jsp" method ="POST" name ="form1" >
< img id ="imgCode" src ="imgcode" border ="0" >
< input type ="text" name ="thecode" /> < a href ="javascript:reloadImg();" >看不清？ </a>
< br >
< input type ="submit" name ="submit" value ="submit" /> < %=txt% >
</form>
< a href ="changetype.jsp" >change type </a>
</body>
</html>
自己的用法:
页面
<
tr
>
< td width ="30%" align ="right" >
< img id ="imgCode" src ="imgcode" border ="0" />
</td>
< td >
< input type ="text" name ="thecode" /> < font color ="red" >* </font>
< a href ="javascript:reloadImg();" >看不清？ </a>
< font color ="red" >${VerificationError } </font>
</td>
</tr>
< td width ="30%" align ="right" >
< img id ="imgCode" src ="imgcode" border ="0" />
</td>
< td >
< input type ="text" name ="thecode" /> < font color ="red" >* </font>
< a href ="javascript:reloadImg();" >看不清？ </a>
< font color ="red" >${VerificationError } </font>
</td>
</tr>
程序中(如果验证码输入正确...)
if (ImageCodeUtils.isGoodCode(request,
"thecode")){
...
...
return SUCCESS;
}
...
...
return SUCCESS;
}
本文转自chainli 51CTO博客，原文链接：http://blog.51cto.com/lichen/140783，如需转载请自行联系原作者
