标签：验证码
<pre name="code" class="html"><p> <span id="sure-word" class="fond">验证码：</span> <span style="width:70px"> <input id="Verification" name="Verification" type="text" size="6" style="width:60px"/> </span> <span id="vcodeValidMsg"></span> <span style="margin-left:10px;"> <img src="EC/SecurityCodeImage" id="Verify" style="cursor: hand;" alt="看不清，换一张" /> </span> </p> <span id="Verification.info" style="color:red"></span>
<pre name="code" class="javascript">//除掉字符串两端的空格
function strip(str) {
var reg = /(^\s*)|(\s*$)/g;
return str.replace(reg, '');
}
function verfy_verfy11() {
//flag.code = false;//设置成为通过检测
var code = strip(document.getElementById("Verification").value);
//非空检测
if (code == "") {
$("#Verification\\.info").html(
"<img src='EC/user/images/wrong.gif'/>验证码不能为空!");
return;
}
//ajax检测
$("#Verification\\.info").html(
//"<img src='../images/window_loading.gif'/>正在检测...");
$.post("EC/user/valid.action", {
"code" : code
}, function(data) {
if (data) {
$("#Verification\\.info").html(
"<img src='EC/user/images/right.gif'/>验证码正确!");
flag.code = true;
} else {
$("#Verification\\.info").html(
"<img src='EC/user/images/wrong.gif'/>验证码错误!");
}
}));
}
<script>$(function() {//点击图片更换验证码$("#Verify").click(function() {$(this).attr("src","EC/SecurityCodeImage?timestamp="+ new Date().getTime());});});window.onload = function() {var verifyObj = document.getElementById("Verify");verifyObj.onclick = function() {this.src = "EC/SecurityCodeImage?timestamp="+ new Date().getTime();};};
</script>$(document).ready(function() {
//验证码检测
$(function() {
$("#Verification").blur(function() {
verfy_verfy11();
});
});
}); <pre name="code" class="html"> <package name="User" extends="struts-default" namespace="/EC">
<!-- 验证码 -->
<action name="SecurityCodeImage" class="biz.cld.web.action.user.SecurityCodeImageAction">
<result name="success" type="stream">
<param name="contentType">image/jpeg</param>
<param name="inputName">imageStream</param>
<param name="bufferSize">2048</param>
</result>
</action>
</package><!-- ajax verfy--> <package name="userJson" extends="json-default" namespace="/EC"> <!-- registerNameVerfy ajax--> <action name="registerNameVerfy" class="userManageAction" method="registerNameVerfy"> <result name="success" type="json"> <param name="root">verfy</param> </result> <result name="error" type="json"> <param name="root">verfy</param> </result> </action> <!-- registerEmailVerfy ajax--> <action name="registerEmailVerfy" class="userManageAction" method="registerEmailVerfy"> <result name="success"> <param name="root">verfy</param> </result> <result name="error" type=""> <param name="root">verfy</param> </result> </action> <!-- ajax校验验证码 --> <action name="valid" class="biz.cld.web.action.user.ValidAction"> <result name="success" type="json"> <param name="root">ok</param> </result> </action> </package>
package biz.cld.web.action.user;
import java.util.Arrays;
/**
* 工具类，生成随机验证码字符串
* @version 1.0 2012/08/21
* @author <span style="font-family: Arial, Helvetica, sans-serif;">曾修建</span>
*
*/
public class SecurityCode {
/**
* 验证码难度级别，Simple只包含数字，Medium包含数字和小写英文，Hard包含数字和大小写英文
*/
public enum SecurityCodeLevel {Simple,Medium,Hard};
/**
* 产生默认验证码，4位中等难度
* @return String 验证码
*/
public static String getSecurityCode(){
return getSecurityCode(6,SecurityCodeLevel.Medium,false);
}
/**
* 产生长度和难度任意的验证码
* @param length 长度
* @param level 难度级别
* @param isCanRepeat 是否能够出现重复的字符，如果为true，则可能出现 5578这样包含两个5,如果为false，则不可能出现这种情况
* @return String 验证码
*/
public static String getSecurityCode(int length,SecurityCodeLevel level,boolean isCanRepeat){
//随机抽取len个字符
int len=length;
//字符集合(除去易混淆的数字0、数字1、字母l、字母o、字母O)
char[] codes={'1','2','3','4','5','6','7','8','9',
'a','b','c','d','e','f','g','h','i',
'j','k','m','n','p','q','r','s','t',
'u','v','w','x','y','z','A','B','C',
'D','E','F','G','H','I','J','K','L',
'M','N','P','Q','R','S','T','U','V',
'W','X','Y','Z'};
//根据不同的难度截取字符数组
if(level==SecurityCodeLevel.Simple){
codes=Arrays.copyOfRange(codes, 0,9);
}else if(level==SecurityCodeLevel.Medium){
codes=Arrays.copyOfRange(codes, 0,33);
}
else if(level==SecurityCodeLevel.Hard){
codes=Arrays.copyOfRange(codes, 0,57);
}
//字符集合长度
int n=codes.length;
//抛出运行时异常
if(len>n&&isCanRepeat==false){
throw new RuntimeException(
String.format("调用SecurityCode.getSecurityCode(%1$s,%2$s,%3$s)出现异常，" +
"当isCanRepeat为%3$s时，传入参数%1$s不能大于%4$s",
len,level,isCanRepeat,n));
}
//存放抽取出来的字符
char[] result=new char[len];
//判断能否出现重复的字符
if(isCanRepeat){
for(int i=0;i<result.length;i++){
//索引 0 and n-1
int r=(int)(Math.random()*n);
//将result中的第i个元素设置为codes[r]存放的数值
result[i]=codes[r];
}
}else{
for(int i=0;i<result.length;i++){
//索引 0 and n-1
int r=(int)(Math.random()*n);
//将result中的第i个元素设置为codes[r]存放的数值
result[i]=codes[r];
//必须确保不会再次抽取到那个字符，因为所有抽取的字符必须不相同。
//因此，这里用数组中的最后一个字符改写codes[r]，并将n减1
codes[r]=codes[n-1];
n--;
}
}
return String.valueOf(result);
}
}package biz.cld.web.action.user;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import java.io.ByteArrayInputStream;
import java.util.Map;
import org.apache.struts2.interceptor.SessionAware;
/**
* 提供图片验证码
* @version 1.0 2012/08/22
* @author <span style="font-family: Arial, Helvetica, sans-serif;">曾修建</span>
*/
@SuppressWarnings("serial")
public class SecurityCodeImageAction extends ActionSupport implements SessionAware{
//Struts2中Map类型的session
private Map<String, Object> session;
//图片流
private ByteArrayInputStream imageStream;
public ByteArrayInputStream getImageStream() {
return imageStream;
}
public void setImageStream(ByteArrayInputStream imageStream) {
this.imageStream = imageStream;
}
public String execute() throws Exception {
//如果开启Hard模式，可以不区分大小写
// String securityCode = SecurityCode.getSecurityCode(4,SecurityCodeLevel.Hard, false).toLowerCase();
//获取默认难度和长度的验证码
String securityCode = SecurityCode.getSecurityCode();
imageStream = SecurityImage.getImageAsInputStream(securityCode);
//放入session中
// session.put("SESSION_SECURITY_CODE", securityCode);
ActionContext.getContext().getSession().put("SESSION_SECURITY_CODE", securityCode);
return SUCCESS;
}
public void setSession(Map<String, Object> session) {
this.session = session;
}
}package biz.cld.web.action.user;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import java.io.ByteArrayInputStream;
import java.util.Map;
import org.apache.struts2.interceptor.SessionAware;
/**
* 提供图片验证码
* @version 1.0 2012/08/22
* @author <span style="font-family: Arial, Helvetica, sans-serif;">曾修建</span>
*/
@SuppressWarnings("serial")
public class SecurityCodeImageAction extends ActionSupport implements SessionAware{
//Struts2中Map类型的session
private Map<String, Object> session;
//图片流
private ByteArrayInputStream imageStream;
public ByteArrayInputStream getImageStream() {
return imageStream;
}
public void setImageStream(ByteArrayInputStream imageStream) {
this.imageStream = imageStream;
}
public String execute() throws Exception {
//如果开启Hard模式，可以不区分大小写
// String securityCode = SecurityCode.getSecurityCode(4,SecurityCodeLevel.Hard, false).toLowerCase();
//获取默认难度和长度的验证码
String securityCode = SecurityCode.getSecurityCode();
imageStream = SecurityImage.getImageAsInputStream(securityCode);
//放入session中
// session.put("SESSION_SECURITY_CODE", securityCode);
ActionContext.getContext().getSession().put("SESSION_SECURITY_CODE", securityCode);
return SUCCESS;
}
public void setSession(Map<String, Object> session) {
this.session = session;
}
}package biz.cld.web.action.user;
import com.opensymphony.xwork2.ActionContext;
import biz.cld.framework.action.BaseActionImpl;
/**
* 类说明
*
* @author 曾修建
* @version 创建时间：2014-7-8 下午11:58:33
*/
public class ValidAction extends BaseActionImpl {
private String code;//input
private boolean ok=false;//output-->json
public String execute()throws Exception{
Thread.sleep(1000);
//比较
String scode=(String) ActionContext.getContext().getSession().get("SESSION_SECURITY_CODE");
if(code.equalsIgnoreCase(scode)){
ok=true;
}else{
ok=false;
}
return "success";//调用jsonResult输出ok
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public boolean isOk() {
return ok;
}
public void setOk(boolean ok) {
this.ok = ok;
}
}
标签：验证码
原文地址：http://blog.csdn.net/wintersweetzeng/article/details/37591471
