Java Web应用程序web.xml参数转换为POJO

发布于 2024-10-06 21:38:57 字数 2055 浏览 0 评论 0原文

我有一个电子邮件实用程序类,由我的所有 Intranet Web 应用程序共享,该应用程序向员工发送忘记密码的电子邮件(该类被复制到每个 Web 应用程序中)。我需要使用与调用它的应用程序相匹配的适当主题行、回复联系人、应用程序名称等来标记电子邮件。

我可以将这些作为参数传递,但我的方法是在登录网页的标头中包含一个 initialize.jsp

<% request.setAttribute("siteEmail", "Commitment@<domain>.com");
   request.setAttribute("siteName", "Commitment Report Database");
   request.setAttribute("sitePOCEmail", "smith@<domain>.com");
%>

然后,这些请求参数通过 Struts 类似的 Action 存储到 DTO 中。

public class STKRequestPasswordAction implements ControllerAction {
public STKRequestPasswordAction() {}

public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

ApplicationConfig ac = new ApplicationConfig();
ac.setAppEmail(request.getAttribute("siteEmail").toString());
ac.setAppName(request.getAttribute("siteName").toString());
ac.setPocEmail(request.getAttribute("sitePOCEmail").toString());
request.setAttribute("ac", ac);

userForm.requestPassword(LoginUser, ac);

userForm.requestPassword 方法

public void requestPassword(STKUser loginUser, ApplicationConfig ac) {

验证输入的请求密码的用户 ID,构建 StringBuffer 消息,然后调用 Email Utility 类。

EmailUtils.sendEMailByBadge(loginUser.getBadge(), strFrom, strReplyTo, strSubject, emailBody.toString(), strSMTP, true);

我想从包含的 jsp 中重构我的初始化参数并将它们放入 web.xml 中,但我不确定应该在哪里读取这些值。我在 POJO

String strFrom = getServletContext().getInitParameter("siteEmail"); 中尝试过此操作 但POJO中没有servletContext。我想它可以进入我的 servlet,但我的 servlet 使用如下映射:

actionMap.put(null, new STKLoginSubmitAction());
actionMap.put("chkpass", new STKLoginSubmitAction());
actionMap.put("sqlReset", new STKRequestPasswordAction());
String op = request.getParameter("method");
ControllerAction action = (ControllerAction) actionMap.get(op);

我计划将 ApplicationConfig ac 移动到 servlet 并更改 STKRequestPasswordAction 的方法签名以传递‘交流’。这是最好的方法还是我错过了图片?

I have an email utility class that is shared by all my intranet web apps which emails an employee their forgotten password (well the class is copied into each webapp). I need to brand the email with appropriate Subject Line, ReplyTo Point Of Contact, Application Name, etc that matches the app that is calling it.

I'm able to pass these as parameters but the way I do it is by including an initialize.jsp in my header on the login webpage.

<% request.setAttribute("siteEmail", "Commitment@<domain>.com");
   request.setAttribute("siteName", "Commitment Report Database");
   request.setAttribute("sitePOCEmail", "smith@<domain>.com");
%>

These request parameter are then stored into a DTO by a Struts similar Action

public class STKRequestPasswordAction implements ControllerAction {
public STKRequestPasswordAction() {}

public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

ApplicationConfig ac = new ApplicationConfig();
ac.setAppEmail(request.getAttribute("siteEmail").toString());
ac.setAppName(request.getAttribute("siteName").toString());
ac.setPocEmail(request.getAttribute("sitePOCEmail").toString());
request.setAttribute("ac", ac);

userForm.requestPassword(LoginUser, ac);

The userForm.requestPassword method

public void requestPassword(STKUser loginUser, ApplicationConfig ac) {

validates the inputed userID requesting the password, builds the StringBuffer message, and then calls the Email Utility class.

EmailUtils.sendEMailByBadge(loginUser.getBadge(), strFrom, strReplyTo, strSubject, emailBody.toString(), strSMTP, true);

I'd like to refactor my initializing parameters out of the included jsp and put them into the web.xml, but I am not sure where I should be reading the values. I tried this in the POJO

String strFrom = getServletContext().getInitParameter("siteEmail");
but there is no servletContext in the POJO. I would imagine it could go in my servlet but my servlet uses a mapping as follows:

actionMap.put(null, new STKLoginSubmitAction());
actionMap.put("chkpass", new STKLoginSubmitAction());
actionMap.put("sqlReset", new STKRequestPasswordAction());
String op = request.getParameter("method");
ControllerAction action = (ControllerAction) actionMap.get(op);

I plan to move ApplicationConfig ac to the servlet and change the method signature for STKRequestPasswordAction to pass `ac'. Is this the best approach or am I missing the picture?

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浅黛梨妆こ 2024-10-13 21:38:57

在你的 web.xml 中:

<env-entry>
    <env-entry-name>myEntryName</env-entry-name>
    <env-entry-type>java.lang.String</env-entry-type>
    <env-entry-value>myEntryValue</env-entry-value>
</env-entry>

在你的 Java 代码中:

// Do once
Context env = (Context) new InitialContext().lookup("java:comp/env");

// Do for every entry
String entryValue = (String) env.lookup("myEntryName");

使用 JNDI,你可以在 web 应用程序中的每个位置读取你的设置,如果需要,也可以将你的配置保留在 web.xml 之外,在 Tomcat 的 context.xml 或 jetty-env.xml 中以 Jetty 为例(尽管格式不同)。

In your web.xml:

<env-entry>
    <env-entry-name>myEntryName</env-entry-name>
    <env-entry-type>java.lang.String</env-entry-type>
    <env-entry-value>myEntryValue</env-entry-value>
</env-entry>

In your Java code:

// Do once
Context env = (Context) new InitialContext().lookup("java:comp/env");

// Do for every entry
String entryValue = (String) env.lookup("myEntryName");

Using JNDI you can read your settings every where in your webapp and also keep your configs out of your web.xml if you need, in context.xml for Tomcat or jetty-env.xml for Jetty for example (though format is different).

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