ofbiz的验证码实现
看到一个ofbiz自实现的验证码代码，归案备用

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Login.flt中<img align=absbottom vspace=2 border=0 src="<@ofbizUrl>/CreateImage?Image=${encryRandom}&Rgb=255|0|0</@ofbizUrl>" title="验证码图片"></p><#assign random = Static["org.ofbiz.webapp.control.Picture"].getRandom()><#assign encryRandom = Static["org.ofbiz.webapp.control.Picture"].manage(random)>controller.xml文件中<!--pht--><request-map uri="CreateImage"><event type="java" path="org.ofbiz.webapp.control.CreateImage" invoke="make"/><response name="success" type="none"/><response name="error" type="none"/></request-map>LoginWorker.java 类中的login方法：String attach = null;String get_attach = null;if (attach == null)attach = request.getParameter("attach");if (get_attach == null)get_attach = request.getParameter("get_attach");if (get_attach == null) {String errMsg = "系统错误,请再次登录!";request.setAttribute("_ERROR_MESSAGE_", errMsg);return "error";}String tmp = Picture.discrypt(get_attach);if (!attach.equals(tmp)) {String errMsg = "请输入正确的验证码!";request.setAttribute("_ERROR_MESSAGE_", errMsg);return "error";}因此在login.flt 中：<#assign attach = Static["org.ofbiz.webapp.control.Picture"].discrypt(encryRandom)><input type="text" name="attach" value="${attach}" size="4"/>