Maven（五）：Kaptcha的簡單小例（一）

時間  2019-12-06
標籤 maven kaptcha 簡單 欄目 Maven 简体版
原文   原文鏈接

        之前沒看到過Kaptcha這種東東, 更別說拿來用了，雖然也不知道怎麼樣，在看完Maven教程的時候，有提到kaptcha這種生成驗證碼的第三方庫，因而好奇會是神馬樣子，在加之Maven，小白的我拿來先用用吧 。。。。html

        不過可憐的我 ，剛接觸Maven  甚至是第一次接觸Kaptcha，連Maven中的那些文件， 包結構都跟之前看到的不同 ，而後有點各類懵  。。。。懵。。。懵。。。  （ 附上源碼 ：  ）java

  1. 先看看有點亂的包結構：web

     2.  pom.xml:apache

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.yc.ssm</groupId>
	<artifactId>SSM_001</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>SSM_001 Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.12</version>
			<scope>test</scope>
		</dependency>
		
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.17</version>
		</dependency>
		
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-core</artifactId>
			<version>2.1</version>
		</dependency>
		
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.3.0</version>
		</dependency>
		
		<dependency>
			<groupId>com.oracle</groupId>
			<artifactId>oracle-driver</artifactId>
			<version>11g</version>
		</dependency>

		<dependency>
			<groupId>org.apache.struts</groupId>
			<artifactId>struts2-core</artifactId>
			<version>2.5-BETA2</version>
		</dependency>
		<dependency>
			<groupId>com.google.code</groupId>
			<artifactId>kaptcha</artifactId>
			<version>2.3.2</version>
		</dependency>
		
		<dependency>
			<groupId>org.apache.struts</groupId>
			<artifactId>struts2-json-plugin</artifactId>
			<version>2.3.24</version>
		</dependency>
		
	</dependencies>
	
	<build>
		<finalName>SSM_001</finalName>
	</build>
	
</project>

    而後拿到了一堆包：
json

        

        3.以前就寫過,想使用kaptcha生成驗證碼，只須要在web.xml中配置 ：session

            來看看web.xml:mybatis

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- 登錄驗證碼Kaptcha 2-->
    <servlet>
        <servlet-name>Kaptcha</servlet-name>
        <servlet-class>
          com.google.code.kaptcha.servlet.KaptchaServlet
        </servlet-class>
        <init-param>
            <description>圖片邊框，合法值：yes , no</description>
            <param-name>kaptcha.border</param-name>
            <param-value>yes</param-value>
        </init-param>
        <init-param>
            <description>
                邊框顏色，合法值： r,g,b (and optional alpha) 或者
                white,black,blue.
            </description>
            <param-name>kaptcha.border.color</param-name>
            <param-value>black</param-value>
        </init-param>
        <init-param>
            <description>邊框厚度，合法值：>0</description>
            <param-name>kaptcha.border.thickness</param-name>
            <param-value>1</param-value>
        </init-param>
        <init-param>
            <description>圖片寬 160</description>
            <param-name>kaptcha.image.width</param-name>
            <param-value>180</param-value>
        </init-param>
        <init-param>
            <description>圖片高 32</description>
            <param-name>kaptcha.image.height</param-name>
            <param-value>50</param-value>
        </init-param>
        <init-param>
            <description>圖片實現類</description>
            <param-name>kaptcha.producer.impl</param-name>
            <param-value>
                com.google.code.kaptcha.impl.DefaultKaptcha
            </param-value>
        </init-param>
        <init-param>
            <description>文本實現類</description>
            <param-name>kaptcha.textproducer.impl</param-name>
            <param-value>
                com.google.code.kaptcha.text.impl.DefaultTextCreator
            </param-value>
        </init-param>
        <init-param>
            <description>文本集合，驗證碼值今後集合中獲取</description>
            <param-name>kaptcha.textproducer.char.string</param-name>
            <param-value>1234567890abcdefghijklmnopqrstuvwxyz</param-value>
        </init-param>
        <init-param>
            <description>驗證碼長度 5</description>
            <param-name>kaptcha.textproducer.char.length</param-name>
            <param-value>4</param-value>
        </init-param>
        <init-param>
            <description>字體 Arial, Courier</description>
            <param-name>kaptcha.textproducer.font.names</param-name>
            <param-value>Arial, Courier</param-value>
        </init-param>
        <init-param>
            <description>字體大小 40px.</description>
            <param-name>kaptcha.textproducer.font.size</param-name>
            <param-value>32</param-value>
        </init-param>
        <init-param>
            <description>
                字體顏色，合法值： r,g,b 或者 white,black,blue.
            </description>
            <param-name>kaptcha.textproducer.font.color</param-name>
            <param-value>black</param-value>
        </init-param>
        <init-param>
            <description>文字間隔 2</description>
            <param-name>kaptcha.textproducer.char.space</param-name>
            <param-value>2</param-value>
        </init-param>
        <init-param>
            <description>干擾實現類</description>
            <param-name>kaptcha.noise.impl</param-name>
            <param-value>
                 com.google.code.kaptcha.impl.NoNoise 
               <!--  com.google.code.kaptcha.impl.DefaultNoise--> 
            </param-value>
        </init-param>
        <init-param>
            <description>
                干擾顏色，合法值： r,g,b 或者 white,black,blue.
            </description>
            <param-name>kaptcha.noise.color</param-name>
            <param-value>black</param-value>
        </init-param>
        <init-param>
            <description>
                圖片樣式： 水紋com.google.code.kaptcha.impl.WaterRipple
                魚眼com.google.code.kaptcha.impl.FishEyeGimpy
                陰影com.google.code.kaptcha.impl.ShadowGimpy
            </description>
            <param-name>kaptcha.obscurificator.impl</param-name>
            <param-value>
                com.google.code.kaptcha.impl.WaterRipple
            </param-value>
        </init-param>
        <init-param>
            <description>背景實現類</description>
            <param-name>kaptcha.background.impl</param-name>
            <param-value>
                com.google.code.kaptcha.impl.DefaultBackground
            </param-value>
        </init-param>
        <init-param>
            <description>背景顏色漸變，開始顏色</description>
            <param-name>kaptcha.background.clear.from</param-name>
            <param-value>green</param-value>
        </init-param>
        <init-param>
            <description>背景顏色漸變，結束顏色</description>
            <param-name>kaptcha.background.clear.to</param-name>
            <param-value>white</param-value>
        </init-param>
        <init-param>
            <description>文字渲染器</description>
            <param-name>kaptcha.word.impl</param-name>
            <param-value>
                com.google.code.kaptcha.text.impl.DefaultWordRenderer
            </param-value>
        </init-param>
        <init-param>
            <description>
                session中存放驗證碼的key鍵
            </description>
            <param-name>kaptcha.session.key</param-name>
            <param-value>KAPTCHA_SESSION_KEY</param-value>
        </init-param>
        <init-param>
            <description>
                The date the kaptcha is generated is put into the
                HttpSession. This is the key value for that item in the
                session.
            </description>
            <param-name>kaptcha.session.date</param-name>
            <param-value>KAPTCHA_SESSION_DATE</param-value>
        </init-param>
    </servlet>
    
    <servlet-mapping>
        <servlet-name>Kaptcha</servlet-name>
        <url-pattern>/randomcode.jpg</url-pattern>
    </servlet-mapping>
    
     <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
  
</web-app>

    需注意幾處地方：oracle

  


4. 再來看看 struts.xml 中內容：app

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
	<!-- 關閉動態方法調用  actionid	 -->
    <constant name="struts.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="true" />
    <package name="default" namespace="/" extends="json-default">
         <action name="userLoginAction" class="com.yc.web.actions.UserLoginAction">
	     <result type="json" name="success">
	        <param name="root">jsonModel</param>
                <param name="contentType">
                    text/html
                </param>
            </result>
            
        </action>
    </package>
</struts>

    

5. UserLogin.java:dom

public class UserLogin implements Serializable {

	private static final long serialVersionUID = 1L;
	private String uname;
	private String pwd;
	private String checkCode;  //input code 
	private String ackCode;   // img code 
	
	public String getUname() {
		return uname;
	}
	public void setUname(String uname) {
		this.uname = uname;
	}
	public String getPwd() {
		return pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public String getCheckCode() {
		return checkCode;
	}
	public void setCheckCode(String checkCode) {
		this.checkCode = checkCode;
	}
	public String getAckCode() {
		return ackCode;
	}
	public void setAckCode(String ackCode) {
		this.ackCode = ackCode;
	}
	
	@Override
	public String toString() {
		return "UserLogin [uname=" + uname + ", pwd=" + pwd + ", checkCode=" + checkCode + ", ackCode=" + ackCode + "]";
	}
	
	public UserLogin(String uname, String pwd, String checkCode, String ackCode) {
		super();
		this.uname = uname;
		this.pwd = pwd;
		this.checkCode = checkCode;
		this.ackCode = ackCode;
	}
	public UserLogin() {
		super();
	}
}


                             接下一篇： http://my.oschina.net/gently/blog/631769 《 Kaptcha的簡單小例（二）》

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