Java工具类-验证码工具2

670432337

package code;

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 dongliyang
*/
@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);
        return SUCCESS;
    }

    public void setSession(Map<String, Object> session) {
        this.session = session;
    }

}