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hfdkjshfks 2015-08-17
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额，你的那些类都没有给我，我还是不知道你是怎么实现的啊？？？
hfdkjshfks 2015-08-17
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我都搜了一整天了，被逼无奈才到这里问的。
dcs4569 2015-08-17
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百度搜这种html生成验证码的代码一大堆，推荐去搜搜
dcs4569 2015-08-17
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百度搜这种html生成验证码的代码一大堆，推荐去搜搜
执笔记忆的空白 2015-08-17
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额 注释符号没打好，你将就着看吧
执笔记忆的空白 2015-08-17
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我这里有一段我们正在用的验证码，你可以看看
/*
* ValidateCodeServlet.java
* Created on 2015/3/19 10:30
*/
package com.cq2022.zago.base.servlet;
import com.cq2022.zago.base.constant.Constants;
import com.cq2022.zago.base.utils.vcode.ValidateCode;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
/**
* 验证码
* @version 1.0.1
*/
public class ValidateCodeServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest reqeust,
HttpServletResponse response) throws ServletException, IOException {
// 设置响应的类型格式为图片格式
response.setContentType("image/jpeg");
//禁止图像缓存。
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
HttpSession session = reqeust.getSession();
ValidateCode vCode = new ValidateCode(120, 40, 5, 50);
// 将认证码存入SESSION
session.setAttribute(Constants.RAND, vCode.getCode());
vCode.write(response.getOutputStream());
}
/**
* web.xml 添加servlet
<servlet>
<servlet-name>validateCodeServlet</servlet-name>
<servlet-class>cn.dsna.util.images.ValidateCodeServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>validateCodeServlet</servlet-name>
<url-pattern>*.images</url-pattern>
</servlet-mapping>
在地址栏输入XXX/dsna.images 测试
*/
}/*
* VerifyCodeServlet.java
* Created on 2015/6/7 18:53
*/
package com.cq2022.zago.base.servlet;
import com.cq2022.zago.base.constant.Constants;
import com.github.bingoohuang.patchca.color.ColorFactory;
import com.github.bingoohuang.patchca.color.SingleColorFactory;
import com.github.bingoohuang.patchca.custom.ConfigurableCaptchaService;
import com.github.bingoohuang.patchca.filter.predefined.*;
import com.github.bingoohuang.patchca.font.RandomFontFactory;
import com.github.bingoohuang.patchca.text.renderer.BestFitTextRenderer;
import com.github.bingoohuang.patchca.text.renderer.TextRenderer;
import com.github.bingoohuang.patchca.utils.encoder.EncoderHelper;
import com.github.bingoohuang.patchca.word.RandomWordFactory;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.*;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Random;
/**
* 验证码
*
* @version 1.0.1
*/
public class VerifyCodeServlet extends HttpServlet {
private static final String DEFAULT_CHARACTERS = "23456789abcdefghigkmnpqrstuvwxyzABCDEFGHIGKLMNPQRSTUVWXYZ"; // 自己设置
private static ConfigurableCaptchaService ccs = null;
private static ColorFactory cf = null;
private static TextRenderer tr = null;
private static RandomFontFactory ff = null;
private static RandomWordFactory rwf = null;
private static Random r = new Random();
private static CurvesRippleFilterFactory crff = null; //干扰线波纹
private static MarbleRippleFilterFactory mrff = null; //大理石波纹
private static DoubleRippleFilterFactory drff = null; //双波纹
private static WobbleRippleFilterFactory wrff = null; //摆波纹
private static DiffuseRippleFilterFactory dirff = null; //漫波纹
/**
* Constructor of the object.
*/
public VerifyCodeServlet() {
super();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
super.init();
ccs = new ConfigurableCaptchaService();
// cf = new SingleColorFactory(new Color(25, 60, 170));
cf = new ColorFactory() {
@Override
public Color getColor(int x) {
int[] c = new int[3];
int i = r.nextInt(c.length);
for (int fi = 0; fi < c.length; fi++) {
if (fi == i) {
c[fi] = r.nextInt(71);
} else {
c[fi] = r.nextInt(256);
}
}
return new Color(c[0], c[1], c[2]);
}
};
ff = new RandomFontFactory();
rwf = new RandomWordFactory();
tr = new BestFitTextRenderer();
crff = new CurvesRippleFilterFactory(ccs.getColorFactory());
drff = new DoubleRippleFilterFactory();
wrff = new WobbleRippleFilterFactory();
dirff = new DiffuseRippleFilterFactory();
mrff = new MarbleRippleFilterFactory();
rwf.setCharacters(DEFAULT_CHARACTERS);
ff.setRandomStyle(true);
// ff.setMaxSize(16);
// ff.setMinSize(12);
ccs.setTextRenderer(tr);
ccs.setFontFactory(ff);
ccs.setWordFactory(rwf);
ccs.setColorFactory(cf);
// ccs.setWidth(50);
// ccs.setHeight(20);
}
/**
* The doGet method of the servlet. <br>
* <p/>
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = request.getSession(true);
OutputStream os = response.getOutputStream();
rwf.setMaxLength(5);
rwf.setMinLength(4);
switch (r.nextInt(5)) {
case 0:
ccs.setFilterFactory(crff);
break;
case 1:
ccs.setFilterFactory(mrff);
break;
case 2:
ccs.setFilterFactory(drff);
break;
case 3:
ccs.setFilterFactory(wrff);
break;
case 4:
ccs.setFilterFactory(dirff);
break;
}
setResponseHeaders(response);
String captcha = EncoderHelper.getChallangeAndWriteImage(ccs, "png", os);
session.setAttribute(Constants.RAND, captcha);
os.flush();
os.close();
}
protected void setResponseHeaders(HttpServletResponse response) {
response.setContentType("image/png");
response.setHeader("Cache-Control", "no-cache, no-store");
response.setHeader("Pragma", "no-cache");
long time = System.currentTimeMillis();
response.setDateHeader("Last-Modified", time);
response.setDateHeader("Date", time);
response.setDateHeader("Expires", time);
}
/**
* The doPost method of the servlet. <br>
* <p/>
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doGet(request, response);
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
rwf = null;
cf = null;
ccs = null;
ff = null;
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
}
hfdkjshfks 2015-08-17
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对，怎么才能做成那样的效果。
你那两个都是图片进行扭曲，不是我想要的。
hfdkjshfks 2015-08-17
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对，怎么才能做成那样的效果。
你那两个都是图片进行扭曲，不是我想要的。
